earth science Flashcards
what is a rock made of
mixtures of minerals
how does igneous rock from
magma cooling
what is marbles parent
limestone
what is a metamorphoic rock
when sedimentary rock compact together/heat and pressure
waht are sedimentary rocks
sediments that are pushed together
can igneous rock form above the surface
yes
how do igneous rocks turn into sedimentary
erosion and depostion
how are fine and course grained textures formed
forms from magma or lava cooling quickly/ course is from it cooling slowly
what are the three compositons of igneous rocks
granitic,basaltic,andesitic
what is deposition
depostion is the settling of sediments in layers after it was moved during erosion
what is wheatering
the process of rocks when they break into smaller pievces
what is erosion
rocks broken down by wind or water and carried somewhere
what is cementation
when water soaks through soil or rock
what is a clastic sedimentary rock
made from broken pieces of other rocks and it compacted and cemented together
what are chemichal rocks
chemical rocks form from water precipitation or evaporation
what are biochemical sedimentary rocks
they form from the body of onnce living things
how do coral reefs form
from little dead animals
what is the difference between contact and regional metamorphism
contact metamorphism is when magma forces its way into the rock. regional metamorphism is when tectonic plates collide and form mountains. covers a wide area
what are the three agents of metamorphism
heat fluid pressure
what are foliated rocks
when they are flattened and line up on parallel bands
what are nonfoliated rocks
rocks with no bands
slate parent
shale
gneiss parent
granite
quartzite parent
sandstone
what are the two types of pressure, where are they directed at
confinning and directed. confining pressure points equally in all directions, directed is toward one spot
what is the rock cycle order
cooling and crystallization from magma=igneous rock erosion and deposition=sediment cementation and compaction=sedimentary rock heat and pressure=metamorphic rock melting to magma
where do sea anemones live
in the holes of coral
what minerals make rocks green
hornblen,serpentine
what does metamorphic mean
meta=form mophic=change
what are inttrusive rocks
cool slowly underground with bog crystals
what are extrusive rocks
when lava cools on earths surface. cools quickly which causes no or not very many minerals.
what are the three main components of texture
coarse grained, glassy texture, and porphyrite texture
