More than 200 specimens from different occurrences of the Rogaland igneous complex and surrounding granulite facies metamorphic rocks (S. W. Norway) have been analysed by a direct non-destructive proton induced gamma-ray emission (PIGE) technique. The fluorine contents vary from < 25 ppm to 3500 ppm. There is a good correlation between the concentration of fluorine and that of phosphorus for ig...

EDITORIAL article Front. Earth Sci., 18 July 2023Sec. Petrology Volume 11 - 2023 | https://doi.org/10.3389/feart.2023.1251991

Pacific-wide plate deformation (62-47 Ma) J. O’Connor, K. Hoernle, F. Hauff, J. Phipps Morgan, D. Sandwell, J. Wijbrans, P. Stoffers GeoZentrum Nordbayern, Erlangen and Alfred Wegener Institute for Polar and Marine Research, Bremerhaven SFB 574 and Leibniz Institute of Marine Sciences (IFM-GEOMAR), University of Kiel, Germany 3 Earth and Atmospheric Sciences, Cornell University, Ithaca, NY Scri...

1 Department of Environmental Systems Science, Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, Zurich, Switzerland, 2 Department Surface Waters, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Kastanienbaum, Switzerland, 3 Department Water Resources and Drinking Water, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland, 4 ...

IMPLICATIONS FOR HF-W CHRONOMETRY T. S. Kruijer, M. Fischer-Gödde, P. Sprung, I. Leya, R. Wieler and T. Kleine. ETH Zürich, Inst. of Geochemistry and Petrology, Clausiusstrasse 25, 8092, Zürich. Correspondence: [email protected]. Institut für Planetologie, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany. Space Research and Planetary Sciences, U...

Petrology and Mineral Compositions: The fresh, pale gray interior of this specimen has multiple shock fractures (with very minor calcite coatings) and some thin glass veinlets (Figure 2). This rock is a poikiloblastic recrystallized breccia, with larger grains of plagioclase (~70%) enclosing much smaller grains (less than 100 microns across) of pyroxene (~20%), olivine (~10%) and accessory Ti-c...

Plutonic rocks such as gabbros provide information on magmatic and tectonic processes which occur beneath a mid-ocean rift axis well the formation of oceanic crust. Igneous rocks, reported from Red Sea Rift valley, have been limited to extrusive basalts so far. The only deeper crustal found in area are flanks interpreted late-stage continental magmatism. Here, we present geochemistry first reco...