Rocks and Erosion by Austin Cross

austin8260 — 2015-08-14 18:28:02 UTC

Igneous rock

austin8260 — 2015-11-23 18:03:18 UTC

Igneous rock (derived from the Latin word ignis meaning fire) is one of the three mainrock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava.

Sedimentary rock

austin8260 — 2015-11-23 18:05:14 UTC

Sedimentary rocks are types of rock that are formed by the deposition of material at the Earth's surface and within bodies of water. Sedimentation is the collective name for processes that cause mineral and/or organic particles (detritus) to settle and accumulate or minerals to precipitate from a solution.

igneous rock

austin8260 — 2015-11-23 18:06:29 UTC

Igneous rock is formed through the cooling and solidification of magma or lava. Igneous rock may form with or without crystallization, either below the surface as intrusive (plutonic)rocks or on the surface as extrusive (volcanic)rocks.

Metamorphic rock

austin8260 — 2015-11-23 18:09:10 UTC

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. Examples of these rocktypes include marble, slate, gneiss, schist.

Water Erosion

austin8260 — 2015-11-23 18:12:13 UTC

erosion definition. A type of weathering in which surface soil and rock are worn away through the action of glaciers, water, and wind.

Wind Erosion

austin8260 — 2015-11-23 18:15:07 UTC

Wind erosion is a serious environmental problem attracting the attention of many across the globe. It is a common phenomenon occurring mostly in flat, bare areas; dry, sandy soils; or anywhere the soil is loose, dry, and finely granulated.

Ice Erosion

austin8260 — 2015-11-23 18:17:26 UTC

Ice erosion is the process of large chunks of ice, known as glaciers, eroding an area over a long period of time with the help of gravity.

Sediments

austin8260 — 2015-11-23 18:19:56 UTC

Sediments are fragmented materials that originate from weathering and erosion of rocks or unconsolidated deposits and are transported by, suspended in, or deposited by water.

Glacier

austin8260 — 2015-11-23 18:22:17 UTC

A glacier (US /ˈɡleɪʃər/ or UK /ˈɡlæsiə/) is a persistent body of dense ice that is constantly moving under its own weight; it forms where the accumulation of snow exceeds its ablation (melting and sublimation) over many years, often centuries.

Minerals

austin8260 — 2015-11-23 18:23:33 UTC

A mineral is a naturally occurring substance, representable by a chemical formula, that is usually solid and inorganic, and has a crystal structure. It is different from a rock, which can be an aggregate ofminerals or non-minerals and does not have a specific chemical composition.

earth's core

austin8260 — 2015-12-03 17:58:36 UTC

The outer core of the Earth is a liquid layer about 2,300 km (1,400 mi) thick and composed of iron and nickel that lies above Earth's solid innercore and below its mantle. Its outer boundary lies 2,890 km (1,800 mi) beneath Earth's surface.

inner core

austin8260 — 2015-12-03 17:59:21 UTC

The Earth's inner core is the Earth's inner most part and according to seismological studies, it is primarily a solid ball with a radius of about 1220 kilometers, or 760 miles (about 70% of the Moon's radius).

outer core

austin8260 — 2015-12-03 18:01:54 UTC

The outer core of the Earth is a liquid layer about 2,300 km (1,400 mi) thick and composed of iron and nickel that lies above Earth's solid innercore and below its mantle. Its outer boundary lies 2,890 km (1,800 mi) beneath Earth's surface.

mantle

austin8260 — 2015-12-03 18:03:10 UTC

mantle definition. The region of the interior of the Earth between the core (on its inner surface) and the crust (on its outer). Note: The mantle is more than two thousand miles thick and accounts for more than three-quarters of the volume of the Earth.

crust

austin8260 — 2015-12-03 18:05:15 UTC

In geology, the crust is the outermost solid shell of a rocky planet or natural satellite, which is chemically distinct from the underlying mantle.

lithosphere

austin8260 — 2015-12-03 18:06:30 UTC

the rigid outer part of the earth, consisting of the crust and upper mantle.

asthenosphere

austin8260 — 2015-12-03 18:07:57 UTC

The asthenosphere (from Greek ἀσθενής asthenḗs 'weak' + "sphere") is the highly viscous, mechanically weak and ductilely deforming region of the upper mantle of the Earth. It lies below the lithosphere, at depths between approximately 80 and 200 km (50 and 120 miles) below the surface.