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Subject: "Petroleum Geology."
LC Class: Is
Is Is Not
G - Geography, Anthropology, Recreation
Subject (Era): Is
Is Is Not
From 230 to 570 million years ago
Subject (Region): Is
Is Is Not
United States

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1.
Pre-Pennsylvanian rocks along the Front Range of Colorado
Author
Maher, John C. (John Charles), 1914-
Published
[Washington, D.C.] : United States Geological Survey, 1950.
Online
View online version
Location
Library Shelving Facility (LSF) >> Case 6 Drawer 1:3
Format
Maps & GIS
2.
Correlation of pre-Atoka rocks in the Arkansas Valley, Arkansas
Author
Maher, John C. (John Charles), 1914-
Published
[Washington, D.C.] : United States Geological Survey, 1953.
Online
View online version
Location
Library Shelving Facility (LSF) >> Case 6 Drawer 1:3
Format
Maps & GIS