Download or read book Depositional Environment and Coal Petrography of Permian Coal Deposits in Karoo Basins of SW Tanzania written by Pascal Z. Semkiwa and published by . This book was released on 1992 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Depositional environment and coal petrography of permian coal deposits in the Karoo basins of South West Tanzania written by Pascal Z. Semkiwa and published by . This book was released on 1992 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Depositional Environment and Coal Petrography of Permian Coal Deposits in Karoo Basins of SW Tansania written by Pascal Z. Semikiwa and published by . This book was released on 1992 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Depositional Environment of Late Permian Karoo Beds in the Ruhuhu Basin and Mikumi Area of Tanzania written by Charles Z. Kaaya and published by . This book was released on 1992 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Late Paleozoic Glacial Events and Postglacial Transgressions in Gondwana written by Oscar R. López-Gamundí and published by Geological Society of America. This book was released on 2010 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Permian Coal and Palaeogeography of Gondwana written by R. P. Langford and published by . This book was released on 1992 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Coal bearing Depositional Systems written by C. F. K. Diessel and published by Springer. This book was released on 1992 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The author presents examples of coal deposits two different continents: from the European Carboniferous and the Permian Gondwana sequence of Australia. The organic and petrographic composition of the coal content of palaeo-environmentally well defined groups of sediments allow the discrimination of two coal facies indices as suitable indicators for distinct settings. Combining the analytical methods of coal petrography, sedimentology and sequence stratigraphy an integrated view of coal formation is attained."--

Download or read book Journal of African Earth Sciences written by and published by . This book was released on 2002 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Palaeozoic Climate Cycles written by A. Gąsiewicz and published by Geological Society of London. This book was released on 2014-02-03 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents results of a variety of case studies documenting the Late Palaeozoic climate changes and cyclicity of deposition. The collected papers cover many aspects related to palaeoenvironmental analysis with sedimentological, stratigraphic, palaeobiological, geochemical, and palaeomagnetic studies of the fossil record around the Late Palaeozoic Ice Age and soon after. They span a stratigraphic interval from Carboniferous to Permian–Triassic transition around the world. This book comprising results for a range of disciplines, is a valuable source for not only researchers who are actively working on specific aspects of the Late Palaeozoic and looking for an up-to-date reference on this inhospitable time in the Earth’s history. It is also of interest to climate modellers and the wider scientific community with an interest in the latest research on the decline of the Palaeozoic World.

Download or read book Hydrocarbon Habitat in Rift Basins written by J. J. Lambiase and published by Geological Society of America. This book was released on 1995 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environments of Coal Deposition Papers Presented at a Symposium by the Coal Geology Division of The Geological Society of America at the Annual Meeting Miami Beach Florida 1964 written by Edward Charles Dapples and published by Geological Society of America. This book was released on 1969 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Permo Triassic Coal bearing Deposits of the Karoo Basin Southern Africa written by and published by . This book was released on 1990 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Palaeoenvironmental and Palaeoclimatic Reconstruction of the Witbank Coal Deposits Karoo Basin South Africa written by Alexander Thomas Wheeler and published by . This book was released on 2015 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal deposits serve as important archives of palaeoclimate change. Palynomorph assemblages reflect the composition of the parent plant communities which are in turn controlled by the local environment and regional climate. Palynofacies can also be used to further interpret the depositional environment and transport mechanisms. In Main Karoo Basin, the Permian Ecca Group hosts economically important coal deposits within the Witbank and Highveld Coalfields. The most significant deposits are located in the Artinskian/Kungurian-aged No. 2 Coal Seam. The post-glacial fluvio-deltaic deposits represent an important shift in climate in the early Permian. Palynological samples from boreholes of the Witbank Coalfield were analyzed to reconstruct the palaeoenvironment and palaeoclimate signature recorded in palynomorph assemblages and palynofacies patterns of the No. 2 Coal Seam. For comparison additional samples from boreholes of the adjacent Highveld Coalfield were analyzed with respect to distinguish between local and regional signatures. The No. 2 Coal Seam is divided into an Upper Coal Seam and a Lower Coal Seam by a sandstone/siltstone marker bed but this does not extend laterally across the full extent of both basins. The palaeoenvironment is generally swamp-dominated in the Lower Coal Seam but fluctuates between swamp-dominated and lake/pond-dominated in the Upper Coal Seam. There are differences on a local scale which are controlled by the climate and topography. The palynofacies and intraseam partings in the Witbank Coalfield indicate a highly proximal depositional environment and a more distal depositional environment in the Highveld Coalfield. The vegetation in the Lower Coal Seam is dominated by conifers in the upland and ferns in the lowland with Cordaites occupying the higher valleys. In the Upper Coal Seam the Carboniferous/Permian vegetation is replaced by a more diverse glossopteris-gangamopteris-dominated flora. The climate signal as indicated by the pollen-producing plants is a shift from a stable cold climate in the Lower Coal Seam to a fluctuating cool-temperate climate in the Upper Coal Seam. This change in the climate is caused by the movement of Gondwana northwards and away from the South Pole during the Permian.

Download or read book Permian Coal Geology written by P. W. Gascombe and published by . This book was released on 1976 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sonderver ffentlichungen des Geologischen Instituts der Universit t K ln written by Universität zu Köln. Geologisches Institut and published by . This book was released on 1997 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Africa Geoscience Review written by and published by . This book was released on 1994 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Late Glacial and Postglacial Environmental Changes written by Ireneo Peter Martini and published by Oxford University Press, USA. This book was released on 1997 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book of contributed papers reconstructs events following the major Paleozoic glaciation, using as analog events during the last 18,000 years. The detailed analysis of present environments aids in understanding what triggered the ancient deglaciations; conversely, the study of the ancient geological record helps to identify factors that influence global environmental change. The syntheses and analyses of Quaternary and older glacial products and events foster a better understanding of those periods in which rapid climatic and environmental changes occurred, and they constitute a ready source of information for analyzing other ancient geological records or constructing models for possible future changes.