https://padlet.com/303995/rsuq737ow5n8 en-us 2018-01-26 18:24:25 UTC 2025-11-08 06:20:31 UTC hello@padlet.com 303995 https://padlet.com/303995/rsuq737ow5n8/wish/225179225 In geology and related fields, a stratum 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.]]> 2018-01-26 18:26:30 UTC https://padlet.com/303995/rsuq737ow5n8/wish/225179225 303995 https://padlet.com/303995/rsuq737ow5n8/wish/225179332 A metamorphic rock is a type of rock which has been changed by extreme heat and pressure.]]> 2018-01-26 18:26:45 UTC https://padlet.com/303995/rsuq737ow5n8/wish/225179332 303995 https://padlet.com/303995/rsuq737ow5n8/wish/225179450 Rock that has formed through the deposition and solidification of sediment, especially sediment transported by water]]> 2018-01-26 18:26:58 UTC https://padlet.com/303995/rsuq737ow5n8/wish/225179450 303995 https://padlet.com/303995/rsuq737ow5n8/wish/225179557 Igneous rock or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava.]]> 2018-01-26 18:27:14 UTC https://padlet.com/303995/rsuq737ow5n8/wish/225179557 303995 https://padlet.com/303995/rsuq737ow5n8/wish/225179650 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.]]> 2018-01-26 18:27:29 UTC https://padlet.com/303995/rsuq737ow5n8/wish/225179650