Zobrazeno 1 - 10
of 44
pro vyhledávání: '"C. Kent Brooks"'
Autor:
C. Kent Brooks
Publikováno v:
Geological Survey of Denmark and Greenland Bulletin, Vol 24, Pp 1-96 (2011)
The Palaeogene North Atlantic Igneous Province is among the largest igneous provinces in the world and this review of the East Greenland sector includes large amounts of information amassed since previous reviews around 1990.The main area of igneous
Externí odkaz:
https://doaj.org/article/58218c0067504b0d8939676cf4426b37
Publikováno v:
Journal of Petrology. 60:1853-1880
Preferred and modelled bulk composition of the Skaergaard intrusion are compared to coeval basaltic compositions in East Greenland and found to relate to the second evolved cycle of Geikie Plateau Formation lavas and coeval Skaergaard-like dikes in m
Autor:
Urs Schaltegger, Joern Frederik Wotzlaw, H. Richard Naslund, Ilya N. Bindeman, C. Kent Brooks
Publikováno v:
Earth and Planetary Science Letters, Vol. 355-356 (2012) pp. 199-212
This paper presents a new high-precision zircon U–Pb geochronological view on the crystallization and assembly process of one of the most important and intensely studied intrusive bodies on Earth—the Skaergaard intrusion in East Greenland. With a
Publikováno v:
Lithos. 105:401-411
Forward modeling based on an experimental investigation successfully duplicated main features of the gabbros in the Skaergaard layered series [Thy, P., Lesher, C.E., Nielsen, T.F.D., and Brooks, C.K. 2006. Experimental constraints on the Skaergaard l
Publikováno v:
Journal of Petrology. 49:493-522
The Palaeogene Kangerlussuaq Intrusion (∼50 Ma) of East Greenland displays concentric zonation from quartz-rich nordmarkite (quartz syenite) at the margin, through pulaskite, to foyaite (nepheline syenite) in the centre; modal layering and igneous
Autor:
Chris Harris, Christian Tegner, Morten S. Riishuus, C. Kent Brooks, David W. Peate, J. Richard Wilson
Publikováno v:
Riishuus, M S, Harris, C, Peate, D W, Tegner, C, Wilson, J R & Brooks, C K 2015, ' Formation of low-δ 18 O magmas of the Kangerlussuaq Intrusion by addition of water derived from dehydration of foundered basaltic roof rocks ', Contributions to Mineralogy and Petrology, vol. 169, no. iss. 5,, Art.no. 41 . https://doi.org/10.1007/s00410-015-1134-7
The Kangerlussuaq Intrusion in East Greenland is concentrically zoned from quartz nordmarkite (quartz syenite) at the margin, through pulaskite, to foyaite (nepheline syenite) in the centre, with no apparent intrusive contacts. The δ18O values of co
Autor:
Morten S. Riishuus, David W. Peate, C. Kent Brooks, Chris Harris, J. Richard Wilson, Christian Tegner
Publikováno v:
Lithos. 92:276-299
We present new mineral and whole-rock compositions and Sr–Nd–Hf–Pb–O–H isotope data on samples from the Kangerlussuaq Alkaline Complex (∼ 1000 km2) in central East Greenland, part of the North Atlantic Igneous Province. This complex mainl
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
Publikováno v:
Economic Geology. 99:1215-1222
Precise Re-Os dating of molybdenite from the Malmbjerg and Flammefjeld rift-related porphyry molybdenum deposits indicates that they are among the youngest magmatic events (25.8 ± 0.1 and 39.7 ± 0.2 Ma) in their respective areas of the East Greenla
Publikováno v:
Contributions to Mineralogy and Petrology. 147:438-452
We present compositional data on a 1,250-m-thick sequence of sparsely porphyritic lavas that comprise the Geikie Plateau Formation, part of the ~55-Ma break-up-related flood basalts in East Greenland. Major element compositions are relatively restric