Geology Quiz 17

The hot spring deposits at Mammoth Hot Springs, Yellowstone National Park, are travertine. What rock probably lies somewhere beneath the hot springs?

Which common, rock-forming mineral or mineral group is most readily dissolved by groundwater?

The water table is ________.

Water-saturated muds have low permeabilities but can have greater porosities than well-cemented sandstone.

________ is the volume of voids or open space in a rock or unconsolidated material.

Lowering of the water table around a pumping well results in a cone of infiltration.

Permeability is the physical force that pushes water below the water table through a porous, rock material.

When the elevation of the water table is higher than the level of the surface of a stream, you have a __________.

A ________ is the icicle-like speleothem that grows down from the roof of a cavern.

An unconfined water table is the ________.

Where do the majority of hot springs in the United States occur?

________ are specific features of karst topography.

The water table is a surface separating the saturated and unsaturated zones.

Porosity is a measure of the volume of open space in rocks and unconsolidated, geological materials like alluvium and soils.

Most caves and caverns originate by solution of limestone.

An artesian well is one in which ________.

________ are characteristics found in all good aquifers.

Excessive groundwater withdrawals can cause ________.

What is a hole bored into the zone of saturation called?

Which one of the following concerning stalactites and stalagmites is not true?

Where is the majority of groundwater found?

________ would have the largest capacity to naturally remove sewage pollutants.

________ controls the ease (or difficulty) of groundwater transmission through a porous material.

How is groundwater flow primarily controlled?

Which one of the following statements is true for an artesian aquifer?

In areas underlain by unconsolidated or weakly consolidated strata, lowering of the water table can cause the land to subside.

What type of rock do caves most commonly form in?

The aerated zone ________.

In general, contaminated groundwater will be naturally cleaned faster by circulation through porous and permeable sands than by circulation through fractured, crystalline igneous and metamorphic rocks.

How well pores are connected to allow groundwater flow is known as _____.

A "soda straw" is one type of _____.

An aquifer is ________.

Which one of the following is not a speleothem?