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Monzogranite with Dikes

Monzogranite with Dikes

The different color line in the rocks, Dikes, were formed by molten rock as it was pushed into existing joint fractures. Light-colored aplite, pegmatite, and andesite dikes formed as a mixture of quartz and potassium minerals cooled in these tight spaces.
Galleries: California, Deserts, Geology
Keywords: CA, Joshua Tree, catus, desert, dikes, formations, fractures, hills, monzogranite, rocks, sky
Photo Location: Joshua Tree National Park, California
Photographer: Gordon Worley
Date of Photo: 03/05/2010
Device Model: NIKON D50
F Number: 22
Original Dimensions: 3008×2000
Picture Orientation: Landscape
GPS Coordinates: 34°1'15.20"N 116°10'15.85"W
Picture Number: 21894