Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
17 Cards in this Set
- Front
- Back
|
What are the two types of color for igneous rocks?
|
felsic- light colors
mafic- dark colors |
|
|
What are the three types of textures for igneous rocks? with a descrption
|
aphanitic- tiny crystals (glassy)
phaneritic- crystals are visible to the naked eye porphyritic- large crystals embedded in a small crystalline matrix |
|
|
What are the four things that classify a igneous rock?
|
origin
texture color compostition |
|
|
How are igneous rocks formed?
|
cooling of magma
if the rock is intrusive it will have larger crystal...if extrusive will have smaller cystals |
|
|
What is the rock cycle?
|
Igneous
Metamorphic sedimentary |
|
|
How is a metamorphic rock formed? and what classifys it?
|
formed by heat and pressure
enlargement of crystals and floitated or non foliated classify it |
|
|
What is foliation and non foliation
|
foliation- banded rock mineral are lined up in bands or layers due to the temp. change and density
non- foliation- lack of bands- usually one kind of mineral |
|
|
How is sedimentary rocks formed and what classifys it?
|
formed by weathering and erosion
formation and compoistion classify it |
|
|
What is clastic and non clastic?
|
clastic-rocks made up of fragments of rock or minerals
non-clastic rocks are then called crystalline |
|
|
What is bioclastic?
|
bioclastic- fragments of biological origin, plants, and animals
Cementation-minerals precipitate between grains of sediment compaction- squeezing air and water our of buried sediments |
|
|
what is sediment?
|
small, solid particles of material from rocks or organisms which are moved by water or wind.
|
|
|
what are minerals?
|
a naturally occuring, inorgainic solid that has a crystal structure and a definite chemcial compostion
|
|
|
what is weathering and what are the two types?
|
weathering is the chemical and physical processes that break down rock are earths surface
chemical- process that breaks dowm rock through chemical changes mechanical-process of breaking down rock is physically broken into smaller pieces. |
|
|
what are fossils? and what kind of rocks form them?
|
the preserved remains or traces of living things.
formed by sedimentary rocks mostly. |
|
|
metamorphic rocks
|
marble
quartize schist slate graphite phylite gneiss |
|
|
sedimentary rocks
|
shale
chert sandstone (wind and water) coquina coal conglomerate dolmite halite (salt) |
|
|
igneous rocks
|
hylite
pumice (density is greater) basalt gabbro obsidian grantie scorina |
