Rocks and Minerals pt.2 Flashcards
chemical rocks
when minerals prcipitate out of a solution in ground + stick together
strata
sedimentary rock layers
rock
solid mixture of mineral crystals
how to make coal
peat,lignite,bitumious,anthrocite
foliated
minerals run parallel in rock, looks like layers or pages of a book
sediments
fragments of weathered rocks
rock cycle
crystallization
weathering,erosion,deposition
lithification
metamorephism
melting
what are the three types of rocks and some characteristics
igneous~forms from cooling magma
sedimentary~formed from accumalation or weathered material
metamorphic~when igneous, sedimentary, or metamorphic rockd undergo changes from temperature, pressure, or chemical reactions
W-
E-
D-
broken
transported
left/settle
intrusive igneous rock
igneous rock made from cooled underground magma, they make larger crystals
erosion
process that transports sediments
soil
mixture of small bits of crushed rocks, plus organic matter
clastic rocks
formed when bits and pieces of weathered rocks hold together
what have rocks been used for in the past
obsidian~arrowheads and knives
flint~sparks
nonfoliated
minerals are randomly arranged
lithification
process that converts loose sediments into solid rock
lava
liquid magma that reaches surface
deposited
when sediments are dumped at new locations
extrusive igneous rock
igneous rocks that form on earths surface
coal
made from ancient plant remains
weathered rocks
worn down by wind, water, ice, chemical reactions or organisms
