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This volume also discusses the computer modelling of carbonate cycles and sequence analysis. This will prove an invaluable text for senior undergraduate and postgraduate students in the earth sciences in general and will also be of value to the professional researcher. Carbonate platforms contains contributions from an international authorship and the volume has been edited by one of the most respected names in the earth sciences. Areas covered include; early rifting deposition; examples from carbonate sequences of Sardinia (Cambrian) and Tuscany (Triassic-Jurassic), Italy; geometry and evolution of platform-margin bioclastic shoals, late Dinantian (Mississippian), Derbyshire, UK; cyclic sed...
The freshwater lacustrine environment of the Uteland Butte member of the lower Green River Formation in the eastern part of Utah’s Uinta Basin was correlated and mapped from outcrop to the subsurface using lithofacies and sequence-stratigraphic boundaries from four major flooding events. The study area extends from the outcrop on the western side of the Douglas Creek Arch, where lake-margin sediments occur, to cores from the Greater Natural Buttes natural gas field in central Uintah County, where sublittoral facies are predominant.
This volume presents a suite of detailed stratigraphic and sedimentologic investigations of the Eocene Green River Formation of Wyoming, Colorado and Utah, one of the world’s foremost terrestrial archives of lacustrine and alluvial deposition during the warmest portion of the early Cenozoic. Its twelve chapters encompass the rich and varied record of lacustrine stratigraphy, sedimentology, geochronology, geochemistry and paleontology. Chapters 2-9 provide detailed member-scale synthesis of Green River Formation strata within the Greater Green River, Fossil, Piceance Creek and Uinta Basins, while its final two chapters address its enigmatic evaporite deposits and ichnofossils at broad, interbasinal scale.
This memoir provides a thorough review of the geology of the rimmed Arabian Intrashelf Basin, reconciling differing interpretations of lithostratigraphy, sequence stratigraphy and biostratigraphy. Variation of energy levels and facies due to its setting in the SE palaeotradewind belt are described. The roles subtle tectonism played in developing the basin and in the Late Jurassic creating restriction by uplift and exposure of the Tethys shelf are evaluated. The intrashelf basin formed during rising sea level as a single rimmed carbonate intrashelf basin. A possible global cooling phase resulted in a lowstand which restricted the basin, resulting in petrographically unique carbonate source rock facies dominated by cyanobacterial deposition. Two subsequent 3rd order carbonate sequences largely filled the basin. Eustatic change concomitant with uplift of the Tethys shelf resulted in alternation of carbonates and evaporites (gypsum-anhydrite) across the region. The end result was a sealed intrashelf basin which preserved early-formed porosity and confined generated hydrocarbons within the intrashelf basin facies.
This first Congress to be held in the United States attracted more than 900geologists from 20countries, including for the first time official representatives of the People's Republic of China. Some highlights of this first of five volumes are a special lecture on the Carboniferous of China by Yang Shihpu, Wuhan College of Geology, China; a concise summary of the Tectonic evolution of the Iberian massif by Manuel Julivert, University of Barcelona, Spain; a short history of the founding of the Carboniferous System by W. H. C. Ramsbottom, Institute of Geological Sciences, Great Britain; an intensive look at world energy prospects for the next two decades by Philip H. Abelson, editor of Science; an outline of the geology of the Spanish Carboniferous coalfields by A. Garcia-Loygorri, Institute of Geology and Mining, Spain; and a novel treatment of detailed paleobotanical comparisons between west European coal basins and the Donetz Basin, USSR, by O. P. Fissunenko, Institute Pedagogique, Voroshilovgrad, USSR, and J. P. Leveine, Lille University, France.
Issue for 2000 includes also the abstracts of papers presented, in a separately-paged section.