https://padlet.com/3045021/5c8c1li3e8op en-us 2018-01-23 17:30:53 UTC 2024-10-18 16:02:04 UTC hello@padlet.com 3045021 https://padlet.com/3045021/5c8c1li3e8op/wish/223901642 The geologic time scale (GTS) is a system of chronological dating that relates geological strata (stratigraphy) to time.]]> 2018-01-23 17:33:41 UTC https://padlet.com/3045021/5c8c1li3e8op/wish/223901642 3045021 https://padlet.com/3045021/5c8c1li3e8op/wish/223902085 In geology and related fields, a stratum (plural: strata) is a layer of sedimentary rock or soil, or igneous rock]]> 2018-01-23 17:34:25 UTC https://padlet.com/3045021/5c8c1li3e8op/wish/223902085 3045021 https://padlet.com/3045021/5c8c1li3e8op/wish/223905292 an idealized cycle of processes undergone by rocks in the earth's crust, involving igneous intrusion, uplift, erosion, transportation, deposition as sedimentary rock, metamorphism, remelting, and further igneous intrusion.]]> 2018-01-23 17:39:31 UTC https://padlet.com/3045021/5c8c1li3e8op/wish/223905292 3045021 https://padlet.com/3045021/5c8c1li3e8op/wish/223906076 the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.]]> 2018-01-23 17:40:49 UTC https://padlet.com/3045021/5c8c1li3e8op/wish/223906076 3045021 https://padlet.com/3045021/5c8c1li3e8op/wish/223906836 the time taken for the radioactivity of a specified isotope to fall to half its original value.]]> 2018-01-23 17:42:00 UTC https://padlet.com/3045021/5c8c1li3e8op/wish/223906836 3045021 https://padlet.com/3045021/5c8c1li3e8op/wish/223907620 a method of dating geological or archeological specimens by determining the relative proportions of particular radioactive isotopes present in a sample.]]> 2018-01-23 17:43:25 UTC https://padlet.com/3045021/5c8c1li3e8op/wish/223907620 3045021 https://padlet.com/3045021/5c8c1li3e8op/wish/223908273 another term for carbon dating.]]> 2018-01-23 17:44:33 UTC https://padlet.com/3045021/5c8c1li3e8op/wish/223908273 3045021 https://padlet.com/3045021/5c8c1li3e8op/wish/223908959 . Also called radioactive dating. Origin of radiometric dating.]]> 2018-01-23 17:45:51 UTC https://padlet.com/3045021/5c8c1li3e8op/wish/223908959