Articles | Volume 34, issue 6
https://doi.org/10.5194/ejm-34-603-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ejm-34-603-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
ICDP Oman Drilling Project: varitextured gabbros from the dike–gabbro transition within drill core GT3A
Artur Engelhardt
CORRESPONDING AUTHOR
Institute of Mineralogy, Leibniz Universität Hannover, 30167 Hanover, Germany
Jürgen Koepke
Institute of Mineralogy, Leibniz Universität Hannover, 30167 Hanover, Germany
Chao Zhang
Department of Geology, Northwest University, Xi'an, 710069, China
Dieter Garbe-Schönberg
Institute of Geosciences, Christian-Albrechts-Universität zu
Kiel, 24118 Kiel, Germany
Ana Patrícia Jesus
Instituto Dom Luiz, Faculty of Sciences, University of Lisbon, Lisbon,
1649-004, Portugal
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Short summary
We present a detailed petrographic, microanalytical and bulk-chemical investigation of 36 mafic rocks from drill hole GT3A from the dike–gabbro transition zone. These varitextured gabbros are regarded as the frozen fillings of axial melt lenses. The oxide gabbros could be regarded as frozen melts, whereas the majority of the rocks, comprising olivine-bearing gabbros and gabbros, show a distinct cumulate character. Also, we present a formation scenario for the varitextured gabbros.
We present a detailed petrographic, microanalytical and bulk-chemical investigation of 36 mafic...