Earth and Planetary Sciences ETDs

Publication Date

Spring 5-29-1962

Abstract

The primary purpose of this investigation was to determine the presence or absence of pre-Pennsylvanian strata in the central part of the Sandia Mountains, along their western scarp. No strata older than Pennsylvanian were found by the author in this area.

The strata present in the Sandia Rim include the upper clastic member of the Sandia formation and part of the lower gray limestone member of the Madera limestone, both of Pennsylvanian age.

The Sandia formation is a predominantly clastic unit of sandstone, shale, limestone, and conglomerate which rests unconformably on a profound erosion surface formed on the Precambrian Sandia granite. The formation ranges in thickness from about 175 to 300 feet. The sediments were deposited in a transitional to epineritic environment under unstable to stable self conditions. A micro-paleontologic and paleontologic study of this formation indicates that the lowermost exposed units are not older than Pennsylvanian.

Degree Name

Earth and Planetary Sciences

Level of Degree

Masters

Department Name

Department of Earth and Planetary Sciences

First Committee Member (Chair)

S. A. Northorpe

Second Committee Member

V.G. Kelly

Third Committee Member

Roger Y. Anderson

Language

English

Keywords

Sandia Mountains, Pre-Pennsylvanian Strata, Sandia Formation

Document Type

Thesis

fig-7.tif (294986 kB)
Geologic map, Sandia Mountains, Bernalillo and Sandoval Counties, NM

Catacosinos-fig-8.jpg (7336 kB)
Columnar sections, Sandia and Madera formations

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