Geology Flashcards
Igneous
Rocks that form through the cooling of lava and magma
Magma
Hot fluid that is not able to be found below the Earths Surface
Lava
Magma that is able to be found above the Earths surface
Extrusive
Igneous rocks that form above the Earths surface
Intrusive
Igneous rocks that form below the Earths surface
Mineral
A natural occurring substance of rock
Lithosphere
The outer layer of the Earth
Asthenosphere
The upper layer of the Earths mantle
Crystal
A piece of a homogeneous solid substance
Sedimentary Rocks
A rock that has been formed through the deposition and solidification of sediment
Erosian
The process of eroding or being eroded by wind or water
Floodpains
Level land that may be submerged by floodwaters
Glaciers
A slowly moving mass or river of ice
Moraines
A mass of rocks and sediment carried down and deposited by a glacier
Sandstone
Sedimentary rock consisting of sand or quartz grains cemented together
Mudstone
A dark sedimentary rock formed from consolidated mud
Shale
Soft finely stratified sedimentary rock that formed from consolidated mud or clay and can be split easily into fragile plates.
Siltstone
Fine-grained sedimentary rock consisting of consolidated silt
Conglomerate
A coarse-grained sedimentary rock composed of rounded fragments embedded in a matrix of cementing material such as silica
Limestone
A hard sedimentary rock, composed mainly of calcium carbonate or dolomite, used as building material and in the making of cement
Coal
A combustible black or dark brown rock consisting chiefly of carbonized plant matter, found mainly in underground seams and used as fuel
Rock Salt
Is a type of salt, the mineral (natural) form of sodium chloride
Metamorphic rocks
A metamorphic rock is a result of a transformation of a pre-existing rock. The original rock is subjected to very high heat and pressure, which cause obvious physical and/or chemical changes.
Metamorphism
Alteration of the composition or structure of a rock by heat, or pressure