Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Gerhard von Gruenewaldt"'
Publikováno v:
Research Evaluation. 9:27-36
The Foundation for Research Development (FRD) in South Africa has for the last 15 years developed and applied a unique research evaluation and rating system in the fields of the natural sciences, engineering and technology. A multi-dimensional, multi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c4746478c47e5d582f9d0b32644e844
https://doi.org/10.3152/147154400781777395
https://doi.org/10.3152/147154400781777395
Publikováno v:
Journal of African Earth Sciences. 20:77-89
This paper describes several types of mineralization from the upper part of the Bushveld complex as well as the processes leading to their formation. Vanadium and Ti-bearing magnetite layers, which occur throughout the entire Upper Zone of the intrus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7198578ab4ab1b5ce12cbab3fd922cbd
https://doi.org/10.1016/0899-5362(95)00034-q
https://doi.org/10.1016/0899-5362(95)00034-q
Publikováno v:
European Journal of Mineralogy. 3:451-466
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba4853121e6693c61dc7c0e807895b8d
https://doi.org/10.1127/ejm/3/2/0451
https://doi.org/10.1127/ejm/3/2/0451
Publikováno v:
Economic Geology. 85:1777-1789
Analytical data for the platinum-group elements (PGE) and gold on 17 samples from sulfide-mineralized and -unmineralized rocks of the lower portion of the upper zone and two samples from the main zone of the eastern Bushveld Complex are presented. Al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::edb26f8985b9d8777a8e37beedd6843c
https://doi.org/10.2113/gsecongeo.85.8.1777
https://doi.org/10.2113/gsecongeo.85.8.1777
Autor:
Gerhard Von Gruenewaldt, J. H. Strydom
Publikováno v:
Economic Geology. 80:1201-1211
Geochemical investigations of a series of boreholes drilled perpendicular to the plunge of two mineralized pipes has revealed the presence of well-developed halos of tracer elements. This is important for underground exploration as efforts to date ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4aebb1c04d4fae12994a622f61fd11f8
https://doi.org/10.2113/gsecongeo.80.4.1201
https://doi.org/10.2113/gsecongeo.80.4.1201
Publikováno v:
Contributions to Mineralogy and Petrology. 65:11-18
Electron microprobe analyses of Ca-poor pyroxenes in gabbroic rocks of the Main Zone of the Bushveld Complex reveal that inverted pigeonites have lower Mg/Fe ratios than coexisting hypersthenes. Textural relationships, however, indicate that the two
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::251ca2dba010acc40126b78454ee153d
https://doi.org/10.1007/bf00373565
https://doi.org/10.1007/bf00373565
Publikováno v:
Economic Geology. 77:1296-1306
The lower zone of the Potgietersrus limb of the Bushveld Complex consists of a succession of ultramafic rocks, at least 1,600 m thick, that can be subdivided into 37 cyclic units. Ni, Cu, and Pt mineralization is developed at two levels in the sequen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afe55721ff92cf3312a4588acae9b8fe
https://doi.org/10.2113/gsecongeo.77.6.1296
https://doi.org/10.2113/gsecongeo.77.6.1296
Publikováno v:
Economic Geology. 81:1067-1079
New and recently published platinum-group element data of chromite-rich layers in the Bushveld Complex are evaluated. Chondrite-normalized platinum-group element plots of these data show that trends for chromitite layers differ from that of the Meren
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7ace1b3c76a33dcbadf00804b55e3f9
https://doi.org/10.2113/gsecongeo.81.5.1067
https://doi.org/10.2113/gsecongeo.81.5.1067
Publikováno v:
Economic Geology. 80:1049-1061
A systematic investigation of the exsolution textures in titanomagnetite grains of massive magnetite layers and their associated host rocks from the entire upper zone sequence has revealed noticeable differences that can be related to changes in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e75eafc321bd18938473fe1b58197c7b
https://doi.org/10.2113/gsecongeo.80.4.1049
https://doi.org/10.2113/gsecongeo.80.4.1049
Publikováno v:
Economic Geology. 80:803-812
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fefe1367268892a2c71cdcac8346dea9
https://doi.org/10.2113/gsecongeo.80.4.803
https://doi.org/10.2113/gsecongeo.80.4.803