Petrology of volcanic rocks from the fore-arc sites

Arend Meijer; Elizabeth Anthony; Mark Reagan

doi:10.2973/dsdp.proc.60.138.1982

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Petrology of volcanic rocks from the fore-arc sites

Journal article

Open access

Petrology of volcanic rocks from the fore-arc sites

Arend Meijer, Elizabeth Anthony and Mark Reagan

Initial Reports of the Deep Sea Drilling Project, Vol.60, pp.709-729

03/1982

DOI: 10.2973/dsdp.proc.60.138.1982

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Abstract

The oldest lavas recovered were two pyroxene andesites similar to tholeiite, overlain by bronzite andesites which are similar to boninites. Secondary minerals include clays, carbonate, zeolite, cristobalite, quartz, tridymite, celadonite, chlorite clay, and Fe-hydroxides. In some samples, pyroxene, plagioclase, Fe-Ti oxides, and glass remain unaltered, but apparently the alteration is not due to high-P and low-T metamorphism.

Mariana Islands

Marine Geology

Oceanography

Pacific Ocean

Petrology

andesites

basalts

boninite

composition

Deep Sea Drilling Project

DSDP Site 458

DSDP Site 459

DSDP Site 460

DSDP Site 461

Igneous and metamorphic petrology

igneous rocks

IPOD

island arcs

Leg 60

Mariana Trench

Micronesia

North Pacific

Northwest Pacific

Oceania

textures

tholeiite

volcanic rocks

West Pacific

Details

Title: Subtitle: Petrology of volcanic rocks from the fore-arc sites
Creators: Arend Meijer - Univ. Ariz., Dep. Geosci. Tucson, AZ USA United States
Elizabeth Anthony
Mark Reagan
Contributors: Marianna Lee (Editor)
Robert Powell (Editor)
Resource Type: Journal article
Publication Details: Initial Reports of the Deep Sea Drilling Project, Vol.60, pp.709-729
Publisher: Texas A & M University, Ocean Drilling Program
DOI: 10.2973/dsdp.proc.60.138.1982
ISSN: 0080-8334
Alternative title: Leg 60 of the cruises of the drilling vessel Glomar Challenger; Apra, Guam to Apra, Guam; March-May 1978
Language: English
Date published: 03/1982
Academic Unit: Earth and Environmental Sciences
Record Identifier: 9984229305902771

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