首页> 外文期刊>South African Journal of Geology: Being the Transaction of the Geological Society of South African: Syndie die Verhandelinge van die Geologiese Vereniging van Suid-Afrika >Palynostratigraphic correlation of the Springbok Flats coalfield to other coal-bearing successions in the Karoo basins of southern Africa
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Palynostratigraphic correlation of the Springbok Flats coalfield to other coal-bearing successions in the Karoo basins of southern Africa

机译:春天平板煤田与南部非洲卡罗盆地其他煤轴承次成的帕诺斯图书馆相关性

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Strata of the Springbok Flats, Ellisras and Tshipise (Soutpansberg-Pafuri) basins of South Africa are considered to have been deposited contemporaneously with those of the main Karoo Basin (MKB), but lithological differences complicate precise correlation. In this study, palynofloras from recently drilled boreholes in the Springbok Flats Basin (SFB) are used to correlate the Springbok Flats coal zones with other southern African coal-bearing successions. Permian palaeoenvironments of the SFB are reconstructed through a combination of palynology, sedimentology, and coal petrology. The lower coal zone (LCZ) palynoflora best correlates with Palynozone K4 in the MKB (equivalent to the Witbank No. 4 seam, Vryheid Formation) and can also be associated with Biozone D of the Waterberg Coalfield (Ellisras Basin), and the Vereeniging top seam in the New Vaal Colliery, northern Karoo Basin. The upper coal zone (UCZ) palynoflora of the SFB correlates closely with the Gwembe Formation (mid-Zambezi Basin, Zambia), Biozone E of the Waterberg Coalfield (Ellisras Basin), and Biozone KK 3 (Kalahari Karoo Basin, Botswana). A new radioisotopically constrained palynozonation for the MKB allows relative ages to be assigned to the coal zones of the SFB: Kungurian for the LCZ, and Roadian for the UCZ. Palynology is a useful tool in correlating these economically important strata across southern Africa.
机译:春天公寓的地层,埃利斯拉斯罗斯和邓思(Soutpansberg-Pafuri)南非盆地被认为是与主要的卡卢盆地(MKB)一起存放的,但岩性差异复杂化了确切的相关性。在这项研究中,普伦诺洛斯在春天的蹦床盆地(SFB)中的最近钻孔孔(SFB)用于与其他南部非洲煤带次耦合相关。通过腭学,沉积学和煤层理的组合重建SFB的二叠纪古环境。下煤区(LCZ)Palynoflora与MKB中的Palynozone K4最佳相关(相当于Witbank No.4接缝,vryheid形成),并且也可以与水钻煤域(Ellisras Basin)的生物泽沸石D相关联,以及对vereeniging顶部的相关联缝制在北卡罗盆地新的Vaal煤炭中。 SFB的上部煤区(UCZ)Palynoflora与Gwembe地层(中Zambezi盆地,赞比亚),水钻煤田(Ellisras Basin)和Biozone Kk 3(Kalahari Karoo Basin,Botswana)的生物泽e密切相关。新的MKB的新放射性同然约束的野生宫允许分配给SFB的煤区:Kungurian为LCZ,以及UCZ的道路。 Palynology是一个有用的工具,在南部非洲之间关联这些经济上重要的地层。

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