https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn Geruzak en-us 2020-11-10 08:25:20 UTC 2025-11-23 18:50:39 UTC hello@padlet.com selamawit_martin https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915462878 2020-11-12 07:42:25 UTC https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915462878 selamawit_martin https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915478044 2020-11-12 07:48:18 UTC https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915478044 selamawit_martin https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915478814 2020-11-12 07:48:36 UTC https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915478814 selamawit_martin https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915493103
20mm baino handiagoak diren kristalekin. Gehienetan dauden mineralak granitoaren berdinak dira.]]> 2020-11-12 07:54:13 UTC https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915493103 selamawit_martin https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915493780 2020-11-12 07:54:29 UTC https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915493780 selamawit_martin https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915494711 2020-11-12 07:54:51 UTC https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915494711 selamawit_martin https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915502564 Riolita, trakita edo fonolita eratzen duten magmek sor dezakete, magma felsikoek beraz. Kolore argia izaten du, zuria, horixka, grisa edo gorrixka. Pumita beira bat da, ez baitu kristalik.]]> 2020-11-12 07:58:03 UTC https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915502564 selamawit_martin https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915505162 Pumitaren porositatea %90a da. 
Poroak normalean hodi formakoak izaten dira, sumendiko tximiniatan luzatu egiten baita, baina batzutan burbuila esferikoak ere izaten ditu, erupzio garaian lurrin presio handiak jasaten dituenean.]]> 2020-11-12 07:59:05 UTC https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915505162 selamawit_martin https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915509309
Pumita material piroklastikoa airera jaurtitzen denean sortzen da, gas burbuila ugari izaten dituelako eta azkar solidifikatzen da. Pumita basaltikoa denean eskoria izena jasotzen du, baina hau dentsoagoa da.

]]> 2020-11-12 08:00:52 UTC https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915509309 selamawit_martin https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915511659
Krakatoaren eztandaren ostean Ozeano Barean 25 metroko luzera zuten pumitak igerian egon ziren bi urtez eta batzuetan palmondoak eta belarrak jaio ziren. Pumitaren dentsitatea aldakorra da burbuilen artean dagoen materialaren arabera, baina gehienetan uretan flotatzen du. 1979, 1984 eta 2006an Tongan egon ziren ur-azpiko leherketetan pumitazko zati handiak sortu ziren, batzuk 30 kmko zabalera zutenak eta Fiji inguruan igerian egon zirenak.

]]> 2020-11-12 08:01:57 UTC https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915511659 selamawit_martin https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915525473 2020-11-12 08:07:44 UTC https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915525473 selamawit_martin https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915529330 2020-11-12 08:09:08 UTC https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915529330 selamawit_martin https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915533139 2020-11-12 08:10:34 UTC https://padlet.com/selamawit_martin/8uecn8vyc66ebmpn/wish/915533139