Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Troels F. D. Nielsen"'
Autor:
Christian Tegner, Lars Peter Salmonsen, Marian B. Holness, Charles E. Lesher, Madeleine C. S. Humphreys, Peter Thy, Troels F. D. Nielsen
Publikováno v:
GEUS Bulletin, Vol 53, Pp 1-8 (2023)
We report a compilation of new and published whole-rock major and trace element analyses for 646 samples of the Skaergaard intrusion, East Greenland. The samples were collected in 14 stratigraphic profiles either from accessible and well-exposed surf
Externí odkaz:
https://doaj.org/article/e66684e734f94018b7db480880b161d0
Autor:
Lia N. Kogarko, Troels F. D. Nielsen
Publikováno v:
Minerals, Vol 11, Iss 6, p 548 (2021)
The Lovozero complex, Kola peninsula, Russia and the Ilímaussaq complex in Southwest Greenland are the largest known layered peralkaline intrusive complexes. Both host world-class deposits rich in REE and other high-tech elements. Both complexes exp
Externí odkaz:
https://doaj.org/article/e883a70883ec4b86abe826c93c286090
Autor:
Lia Kogarko, Troels F. D. Nielsen
Publikováno v:
Minerals, Vol 10, Iss 11, p 1036 (2020)
Lovozero complex, the world’s largest layered peralkaline intrusive complex hosts gigantic deposits of Zr-, Hf-, Nb-, LREE-, and HREE-rich Eudialyte Group of Mineral (EGM). The petrographic relations of EGM change with time and advancing crystalliz
Externí odkaz:
https://doaj.org/article/8f86f696dec24ae185ce1e0992c67057
Autor:
Dominik Gudelius, Michael W Marks, Gregor Markl, Troels F D Nielsen, Jochen Kolb, Benjamin Walter
Publikováno v:
Journal of Petrology.
In many alkaline complexes, large amounts of ultramafic rocks occur together with carbonatites, melilitolites and other alkaline silicate rocks. There is an ongoing debate if and how these contrasting lithologies were formed by differentiation of a c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19769f95b7c958aa20dbdc50eaf0e54f
https://doi.org/10.1093/petrology/egad036
https://doi.org/10.1093/petrology/egad036
Publikováno v:
Science Advances. 8
The vertical growth rate of basaltic magma chambers remains largely unknown with available estimates being highly uncertain. Here, we propose a novel approach to address this issue using the classical Skaergaard intrusion that started crystallizing f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::065c39804fa620b8286aa25fba59eecc
https://doi.org/10.1126/sciadv.abq0394
https://doi.org/10.1126/sciadv.abq0394
Autor:
Henriette Hansen, Troels F D Nielsen
Publikováno v:
Journal of Petrology. 63
Highly magnesian, olivine-phyric tholeiitic basaltic and picritic lavas with >5 wt% TiO2 from the Prinsen af Wales Bjerge (PAWB) region are chemically distinct from all other Paleogene East Greenland flood basalts and from basalts in the North Atlant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d39af51e2f163f37909df0cbad5b0f7f
https://doi.org/10.1093/petrology/egac078
https://doi.org/10.1093/petrology/egac078
Autor:
Troels F. D. Nielsen, Lia Kogarko
Publikováno v:
Minerals
Volume 10
Issue 11
Minerals, Vol 10, Iss 1036, p 1036 (2020)
Volume 10
Issue 11
Minerals, Vol 10, Iss 1036, p 1036 (2020)
Lovozero complex, the world&rsquo
s largest layered peralkaline intrusive complex hosts gigantic deposits of Zr-, Hf-, Nb-, LREE-, and HREE-rich Eudialyte Group of Mineral (EGM). The petrographic relations of EGM change with time and advancing c
s largest layered peralkaline intrusive complex hosts gigantic deposits of Zr-, Hf-, Nb-, LREE-, and HREE-rich Eudialyte Group of Mineral (EGM). The petrographic relations of EGM change with time and advancing c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a41d5c971cb53d5adfb464b27ad28581
https://doi.org/10.3390/min10111036
https://doi.org/10.3390/min10111036
Publikováno v:
Economic Geology. 93:488-509
This paper describes the setting, structure, and textural relations of the Platinova reefs in the Skaergaard intrusion. The reefs comprise a strata-bound occurrence of Au + PGE estimated at 91 million tons of rock with 1.8 ppm Au and similar amounts
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a6871d505677d078b89ccaa7e0adbe2
https://doi.org/10.2113/gsecongeo.93.4.488
https://doi.org/10.2113/gsecongeo.93.4.488