Geology√

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Geology√

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Geology√

1974 Archival description results for Geology√

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Gorda Escarpment

Gorda Escarpment. Showing the displacement of the submarine contours off northern California where the San Andreas Fault may bend seaward. According to this hypothesis, the Gorda Escarpment resulted from the seaward shift of the area tot he south. The dots are earthquakes epicentres and the accompanying numbers are magnitudes on the Richter Scale, which measures the intensity of earthquakes according to their damage to structures. It will be noted that the large earthquakes (6 and over) are concentrated along this escarpment. Shepard, 1960, p. 125.

Glory hole, Ruby Gulch Mine, Little Rock Mountains

Glory hole, Ruby Gulch Mine, Little Rock Mountains. Dark yellow green rock under trees to the left is Precambrian amphibolite schist. To the right of this is white veined syenite (Tertiary), to right of this is the Ruby shear zone (gold) in the syenite and farther to the right is syenite with pyrite.

Results 1036 to 1050 of 1974

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