Zobrazeno 1 - 10
of 23
pro vyhledávání: '"M.Y. Krebs"'
Publikováno v:
Chemical Geology. 523:42-58
Trace element characteristics of rubies from the Aappaluttoq deposit, SW Greenland, were measured using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), laser ablation - inductively coupled plasma-time of flight-mass spectrome
Autor:
Masahiko Honda, D. Howell, Suzette Timmerman, M.Y. Krebs, D. Graham Pearson, Hanling Yeow, Sarah Woodland, Trevor Ireland, Janaína N. Ávila, A. Lynton Jaques
Publikováno v:
Chemical Geology. 515:22-36
The physical characteristics and impermeability of diamonds allow them to retain radiogenic 4He produced in-situ from radioactive decay of U, Th and Sm. This study investigates the U-Th/He systematics of fibrous diamonds and provides a first step in
Publikováno v:
Minerals, Vol 10, Iss 447, p 447 (2020)
Minerals
Volume 10
Issue 5
Minerals
Volume 10
Issue 5
The geographic origin of gem corundum has emerged as one of its major value factors. Combined with gemological observations, trace element analysis is a powerful tool for the determination of corundum provenance. However, owing to similar properties
Publikováno v:
International Kimberlite Conference Extended Abstracts: 2017.
Autor:
M.Y. Krebs, S. J. Woodland, F. Laiginhas, D.G. Pearson, J. Kong, Thomas Stachel, Ingrid L. Chinn
Publikováno v:
Lithos, 2019, Vol.324-325, pp.356-370 [Peer Reviewed Journal]
Quantitative trace element data from high-purity gem diamonds from the Victor Mine, Ontario, Canada as well as near-gem diamonds from peridotite and eclogite xenoliths from the Finsch and Newlands mines, South Africa, acquired using an off-line laser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83d0caf0d383501117d2815375ad58f0
http://dro.dur.ac.uk/26857/1/26857.pdf
http://dro.dur.ac.uk/26857/1/26857.pdf
Ten individual gem-quality monocrystalline diamonds of known peridotite/eclogite paragenesis from Southern Africa (Koffiefontein, Letlhakane, Orapa) were studied for trace element concentrations and He and Ar abundances and isotopic compositions. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4a4cd00616c5d17d78d9331d247d98b
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Publikováno v:
Economic Geology. 111:503-525
First predictions of the macrodiamond grade of newly discovered kimberlites are commonly obtained using size frequency distributions of microdiamonds. The success of this approach suggests a common origin of microdiamonds and macrodiamonds, an implic
Publikováno v:
Geological Society of America Abstracts with Programs.