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Filtering by: Creator Klein, Victoria G. Creator Fisk, Martin R. Has journal sim Journal of Geophysical Research

Tahiti: Geochemical evolution of a French Polynesian volcano

Creator:

Duncan, Robert A., Fisk, Martin R., White, William M., and Nielsen, Roger L.

Abstract:

The island of Tahiti, the largest in French Polynesia, comprises two major volcanoes aligned NW-SE, parallel with the general trend of the Society Islands hotspot track. Rocks form this volcanic system are basalts transitional to tholeiites, alkali basalts, basanites, picrites, and evolved lavas. Through K-Ar radiometric dating we have established...

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--0.5 mm size fraction, and ultrasonically washed in distilled water. A split 0-5 g) was then powdered
Geochemistry of back arc basin volcanism in Bransfield Strait, Antarctica: Subducted contributions and along-axis variations

Creator:

Keller, Randall A., Fisk, Martin R., Smellie, John L., Strelin, Jorge A., and Lawver, Lawrence A.

Abstract:

Bransfield Strait is a Quaternary, ensialic back arc basin at the transition from rifting to spreading. Fresh volcanic rocks occur on numerous submarine features distributed along the rift axis, including a discontinuous neovolcanic ridge similar to the nascent spreading centers seen in some other back arc basins. Smaller edifices near...

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M g O C aO N a 2 O K 2 O P 2 O 5 L O I T o ta l V C r N i C u Z n G a D 1 A 5 4 .0 5 1