https://padlet.com/305125/cmeixq461a19 Made with a wink and a smile en-us 2018-01-23 16:26:02 UTC 2023-03-10 08:24:33 UTC hello@padlet.com 305125 https://padlet.com/305125/cmeixq461a19/wish/223863471 The geologic time scale is a system of chronological dating that relates geological strata to time. It is used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events that have occurred during Earth's history.]]> 2018-01-23 16:30:31 UTC https://padlet.com/305125/cmeixq461a19/wish/223863471 305125 https://padlet.com/305125/cmeixq461a19/wish/223865397 In geology and related fields, a stratum (plural: strata) is a layer of sedimentary rock or soil, or igneous rockthat were formed at the earth's surface, with internally consistent characteristics that distinguish it from other layers.

]]> 2018-01-23 16:33:26 UTC https://padlet.com/305125/cmeixq461a19/wish/223865397 305125 https://padlet.com/305125/cmeixq461a19/wish/223866239 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 16:34:39 UTC https://padlet.com/305125/cmeixq461a19/wish/223866239 305125 https://padlet.com/305125/cmeixq461a19/wish/223867339 the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.]]> 2018-01-23 16:36:14 UTC https://padlet.com/305125/cmeixq461a19/wish/223867339 305125 https://padlet.com/305125/cmeixq461a19/wish/223868303 the time taken for the radioactivity of a specified isotope to fall to half its original value.]]> 2018-01-23 16:37:34 UTC https://padlet.com/305125/cmeixq461a19/wish/223868303 305125 https://padlet.com/305125/cmeixq461a19/wish/223869225 a method of dating geological or archeological specimens by determining the relative proportions of particular radioactive isotopes present in a sample.]]> 2018-01-23 16:38:54 UTC https://padlet.com/305125/cmeixq461a19/wish/223869225 305125 https://padlet.com/305125/cmeixq461a19/wish/223872884 another term for carbon dating.]]> 2018-01-23 16:44:28 UTC https://padlet.com/305125/cmeixq461a19/wish/223872884 305125 https://padlet.com/305125/cmeixq461a19/wish/223874278 radioactive decay.The spontaneous transformation of an unstable atomic nucleus into a lighter one, in which radiation is released in the form of alpha particles, beta particles, gamma rays, and other particles.]]> 2018-01-23 16:46:46 UTC https://padlet.com/305125/cmeixq461a19/wish/223874278