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L52 Igneous dyke intrusion. Convict Lake. California, USA
Position:
N037° 35'
W118° 50' approx.
Elevation:
9000' / 2750m approx.
Image format:
MF 35mm
IGNEOUS DYKE INTRUSION
The black line running up the face of the mountain is a DYKE.
The black rock was once hot and molten and was injected into a
crack fissure in the rock under great pressure. Dykes are common
features in areas that have had a history of VOLCANIC ACTIVITY
in the past.
Less detail
Image Trail:
L6 Volcanic neck and dyke. Ship Rock. New Mexico, USA
L7 Igneous dyke radiating out from volcanic neck. Ship Rock. New
Mexico, USA
L48 Granite dykes intruding slate. Cornwall, USA
Links:
http://geography.com.sg/tectonics/index.html |
