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A preliminary synthesis of structural, stratigraphic, and magnetic data from part of the northwest Adirondacks, New York

Open-File Report 76-281

By:
,

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Abstract

Synthesis of recent work in the NW Adirondacks, New York allows the development of a coherent geologic picture. Mapping of the Precambrian rock units enables the recognition of four major units which are, from bottom to top, 1) Granitic Gneiss (alaskite), 2) Lower Marble, 3) Major Gneiss, and 4) Upper Marble. Additionally, lenses of amphibolite and granite occur as intrusives within this succession. These rock units have been complexly deformed by three major folding episodes, and by two distinctly different styles of faulting. The result has been to produce large northeast-southwest trending dome and basin structures. Patterns of magnetic intensity closely parallel distribution of rock units and provide additional information for a structural and stratigraphic synthesis-.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
A preliminary synthesis of structural, stratigraphic, and magnetic data from part of the northwest Adirondacks, New York
Series title:
Open-File Report
Series number:
76-281
Edition:
-
Year Published:
1976
Language:
ENGLISH
Publisher:
U.S. Geological Survey,
Description:
25 leaves :ill. (1 folded), maps (4 folded) ;27 cm.; (22 p., 5 sheets - PGS)