Petrology of gabbroic xenoliths from Mauna Kea Volcano, Hawaii

Author:

Fodor, R.V., Vandermeyden, H.J.

Title:

Petrology of gabbroic xenoliths from Mauna Kea Volcano, Hawaii

Periodical:

Journal of Geophysical Research

Year:

1988

Volume:

93

Pages:

4435-4452

Subject:

Gabbroic xenoliths Mauna Kea volcano

Summary:

Gabbroic xenoliths from the hawaiite summit cone of Mauna Kea volcano, Hawaii, form two groups: olivine gabbros and opaque-oxide gabbros. They are products of Hawaiian magmatism and not N-type mid-ocean ridge basalts. Models using Mauna Kea basaltic rocks indicate that the gabbros are crystalline products from mafic alkalic parent basalt. Extensive crystallization of the parent magma produced further evolved liquid of hawaiite/mugearite composition which is now glass in the xenoliths. Gabbro xenoliths are carried fragmentedly to the surface by ascending hawaiite magma (Laupahoehoe Volcanics).

Label:

Geology

Date:

1988

Collection:

Periodicals