GEOL 1001 : Geology Final Questions 4
Document Summary
Geology final questions 4:50: physical geology: studies earth materials (minerals and rocks) and processes on and within the. Mineral: an inorganic, naturally occurring, crystalline solid with a narrowly defined chemical composition and characteristic physical properties. Cannot exist in nature with -4 charge, bonds two ways. Combines with + charged ions (mg2+ and fe2+) Ferromagnesian: dark color (b/c fe2+ or mg2+), more dense. Magma or lava cools and minerals and crystals grow (ferromag and nonferromag) Solutions of hot water find ways into rocks and crystallize there (quartz vein) Part of the lithosphere , continental crust, oceanic crust: there are two differ types of crust, composition. Crust: outermost layer, 0-100 km thick; 2 types: Thick (20-90 km) and less dense than oc. Divergent- divergent boundaries form when plates move away from one another. Most divergent boundaries occur along the crests of oceanic ridges. Convergent - convergent boundaries are places where two plates. There are three types of convergent boundaries. collide.
