Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Leon R. M. Daniels"'
Publikováno v:
Mineralogy and Petrology. 112:767-774
The majority of the diamond mines in Botswana were discovered as a direct consequence of soil sampling for indicator minerals such as garnet and picroilmenite. Over the past 60 years the application of soil sampling for indicator minerals as a primar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a737f79fa8c7132769ba25d06d3d55e0
https://doi.org/10.1007/s00710-018-0608-5
https://doi.org/10.1007/s00710-018-0608-5
Publikováno v:
Contributions to Mineralogy and Petrology. 129:366-384
More than 99% of mineral inclusions in diamonds from the River Ranch pipe in the Late Archean Limpopo Mobile Belt (Zimbabwe), are phases of harzburgitic paragenesis, namely olivine (Fo92–93), orthopyroxene (Mg# = 93), G10 garnets and chromites. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca6a66c9006cd544af5776e8f672ea88
https://doi.org/10.1007/s004100050343
https://doi.org/10.1007/s004100050343
Publikováno v:
Nature. 379:153-156
RECENT studies of diamonds, inclusions in diamonds, and rock fragments from the Earth's mantle have shown the presence of minerals and rocks with a chemical composition that suggests a previous origin in the crust; presumably, this crustal material w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8543b06b9a2e27231f05ef52c992e3c
https://doi.org/10.1038/379153a0
https://doi.org/10.1038/379153a0
Autor:
John J. Gurney, Leon R. M. Daniels
Publikováno v:
Contributions to Mineralogy and Petrology. 108:154-161
Oxygen fugacities are calculated for olivine—spinel ±orthopyroxene assemblages recovered from diamonds and the concentrate of the Dokolwayo kimberlite, Swaziland. In addition thermobarometric oxygen fugacities are obtained for chrome spinel-garnet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cfae1fbf52dd9388da199db75d3d2db6
https://doi.org/10.1007/bf00307334
https://doi.org/10.1007/bf00307334
Publikováno v:
Applied Geochemistry. 6:477-494
In the past decade, the isotopic compositions of C in > 600 inclusion-bearing diamonds have been determined. Such analyses have revealed the following isotopic characteristics: (1) peridotitic diamonds, which typically contain garnet, chromite, olivi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59b8d0251838e6c93aab08958d06e203
https://doi.org/10.1016/0883-2927(91)90048-t
https://doi.org/10.1016/0883-2927(91)90048-t
Autor:
W. R. Taylor, A. Kleyenstueber, M. G. Kopylova, John J. Gurney, R. S. Rickard, Leon R. M. Daniels
Publikováno v:
International Kimberlite Conference Extended Abstracts 1995.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c96e961cf6c012c5edff43e40374a6b4
https://doi.org/10.29173/ikc1867
https://doi.org/10.29173/ikc1867
Publikováno v:
GEOCHEMICAL JOURNAL. 23:11-17
A rare kimberlite mantle xenolith displaying a direct contact relationship between a MARID rock and metasomatised peridotite is described. There is an abrupt textural transition from a MARID (phlogopite-K-richterite-diopside) portion, to a 2 cm rind
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::910a89a3fbdf3252de9b82248b01219f
https://doi.org/10.2343/geochemj.23.11
https://doi.org/10.2343/geochemj.23.11