Author: Anonymous

Detrital sedimentary rocks are classified (named) based on the ________.

________ sandstone contains abundant feldspar, suggesting that the sand was derived by weathering and erosion of granitic bedrock.

Which sedimentary structure indicates the depositional environment involved the drying out of fine grained sediments?

Nonclastic textures are common in which of the following sedimentary rocks?

Decompression melting occurs because of ________.

Foliated metamorphic rocks are composed largely of equidimensional grains of minerals such as quartz and calcite.

Which sedimentary structure indicates the depositional environment involved the drying out of fine grained sediments?

The average composition of rocks comprising a large composite cone or stratovolcano is similar to a(n) ________ magma.

Hornblende and the other amphiboles have what type of silicate structure?

The (geologically) recent volcanic activity in Yellowstone National Park is ________.