Exam 5: Geologic Resources

Tar sands are permeated with kerogen.

Hydrothermal processes are probably responsible for the formation of __________ ore deposits than other processes.

Coal reserves are thought to be sufficient to last a few __________.

Hydrothermal vein deposits:

Several times during the history of the Earth, shallow seas covered large portions of North America and precipitated evaporite deposits.

Mud converts to shale and organic material converts to liquid petroleum:

Oil shale is permeated with an organic material that has not yet converted to oil called __________.

__________ __________ are the known amount of ore in the ground.

Evaporite deposits form by _______________.

__________ __________ form mineral deposits as liquid magma solidifies to form an igneous rock.

Hydrothermal processes form _______________.

The __________ __________ refers to the fact that electricity can be used to dissociate water into oxygen and hydrogen that could then be used to power a fuel cell to drive an electric motor.

Layers of iron-rich minerals sandwiched between beds of silica minerals are called __________ __________ __________

Petroleum, coal, and natural gas are called __________ __________because they formed from the remains of plants and animals that lived in the geologic past.

Bauxite is an example of a __________ __________ deposit.

____________________ are examples for nonmetallic mineral resources.

During burial, most of the hydrogen and oxygen are expelled from peat to concentrate carbon and form coal.

If conditions are favorable, petroleum is forced out of the source rock and migrates to a nearby layer of sandstone or limestone to accumulate in a reservoir.

__________ energy resources are replenished by natural processes as we use them.

The major fuel in nuclear power plants is an isotope of _______________.