Multiple Choice
The size, shape, and geometric arrangement of mineral grains in igneous rocks is called ________ and it indicates ________.
A) aphanitic form, how much water was present in the melt
B) igneous geometry, the original % of partial melting
C) geomorphology, depth of origin for the original magma
D) texture, the environmental conditions in which the rock formed
Correct Answer:
Verified
Correct Answer:
Verified
Q39: Pyroxene, hornblende, and biotite are all minerals
Q42: The phaneritic equivalent of basalt is<br>A)gabbro<br>B)granite<br>C)diorite<br>D)peridotite
Q44: Which of the following igneous rocks exhibit
Q45: Mafic rocks have silica contents of _
Q46: Melting of rocks to form magma as
Q48: What is/are thought to be the main
Q49: _ is composed mainly of ferromagnesian minerals.<br>A)Peridotite<br>B)Rhyolite<br>C)Andesite<br>D)Granite
Q50: The aphanitic equivalent of granite is<br>A)rhyolite<br>B)andesite<br>C)basalt<br>D)komatiite
Q51: What phenocryst minerals would you expect to
Q52: Which of the following igneous rocks usually