Early Permian Karoo lithologies contain coal (Fig. 1). Most of the ''East African'' coals are preserved in ... Artinskian) to lower Baigendzhinian (mid-late Artins-
The Lower Karoo coal (k2–3) of the Mid-Zambezi basin, Zimbabwe: depositional analysis, coal genesis and palaeogeographic implications - ScienceDirect International Journal of Coal Geology Volume 61, Issues 1–2, …
Some K-Ar mineral dates (1100-1150 my) and a Rb-Sr whole-rock isochron age of 1355 +/- 28 my (Cahn and Snelling, 1984) establish an Irumide age for the northeastern segment, but a similar age for the southwestern segment is based on a single K-Ar muscovite date.
The study area, the Mid-Zambezi Basin, covers about 40 000 km2 and is situated in the northwestern part of Zimbabwe. Outcrops and suboutcrops of Early Permian Lower Karoo deposits occur between 17° Sand 18° 45' S and 26° E and 19° 30' E …
No marine source rocks have been identified. In the Mid-Zambezi area and Cabora Bassa basin, the source rocks are gas-prone, carbonaceous to coaly mudstones and coal of Lower Karoo age. In the Cabora Bassa basin, similar gas-prone source rocks occur in the Upper Karoo (Angwa Alternations Member).
The Lower Karoo in the Mid-Zambezi Basin (Zimbabwe) - Jochen Lepper - Google Books The Lower Karoo in the Mid-Zambezi Basin (Zimbabwe) Jochen Lepper Herausgegeben von der Bundesanstalt...
The Karoo Supergroup in southern Africa occurs in the areally extensive Main Karoo and Kalahari basins as well as in a number of subsidiary basins in South Africa, Namibia, Botswana, Zimbabwe and Mozambique. The Main Karoo basin constitutes a retro-arc foreland basin, while the rest are intracratonic sag basins or rift basins.
Palynological evidence for the age of the Permian Karoo coal deposits near Vereeniging, northern Orange Free State, South Africa B.D. Millsteed Geological Survey of South Africa, Private Bag X112, Pretoria 0001, Republic of South Africa ... ments, is developed between the lower and middle coal seams (Rossouw & Savage, 1961) and would therefore ...
The Lower Karoo coal (k2–3) of the Mid-Zambezi basin, Zimbabwe: depositional analysis, coal genesis and palaeogeographic implications P.M. Oesterlen, J. Lepper Pages 97-118 Download PDF Article preview Research articleFull text access Concentration and distribution of elements in Late Permian coals from western Guizhou Province, China
The No. 2 seam of Witbank Coalfield, Vryheid Formation of Main Karoo Basin (MacRae, 1988, Falcon, 1988, 1989 and Assemblage Zone-I of Mmamantswe, Botswana (Barbolini and Bamford, 2014) are...
The Triassic–Jurassic Upper Karoo Group of the Mid-Zambezi Basin (MZB; Zimbabwe) includes a thick succession of terrestrial sediments with high palaeontological potential that has been neglected since the 1970s.
changed the existing stratigraphy of Bond (1967) for the Lower Karoo of the Mid-Zambezi Valley by defining the Wankie Formation as constituted by the three members Lower Wankie Sandstone, Black Shale and Coal, and Upper Wankie Sandstone (Table 2). His argument was that these three units replace each other laterally.
The Lower Karoo coal (k2–3) of the Mid-Zambezi basin, Zimbabwe: Depositional analysis, coal genesis and palaeogeographic implications. International Journal of Coal Geology 61 ... Petrographic facies analysis of Lower and Middle Jurassic coal seams on the island of Bornholm, Denmark.
The late Palaeozoic coal-bearing Madzaringwe Formation of the Karoo Supergroup in the Tshipise-Pafuri Basin in the Limpopo Province, South Africa, records part of the infill of a passive continental margin terrain. Lithofacies analysis was performed with a view to deduce the nature of depositional environments of the Formation. …
The Lower Permian Gwembe Coal Formation has a maximum thickness of 280 m. It is underlain and overlain by the Siankondobo Sandstone and Madumabisa Mudstone formations, respectively.
Karoo rifting in westernTanzania: precursor ofGondwana break-up? 115 the so-calledFormation de transition, composed of brick-red sandstones and shales, conglomerates, and nodular limestones. This formation is trans gressive over the lower, coal-bearingbeds and lies on different layers of the Lukuga Group. This
Intensive lithological study and correlation of borehole records from the k2-3 coalfields or coal occurrences in the Mid-Zambezi basin led to the identification of two …
The Lower Karoo in the Mid-Zambesi Basin (Zimbabwe) Geologische Jahrbuch, B32 (1992), pp. 3-38. View in Scopus Google Scholar. MacRae, 1978. ... Palynological evidence for the age of the Permian Karoo coal deposits near Vereeniging, northern Orange Free State, South Africa. South African Journal Geology, 97 (1994), pp. …
The three formations constitute the Lower Karoo Group. The Gwembe Coal Formation represents fluvial deposition of sandstones, siltstones and mudstones in channels and on the floodplains. Fourteen lithofacies in the formation are grouped into four facies associations, namely Maamba Sandstone, Coal, Mudrock and Sandstone A facies.
Stratigraphic column of Lower Permian units in the Karoo Basin Province, South Africa and Lesotho, with the Vryheid Formation and the correlative Collingham, Whitehill, and Prince Albert Formations (modified from Hancox and Götz, 2014). Black horizontal lines are coal seams. Southern Karoo Basin Age Northeastern Basin Collingham Formation
International Journal of Coal Geology 61 (2005) 97 118 com/locate/ijcoalgeo. The Lower Karoo coal (k23) of the Mid-Zambezi basin, Zimbabwe: depositional analysis, coal genesis and palaeogeographic implications P.M. Oesterlena,*, J. Lepperb b. Girlitzpark 49, 30627 Hannover, Germany Nieders7chsisches Landesamt fur Bodenforschung, …
Samples of lower Karoo coal-bearingbeds from the Ruhuhu basin in South Tanzania (Fig. 2) have been analyzed by KREUSERet al.(1988) for qualifying the maturity of organic matter. They obtained Tmax values ranging between 430 and 440°C, vitrinite reflectance index Rc between 0.75 and 0.82%, and a proportion of volatile matter between 22 and 25%.
The Lower Karoo coal (k2–3) of the Mid-Zambezi basin, Zimbabwe: Depositional analysis, coal genesis and palaeogeographic implications. International Journal of Coal Geology 61(1–2), 97–118. Crossref. ISI. Google Scholar. Ottenjan K., Wolf M. and Wolf-Fischer E., 1981. Beziehurgen zwischen der fluorezenz von vitriniten und der ...
Here we examine one of the AngloGold seismic lines that was acquired in the middle of the Karoo Basin just south of Trompsburg extending to the southeast towards Molteno. This 150 km long line crosses the edge of the Kaapvaal Craton and shows clear reflectors throughout the Karoo Basin.
The Lower Karoo Group (Late Carboniferous to Permian age) consists of the basal Siankondobo Sandstone Formation, which comprises three facies, overlain by the Gwembe Coal Formation with its economically important coal deposits, in turn overlain by the Madumabisa Mudstone Formation which consists of lacustrine mudstone, calcilutite, …
The three formations constitute the Lower Karoo Group. The Gwembe Coal Formation represents fluvial deposition of sandstones, siltstones and mudstones in channels and on the floodplains....
The Lower Karoo Coal K Of The Mid Холбогдох мэдээлэл. When and how did the terrestrial mid-Permian mass · The Karoo Basin (approx. 600 000 km 2) was split into 10 sectors to account for lateral variation in stratigraphy (figure 2), within which fossil specimens occurring in the Abrahamskraal Formation and the Poortjie Member of the …
The Lower Karoo coal (k2–3) of the Mid-Zambezi basin, Zimbabwe: depositional analysis, coal genesis and palaeogeographic implications | Semantic …