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Date Permissions Signed

6-25-2018

Date of Award

Fall 1981

Document Type

Masters Thesis

Degree Name

Master of Science (MS)

Department

Geology

First Advisor

Brown, Edwin H.

Second Advisor

Pevear, David R.

Third Advisor

Suczek, Christopher A., 1942-2014

Abstract

Samples from the Shuksan Metamorphic Suite in the Gee Point-Finney Creek area were analyzed for twelve major elements and for the trace elements Y, Sr, Rb, Sc, Ni, Cr, Cu, Zr and Ba. The chemical compositions suggest that the protolith for the blueschist and greenschist was tholeiitic basalt, that the protolith for the iron-rich metasediment was a hydrothermally-formed sea floor precipitate on an active oceanic ridge and that the pelitic schists were once deep sea pelagic sediments. This assemblage probably formed along an oceanic spreading ridge.

Type

Text

Keywords

Shuksan Metamorphic Suite, Northwestern Cascades, Iron formation

Publisher

Western Washington University

OCLC Number

1088420180

Subject – LCSH

Geochemistry--Washington (State)--Cascade Range; Petrology--Washington (State)--Cascade Range

Geographic Coverage

Cascade Range; Washington (State)

Format

application/pdf

Genre/Form

masters theses

Language

English

Rights

Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this thesis for commercial purposes, or for financial gain, shall not be allowed without the author's written permission.

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1981street-martinleahthesismapreduced.pdf (1287 kB)
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