GEOLOG: A Computer-Based Scheme for Detailed Analysis of Stratigraphy, Especially As Applied to Data from Drill Holes In Coal Exploration or Development

CIM Bulletin, Vol. 70, No. 783, 1977

C. I. Godwin, University of British Columbia, R. E. Hindson, Teck Corporation, and P. H. Blanchet, Consultant, Vancouver, B.C.

Geolog is a computer-oriented technique for recording and interpreting geological field observations (particularly with respect to drill core and cuttings) for various kinds of mineral deposits. The modification of the general system, for application to coal and other sedimentary deposits is presented here. This stratigraphic version has been tested by a successful application to the description and interpretation of data from 15 drill holes totaling 14,600 feet (4,450 meters) on a coal-bearing property in the Peace River area of British Columbia. Drill-hole data are collected on an 80-column, fixed-format listing that includes (a) interval described, (b) core recovery, (c) rock type (lithologies can be described in great detail), (d) structural features, (e) regional lithologic units and (f) accessory minerals, etc. Terminology in Geolog is keyed to logical word abbreviations and simple codes, resulting in concise, consistent and readable descriptions. Comments on analytical information can be added wherever required. This computer-oriented approach allows rapid and varied manipulation of data to provide a variety of useful output, such as strip logs, cross sections and isopach maps. Consequently, the use of Geolog, in addition to providing a base for uniform quality of data collection, helps in the rapid appraisal of problems related to correlation and resource-reserve estimation for coal seams.
Keywords: Geolog, Stratigraphy, Drilling, Exploration, Coal deposits, Computers, Peace River area, Sedimentary rocks, Data gathering, Logging.