https://padlet.com/310304/845edm7h6ins palet en-us 2018-01-23 17:34:22 UTC 2025-10-25 15:46:25 UTC hello@padlet.com 310304 https://padlet.com/310304/845edm7h6ins/wish/223902601 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 17:35:14 UTC https://padlet.com/310304/845edm7h6ins/wish/223902601 310304 https://padlet.com/310304/845edm7h6ins/wish/223903980 . (geology) the principle that in a series of stratified sedimentary rocks the lowest stratum is the oldest. 2. n. the displacement of any point due to the superpositionof wave systems is equal to the sum of the displacements of the individual waves at that point.]]> 2018-01-23 17:37:30 UTC https://padlet.com/310304/845edm7h6ins/wish/223903980 310304 https://padlet.com/310304/845edm7h6ins/wish/223905841 he 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 17:40:27 UTC https://padlet.com/310304/845edm7h6ins/wish/223905841 310304 https://padlet.com/310304/845edm7h6ins/wish/223906679 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 17:41:45 UTC https://padlet.com/310304/845edm7h6ins/wish/223906679 310304 https://padlet.com/310304/845edm7h6ins/wish/223908053 Cross-cutting relationships is a principle of 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 17:44:10 UTC https://padlet.com/310304/845edm7h6ins/wish/223908053 310304 https://padlet.com/310304/845edm7h6ins/wish/223908926 n combinatorics, the inclusion‒exclusion principle (also known as the sieveprinciple) is an equation relating the. sizes of two sets and their union. It states that if A and B are two (finite) sets, then.]]> 2018-01-23 17:45:46 UTC https://padlet.com/310304/845edm7h6ins/wish/223908926 310304 https://padlet.com/310304/845edm7h6ins/wish/223909793 Mold & Cast Fossils. ... Essentially, a mold fossilforms when the organic matter of the organism decomposes and leaves a cavity, or mold. Casts form when the cavity fills with sediment or minerals that harden. Occasionally, casts and molds contain the hard parts of organisms, such as shells or bones.]]> 2018-01-23 17:46:48 UTC https://padlet.com/310304/845edm7h6ins/wish/223909793 310304 https://padlet.com/310304/845edm7h6ins/wish/223910867 he word “petrified” means “turning into stone.” Petrified fossils form when minerals replace all or part of an organism. Water is full of dissolved minerals. It seeps through the layers of sediment to reach the dead organism. When the water evaporates, only the hardened minerals are left behind.]]> 2018-01-23 17:48:43 UTC https://padlet.com/310304/845edm7h6ins/wish/223910867 310304 https://padlet.com/310304/845edm7h6ins/wish/223911876 A fossil trackway is a type of trace fossil, a trackway made by an organism. ... Marine organisms also made many ancienttrackways (such as the trails of trilobites and eurypterids like Hibbertopterus). Some basic fossil trackway types: footprints. tail drags.]]> 2018-01-23 17:50:37 UTC https://padlet.com/310304/845edm7h6ins/wish/223911876 310304 https://padlet.com/310304/845edm7h6ins/wish/223918512 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 18:02:15 UTC https://padlet.com/310304/845edm7h6ins/wish/223918512 310304 https://padlet.com/310304/845edm7h6ins/wish/223918965 A true form fossil is a fossil of the whole/entire body of the organism, like an actual animal or animal part. How Are They Formed ? True form fossils are formed when the animals soft tissues or hard partsdid not decay over the years.]]> 2018-01-23 18:03:03 UTC https://padlet.com/310304/845edm7h6ins/wish/223918965