Geologic spatial analysis program users guide for digital elevation model analysis procedures for detection of crustal fracture planes

The programs developed for analysis of digital elevation models to define crustal fracture planes have evolved from research initiated in 1983. This program users guide is a preliminary attempt to show users the sequence of programs used in the analysis. There are now 16 individual programs and as the research progresses, others will replace and/or complement those described here. The functions of the programs are briefly described in the sequence a user conducting an analysis would need to use them. Each program is then described and required interactive input is shown in bold text. The computer prompt ''WASSUreverse arrowRGA>'' and all terminal statements and requests are provided as an example for the user. Input and output files are identified. Several of the programs require the user to run on a Digital Equipment Corporation VAX workstation GPX.