Term
| Minerals meet these basic criteria: |
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Definition
Naturally occurring (not man made)
Crystalline Solid (atoms and molecules have regular structure)
Inorganic substance
Definite chemical composition
Distinctive physical properties |
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Term
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Definition
| Crystallization – growth of a solid from particles in a liquid or gas |
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Term
| HOW DO WE IDENTIFY A MINERAL? |
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Definition
Color
Streak
Luster
Crystalline Structure
Hardness
Cleavage |
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Term
| Color of mineral in its powdered form |
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Definition
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Term
| the way crystals in the mineral form |
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Definition
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Term
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Definition
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Term
igneous rocks
cooler temperatures |
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Definition
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Term
igneous rocks
faster crystallization means |
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Definition
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Term
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Definition
| crystals visable to the naked eye |
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Definition
| crytals to small for naked eye |
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Term
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Definition
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| composed of disaggregated igneous rocks |
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Definition
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Term
| transitional b/w sedimentary snd igneous (from volcanoes) |
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Definition
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Definition
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Term
| fragmented material created by volcano |
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Definition
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Term
| Rock formed from sediments or fragments of other older rocks |
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Definition
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Term
| process where loose sediment grains are converted into a rock |
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Definition
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Term
| hardening and welding of sediments by precipitation of mineral matter into spaces between sediments |
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Definition
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Term
sedimentary composition
minerals and rock fragments |
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Definition
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Term
sedimentary composition
crystals that precipitate from water |
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Definition
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Term
sedimentary composition
shells made of calcite by organisms (same as chemical, add organisms) |
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Definition
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Term
formed from physically weather sediments of other rocks, classified on basis on grain size
Ex: sandstone, breccia, shale |
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Definition
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Term
formed due to decomposition of organic remains under pressure and temperature
Ex: coal, lignite |
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Definition
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Term
| Evaporites: formed from evaporation of sea water |
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Definition
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Term
formed from carbonate by organic sources or by chemical leaching
Ex: limestone, dolomite |
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Definition
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Term
| Process of determining when something formed or happened in relation to something else |
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Definition
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Term
| Determining when something formed or happened in exact units of time such as days or years. |
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Definition
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Term
| The order in which rocks are placed or accumulated in beds one above another. |
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Definition
| principle of superposition |
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Term
| Assumption that sedimentary rocks were originally deposited horizontality |
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Definition
| principal of original horizontality |
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Term
| Rock formations which contain inclusions of another rock are younger than the inclusion. |
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Definition
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Term
| surfaces that represent gaps in the geologic record. |
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Definition
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Term
| Where sedimentary rock lies above and was deposited on metamorphic and igneous rock |
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Definition
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Term
| erosion or non deposition between parallel layers of sedimentary rocks |
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Definition
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Term
| Unconformity where horizontal parallel strata of sedimentary rock are deposited on tilted and eroded layers |
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Definition
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Term
| Age of rock = # of half lives that have occurred x length of half life for isotope |
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Definition
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