globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2016.11.051
论文题名:
Late Artinskian–Early Kungurian (Early Permian) warming and maximum marine flooding in the East Gondwana interior rift, Timor and Western Australia, and comparisons across East Gondwana
作者: Haig D.W.; Mory A.J.; McCartain E.; Backhouse J.; Håkansson E.; Ernst A.; Nicoll R.S.; Shi G.R.; Bevan J.C.; Davydov V.I.; Hunter A.W.; Keep M.; Martin S.K.; Peyrot D.; Kossavaya O.; Santos Z.D.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2017
卷: 468
起始页码: 88
结束页码: 121
语种: 英语
英文关键词: Byro Group ; Carynginia Formation ; Cribas Group ; East Gondwana rift ; Maubisse Group ; Noonkanbah Formation ; Permian climate
英文摘要: Substantial new information is presented on upper Artinskian–Kungurian deposits in Timor-Leste and in the Canning, Southern Carnarvon and northern Perth basins of Western Australia. These basins, situated between about 35°S and 55°S palaeolatitude, formed part of the East Gondwana interior rift, a precursor to the rift that 100 my later formed the Indian Ocean in this region. Timor lay near the main axis of the East Gondwana interior rift, whereas the Western Australian basins were marginal splays from the rift axis. The main depocentres developed as a result of faulting that was initiated during the Late Pennsylvanian. Detailed lithostratigraphic and biostratigraphic analyses have been made on the newly recognized Bua-bai limestone and the type Cribas Group in Timor, the Noonkanbah Formation in the Canning Basin, the Byro Group in the Merlinleigh Sub-basin of the Southern Carnarvon Basin, and the Carynginia Formation in the northern Perth Basin. In Timor the succession, which is highly disrupted by faulting, was deposited under open-marine conditions probably in a shelf–basin setting. Restricted, very shallow-water seas flooded the Canning Basin and the Merlinleigh–Byro–Irwin sub-basins of the Southern Carnarvon and northern Perth basins and had highly variable oxygen levels and salinities typical of estuarine environments. A similar pattern of warming and bathymetric change is recognized in all studied basins. During the early part of the late Artinskian cool conditions prevailed, with water temperatures 0–4 °C forming sea ice in the Merlinleigh–Byro–Irwin rift. Rapid warming during the latter part of the late Artinskian was accompanied by maximum marine flooding close to the Artinskian–Kungurian boundary. Climatic and bathymetric conditions then allowed carbonate mounds, with larger fusulines and a variety of algae, to develop in the northern part of the rift system, and Tubiphytes, conodonts, and brachiopods with Tethyan affinities to migrate into the marginal-rift basins despite the generally adverse water quality at these depositional sites. Comparison between the stratigraphic record from the East Gondwana interior rift and coeval records from Lhasa and Sibumasu indicate a similar pattern of climate change during the Carboniferous to end Cisuralian. Similar trends probably are present in Eastern Australia although there is confusion over the correlation of some units. © 2016
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67983
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作者单位: Centre for Energy Geoscience, School of Earth and Environment (M004), The University of Western Australia, 35 Stirling Highway, Crawley, WA, Australia; School of Earth and Environment (M004), The University of Western Australia, 35 Stirling Highway, Crawley, WA, Australia; Geological Survey of Western Australia, Department of Mines and Petroleum, 100 Plain St, East Perth, WA, Australia; Institut für Geologie, Universität Hamburg, Bundesstrasse 55, Hamburg, Germany; Geoscience Australia, GPO Box 378, Canberra, ACT, Australia; School of Life and Environmental Sciences, Deakin University, 221 Burwood Highway, Burwood, Victoria, Australia; Permian Research Institute, Boise State University, 1910 University Drive, Boise, ID, United States; Department of Applied Geology, Curtin University, GPO Box U1987, Perth, WA, Australia; Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge, United Kingdom; Western Australian Museum, 49 Kew Street, Welshpool, WA, Australia; All Russian Geological Research Institute, Stredny pr., 74, St. Petersburg, Russian Federation; TIMOR GAP E.P., Level 3, Timor Plaza, Suite 301–314, Rua Presidente Nicolao Lobato, Comoro, P.O. Box No. 003, Dili, Timor Leste

Recommended Citation:
Haig D.W.,Mory A.J.,McCartain E.,et al. Late Artinskian–Early Kungurian (Early Permian) warming and maximum marine flooding in the East Gondwana interior rift, Timor and Western Australia, and comparisons across East Gondwana[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2017-01-01,468
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