10.1594/GFZ.SDDB.1273 eng dataset GFZ German Research Centre for Geosciences datapub@gfz-potsdam.de http://www.gfz-potsdam.de Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences pointOfContact 2013-09-18 urn:ogc:def:crs:EPSG:4326 XRD of Cores of the KTB Pilot Hole VB1a 2013-09-18 revision doi:10.1594/GFZ.SDDB.1273 KTB, WG Geochemistry author Deutsches GeoForschungsZentrum GFZ publisher The qualitative and quantitative phase analyses were performed in the KTB field laboratory by x-ray powder diffraction using SIEMENS D 500 diffractometer. During early stages of the KTB project a new method for quantitative phase analysis was developed (see references below). The method is based on the comparison of the diffraction spectrum of the unknown sample with those of pure minerals. The powder diffraction data of the minerals are stored in a database built up of 250 natural minerals separated from various types of igneous and metamorphic rocks. The complete analyses (radiation: Cu K alpha, lambda: 1,5405Å, stepwidth: 0,01°, counting time 2 sec/step, angle 2-80°) was carried out automatically including computations. The results of this quantitative phase analysis were used e.g. to check thin section petrography (and vice versa) and to construct a \"mineralogical rock composition log\". Complete EARTH SCIENCE > Solid Earth > Rocks/Minerals > Minerals/Crystals NASA/GCMD Earth Science Keywords publication Geology GEMET - INSPIRE themes, version 1.0 publication eng geoscientificInformation 12.1 12.1 49.5898 49.5898 http://doi.org/10.1594/GFZ.SDDB.1273 WWW:LINK-1.0-http--link Data Access - DOI Data Access - DOI information