https://padlet.com/304017/bkl3vvilyk03 Made with a little mischief en-us 2018-01-23 17:33:48 UTC 2025-09-25 13:58:07 UTC hello@padlet.com 304017 https://padlet.com/304017/bkl3vvilyk03/wish/223902415 Image result for Principle of uniformitarianismslideplayer.com
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]]> 2018-01-23 17:34:55 UTC https://padlet.com/304017/bkl3vvilyk03/wish/223902415 304017 https://padlet.com/304017/bkl3vvilyk03/wish/223903629 In physics and systems theory, the superposition principle, also known as superposition property, states that, 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 17:36:54 UTC https://padlet.com/304017/bkl3vvilyk03/wish/223903629 304017 https://padlet.com/304017/bkl3vvilyk03/wish/223904660 The Principle of Original Horizontality states that layers of sediment are originally deposited horizontally under the action of gravity . It is a relative dating technique. The principle is important to the analysis of folded and tilted strata.]]> 2018-01-23 17:38:23 UTC https://padlet.com/304017/bkl3vvilyk03/wish/223904660 304017 https://padlet.com/304017/bkl3vvilyk03/wish/223905216 The principle of lateral continuity states that layers of sediment initially extend laterally in all directions; in other words, they are laterally continuous. As a result, rocks that are otherwise similar, but are now separated by a valley or other erosional feature, can be assumed to be originally continuous.]]> 2018-01-23 17:39:22 UTC https://padlet.com/304017/bkl3vvilyk03/wish/223905216 304017 https://padlet.com/304017/bkl3vvilyk03/wish/223905889 Cross-cutting relationships is a principle of geology that states that the geologic feature which cuts another is the younger of the two features. It is a relative dating technique in geology.]]> 2018-01-23 17:40:30 UTC https://padlet.com/304017/bkl3vvilyk03/wish/223905889 304017 https://padlet.com/304017/bkl3vvilyk03/wish/223906550 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 17:41:34 UTC https://padlet.com/304017/bkl3vvilyk03/wish/223906550 304017 https://padlet.com/304017/bkl3vvilyk03/wish/223907104 Organisms buried in sediment may decay or dissolve away leaving a cavity or mold. If the space is subsequently filled with sediment, an external cast can be made. Molds and casts are three dimensional and preserve the surface contours of the organism]]> 2018-01-23 17:42:28 UTC https://padlet.com/304017/bkl3vvilyk03/wish/223907104 304017 https://padlet.com/304017/bkl3vvilyk03/wish/223907661 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 17:43:29 UTC https://padlet.com/304017/bkl3vvilyk03/wish/223907661 304017 https://padlet.com/304017/bkl3vvilyk03/wish/223908343 A fossil trackway is a type of trace fossil, a trackway made by an organism. Many fossil trackways were made by dinosaurs, early tetrapods, and other quadrupeds and bipeds on land. Marine organisms also made many ancient trackways (such as the trails of trilobites and eurypterids like Hibbertopterus).]]> 2018-01-23 17:44:39 UTC https://padlet.com/304017/bkl3vvilyk03/wish/223908343 304017 https://padlet.com/304017/bkl3vvilyk03/wish/223908806 A coprolite is fossilized feces. 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. The name is derived from the Greek words κόπρος (kopros, meaning "dung") and λίθος (lithos, meaning "stone").]]> 2018-01-23 17:45:27 UTC https://padlet.com/304017/bkl3vvilyk03/wish/223908806 304017 https://padlet.com/304017/bkl3vvilyk03/wish/223909243 A true form fossil is a fossil of the whole/entire body of the organism, like an actual animal or animal part. True form fossils are formed when the animals soft tissues or hard parts did not decay over the years.]]> 2018-01-23 17:46:25 UTC https://padlet.com/304017/bkl3vvilyk03/wish/223909243