Zobrazeno 1 - 10
of 71
pro vyhledávání: '"A. B. Kampunzu"'
Autor:
G. Tshoso, Charles Aubourg, Ali B Kampunzu, Jérôme Dyment, H. Bertrand, M. Modisi, Jean-Jacques Tiercelin, B. Le Gall
Publikováno v:
Journal of Volcanology and Geothermal Research
Journal of Volcanology and Geothermal Research, Elsevier, 2008, 170 (3-4), pp.247-261. ⟨10.1016/j.jvolgeores.2007.10.013⟩
Journal of Volcanology and Geothermal Research, 2008, 170 (3-4), pp.247-261. ⟨10.1016/j.jvolgeores.2007.10.013⟩
Journal of Volcanology and Geothermal Research, Elsevier, 2008, 170 (3-4), pp.247-261. ⟨10.1016/j.jvolgeores.2007.10.013⟩
Journal of Volcanology and Geothermal Research, 2008, 170 (3-4), pp.247-261. ⟨10.1016/j.jvolgeores.2007.10.013⟩
International audience; To determine the magma flow direction of the giant, 179 Ma Okavango dyke swarm of northern Botswana, we measured the anisotropy of magnetic susceptibility (AMS) of 23 dykes. Dykes are located in two sections (Shashe and Thune
Publikováno v:
Journal of African Earth Sciences. 48:199-221
Geo-chemical analyses of duricrusts from the margins of the Moshaweng dry valleys (Kalahari, central Botswana) was undertaken mainly to provide a diagnostic basis for palaeo-environmental conditions and to help stimulate the development of a worldwid
Autor:
Baraka D. Kinabo, Daniel D. Wheaton, Estella A. Atekwana, Ali B Kampunzu, John P. Hogan, M.P. Modisi
Publikováno v:
Journal of African Earth Sciences. 48:125-136
Aeromagnetic and gravity data collected across the Okavango rift zone, northwest Botswana are used to map the distribution of faults, provide insights into the two-dimensional shallow subsurface geometry of the rift, and evaluate models for basin for
Publikováno v:
Gondwana Research. 11:432-447
The Neoproterozoic Katangan Supergroup comprises a thick sedimentary rock succession subdivided into the Roan, Nguba, and Kundelungu Groups, from bottom to top. Deposition of both Nguba and Kundelungu Groups began with diamictites, the Mwale/Grand Co
Publikováno v:
Gondwana Research. 11:414-431
Rocks of the Neoproterozoic Mwashya Subgroup (former Upper Mwashya) form the uppermost sedimentary unit of the Roan Group. Based on new field and drill hole observations, the Mwashya is subdivided into three formations: (1) Kamoya, characterized by d
Autor:
Richard Armstrong, Takamoto Okudaira, Joseph W. Kokonyangi, Makoto Arima, Masaru Yoshida, Ali B Kampunzu
Publikováno v:
The Journal of Geology. 115:99-113
The Kibaran Supergroup, a >3000‐km‐long belt of metasedimentary and igneous rocks in the southeastern Congo, is in a critical location between the Congo Craton (sensu stricto) and the Tanzania‐Bangweulu Block. Understanding its tectonic evoluti
Publikováno v:
Journal of African Earth Sciences. 46:253-262
The Okwa Basement Complex crops out at the northwestern edge of the Kaapvaal craton within the Okwa Inlier, an isolated exposure of Precambrian basement in the Kalahari Desert. New U–Pb zircon dating was performed on all the major Palaeoproterozoic
Autor:
Masaru Yoshida, D.A. Ngulube, Richard Armstrong, Joseph W. Kokonyangi, Makato Arima, Ali B Kampunzu, Takamoto Okudaira
Publikováno v:
Journal of African Earth Sciences. 46:1-35
Five representative key regions from the NE–SW-trending Mesoproterozoic Kibaride belt of SE Congo are described. Although the present database is still insufficient for a definitive reconstruction of the tectonic setting, available data suggest tha
Autor:
R.P. Hall, Roger Key, Richard E. Hanson, D. Bullen, J. A. Pancake, Wulf A. Gose, Ali B Kampunzu, Joshua Mukwakwami, Emily K. Seidel, Hubert Munyanyiwa, R. E. Harmer, Ian W. D. Dalziel, S. E. Ward, Thomas G. Blenkinsop
Publikováno v:
Journal of African Earth Sciences. 46:141-167
The Kalahari Craton was initially stabilized following cessation of Palaeoproterozoic orogenesis in southern Africa at ca. 1.8 Ga. Subsequent Mesoproterozoic intraplate magmatism at ca. 1.4–1.35 Ga formed a series of alkaline and carbonatitic compl
Publikováno v:
Journal of African Earth Sciences. 46:112-140
Two main Mesoproterozoic provinces occur in southern Namibia: (1) The high-grade Namaqua Metamorphic Complex (NMC) composed of a supracrustal sedimentary succession and interpreted as a passive margin sequence in the west of the Kalahari craton; (2)