The Geological Society of America

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The Geological Society of America provides access to elements that are essential to the professional growth of earth scientists at all levels of expertise and from all sectors: academic, government, business, and industry.
Lava Tubes of the Cave Basalt, Mount St. Helens, Washington
GREELEY,RONALD et al.
Geological Society of America Bulletin(1972),83(8):2397
http://dx.doi.org/10.1130/0016-7606(1972)83[2397:LTOTCB]2.0.CO;2

The Geological Society of America
The Geological Society of America
GeoScienceWorld
GeoScienceWorld