https://padlet.com/304828/c7hmg49sm1d9 Made with the best of intentions en-us 2018-01-16 20:15:48 UTC 2024-10-29 14:33:34 UTC hello@padlet.com 304828 https://padlet.com/304828/c7hmg49sm1d9/wish/221875114 The geologic time scale (GTS) is a system of chronological dating that relates geological strata (stratigraphy) to time.]]> 2018-01-16 20:17:27 UTC https://padlet.com/304828/c7hmg49sm1d9/wish/221875114 304828 https://padlet.com/304828/c7hmg49sm1d9/wish/221875914 In geology and related fields, a stratum (plural: strata) is a layer of sedimentary rock or soil]]> 2018-01-16 20:19:45 UTC https://padlet.com/304828/c7hmg49sm1d9/wish/221875914 304828 https://padlet.com/304828/c7hmg49sm1d9/wish/221876566 The time taken for the radioactivity of a specified isotope to fall to half its original value.]]> 2018-01-16 20:21:40 UTC https://padlet.com/304828/c7hmg49sm1d9/wish/221876566 304828 https://padlet.com/304828/c7hmg49sm1d9/wish/221878016 The remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock.]]> 2018-01-16 20:26:02 UTC https://padlet.com/304828/c7hmg49sm1d9/wish/221878016 304828 https://padlet.com/304828/c7hmg49sm1d9/wish/221878964 The history of Earth concerns the development of planet Earth from its formation to the present day.]]> 2018-01-16 20:28:43 UTC https://padlet.com/304828/c7hmg49sm1d9/wish/221878964 304828 https://padlet.com/304828/c7hmg49sm1d9/wish/221880442 An idealized cycle of processes undergone by rocks in the earth's crust, involving igneous intrusion.]]> 2018-01-16 20:33:29 UTC https://padlet.com/304828/c7hmg49sm1d9/wish/221880442 304828 https://padlet.com/304828/c7hmg49sm1d9/wish/221880986 a method of dating geological or archeological specimens by determining the relative proportions of particular radioactive isotopes present in a sample.]]> 2018-01-16 20:35:12 UTC https://padlet.com/304828/c7hmg49sm1d9/wish/221880986 304828 https://padlet.com/304828/c7hmg49sm1d9/wish/221881821 another term for carbon dating.]]> 2018-01-16 20:37:56 UTC https://padlet.com/304828/c7hmg49sm1d9/wish/221881821 304828 https://padlet.com/304828/c7hmg49sm1d9/wish/221882413 The spontaneous transformation of an unstable atomic nucleus into a lighter one]]> 2018-01-16 20:39:43 UTC https://padlet.com/304828/c7hmg49sm1d9/wish/221882413 304828 https://padlet.com/304828/c7hmg49sm1d9/wish/221883122 The age of the Earth is approximately 4.54 ± 0.05 billion years (4.54 × 10⁹ years ± 1%).]]> 2018-01-16 20:41:56 UTC https://padlet.com/304828/c7hmg49sm1d9/wish/221883122