Sedimentary Principles and Fossils by https://padlet.com/3096881/3qgn2o0urtfi en-us 2018-01-23 20:10:55 UTC 2025-10-12 19:41:35 UTC hello@padlet.com Principle of uniformitarianism 3096881 https://padlet.com/3096881/3qgn2o0urtfi/wish/223996545 -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]]> 2018-01-23 20:12:43 UTC https://padlet.com/3096881/3qgn2o0urtfi/wish/223996545 Principle of superposition 3096881 https://padlet.com/3096881/3qgn2o0urtfi/wish/223997749 -for all linear systems, the net response caused by two or more stimuli is the sum of the responses that would have been caused by each stimulus individually.]]> 2018-01-23 20:14:50 UTC https://padlet.com/3096881/3qgn2o0urtfi/wish/223997749 Principle of original horizontality 3096881 https://padlet.com/3096881/3qgn2o0urtfi/wish/223998653 -layers of sediment are originally deposited horizontally under the action of gravity]]> 2018-01-23 20:16:40 UTC https://padlet.com/3096881/3qgn2o0urtfi/wish/223998653 Principle of original lateral continuity 3096881 https://padlet.com/3096881/3qgn2o0urtfi/wish/223999915 -layers of sediment initially extend laterally in all directions]]> 2018-01-23 20:19:24 UTC https://padlet.com/3096881/3qgn2o0urtfi/wish/223999915 principle of cross-cutting relationships 3096881 https://padlet.com/3096881/3qgn2o0urtfi/wish/224000448 -a principle of geology that states that the geologic feature which cutsanother is the younger of the two features]]> 2018-01-23 20:20:34 UTC https://padlet.com/3096881/3qgn2o0urtfi/wish/224000448 Principle of inclusions 3096881 https://padlet.com/3096881/3qgn2o0urtfi/wish/224001174 -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 20:22:13 UTC https://padlet.com/3096881/3qgn2o0urtfi/wish/224001174 Mold and Cast fossils 3096881 https://padlet.com/3096881/3qgn2o0urtfi/wish/224001641 - bones deteriorate due to chemical reactions; minerals gradually enter into the cavity, resulting in a cast, also called a mold fossil, which is in the general form of the original organism]]> 2018-01-23 20:23:10 UTC https://padlet.com/3096881/3qgn2o0urtfi/wish/224001641 Petrification Fossils 3096881 https://padlet.com/3096881/3qgn2o0urtfi/wish/224002422 -the result of a tree or tree-like plants having completely transitioned to stone by the process of permineralization]]> 2018-01-23 20:24:56 UTC https://padlet.com/3096881/3qgn2o0urtfi/wish/224002422 Footprints and Trackways Fossils 3096881 https://padlet.com/3096881/3qgn2o0urtfi/wish/224003247 -a trackway made by an organism]]> 2018-01-23 20:26:39 UTC https://padlet.com/3096881/3qgn2o0urtfi/wish/224003247 Coprolites Fossils 3096881 https://padlet.com/3096881/3qgn2o0urtfi/wish/224003804 -classified as trace fossils as opposed to body fossils, as they give evidence for the animal's behaviour]]> 2018-01-23 20:28:02 UTC https://padlet.com/3096881/3qgn2o0urtfi/wish/224003804 Whole Body or True Form Fossils 3096881 https://padlet.com/3096881/3qgn2o0urtfi/wish/224004555 -the animals soft tissues or hard parts did not decay over the years]]> 2018-01-23 20:29:54 UTC https://padlet.com/3096881/3qgn2o0urtfi/wish/224004555