Iowa Geology 2

Identify the main rock types of the Pennsylvanian era:

Which era is Iowa not SOUTH of the equator?

Silurian

Ordovician

Pennsylvanian

Devonian

The Galena and Maquoketa formations are similar in that they are both composed of mostly:

Chert and Dolomite

Limestone and Shale

Sandstone and Limestone

Dolomite and Limestone

Which of the following eras have the earliest mammal evidence? , Which is most famous for mammal fossils?

Salt and Pepper sands are found in which geological era?

Cenozoic

Pleistocene

Pennsylvanian

Ordovician

What is the Iowa Erosion Surface (IES)?

Phase of sea flooding and retreating in the interior of the contentent

Phase of erosion of old surface glaciers

Phase of glaciation with many record of advances and retreats

Phase of shallow seas with marine life and fluctuating sea levels

Who was the most influential geologist of the Owens Survey of 1852?

John Locke

Benjamin Button

Julien Dubuque

James Hall

Which type of sedimentary rock is most abundant in Iowa?

Chemical

Biological

Erosion

Clastic

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