https://padlet.com/3044461/ci5jwc9zfonk en-us 2018-01-23 16:32:46 UTC 2024-07-01 17:04:16 UTC hello@padlet.com 3044461 https://padlet.com/3044461/ci5jwc9zfonk/wish/223865492 Uniformitarianism is defined in the authoritative Glossary of Geology as "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 16:33:33 UTC https://padlet.com/3044461/ci5jwc9zfonk/wish/223865492 3044461 https://padlet.com/3044461/ci5jwc9zfonk/wish/223866226 the principle that in a series of stratified sedimentary rocks the lowest stratum is the oldest.]]> 2018-01-23 16:34:38 UTC https://padlet.com/3044461/ci5jwc9zfonk/wish/223866226 3044461 https://padlet.com/3044461/ci5jwc9zfonk/wish/223866680 The Principle of Original Horizontality states that layers of sediment are originally deposited horizontally under the action of gravity.]]> 2018-01-23 16:35:16 UTC https://padlet.com/3044461/ci5jwc9zfonk/wish/223866680 3044461 https://padlet.com/3044461/ci5jwc9zfonk/wish/223867529 The principle of lateral continuity states that layers of sediment initially extend laterally in all directions; in other words, they are laterally continuous.]]> 2018-01-23 16:36:29 UTC https://padlet.com/3044461/ci5jwc9zfonk/wish/223867529 3044461 https://padlet.com/3044461/ci5jwc9zfonk/wish/223868156 Cross-cutting relationships is a principle of geology that states that the geologic feature which cutsanother is the younger of the two features.]]> 2018-01-23 16:37:20 UTC https://padlet.com/3044461/ci5jwc9zfonk/wish/223868156 3044461 https://padlet.com/3044461/ci5jwc9zfonk/wish/223868654 This is a restatement of Charles Lyell's original principle of inclusions and components from his 1830 to 1833 multi-volume Principles of Geology, 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 16:38:05 UTC https://padlet.com/3044461/ci5jwc9zfonk/wish/223868654 3044461 https://padlet.com/3044461/ci5jwc9zfonk/wish/223869517 Organisms buried in sediment may decay or dissolve away leaving a cavity or mold.]]> 2018-01-23 16:39:21 UTC https://padlet.com/3044461/ci5jwc9zfonk/wish/223869517 3044461 https://padlet.com/3044461/ci5jwc9zfonk/wish/223871045 In geology, petrifaction or petrification 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 16:41:29 UTC https://padlet.com/3044461/ci5jwc9zfonk/wish/223871045 3044461 https://padlet.com/3044461/ci5jwc9zfonk/wish/223872204 A fossil trackway is a type of trace fossil, a trackway made by an organism.]]> 2018-01-23 16:43:20 UTC https://padlet.com/3044461/ci5jwc9zfonk/wish/223872204 3044461 https://padlet.com/3044461/ci5jwc9zfonk/wish/223872957 Coprolites are classified as trace fossils as opposed to body fossils, as they give evidence for the animal's behaviour in this case, diet rather than morphology]]> 2018-01-23 16:44:37 UTC https://padlet.com/3044461/ci5jwc9zfonk/wish/223872957 3044461 https://padlet.com/3044461/ci5jwc9zfonk/wish/223873773 A true form fossil is a fossil of the whole entire body of the organism like an actual animal or animal part.]]> 2018-01-23 16:45:56 UTC https://padlet.com/3044461/ci5jwc9zfonk/wish/223873773