GEOL 1003 Quiz: GEOL 1003 Test 1 Outline
Document Summary
**important minerals: quartz , calcite , dolomite , gypsum , pyrite , hematite , an element consists of a unique kind of atom: Isotopes can be radioactive (nuclei decay at a constant average rate to from other isotopes, daughter isotopes: average rate of decay= calculated by counting the particles that this decay produces over a given amount of time, the total number of radioactive atoms in earth is so big that their decay releases enough heat to warm the planet significantly. Halides: positive ions attached to negative ions of elements such as chlorine (cl) and fluorine (f, soft, light colored, water soluble, most rock forming varieties are sedimentary, from large sedentary deposits, including halite (rock salt) Oxides: metallic ions combined with oxygen, soft to hard, mostly sedimentary, but many varieties are present in igneous and metamorphic rocks, some are major ore minerals (ex. magnetite, hematite)
