Key Terms Flashcards
0
Q
Connate Water
A
Water trapped in a formation at the time of deposition.
1
Q
Anorthosite
A
A plutonic igneous rock composed almost entirely of plagioclase feldspar, found in the San Gabriel Mountains and dated at 1.022 billion years.
2
Q
Franciscan Formation or Group
A
A heterogeneous unit of sedimentary and volcanic rocks consisting of graywacke and inter bedded shale, minor amounts of chert, limestone, greenstone, and metamorphic rocks of green schist and blueschist facies. The formation may be 50,000 feet thick. It is one of the basement types in the Coast Ranges.
