Sedimentary Principals and Fossils by Santiago Garcia https://padlet.com/305943/dlz60hvq5y60 Made with magic en-us 2018-01-23 17:36:26 UTC 2018-01-23 17:58:45 UTC hello@padlet.com Principle of uniformitarianism 305943 https://padlet.com/305943/dlz60hvq5y60/wish/223903877 the fundamental principle or doctrine that geologic processes and natural laws now operating to modify the Earth's crust have acted in the same regular manner and with essentially the same intensity throughout geologic time, and that past ...]]> 2018-01-23 17:37:21 UTC https://padlet.com/305943/dlz60hvq5y60/wish/223903877 Principle of superposition 305943 https://padlet.com/305943/dlz60hvq5y60/wish/223910746  that in a series of stratified sedimentary rocks the lowest stratum is the oldest]]> 2018-01-23 17:48:31 UTC https://padlet.com/305943/dlz60hvq5y60/wish/223910746 Principle of original horizontality 305943 https://padlet.com/305943/dlz60hvq5y60/wish/223911129 states that layers of sediment are originally deposited horizontally under the action of gravity ]]> 2018-01-23 17:49:14 UTC https://padlet.com/305943/dlz60hvq5y60/wish/223911129 Principle of original lateral continuity 305943 https://padlet.com/305943/dlz60hvq5y60/wish/223911674 states that layers of sediment initially extend laterally in all directions]]> 2018-01-23 17:50:16 UTC https://padlet.com/305943/dlz60hvq5y60/wish/223911674 principle of cross-cutting relationships 305943 https://padlet.com/305943/dlz60hvq5y60/wish/223912107 geology that states that the geologic feature which cutsanother is the younger of the two features. It is a relative dating technique in geology.]]> 2018-01-23 17:51:04 UTC https://padlet.com/305943/dlz60hvq5y60/wish/223912107 Principle of inclusions 305943 https://padlet.com/305943/dlz60hvq5y60/wish/223912940 which states that, with sedimentary rocks, if inclusions (or clasts) are found in a formation, then the inclusions must be older than the formation that contains them.]]> 2018-01-23 17:52:42 UTC https://padlet.com/305943/dlz60hvq5y60/wish/223912940 Mold and Cast fossils 305943 https://padlet.com/305943/dlz60hvq5y60/wish/223913488  Most fossils do not contain actual body parts but are impressions, molds or casts of the original organism]]> 2018-01-23 17:53:38 UTC https://padlet.com/305943/dlz60hvq5y60/wish/223913488 Petrification Fossils 305943 https://padlet.com/305943/dlz60hvq5y60/wish/223914470  is the process by which organic material becomes a fossil through the replacement of the original material and the filling of the original pore spaces with minerals.]]> 2018-01-23 17:54:54 UTC https://padlet.com/305943/dlz60hvq5y60/wish/223914470 Footprints and Trackways Fossils 305943 https://padlet.com/305943/dlz60hvq5y60/wish/223914925 A fossil trackway is a type of trace fossil, a trackway made by an organism. ... Marine organisms also made many ancient trackways (such as the trails of trilobites and eurypterids like Hibbertopterus). Some basic fossil trackway types: footprints]]> 2018-01-23 17:55:44 UTC https://padlet.com/305943/dlz60hvq5y60/wish/223914925 Coprolites Fossils 305943 https://padlet.com/305943/dlz60hvq5y60/wish/223915561  Coprolites are classified as trace fossils as opposed to body fossils, as they give evidence for the animal's behaviour]]> 2018-01-23 17:56:54 UTC https://padlet.com/305943/dlz60hvq5y60/wish/223915561 Whole Body or True Form Fossils 305943 https://padlet.com/305943/dlz60hvq5y60/wish/223916236 A true form fossil is a fossil of the whole/entire body of the organism, like an actual animal or animal part.

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