GEOL 1003 : GEOLOGY StuDY GUIDE
Document Summary
Earth system is both phsyicochemical (inorganic physicaland chemical processes that shape earth) and biological (life and related processes). Catasrophism- earth has been affected in the past b sudden, violent events. Actualism was established by james hutton and popularized by charles. Uniformitarianism- the present is key to the past and is functioning at the same rate. **remember not all events are duplicate or gradual or during human existence. Changes in earth system---different cycles and processes (evolution) episodic directional changes. Igneous- form from cooling of molten rock (felsic magma, mafic magma) Metamorphic- form from other rocks at high temperatures and pressures (greenstone belts) Sedimentary- form from loose sediments that settle through water or air (conglomerate/ breccia, shale, red beds, chert, banded iron formations, limestone, coal) To refine the relationship between taxonomic groups. the tree shows the genetic history of organism. Fossils- provide the direct evidences that inform us about ancient life. It shows how life has dramatically changed throughout time.
