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Determination of Paleotectonic Principal Stress Direction, Including Analysis of Joints by Optical Diffraction.

Authors
Steckley-OC
Source
NTIS: PB 215 814 :18 pages
Link
NIOSHTIC No.
10000832
Abstract
A study of joints in Marathon County, Wisconsin, was made to determine the orientation of regional paleotectonic stresses and to develop a method of using optical diffraction analysis (oda) in studying joint orientations and spacings. Standard geologic and petrofabric techniques employing the use of a geologic compass and a schmidt net were used in gathering, describing, and reducing joint orientation data. Analysis of selected outcrops with oda indicates that oda can be applied to study both joint orientations and spacings. Oda is shown to be a rapid method that can be used to complement standard petrofabric techniques, especially in the study of joint spacings.
Publication Date
19720101
Document Type
IH; Report of Investigations
Fiscal Year
1972
NTIS Accession No.
PB-215814
NTIS Price
A03
Identifying No.
RI 7706
NIOSH Division
TCRC;
Source Name
NTIS: PB 215 814
State
WI;
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