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      <title>La teoria della tettonica delle placche by Sandro Cantoni</title>
      <link>https://padlet.com/profsandrocantoni/tettonica</link>
      <description>Il modello sulla dinamica della Terra  in grado di spiegare i fenomeni che interessano la crosta terrestre quali l&#39;attività sismica e vulcanica, l&#39; orogenesi, la presenza delle fosse oceaniche e gli archi vulcanici.</description>
      <language>en-us</language>
      <pubDate>2016-04-01 16:09:35 UTC</pubDate>
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      <webMaster>hello@padlet.com</webMaster>
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      <item>
         <title>La teoria della tettonica delle placche</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/103668113</link>
         <description><![CDATA[<div>Pagina Wikipedia sulla teoria della tettonica delle placche</div>]]></description>
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         <pubDate>2016-04-01 16:37:19 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/103668113</guid>
      </item>
      <item>
         <title>Alfred Wegener</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/103668312</link>
         <description><![CDATA[<div>(<a href="https://it.wikipedia.org/wiki/Berlino">Berlino</a>,&nbsp;<a href="https://it.wikipedia.org/wiki/1%C2%BA_novembre">1º novembre</a>&nbsp;<a href="https://it.wikipedia.org/wiki/1880">1880</a>&nbsp;–&nbsp;<a href="https://it.wikipedia.org/wiki/Groenlandia">Groenlandia</a>,&nbsp;<a href="https://it.wikipedia.org/wiki/3_novembre">3 novembre</a>&nbsp;<a href="https://it.wikipedia.org/wiki/1930">1930</a>) è stato un&nbsp;<a href="https://it.wikipedia.org/wiki/Geologo">geologo</a>,&nbsp;<a href="https://it.wikipedia.org/wiki/Meteorologo">meteorologo</a>&nbsp;ed&nbsp;<a href="https://it.wikipedia.org/wiki/Esplorazioni_geografiche">esploratore</a>&nbsp;<a href="https://it.wikipedia.org/wiki/Germania">tedesco</a>.<br>E' il più noto sostenitore delle teorie "mobiliste", ricordato soprattutto per aver formulato, nel&nbsp;<a href="https://it.wikipedia.org/wiki/1912">1912</a>, la&nbsp;<a href="https://it.wikipedia.org/wiki/Teoria">teoria</a>&nbsp;della&nbsp;<a href="https://it.wikipedia.org/wiki/Deriva_dei_continenti">deriva dei continenti</a>, da cui derivò la teoria della&nbsp;<a href="https://it.wikipedia.org/wiki/Tettonica_a_placche">tettonica a placche</a>.&nbsp;<br><br></div>]]></description>
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         <pubDate>2016-04-01 16:38:33 UTC</pubDate>
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      </item>
      <item>
         <title>Mappa delle placche tettoniche</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/103668745</link>
         <description><![CDATA[<div>Una rappresentazione delle principali placche litosferiche</div>]]></description>
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         <pubDate>2016-04-01 16:40:52 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/103668745</guid>
      </item>
      <item>
         <title>Margini convergenti (o distruttivi)</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/103669014</link>
         <description><![CDATA[<div>Litosfera oceanica contro litosfera oceanica;<br>Litosfera oceanica contro litosfera continentale<br>Litosfera continentale contro litosfera continentale</div>]]></description>
         <enclosure url="http://www.dima.unige.it/~denegri/PLS2/PENSIERO_SCIENTIFICO%20DEF/Scienza_edilizia/Pages/onvergenti%20o%20distruttivi.htm" />
         <pubDate>2016-04-01 16:42:36 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/103669014</guid>
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      <item>
         <title>Margini divergenti (o costruttivi)</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/103669296</link>
         <description><![CDATA[<div>Dorsali oceaniche<br>Rift Valley</div>]]></description>
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         <pubDate>2016-04-01 16:44:30 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/103669296</guid>
      </item>
      <item>
         <title>Margini trascorrenti (o conservativi)</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/103669441</link>
         <description><![CDATA[<div>Faglie trascorrenti</div>]]></description>
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         <pubDate>2016-04-01 16:45:30 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/103669441</guid>
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      <item>
         <title>Video: margini divergenti</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/103670795</link>
         <description><![CDATA[]]></description>
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         <pubDate>2016-04-01 16:52:43 UTC</pubDate>
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      <item>
         <title>Video: margini convergenti</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/103670899</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.youtube.com/watch?v=QWhb3bOrlTE" />
         <pubDate>2016-04-01 16:53:17 UTC</pubDate>
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      <item>
         <title>Video: margini trascorrenti</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/103671056</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.youtube.com/watch?v=EFQDZeAEPa0" />
         <pubDate>2016-04-01 16:54:07 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/103671056</guid>
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      <item>
         <title>Video: gli hot spots (punti caldi)</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/103671483</link>
         <description><![CDATA[]]></description>
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         <pubDate>2016-04-01 16:56:13 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/103671483</guid>
      </item>
      <item>
         <title>La situazione delle placche tettoniche nel bacino del Mediterraneo</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/103672560</link>
         <description><![CDATA[<div>Viene evidenziata la presenza della placca Adria che potrebbe essere una microplacca a sé stante oppure potrebbe appartenere alla grande placca africana. La maggior parte della Turchia ed una parte della Grecia meridionale appartengono invece alla placca anatolica, bordata a nord dalla faglia trascorrente nord-anatolica, generatrice di forti terremoti.</div>]]></description>
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         <pubDate>2016-04-01 17:02:56 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/103672560</guid>
      </item>
      <item>
         <title>Video: l&#39;espansione dei fondali oceanici e il paleomagnetismo</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/103697424</link>
         <description><![CDATA[<div>Il video mostra come il fenomeno dell'inversione periodica dei poli magnetici terrestri abbia fornito la prova definitiva dell'espansione dei fondali oceanici.</div>]]></description>
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         <pubDate>2016-04-01 19:25:05 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/103697424</guid>
      </item>
      <item>
         <title>Dispense sulla tettonica a placche</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/103793970</link>
         <description><![CDATA[]]></description>
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         <pubDate>2016-04-03 22:21:08 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/103793970</guid>
      </item>
      <item>
         <title>Gli effetti della tettonica compressiva</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/103973170</link>
         <description><![CDATA[<div>Serie di pieghe nelle rocce di una catena montuosa: sono gli effetti delle enormi pressioni che si originano in un margine convergente quando si verifica una collizione continente-continente</div>]]></description>
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         <pubDate>2016-04-04 17:54:19 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/103973170</guid>
      </item>
      <item>
         <title>Schema della dinamica della litosfera</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/104894542</link>
         <description><![CDATA[<div>Margini divergenti, convergenti e trascorrenti, rift valley, hot spot, movimento delle placche</div>]]></description>
         <enclosure url="http://www.digilands.it/natura-illustrata/geologia/tettonica-2/Fig13ITA.jpg" />
         <pubDate>2016-04-09 19:59:46 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/104894542</guid>
      </item>
      <item>
         <title>Wegener e la teoria della deriva dei continenti </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/148274364</link>
         <description><![CDATA[<div>Le prove a supporto della teoria (in inglese)</div>]]></description>
         <enclosure url="http://geologylearn.blogspot.it/2016/02/wegeners-evidence-for-continental-drift.html?m=1" />
         <pubDate>2017-01-20 04:09:09 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/148274364</guid>
      </item>
      <item>
         <title>Tettonica delle placche</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/149221987</link>
         <description><![CDATA[<div>Video in inglese</div>]]></description>
         <enclosure url="https://www.facebook.com/geologylearn/videos/762814400549713/" />
         <pubDate>2017-01-25 05:11:34 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/149221987</guid>
      </item>
      <item>
         <title>La dorsale medio-atlantica </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/154375720</link>
         <description><![CDATA[<div>Mappa che mostra il fondale dell'Oceano Atlantico, in cui si evidenzia molto bene la Dorsale medio-atlantica, realizzata da Bruce Heezen e Marie Tharp, pubblicata come supplemento al numero di Giugno del 1968 dalla National Geographic Magazine.</div>]]></description>
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         <pubDate>2017-02-16 16:51:12 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/154375720</guid>
      </item>
      <item>
         <title>Nascita della catena Himalayana</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/155061564</link>
         <description><![CDATA[<div>Video animazione</div>]]></description>
         <enclosure url="https://m.youtube.com/watch?v=loFxYSHxTf0" />
         <pubDate>2017-02-21 05:26:55 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/155061564</guid>
      </item>
      <item>
         <title>Wegener e la Pangea</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/164132444</link>
         <description><![CDATA[<div>Wegener suggested that a vast supercontinent, Pangaea, existed until near the end of the Mesozoic Era (the interval of geologic time that lasted from 251 to 65 million years ago). He suggested that Pangaea then broke apart, and the landmasses moved away from each other to form the continents we see today. Let’s look at some of Wegener’s arguments and see what led him to formulate this hypothesis of continental drift.</div><div>#LearningGeology #Wegners #Evidence</div>]]></description>
         <enclosure url="http://geologylearn.blogspot.it/2016/02/wegeners-evidence-for-continental-drift.html?m=1" />
         <pubDate>2017-04-01 22:40:09 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/164132444</guid>
      </item>
      <item>
         <title>Orogenesi</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/169908815</link>
         <description><![CDATA[<div>Orogenesi della catena alpino-himalayana riassunta in un minuto e 14 secondi. | Video caricato da @Digital Reading.</div>]]></description>
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         <pubDate>2017-05-04 12:26:50 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/169908815</guid>
      </item>
      <item>
         <title>Formazione degli archi di isole vulcaniche </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/171407713</link>
         <description><![CDATA[<div>Video animazione in inglese </div>]]></description>
         <enclosure url="https://www.facebook.com/geologylearn/videos/662306123933875/" />
         <pubDate>2017-05-12 04:35:33 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/171407713</guid>
      </item>
      <item>
         <title>Dorsale medio-atlantica in Islanda </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/175082085</link>
         <description><![CDATA[<div>Siamo sopra la Dorsale Medio Atlantica, questo é Il punto in cui le due Placche Tettoniche, quella Euroasiatica e Nordamericana si separano ad una velocità   di circa 2 cm/anno o 2,5 km ogni 100 mila anni, http://www.geologi.it/mem/geomar/dorsali.htm   La Fessura di Silfra in Islanda ripresa da un drone. Video pubblicato da @StrucGeology. http://www.silfra.org/the_geology_of_silfra.html</div>]]></description>
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         <pubDate>2017-06-03 21:03:03 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/175082085</guid>
      </item>
      <item>
         <title>La formazione del Mediterraneo e delle Alpi</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/198931667</link>
         <description><![CDATA[<div>Video</div>]]></description>
         <enclosure url="https://www.facebook.com/LAngoloDellaGeologia/videos/1550686921643748/" />
         <pubDate>2017-10-20 03:53:46 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/198931667</guid>
      </item>
      <item>
         <title>Atlas underworld</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/200681749</link>
         <description><![CDATA[<div>Atlante del mantello terrestre</div>]]></description>
         <enclosure url="http://aldopiombino.blogspot.it/2017/10/atlas-of-underworld-un-sito-che.html" />
         <pubDate>2017-10-26 05:00:59 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/200681749</guid>
      </item>
      <item>
         <title>La formazione delle Alpi e del monte Cervino</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/201620363</link>
         <description><![CDATA[<div>Video National Geographic</div>]]></description>
         <enclosure url="https://www.facebook.com/chevuoldireingeologiapage/videos/1694945727190485/" />
         <pubDate>2017-10-30 08:18:58 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/201620363</guid>
      </item>
      <item>
         <title>Cinematica delle placche </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/205131135</link>
         <description><![CDATA[<div>SUBDUCTION ZONES AND EVOLUTION OF PLATE TECTONIC  FROM THE UPPER TRIASSIC (230 Ma.)- Questa nuova animazione che mostra la cinematica delle placche  degli ultimi 230 milioni di anni é stata realizzata con la tomografia sismica. Nel video sono state ricostruite anche le linee di subduzione in cui la litosfera sprofonda (zone blu) diversificando la densità del mantello con gli altri colori.  #RiferimentoBibliografico:  Scotese, C.R., and Spakman, W., 2017. Subduction Zones; Charon's Ferry to the Underworld - scotese.com</div>]]></description>
         <enclosure url="https://www.facebook.com/PangeaScienze/videos/1846135602083069/" />
         <pubDate>2017-11-09 04:28:55 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/205131135</guid>
      </item>
      <item>
         <title>La formazione del Mediterraneo e delle Alpi</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/218077073</link>
         <description><![CDATA[<div>Video animazione</div>]]></description>
         <enclosure url="https://www.facebook.com/LAngoloDellaGeologia/videos/1114659645246480/" />
         <pubDate>2017-12-27 23:24:36 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/218077073</guid>
      </item>
      <item>
         <title> Limite di placca Confine tra placca nordamericana e placca euro asiatica</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/227495799</link>
         <description><![CDATA[<div>Islanda: confine tra placca nordamericana e placca euro-asiatica</div>]]></description>
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         <pubDate>2018-02-02 14:28:00 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/227495799</guid>
      </item>
      <item>
         <title>Movimenti delle placche </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/227792877</link>
         <description><![CDATA[<div>What Drives Plate Tectonics? Overview of Processes | Quale processo alimenta il movimento delle placche litosferiche? Le placche litosferiche fanno parte di un sistema di convezione termica strutturato su scala planetaria. La fonte di energia che determina la tettonica delle placche è il calore interno della Terra, mentre le grandezza fisiche che muovono le placche sono le forze gravitazionali di "ridge push" per le dorsali e di "slab pull" per le zone di subduzione. Una volta si pensava che la convezione del mantello potesse guidare i movimenti delle placche. I primi libri di testo mostravano celle  di convezione del mantello, come accade in un contenitore di liquido caldo posto su un fornello. I modelli dinamici attuali mostrano le placche che si muovono come parte di un sistema di convezione gravitazionale che spinge la litosfera recente lontano dalle dorsali mentre la più antica affonda nelle zone di subduzione. Tramite IRIS EPO.</div>]]></description>
         <enclosure url="https://www.facebook.com/PangeaScienze/videos/1939000126129949/" />
         <pubDate>2018-02-03 21:23:33 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/227792877</guid>
      </item>
      <item>
         <title>Tettonica delle placche</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/230909199</link>
         <description><![CDATA[<div>Ppt e video</div>]]></description>
         <enclosure url="http://slideplayer.it/slide/189387/" />
         <pubDate>2018-02-13 04:43:43 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/230909199</guid>
      </item>
      <item>
         <title>Dorsali oceaniche </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/239525063</link>
         <description><![CDATA[<div>Marie Tharp: la donna che svelo i segreti degli oceani</div>]]></description>
         <enclosure url="http://scienzegeologichepage.blogspot.it/2017/02/marie-tharp-la-donna-che-svelo-i.html?m=1" />
         <pubDate>2018-03-08 07:28:31 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/239525063</guid>
      </item>
      <item>
         <title>Rift valley </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/249038748</link>
         <description><![CDATA[<div>#RiftValleyFormation - Questo modello in scala ricostruito in laboratorio, simula il processo di estensione e rottura delle placche litosferiche continentali che precede la formazione di un nuovo bacino oceanico, come si sta verificando nella Rift Valley da  30 milioni di anni. Un processo che terminerà tra circa 10 milioni di anni con la formazione di una nuova isola e nuove catane montuose. Video caricato da @Structural Geology.</div>]]></description>
         <enclosure url="https://www.facebook.com/groups/geologi.it/permalink/10156331348169083/" />
         <pubDate>2018-04-05 20:01:22 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/249038748</guid>
      </item>
      <item>
         <title>Placche tettoniche</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/250629063</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/105667511/c201810cb09714898d024ac6679a753e/placche.png" />
         <pubDate>2018-04-11 10:16:54 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/250629063</guid>
      </item>
      <item>
         <title>Margini trascorrenti</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/252884104</link>
         <description><![CDATA[<div>Faglia di San Andreas</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/105667511/5d9a98ef32fc665b3a384439fc97cf7b/fault_6.jpg" />
         <pubDate>2018-04-18 07:59:57 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/252884104</guid>
      </item>
      <item>
         <title>Mediterraneo</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/252884706</link>
         <description><![CDATA[<div>La situazione tettonica nell'area del Mediterraneo</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/105667511/eb13ec9c3b217693a426faf19e598a36/placche_mediterraneo.jpg" />
         <pubDate>2018-04-18 08:02:44 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/252884706</guid>
      </item>
      <item>
         <title> Movimento delle placche tettoniche </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/261712074</link>
         <description><![CDATA[<div>GPS Time Series - La direzione e la velocità a cui si muovono le placche litosferiche misurata dal satelliti GPS della NASA JPL https://sideshow.jpl.nasa.gov/post/series.html</div>]]></description>
         <enclosure url="https://sideshow.jpl.nasa.gov/post/series.html" />
         <pubDate>2018-05-17 18:43:20 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/261712074</guid>
      </item>
      <item>
         <title>L’anello di fuoco</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/266314184</link>
         <description><![CDATA[<div>Video</div>]]></description>
         <enclosure url="https://www.facebook.com/geologiamag/videos/1700452356718486/" />
         <pubDate>2018-06-08 13:47:10 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/266314184</guid>
      </item>
      <item>
         <title>Paleomagnetismo ed espansione dei fondali oceanici </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/268885158</link>
         <description><![CDATA[<div>Articolo INGV</div>]]></description>
         <enclosure url="https://ingvambiente.wordpress.com/2018/06/28/gli-oceani-si-espandono-lo-conferma-il-paleomagnetismo/" />
         <pubDate>2018-06-28 16:43:26 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/268885158</guid>
      </item>
      <item>
         <title>Faglia di S. Andreas</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/269958440</link>
         <description><![CDATA[<div>Spostamento laterale trascorrente della Faglia di San Andreas, sottolineato dallo steccato.</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/105667511/2e87d9fb88ce93fd43d155273ed97a95/media.jpeg" />
         <pubDate>2018-07-11 14:58:56 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/269958440</guid>
      </item>
      <item>
         <title>Tettonica a zolle</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/279090688</link>
         <description><![CDATA[<div>Da Wegener a Wilson</div>]]></description>
         <enclosure url="http://www.ocean4future.org/archives/3918" />
         <pubDate>2018-09-08 16:02:02 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/279090688</guid>
      </item>
      <item>
         <title>Fenomeni connessi ai movimenti delle placche </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/288958829</link>
         <description><![CDATA[<div>Video dalla pag FB L’angolo della geologia</div>]]></description>
         <enclosure url="https://www.facebook.com/LAngoloDellaGeologia/videos/244099882941471/" />
         <pubDate>2018-10-04 04:34:00 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/288958829</guid>
      </item>
      <item>
         <title>Formazione dell’Oceano Atlantico</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/295773686</link>
         <description><![CDATA[<div>Birth of the Atlantic<br><br>This is a gorgeous computer rendering of the opening of the Atlantic Ocean and the breakup of the Supercontinent Pangaea.<br>During the Triassic and Jurassic, North America began rifting from the part of Gondwana (today Africa) that it had collided with to build the Appalachian Mountains and later during the Jurassic, the huge block of South America and Africa that had been linked together for hundreds of millions of years also separated.<br><br>The breakup of a Supercontinent can have many causes. Plates far away can be pulled down into the mantle and a rigid plate could transmit stress to weak points far away, causing the plate to pull apart. Alternatively, something could wedge its way in-between the plates and force them apart; both of these breakups occur at the same time as huge outpourings of volcanic lava, maybe suggesting that a hot plume of mantle material rose up and pushed them apart. The arrows that appear and change on each plate show how the plate motion directions change as these different forces interact. The longer the arrow = the faster the plate is moving.<br><br>The plate motions of the past 200 million years or so are known extremely well because of magnetic anomalies. When new seafloor is created at a mid-ocean ridge, that seafloor records the direction of the Earth’s magnetic field at the time. As the rocks move away from the ridge, they preserve a record of where on the planet’s surface they formed. By mapping out magnetic anomalies across the planet’s ocean floors, we find a record of how the oceanic plates move.<br><br>That record only goes back about 200 million years because that’s the oldest oceanic crust on Earth. Almost all the oceanic crust older than that age has cooled off so much and become so dense that it has readily subducted, heading down into the mantle to start the cycle again. The age contours in this plot let you see how that age progression happens; new crust formed at mid-ocean ridges and then older crust vanishing beneath subduction zones like those on the western side of North and South America.<br><br>-JBB<br><br>Video Credit: NOAA<br>http://sos.noaa.gov/Datasets/dataset.php?id=569</div>]]></description>
         <enclosure url="https://www.facebook.com/TheEarthStory/videos/907914662602912/" />
         <pubDate>2018-10-23 03:35:12 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/295773686</guid>
      </item>
      <item>
         <title>Tetide</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/316574191</link>
         <description><![CDATA[<div>Storia di un oceano</div>]]></description>
         <enclosure url="http://www.langolodellageologia.com/2016/06/tetide-oceano-tetide.html?m=1" />
         <pubDate>2018-12-23 20:58:54 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/316574191</guid>
      </item>
      <item>
         <title>Apertura dell&#39;oceano Atlantico</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/316777342</link>
         <description><![CDATA[<div>Video animazione </div>]]></description>
         <enclosure url="https://m.facebook.com/story.php?story_fbid=10156561167064974&amp;id=273546914973" />
         <pubDate>2018-12-28 07:43:14 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/316777342</guid>
      </item>
      <item>
         <title>Video: margini divergenti</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/331658874</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.youtube.com/watch?v=_gngzP0vsdQ" />
         <pubDate>2019-02-15 09:46:25 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/331658874</guid>
      </item>
      <item>
         <title>Placche litosferiche</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/333114801</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/105667511/20270b7d62297c59bc2b3eef5d623ada/placche.jpg" />
         <pubDate>2019-02-20 10:38:48 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/333114801</guid>
      </item>
      <item>
         <title>Educational multimedia</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/333116224</link>
         <description><![CDATA[<div>Materiali didattici</div>]]></description>
         <enclosure url="http://emvc.geol.ucsb.edu/1_DownloadPage/Download_Page.html?fbclid=IwAR3Octx3Eq8ZYVhv6uqN4oARk2AtENK1IdKe0DBYJ0-7mOoPvgzkUpqs3-w#GlobalTectonics" />
         <pubDate>2019-02-20 10:44:26 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/333116224</guid>
      </item>
      <item>
         <title>Wegener </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/353921118</link>
         <description><![CDATA[<div>History- where did the idea of plate tectonics come from?<br><br>I think it makes something more memorable when you know where something came from, so I thought I would look up the history of plate tectonics – which I find has been around for a surprisingly short time!!!<br><br>  The whole idea of plate tectonics had its origins in 1912 with a German scientist, Alfred Wegener, who noticed that if all the pieces of the earth were jigsaw pieces they would kind of fit in together perfectly.  He actually wasn’t the first to notice this – some explorers had noticed the Africa looked as if it could fit into South America and there had been a paper written some 300+ years ago that suggested it – but Wegener was the first to propose they had been stuck together, were still moving apart and postulated a mechanism as to why they were moving apart.<br>Everyone at the time thought Wegener was pretty silly but he did have some evidence to back up his claims.  Palaeontologists, digging up fossils, had found similar remains on the coasts of two continents that Wegener had predicted were once joined together, but were now separated by many thousands of kilometers (previously paleontologists had said the continents must have been linked by bridges).  Wegener went further by developing his “Continental Drift” theory.<br>Wegener’s Continental Drift theory, although inaccurate, paved the way for the modern theory of plate tectonics. Wegener suggested that the continents had, in the past, all been joined together into a giant super-continent – which was later labelled as Pangea (Ancient Greek for Entire Earth) and that continents were moving away from each other toward the equator due to centafugal force from the earths rotation.  He also hypothesized that as the continents move they encounter resistance from the crust in-front of them.  The resistance causes areas of the continent to compress.<br>#geology #amazing #plate</div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/105667511/59f3ec3d99d87c9c0c3722e3ee416731/media.jpeg" />
         <pubDate>2019-04-24 21:04:12 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/353921118</guid>
      </item>
      <item>
         <title>Margini di placca e hotspots </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/396943497</link>
         <description><![CDATA[<div>Infografica </div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/105667511/b6ab12eb7cbcd500c400a47cb5597646/media.jpeg" />
         <pubDate>2019-10-12 04:58:44 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/396943497</guid>
      </item>
      <item>
         <title>Formazione del Mediterraneo</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/449591694</link>
         <description><![CDATA[<div>Video dalla pagina FB Geology is the way</div>]]></description>
         <enclosure url="https://www.facebook.com/665536646832157/posts/2963965673655898/?vh=e" />
         <pubDate>2020-02-24 16:59:05 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/449591694</guid>
      </item>
      <item>
         <title>Africa </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/1490948523</link>
         <description><![CDATA[<div>L’Africa tra 10 milioni di anni secondo i dati attuali&nbsp;</div>]]></description>
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         <pubDate>2021-05-04 17:49:02 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/1490948523</guid>
      </item>
      <item>
         <title>Margini di placca</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/2202843686</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://youtu.be/o9U8smn4cfw" />
         <pubDate>2022-05-28 09:55:46 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/2202843686</guid>
      </item>
      <item>
         <title>Movimento delle placche del paleozoico ad oggi</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/2428894025</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/105667511/0fa327a7950475dc4e86fa7d136e7435/739F21C2_E9A4_4CBB_AF9A_733EB6C5B028.MOV" />
         <pubDate>2022-12-26 11:23:04 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/2428894025</guid>
      </item>
      <item>
         <title>Formazione dell’Himalaya</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/2484092690</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.instagram.com/reel/ClQEU5PJTK_/?igshid=YmMyMTA2M2Y=" />
         <pubDate>2023-02-15 20:38:11 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/2484092690</guid>
      </item>
      <item>
         <title>Formazione dell’Hymalaia</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/2504688176</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.instagram.com/reel/CoZ8UK4j5Z7/?igshid=YmMyMTA2M2Y=" />
         <pubDate>2023-03-06 06:59:10 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/2504688176</guid>
      </item>
      <item>
         <title>Fossa delle Marianne</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/2631369402</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.instagram.com/reel/Ct3L5UfomKB/?igshid=YzcxN2Q2NzY0OA==" />
         <pubDate>2023-06-24 07:29:27 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/2631369402</guid>
      </item>
      <item>
         <title>Marie Tharp</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/2653744239</link>
         <description><![CDATA[<div>Il 30 luglio del 1920 nasceva a Ypsilanti (Michigan), Marie Tharp, la scienziata che contribuì alla redazione della prima mappa di dettaglio del fondale oceanico rilevando la presenza della dorsale medio atlantica. Il suo lavoro ha contribuito all’accettazione da parte della comunità scientifica della teoria della tettonica a placche.<br><a href="https://buff.ly/44EdOoq">https://buff.ly/44EdOoq</a></div>]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/105667511/a9093b6dd52b641e7015a867f5808fc6/IMG_6889.jpg" />
         <pubDate>2023-07-31 20:31:08 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/2653744239</guid>
      </item>
      <item>
         <title>Rift Valley in Islanda</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/2810110302</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.instagram.com/p/Cz1ilIuSv2u/?igshid=NzBmMjdhZWRiYQ==" />
         <pubDate>2023-12-01 05:58:27 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/2810110302</guid>
      </item>
      <item>
         <title>Tettonica Taiwan </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/2944092476</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/105667511/3f214b3595b63fc42d83b135d0b72090/IMG_1842.jpg" />
         <pubDate>2024-04-05 04:13:19 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/2944092476</guid>
      </item>
      <item>
         <title>Movimento delle placche</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/2972120424</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.instagram.com/reel/C6GhlL0rWRh/?igsh=MXJjOHBzZHMycjY4cA==" />
         <pubDate>2024-04-27 18:05:20 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/2972120424</guid>
      </item>
      <item>
         <title>Subduzione e terremoti </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/3007394715</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.instagram.com/reel/C5SH112MTLR/?igsh=MW14bW00ZG80ZGtlcg==" />
         <pubDate>2024-05-26 06:57:59 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/3007394715</guid>
      </item>
      <item>
         <title>Movimento delle placche</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/3022198301</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.instagram.com/reel/C7UnVP5NKde/?igsh=NWNnODB4MGNyaXdz" />
         <pubDate>2024-06-09 11:50:31 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/3022198301</guid>
      </item>
      <item>
         <title>Movimento delle placche</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/3022198372</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://www.instagram.com/reel/C7UnVP5NKde/?igsh=NWNnODB4MGNyaXdz" />
         <pubDate>2024-06-09 11:50:47 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/3022198372</guid>
      </item>
      <item>
         <title>Placca Nazca geotettonica </title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/3031099175</link>
         <description><![CDATA[]]></description>
         <enclosure url="https://padlet-uploads.storage.googleapis.com/105667511/1714efe25b3a500563dff5cd46d25ce6/IMG_2663.jpg" />
         <pubDate>2024-06-18 11:15:22 UTC</pubDate>
         <guid>https://padlet.com/profsandrocantoni/tettonica/wish/3031099175</guid>
      </item>
      <item>
         <title>Mari e oceani</title>
         <author>profsandrocantoni</author>
         <link>https://padlet.com/profsandrocantoni/tettonica/wish/3041008154</link>
         <description><![CDATA[<p>Il Mar Tirreno</p>]]></description>
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