Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Karsten Secher"'
Autor:
Jochen Kolb, Diogo R. N. Rosa, Nynke Keulen, Karsten Secher, Agnete Steenfelt, Jakob K. Keiding, Bo Møller Stensgaard
Publikováno v:
Ore Geology Reviews. 78:493-555
Greenland is the largest island on Earth, with 80% of its area covered by a thick ice sheet. The coastal areas are underlain by variable rocks ranging from Eoarchean to the most recent ages. Greenland has a mineral exploration tradition since its col
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87f49228cc50058092669af9c921ddc1
https://doi.org/10.1016/j.oregeorev.2016.03.006
https://doi.org/10.1016/j.oregeorev.2016.03.006
Publikováno v:
ResearcherID
With the recent discovery of the giant, deeply eroded, 3 Ga Maniitsoq impact structure in southern West Greenland (Garde 2010), an enigmatic, c. 75 by 15 km large, curvilinear belt of undeformed norite intrusions with Ni-Cu mineralisation was re-inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ff10cc0766f1d7d1e0cc75cc3752e20
https://doi.org/10.34194/geusb.v28.4722
https://doi.org/10.34194/geusb.v28.4722
Publikováno v:
Lithos. 112:358-371
A regional study of dike and sill occurrences of kimberlitic rocks in terms of xenolith and megacryst assemblages from the diamond province in southern West Greenland demonstrates very systematic variation in the composition of melts across the margi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::061b579ccf5e444c390f37155d11fcaf
https://doi.org/10.1016/j.lithos.2009.05.035
https://doi.org/10.1016/j.lithos.2009.05.035
Autor:
Robert A. Creaser, Sven Monrad Jensen, Frands Schjøth, Larry M. Heaman, Karsten Secher, Troels F.D. Nielsen
Publikováno v:
Lithos. 112:400-406
The timing and duration of kimberlite and related magmatism in southern West Greenland have been investigated by determining precise U–Pb perovskite/pyrochlore and Rb–Sr phlogopite ages for 37 samples collected in the Sisimiut, Sarfartoq and Mani
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b161ef4e37d10508d24bf9285057fc28
https://doi.org/10.1016/j.lithos.2009.04.035
https://doi.org/10.1016/j.lithos.2009.04.035
Publikováno v:
Geological Survey of Denmark and Greenland Bulletin. 11:101-114
Pb-isotopic data for magnetite from amphibolites in the Nagssugtoqidian orogen, central West Greenland, have been used to trace their source characteristics and the timing of metamorphism. Analyses of the magnetite define a Pb-Pb isochron age of 1726
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46115f946a7bde834547d9d297d7c8ec
https://doi.org/10.34194/geusb.v11.4919
https://doi.org/10.34194/geusb.v11.4919
Publikováno v:
Geological Survey of Denmark and Greenland Bulletin. 10:41-44
Ultrabasic alkaline magmatic rocks are products of melts generated deep within or at the base of the lithospheric mantle. The magmas may reach the surface to form lavas and pyroclastic deposits; alternatively they crystallise at depth to form dykes o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61cbadbe1c64907d92098c756a9076ac
https://doi.org/10.34194/geusb.v10.4905
https://doi.org/10.34194/geusb.v10.4905
Archetypal kimberlite from the Maniitsoq region, southern West Greenland and analogy to South Africa
Publikováno v:
Geological Survey of Denmark and Greenland Bulletin. 10:45-48
Ultramafic dyke rocks with kimberlitic megacrysts and mantle nodules have been known for decades from the northern part of the Archaean block and adjacent Proterozoic terranes in southern West Greenland (Fig. 1; Escher & Watterson 1973; Goff 1973; Sc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::186940862e1c1e62c297cb55d665fa8d
https://doi.org/10.34194/geusb.v10.4906
https://doi.org/10.34194/geusb.v10.4906
Publikováno v:
Rocks & Minerals. 81:200-205
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c100e49208ac24fbaa9c11b622fee81f
https://doi.org/10.3200/rmin.81.3.200-205
https://doi.org/10.3200/rmin.81.3.200-205
Autor:
Sven Monrad Jensen, Karsten Secher
Publikováno v:
Geological Survey of Denmark and Greenland Bulletin. 4:69-72
Southern West Greenland hosts a province of ultramafic alkaline rocks, including swarms of dykes traditionally described as kimberlites and lamproites (Larsen 1991; Jensen et al. 2002). Since the mid-1990s, commercial diamond exploration has been foc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1969784ec2b166ec338c47530de9235a
https://doi.org/10.34194/geusb.v4.4788
https://doi.org/10.34194/geusb.v4.4788