Earth sci lesson 3 Flashcards
Importance of Studying Rocks and Minerals
state
composed of rocks and minerals
terrestrial planet
outermost layer of our planet composed of the crust and the upper mantle
lithosphere
terrestrial planet, lithosphere
geosphere
naturally occurring aggregate or combi of minerals and mineraloids such as fossils and glass
rock
natural building blocks of Earth’s Lithosphere
rock
3 types of rock
igneous, sedimentary, metamorphic
latin “ignis” means
fire
are formed through cooling of magma or lava, 2/3 of earth’s crush
igneous rock
from solidified molten rock materials usually hard and crystalline
igneous rock
3 kinds of Solidification of Magma or Lava
below the surface: from a slow cooling magma
on the surface: from fast cooling lava
on the surface: from the consolidation of particles erupted by explosive volcanic activity
good crystallization (coarse-grained) may become plutonic or intrusive rocks
below the surface: from a slow cooling magma
examples of below the surface
granite, diorite, syenite
no visible crystals (fine grained)
may become volcanic or extrusive rocks
on the surface: from fast cooling lava
ex. of on the surface: from fast cooling lava
basalt, andesite
may become pyroclastic rocks
on the surface: from the consolidation of particles erupted by explosive volcanic activity
ex. of on the surface: from the consolidation of particles erupted by explosive volcanic activity
ignimbrite, scoria, pumice
deposition wherein there are combination of products of weathering and erosion and organic materials
sedimentary rocks
sedimentary processes include:
weathering of rocks, erosion, sediment transport and deposition
process by which these unconsolidated material become solidified
lithification
soil material that combines one or more ____ materials with traces of quartz, metal oxides and organic matter
clay
composed of skeletal fragments of marine organisms such as corals, foraminifera and mollusks
limestone
composed mainly of sand-sized mineral particles or rock fragments
sandstone
black sedimentary rock that can be burned for fuel and use to generate electricity
coal
ex. of sedimentary rocks
conglomerate, bauxite, coal, sandstone, limestone, clay
process that happens in metamorphic rocks
metamorphism