Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Karen Hanghøj"'
Publikováno v:
Geological Society, London, Special Publications. 526
The present special publication addresses opportunities and challenges in meeting the demand for essential and critical metals and minerals needed to supply the green and sustainable societies of the future. The notion of criticality in different cou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60fa1e8afa609c9282a71985cd498c0a
https://doi.org/10.1144/sp526-2022-312
https://doi.org/10.1144/sp526-2022-312
Publikováno v:
Geology. 40:199-202
Knowledge of the 187 Os/ 188 Os ratio as well as the inventories of rhenium and platinum group elements (PGE) in oceanic crust allows quantification of the proportion of recycled oceanic crust in oceanic basalt sources. Our knowledge is limited by th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de4e64a990377f7da10f933cb97176fb
https://doi.org/10.1130/g32431.1
https://doi.org/10.1130/g32431.1
Publikováno v:
Journal of Petrology
Journal of Petrology, Oxford University Press (OUP), 2010, 51 (1-2), pp.201-227. ⟨10.1093/petrology/egp077⟩
Journal of Petrology, Oxford University Press (OUP), 2010, 51 (1-2), pp.201-227. ⟨10.1093/petrology/egp077⟩
The Oman ophiolite consists of several massifs cropping out along a 500 km long band trending NW-SE along the coast of Oman; it is one of the best exposed sections of oceanic crust and mantle in the world. There is a gradient in igneous processes and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d378985567b2614cc51409fbc7a07889
https://doi.org/10.1093/petrology/egp077
https://doi.org/10.1093/petrology/egp077
Publikováno v:
Contributions to Mineralogy and Petrology. 152:335-347
Dunitic xenoliths from late Palaeogene, alkaline basalt flows on Ubekendt Ejland, West Greenland contain olivine with 100 × Mg/(Mg + Fe), or Mg#, between 92.0 and 93.7. Orthopyroxene has very low Al2O3 and CaO contents (0.024–1.639 and 0.062–0.2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e91f413364824df30b254088d264765
https://doi.org/10.1007/s00410-006-0109-0
https://doi.org/10.1007/s00410-006-0109-0
Publikováno v:
Earth and Planetary Science Letters. 245:777-791
In situ 187 Os/ 188 Os ratios are determined on Os-rich platinum-group minerals in podiform chromitites both in the Proterozoic ophiolite, Eastern Desert, Egypt, and in the Phanerozoic Oman ophiolite. Because they have very low Re/Os, these primary m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c12ae64aeab13156b049aeab905aef7
https://doi.org/10.1016/j.epsl.2006.03.021
https://doi.org/10.1016/j.epsl.2006.03.021
Publikováno v:
Contributions to Mineralogy and Petrology. 120:265-269
Polymineralic aggregates composed of clinopyroxene, Fe-Ti oxide minerals, apatite and accessory K-feldspar, biotite, and amphibole are enclosed in cumulus plagioclase grains in the Middle Zone of the Skaergaard intrusion. The chemistry of the mineral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8b06d522afa077e49cc85b576f10ff1
https://doi.org/10.1007/bf00306507
https://doi.org/10.1007/bf00306507
Autor:
Karen Hanghøj, Bradley R. Hacker, Matthew Rioux, Peter B. Kelemen, Jerzy S. Blusztajn, George E. Gehrels, James M. Mattinson
Publikováno v:
Tectonics. 29
[1] Seismic profiles of several modern arcs have identified thick, low-velocity midcrustal layers (Vp = 6.0–6.5 km/s) that are interpreted to represent intermediate to felsic plutonic crust. The presence of this silicic crust is surprising given th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97800ced558965746f591f37f7e91aab
https://doi.org/10.1029/2009tc002541
https://doi.org/10.1029/2009tc002541
This chapter has four main aims. Provide a comprehensive picture of the composition of volcanic rocks from subduction-related magmatic arcs. Review evidence in favor of the existence of andesitic, as well as basaltic primary magmas in arcs. Present n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6acc088c5b6066f926cec4ccbd31ddd
https://doi.org/10.1016/b0-08-043751-6/03035-8
https://doi.org/10.1016/b0-08-043751-6/03035-8
