Which Part of the United States Has Present-Day Basins or Basins

question 2

Multiple Choice

Which part of the United States has present-day basins or basins preserved in its older rocks?

• A) Basin and Range province of the western U.S.
• B) Gulf Coast region of the southern U.S.
• C) Appalachian Mountains
• D) center of the continent, such as Michigan
• E) all of these

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Definitions:

Lava Fountain

A fountain of molten lava propelled into the air by pressure and escaping gases.

Volcanic Dome

A rounded mound formed over a volcanic vent, created by the slow extrusion of viscous lava from a volcano.

Fissure

1. A fracture or crack on the land surface, such as that which forms by differential subsidence. 2. A magma-filled fracture in the subsurface that typically solidifies into a dike, or a linear volcanic vent erupting onto the land surface.

Volcanic Ash

Fine particles of rock and volcanic glass expelled into the air during a volcanic eruption.