Zobrazeno 1 - 10
of 59
pro vyhledávání: '"H. de Bruiyn"'
Publikováno v:
South African Journal of Geology. 123:117-128
The Verena Granite forms part of the Palaeoproterozoic Lebowa Granite Suite of the Bushveld Complex and was named after the village of Verena in the Mpumalanga Province of South Africa. It occurs over an area of ~600 km2 and is intrusive into the Roo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4c43f2961eb510eac36563d511232b8
https://doi.org/10.25131/sajg.123.0007
https://doi.org/10.25131/sajg.123.0007
Publikováno v:
Journal of African Earth Sciences. 45:213-235
The tholeiitic group of intrusions that occurs in the core and collar rocks of the Vredefort dome comprises three related intrusions, namely the Wittekopjes norite, the Parsons Rust dolerite-norite and the Reebokkop dolerite. The texture of these int
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec1cf240f76a9f278f4bd3f13a1919fc
https://doi.org/10.1016/j.jafrearsci.2006.03.001
https://doi.org/10.1016/j.jafrearsci.2006.03.001
Publikováno v:
South African Journal of Geology. 108:187-198
Hydrothermally altered and mineralised lavas of the ~2.7 Ga Ventersdorp Supergroup were sampled at two localities near Douglas (Kalkdam and Katlani). Propylitic alteration has affected some of the lavas (the dark coloured amygdaloidal type), while ot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdd39d34f8ea8603da0db94726b5d469
https://doi.org/10.2113/108.2.187
https://doi.org/10.2113/108.2.187
Publikováno v:
South African Journal of Geology. 108:173-186
The volcaniclastic sediments and nephelinite lavas of the Mashikiri Formation, Lebombo Group, have been well documented in the Pafuri region and in the Sabi region, Zimbabwe. The well-exposed section along the Olifants River in the Kruger National Pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46653cf32ee0425973b776ab80c687fa
https://doi.org/10.2113/108.2.173
https://doi.org/10.2113/108.2.173
Autor:
M.J Cunningham, P.G. Eriksson, Octavian Catuneanu, Adam John Bumby, J Lindsay, W.A. van der Westhuizen, D.R. Nelson, Kent C. Condie, Wladyslaw Altermann, H. de Bruiyn, R. van der Merwe
Publikováno v:
Journal of Geodynamics. 34:207-247
The 2714–2709 Ma Ventersdorp Supergroup overlies Mesoarchaean basement rocks and sedimentary strata of the Neoarchaean Witwatersrand Supergroup. The latter basin was inverted by tectonic shortening and suffered the loss of up to 1.5 km of stratigra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2456d6c54f7ea7b0b95072a9fb9a51db
https://doi.org/10.1016/s0264-3707(02)00022-4
https://doi.org/10.1016/s0264-3707(02)00022-4
Publikováno v:
South African Journal of Geology. 105:75-92
The Allanridge Formation of the Ventersdorp Supergroup in the Northern Cape Province consists of andesite to basaltic andesite. The properties of these rocks are described by aid of detail from two localities near Douglas (Kalkdam and Katlani), where
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::871b5030b57d5d3847f5d8d044d5f656
https://doi.org/10.2113/1050075
https://doi.org/10.2113/1050075
Publikováno v:
Journal of African Earth Sciences. 31:657-668
A basalt flow in the Katse area of Lesotho displays composite features with tholeiitic characteristics along its margins and a picritic composition in the centre. Geochemical modelling of the magma and the composition of microscopic melt inclusions i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad07774a11a7e0b2ce007e8b21abaea1
https://doi.org/10.1016/s0899-5362(00)80013-5
https://doi.org/10.1016/s0899-5362(00)80013-5
Autor:
H. de Bruiyn, W.A. van der Westhuizen
Publikováno v:
Precambrian Research. 101:341-351
The Late Archaean Ventersdorp Supergroup in South Africa constitutes a supracrustal succession consisting of mafic lava at the base that is overlain by a clastic wedge deposit, known as the Kameeldoorns Formation, which formed in grabens that were th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4e78a768671ba5f140e1407c6f9dcd3
https://doi.org/10.1016/s0301-9268(99)00094-7
https://doi.org/10.1016/s0301-9268(99)00094-7
Publikováno v:
Mineralium Deposita. 32:410-418
An undulating sheet-like granodiorite body is intrusive into sedimentary rocks and dolerite of the Karoo Supergroup north of Cradock. The top of this sheet, where in contact with dolerite, is characterised by the presence of graphite containing nodul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2c3ce4cac10654b85ad7dd79c34defe
https://doi.org/10.1007/s001260050107
https://doi.org/10.1007/s001260050107
Publikováno v:
Lithos. 32:63-76
Two distinct groups of granites can be recognized among the late plutons of the Barberton Mountain Land. Discrimination between the two groups is provided by geochemical and mineralogical parameters which are considered to reflect the source material
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d36521ae9c8ab56f84095ff33d9cdfde
https://doi.org/10.1016/0024-4937(94)90021-3
https://doi.org/10.1016/0024-4937(94)90021-3