An electronic data processing system for geological field and laboratory data. The E. D. P. system Agto

Abstract

An electronic data processing system has been developed to process the fjeld and laboratory data in connection with geological teamwork mapping in a high-grade metamorphic Precambrian area around Agto in West Greenland. The system is based on a speciaI fjeld note book in which standard information is recorded at each observation point in the fjeld by numerical representations. The description of an observation consists of up to eight numerical values and as much descriptive text as required. The note book data are transfered to the computer input medium by typing the data as they are noted in the fjeld note books. After data processing a printed note book and different types of delineation of the data are received, e. g. maps with sample numbers. Orientation data are treated in such a way that structural diagrams with selected measurements from defined subareas can be drawn and contoured on stereographic projections by the computer. Laboratory data can be combined with the fjeld data and can be subjected to the same treatment. The system is programmed in Gier Algol 4 language and adjusted to the facilities at the computing center of Aarhus University. There are, however, no major difficulties in transferring the principles of the system to other computer systems.