https://padlet.com/304503/git5uct8yap0 1-26-18 period 1 en-us 2018-01-26 16:25:18 UTC 2025-09-17 13:36:36 UTC hello@padlet.com 304503 https://padlet.com/304503/git5uct8yap0/wish/225125148 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.]]> 2018-01-26 16:26:37 UTC https://padlet.com/304503/git5uct8yap0/wish/225125148 304503 https://padlet.com/304503/git5uct8yap0/wish/225125636 A metamorphic rock is a type of rock which has been changed by extreme heat and pressure. Its name is from 'morph' (meaning form), and 'meta' (meaningchange). The original rock gets heated (temperatures greater than 150 to 200 °C) and pressured (1500 bars). This causes profound physical and/or chemical change.]]> 2018-01-26 16:27:40 UTC https://padlet.com/304503/git5uct8yap0/wish/225125636 304503 https://padlet.com/304503/git5uct8yap0/wish/225126096 Rock that has formed through the deposition and solidification of sediment, especially sediment transported by water (rivers, lakes, and oceans), ice ( glaciers ), and wind. Sedimentary rocks are often deposited in layers, and frequently contain fossils. Note : Limestone and shale are common sedimentary rocks.]]> 2018-01-26 16:28:43 UTC https://padlet.com/304503/git5uct8yap0/wish/225126096 304503 https://padlet.com/304503/git5uct8yap0/wish/225126656 Igneous rock (derived from the Latin word ignis meaning fire), 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 16:30:08 UTC https://padlet.com/304503/git5uct8yap0/wish/225126656 304503 https://padlet.com/304503/git5uct8yap0/wish/225127356 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 16:31:36 UTC https://padlet.com/304503/git5uct8yap0/wish/225127356