Read online Bulletin of the Southern California Academy of Sciences: Vols; 52-54; 1953-1955 (Classic Reprint) - John A. Comstock file in PDF Online

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Excerpt from Bulletin of the Southern California Academy of Sciences: Vols; 52-54; 1953-1955There is an unconformity at the top of Member I which cuts out the upper part to the north and northwest so that in the Grand Canyon area the distinctive unit is not recognized.Member II. This rock unit differs lithologically from the others by its high content of chert. In the

Title : Bulletin of the Southern California Academy of Sciences: Vols; 52-54; 1953-1955 (Classic Reprint)
Author : John A. Comstock
Language : en
Rating :
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Type : PDF, ePub, Kindle
Uploaded : Apr 03, 2021

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