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pro vyhledávání: '"R. H. Boer"'
Autor:
J. R. Graney, L. J. Robb, Stephen E. Kesler, Torsten Vennemann, Franz Michael Meyer, R. H. Boer
Publikováno v:
Economic Geology. 90:860-876
We describe here a different class of mesothermal gold deposit at Sabie-Pilgrim's Rest which is probably associated with the Bushveld igneous event in South Africa. Pressure and temperature estimates indicate that the ore fluids of the Sable-Pilgrim'
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d0e2ae10873a31a3bb8e182ae87debe
https://doi.org/10.2113/gsecongeo.90.4.860
https://doi.org/10.2113/gsecongeo.90.4.860
Publikováno v:
Chemical Geology. 104:93-98
Precipitates of hieratite, ralstonite and NaUZr2F12 form during HFHNO3HClO4 dissolution of dolerite samples. These minerals are responsible for fractionation of Sm and Nd from the solution, giving rise to spurious analytical results. Fractionat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83c4a7e4587ddcabdb8b82ce37977b16
https://doi.org/10.1016/0009-2541(93)90144-8
https://doi.org/10.1016/0009-2541(93)90144-8
Akademický článek
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Autor:
R. H. Boer, Beda A. Hofmann, O. Engster, S. Niedermann, Y. Z. Liu, L. Bruno, Wolf Uwe Reimold, Urs Krähenbühl, Jan Kramers, Ch. Thalmann, Robert Frei
Publikováno v:
University of Copenhagen
Journal of Geophysical Research
Journal of Geophysical Research
We present determinations of the noble gas and Pb isotopic abundances and of K, Th, and U concentrations of native gold. Our results demonstrate that gold is an excellent carrier for crustal volatiles, but direct dating of gold using the U, Th-4He, 4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::beb15a3aeb0daf3b21cd3cae34cb597d
https://curis.ku.dk/portal/en/publications/noble-gases-k-u-th-and-pb-in-native-gold(8c544470-0d6e-11de-8478-000ea68e967b).html
https://curis.ku.dk/portal/en/publications/noble-gases-k-u-th-and-pb-in-native-gold(8c544470-0d6e-11de-8478-000ea68e967b).html
