FIELDTRIP MEASUREMENTS AND MAPPING OF THE SELECTED GEOVARIABLES IN ROCKS AND SOILS USING RASPBERRY PI AND SENSE HAT WITH APPROPRIATE PYTHON CODE AND SAGA GIS SOFTWARE PACKAGE

Research of various surface and shallow geological properties of rocks and soil is one of the main aims of geological field research. Most of these studies firstly encompasses a general prospection, based on which smaller area is separated in which more detailed research are implemented, for example shallow drilling, surface sampling, photographing or measuring geomorphological and chemical properties. It’s time and financially demanding to transfer samples and other types of data after each prospection to the laboratory, analyse them there and then return back to the same location to repeat a similar procedure. Therefore the aim is to perform as many quick analyses as possible on the field, by handy or smaller equipment. Basic physical properties of rocks or soil are often measured, which are classified into a common group of geovariables. Here, four are described, as follows temperature and three orthogonal components of magnetic field strength (x,y,z). All can be quickly measured with Sense HAT module and then mapped with program SAGA on Raspberry Pi 400 microcomputer with it’s own display. That way, within the same day, smaller units can be separated and targeted samples of rocks or soil can be taken for subsequent laboratory work.