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earth science SOL3

characteristics of a mineral naturally occuring, inorganic, solid, definite chemical composition and structure, non renewable rescources
what is the most abundant mineral group silicates
what is an ore material that is useful and profitable
what are quartz the major mineral of glass and sand
igneous rocks form from..? the cooling and crysallization of molten rock
intrusive igneous rocks the slow cooling if magma inside the eart. coarse-grained texture. GRANITE
extrusive igneous rocks quick cooling of lava outside the earth. fine-grained texture. may look glassy or have holes present. PUMICE, OBSIDIAN, BASALT
how are metamorphic rocks formed from heat and pressure on existing rocks
contact metamorphism small area in contact with an igneous intrusion. bakes rock and changes it
regional metamorphism large area changed due to heat and pressure. usually with mountains
foliated texture bands or layers of minerals. SHIST, SLATE, GNEISS
nonfoliated texture nolayers. rocks have made a complete atomic change. MARBLE, QUARTZITE
how are sedimentary rocks formed form rock fragments or organic matter. build up in layers called strata and fossils are found in them
clastic rocks made of other rock fragments
conglomerate round pebbles, sandstone-sand, shale. amde of compact clay
chemi9cal rocks formed from precipitation or evaporation of liquids
mechanical weathering broken down into pieces without a chemical change
chemical weathering chnged into something chemically diffrent. (oxidation)
erosion the breakdown and transport of earth materials by wind, water, gravity, glaciers. greatest agent of erosian is water
deposition the dropping of earth materials after energy of motion of agent of erosion decreases to the point where it cannot carry materials any longer
which rock is formed both chemical and organically limestone
what are the 3 major rock resources of Virginia limestone, coal and titanium
how is soil formed from the weathering of rocks and from organic activity
what does soil consist of form loose fragments of rock and clay derived from weathered rock mixed with organic material
permeabillity the ability of a material to transmit water
impermeable water does not pass through this material
what is considered the zone of aeration soil
aquifer layer of rock that stores and transports water freely
what is the inner core it is solif and mafe of iron and nickel
what is the mantle the largest layer and is plastic like
what is continental crust made of silicon and oxygen
oceanic crust made of iron and magnesium
where is the youngest area of the ocean floor found at mid-ocean ridges
what is the lithosphere the crust and the upper mantle
Created by: mariarangoo