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A Computer Program for the Stereographic Analysis of Coal Fractures and Cleats.

Authors
Jeran-PW; Mashey-JR
Source
NTIS: PB 191 000 :34 pages
Link
NIOSHTIC No.
10000600
Abstract
The stereonet analysis program (snap) is a mathematics tool which, by means of a computer, reproduces mathematically the manual techniques of preparing stereograms. This computer program was developed to provide a fast, accurate, and economical means of analyzing fracture orientation data. It is written in Fortran IV for use on a UNIVAC 1108 operating under an Exec II system, but can be adapted to other systems. Snap is currently being used to aid in the analysis of cleats and other geologically induced fractures associated with coalbeds that are being mined underground. Methane flows through the coalbed and into these mine workings predominantly through the fracture system. Therefore, knowledge of fracture orientation is an invaluable aid in the development of methane control technology.
Publication Date
19700101
Document Type
IH; Information Circular;
Fiscal Year
1970
NTIS Accession No.
PB-191000
NTIS Price
A04
Identifying No.
IC 8454
NIOSH Division
PRC;
Source Name
NTIS: PB 191 000
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division