Shared Flashcard Set

Details

Vocabulary Ch 15 and 16
Env Sci vocab
49
Environmental Studies
12th Grade
11/17/2016

Additional Environmental Studies Flashcards

 


 

Cards

Term
convergent plate boundary
Definition
Area where earth's lithospheric plates are pushed together. See subduction zone.
Term
core
Definition
Inner zone of the earth. It consists of a solid inner core and a liquid outer core.
Term
crust
Definition
Solid outer zone of the earth. It consists of oceanic crust and continental crust.
Term
divergent plate boundary
Definition
Area where earth's lithospheric plates move apart in opposite directions.
Term
earthquake
Definition
Shaking of the ground resulting from the fracturing and displacement of rock, which produces a fault, or from subsequent movement along the fault.
Term
erosion
Definition
Process or group of processes by which loose or consolidated earth materials are dissolved, loosened, or worn away and removed from one place and deposited in another.
Term
geology
Definition
Study of the earth's dynamic history. Geologists study and analyze rocks and the features and processes of the earth's interior and surface.
Term
high-grade ore
Definition
Ore that contains a fairly large amount of the desired mineral.
Term
igneous rock
Definition
Rock formed when molten rock material (magma) wells up from the earth's interior, cools, and solidifies into rock masses. Compare metamorphic rock, sedimentary rock.
Term
lithosphere
Definition
Outer shell of the earth, composed of the crust and the rigid, outermost part of the mantle outside the asthenosphere; material found in earth's plates.
Term
low-grade ore
Definition
Ore that contains a smaller amount of the desired mineral.
Term
magma
Definition
Molten rock below the earth's surface.
Term
mantle
Definition
Zone of the earth's interior between its core and its crust. Compare core, crust.
Term
metamorphic rock
Definition
Rock produced when a preexisting rock is subjected to high temperatures (which may cause it to melt partially), high pressures, chemically active fluids, or a combination of these agents.
Term
mineral
Definition
Any naturally occurring inorganic substance found in the earth's crust as a crystalline solid.
Term
mountaintop removal
Definition
Type of surface mining that uses explosives, massive shovels, and even larger machinery called draglines to remove the top of a mountain to expose seams of coal underneath a mountain.
Term
open-pit mining
Definition
Removing minerals such as gravel, sand, and metal ores by digging them out of the earth's surface and leaving an open pit.
Term
ore
Definition
Part of a metal-yielding material that can be economically and legally extracted at a given time. An ore typically contains two parts: the ore mineral, which contains the desired metal, and waste mineral material (gangue).
Term
overburden
Definition
Layer of soil and rock overlying a mineral deposit. Surface mining removes this layer.
Term
plate tectonics
Definition
Theory of geophysical processes that explains the movements of lithospheric plates and the processes that occur at their boundaries.
Term
sedimentary rock
Definition
Rock that forms from the accumulated products of erosion and in some cases from the compacted shells, skeletons, and other remains of dead organisms.
Term
smelting
Definition
Process in which a desired metal is separated from the other elements in an ore mineral.
Term
spoils
Definition
Unwanted rock and other waste materials produced when a material is removed from the earth's surface or subsurface by mining, dredging, quarrying, and excavation.
Term
strip mining
Definition
Form of surface mining in which bulldozers, power shovels, or stripping wheels remove large chunks of the earth's surface in strips.
Term
subduction zone
Definition
Area in which oceanic lithosphere is carried downward (subducted) under the island arc or continent at a convergent plate boundary. A trench ordinarily forms at the boundary between the two converging plates.
Term
subsurface mining
Definition
Extraction of a metal ore or fuel resource such as coal from a deep underground deposit.
Term
surface mining
Definition
Removing soil, subsoil, and other strata and then extracting a mineral deposit found fairly close to the earth's surface.
Term
tectonic plates
Definition
Various-sized areas of the earth's lithosphere that move slowly around with the mantle's flowing asthenosphere. Most earthquakes and volcanoes occur around the boundaries of these plates.
Term
transform fault
Definition
Area where the earth's lithospheric plates move in opposite but parallel directions along a fracture (fault) in the lithosphere.
Term
tsunami
Definition
Series of large waves generated when part of the ocean floor suddenly rises or drops, usually because of an earthquake.
Term
volcano
Definition
Vent or fissure in the earth's surface through which magma, liquid lava, and gases are released into the environment.
Term
weathering
Definition
Physical and chemical processes in which solid rock exposed at earth's surface is changed to separate solid particles and dissolved material, which can then be moved to another place as sediment. See erosion.
Term
bitumen
Definition
Gooey, black, high-sulfur, heavy oil extracted from tar sand and then upgraded to synthetic fuel oil.
Term
coal
Definition
Solid, combustible mixture of organic compounds with 30[[endash]]98% carbon by weight, mixed with various amounts of water and small amounts of sulfur and nitrogen compounds. It forms in several stages as the remains of plants are subjected to heat and pressure over millions of years.
Term
coal gasification
Definition
Conversion of solid coal to synthetic natural gas (SNG).
Term
coal liquefaction
Definition
Conversion of solid coal to a liquid hydrocarbon fuel such as synthetic gasoline or methanol.
Term
crude oil/petroleum
Definition
Gooey liquid consisting mostly of hydrocarbon compounds and small amounts of compounds containing oxygen, sulfur, and nitrogen. Extracted from underground accumulations, it is sent to oil refineries, where it is converted to heating oil, diesel fuel, gasoline, tar, and other materials.
Term
kerogen
Definition
Solid, waxy mixture of hydrocarbons found in oil shale rock. Heating the rock to high temperatures causes the kerogen to vaporize. The vapor is condensed, purified, and then sent to a refinery to produce gasoline, heating oil, and other products.
Term
liquefied natural gas (LNG)
Definition
Natural gas converted to liquid form by cooling to a very low temperature.
Term
liquefied petroleum gas (LPG)
Definition
Mixture of liquefied propane (C3H8) and butane (C4H10) gas removed from natural gas and used as a fuel.
Term
natural gas
Definition
Underground deposits of gases consisting of 50[[endash]]90% by weight methane gas (CH4) and small amounts of heavier gaseous hydrocarbon compounds such as propane (C3H8) and butane (C4H10).
Term
net energy
Definition
Total amount of useful energy available from an energy resource or energy system over its lifetime, minus the amount of energy used (the first energy law), automatically wasted (the second energy law), and unnecessarily wasted in finding, processing, concentrating, and transporting it to users.
Term
oil sand
Definition
Deposit of a mixture of clay, sand, water, and varying amounts of a tar-like heavy oil known as bitumen. Bitumen can be extracted from tar sand by heating. It is then purified and upgraded to synthetic crude oil.
Term
oil shale
Definition
Fine-grained rock containing various amounts of kerogen, a solid, waxy mixture of hydrocarbon compounds. Heating the rock to high temperatures converts the kerogen into a vapor that can be condensed to form a slow-flowing heavy oil called shale oil.
Term
petrochemicals
Definition
Chemicals obtained by refining (distilling) crude oil. They are used as raw materials in manufacturing most industrial chemicals, fertilizers, pesticides, plastics, synthetic fibers, paints, medicines, and many other products.
Term
shale oil
Definition
Slow-flowing, dark brown, heavy oil obtained when kerogen in oil shale is vaporized at high temperatures and then condensed. Shale oil can be refined to yield gasoline, heating oil, and other petroleum products.
Term
synfuels
Definition
Synthetic gaseous and liquid fuels produced from solid coal or sources other than natural gas or crude oil.
Term
synthetic natural gas (SNG)
Definition
Gaseous fuel containing mostly methane produced from solid coal.
Term
tailings
Definition
Rock and other waste materials removed as impurities when waste mineral material is separated from the metal in an ore.
Supporting users have an ad free experience!