Publication Date:
2021-08-13
Description:
Abstract
Description:
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\".
Keywords:
German Continental Deep Drilling Program
;
Land based
;
Accessories
;
Al2SiO5
;
Amphiboles
;
Biotites
;
Carbonates
;
Chlorite
;
Clinopyroxene
;
Date of Sampling
;
Epidote
;
Garnet
;
Olivine
;
Orthopyroxene
;
Oxyde Ores
;
Plagioclases
;
Potassium Feldspars
;
Quartz
;
Serpentine
;
Spinels
;
Sulfidic Ores
;
White Mica
;
X-ray diffraction
;
Zeolite
Language:
English
Type:
Dataset
,
Dataset
Format:
60459 DataPoints
Format:
text/tab-separated-values
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