Butcher Ridge igneous complex, Cook Mountains, Antarctica.

S. Marshak; P. R. Kyle; W. C. McIntosh; V. Samsonov; M. Shellhorn

Butcher Ridge igneous complex, Cook Mountains, Antarctica.

S. Marshak, P. R. Kyle, W. C. McIntosh, V. Samsonov, M. Shellhorn

Geology

Research output: Contribution to journal › Article

Abstract

The 10 km-long Butcher Ridge was mapped on a scale of 1:5000; four sections were measured and 400 samples collected. An ⁴⁰Ar/³⁹Ar age shows the body to be 175 m.y. old. Lithologies are diverse and are described in detail: they include dolerite, massive andesite and rhyolite. The complex may represent mixing in a hypabyssal setting of a silicic magma derived from the melting of crustal rocks and a basaltic magma derived from the mantle. -G.R.M.

Original language	English (US)
Pages (from-to)	54-55
Number of pages	2
Journal	Antarctic Journal of the United States
Volume	16
Issue number	5
State	Published - Jan 1 1981

ASJC Scopus subject areas

Earth and Planetary Sciences(all)

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Marshak, S., Kyle, P. R., McIntosh, W. C., Samsonov, V., & Shellhorn, M. (1981). Butcher Ridge igneous complex, Cook Mountains, Antarctica. Antarctic Journal of the United States, 16(5), 54-55.

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AU - Kyle, P. R.

AU - McIntosh, W. C.

AU - Samsonov, V.

AU - Shellhorn, M.

PY - 1981/1/1

Y1 - 1981/1/1

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