Igneous Rock Bodies

1
Igneous Rock Bodies

• Extrusive Lava flows
• Intrusive Batholiths, Dikes and Sills

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Curtain of Fire - Iceland, Alan Rubin
3
sill
dike
batholith
http//www.chm.bris.ac.uk/webprojects2002/spence/p
age3a.htm
4
http//facweb.bhc.edu/academics/science/harwoodr/G
eol102/Study/mesozo2.htm
5
http//pubs.usgs.gov/publications/graphics/Half_Do
me.gif
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Black Canyon of the Gunnison, Colorado
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Basalt dike, Wrangell-St. Elias NP, Alaska
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Granitic inclusion in basalt dike, Alaska
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Feeder dikes, Iceland - Alan Rubin
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Closeup of feeder dike, Iceland - Alan Rubin
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Dike at Sabbaday Falls, White Mountain National
Forest, New Hampshire
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Sabbaday Falls, New Hampshire
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Basaltic dikes, Oregon Coast
14
Crosscutting dikes, Oregon Coast