Petrogenesis and source of lavas from seamounts in the Adare Basin, Western oss Sea: Implications for the origin of Cenozoic magmatism in Antarctica R

Summary The Adare Basin Seamounts (ABS) consist of 100’s of relatively small eruptive centers that are randomly distributed over an area of ~20,000 km2 in the Adare Basin and on the adjacent continental shelf of the western Ross Sea, north Victoria Land (Fig. 1). Preliminary interpretations based on...

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Bibliographic Details
Main Authors: K Urt S. Panter, Pat Castillo
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Adare
Adare Basin
Antarctic
Ross Sea
Victoria Land
West Antarctica
Antarc*
Antarctica
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.590.8902
http://pubs.usgs.gov/of/2007/1047/ea/of2007-1047ea069.pdf
Description
Summary:Summary The Adare Basin Seamounts (ABS) consist of 100’s of relatively small eruptive centers that are randomly distributed over an area of ~20,000 km2 in the Adare Basin and on the adjacent continental shelf of the western Ross Sea, north Victoria Land (Fig. 1). Preliminary interpretations based on the geochemistry of dredged lavas indicate that the ABS are intimately related to intraplate alkaline volcanism in the west Antarctic rift system. Models for the origin and cause of volcanism in west Antarctica often disagree and are based almost exclusively on volcanic rocks erupted through continental lithosphere. The study of ABS lavas offers a more pristine view of sources for magma and ifferentiation processes unfettered by continental crust. d

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