https://padlet.com/3049411/y3o80x2za7ae Steven Villar en-us 2018-01-23 17:30:27 UTC 2023-02-15 23:47:20 UTC hello@padlet.com 3049411 https://padlet.com/3049411/y3o80x2za7ae/wish/223900849 The geologic time scale (GTS) is a system of chronological dating that relates geological strata (stratigraphy) 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 17:32:27 UTC https://padlet.com/3049411/y3o80x2za7ae/wish/223900849 3049411 https://padlet.com/3049411/y3o80x2za7ae/wish/223904579 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 17:38:16 UTC https://padlet.com/3049411/y3o80x2za7ae/wish/223904579 3049411 https://padlet.com/3049411/y3o80x2za7ae/wish/223905485 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 17:39:53 UTC https://padlet.com/3049411/y3o80x2za7ae/wish/223905485 3049411 https://padlet.com/3049411/y3o80x2za7ae/wish/223906425 the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.]]> 2018-01-23 17:41:20 UTC https://padlet.com/3049411/y3o80x2za7ae/wish/223906425 3049411 https://padlet.com/3049411/y3o80x2za7ae/wish/223907086 the time taken for the radioactivity of a specified isotope to fall to half its original value]]> 2018-01-23 17:42:26 UTC https://padlet.com/3049411/y3o80x2za7ae/wish/223907086 3049411 https://padlet.com/3049411/y3o80x2za7ae/wish/223907676 a method of dating geological or archeological specimens by determining the relative proportions of particular radioactive isotopes present in a sample.]]> 2018-01-23 17:43:31 UTC https://padlet.com/3049411/y3o80x2za7ae/wish/223907676 3049411 https://padlet.com/3049411/y3o80x2za7ae/wish/223908507 another term for carbon dating]]> 2018-01-23 17:44:57 UTC https://padlet.com/3049411/y3o80x2za7ae/wish/223908507 3049411 https://padlet.com/3049411/y3o80x2za7ae/wish/223909341 any method of determining the age of earth materials or objects of organic origin based on measurement of either short-lived radioactive elements or the amount of a long-lived radioactive element plus its decay product. Expand. Also called radioactive dating. Origin of radiometric dating.]]> 2018-01-23 17:46:30 UTC https://padlet.com/3049411/y3o80x2za7ae/wish/223909341