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Ediacaran seawater temperature: Evidence from inclusions of Sinian halite
Precambrian Research, 2011Abstract Seawater temperatures throughout Earth's history have been suggested to illustrate a long-term cooling trend from nearly 70 °C at ∼3500 Ma to around 20 °C at ∼800 Ma. The terminal Neoproterozoic prior to the “Cambrian Explosion” is a key interval in evolutionary history, as complex multicellularity appeared with the advent of the Ediacara ...
Fanwei Meng +6 more
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1994
Abstract Despite the complete sequence and widespread distribution of diversified Sinian sediments within China, the research on Sinian metazoan fossils in China has been a weak link all along, which partly hinders the study of the Sinian system.
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Abstract Despite the complete sequence and widespread distribution of diversified Sinian sediments within China, the research on Sinian metazoan fossils in China has been a weak link all along, which partly hinders the study of the Sinian system.
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Sinian paleomagnetic results from the Tarim block, western China
Precambrian Research, 1991Abstract A Sinian (latest Precambrian) section composed of shallow marine carbonates, nonmarine clastics, tillites and minor volcanic rocks, is exposed in Wushi, along the northwestern margin of the Tarim block of China. Paleomagnetic results from this section reveal at least six geomagnetic field reversals.
Yianping Li +4 more
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Precambrian microfossils from the Sinian of South China
Nature, 1981The discovery of previously unknown microfossils from the Sinian of western Hubei Province, South China (Fig. 1) is reported here. The Sinian there, up to 1,000 m thick, is naturally divisible into four formations (Fig. 2) from the base upwards: (1) the Liantuo Formation comprising feldspar–quartz–sandstones with basal conglomerates; (2) the Nantuo ...
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Sinian ice ages and glacial sedimentary facies-areas in China
Precambrian Research, 1985Abstract Glacial rocks of the Sinian period are widespread in China. On the bases of stratigraphy and geochronology three Sinian ice ages can be discerned. In ascending order these are the Gucheng, Nantuo and Luoquan ice ages. The Gucheng and Nantuo ice ages are assigned to the Lower Sinian (740-700 Ma) and the Luoquan ice age is tentatively placed ...
null Lu Songnian +3 more
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The Sinian–Cambrian boundary of China and its related problems
Geological Magazine, 1984AbstractThe Sinian and Cambrian systems within the Yangtze stratigraphic province represent continuous deposits, and the strata above and below the Sinian–Cambrian boundary are rich in fossils. From all the relevant boundary sections, the Meishucun section in Jinning County, Yunnan Province serves as the stratotype section for the Sinian–Cambrian ...
Xing Yusheng +4 more
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Sedimentary geochemistry of Sinian strata in Jixian Region, North China
Geochemistry, 1982Sinian strata (isotopic ages ranging from 1,900–850 m.y.) in Jixian County and its vicinity have been studied in more detail from the viewpoint of sedimentary geochemistry. Average chemical composition of various sedimentary rocks in the Sinian sequence (sandstone, siltstone, shale, dolomite and limestone) has been calculated.
Delian Fan +5 more
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Medusoid Fossils from the Sinian Xingmincun Formation of Southern Liaoning Province
Acta Geologica Sinica - English Edition, 1989Abstract Abundant medusoid soft‐bodied metazoan fossils have been found in the Sinian Xingmincun Formation (with an isotopic age of 650 Ma) at Qipanmo, Qidingshan and Yangtun of the Dalian‐Jinzhou area, southern Liaoning Province; in addition, a number of macroscopic algal fossils have been discovered for the first time in the Getun Formation overlying
Hong Zuomin +6 more
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Coccoid microfossils from the Doushantuo Formation (late Sinian) of South China
Precambrian Research, 1985Abstract Eight categories of organic-walled coccoid microfossils in the c. 700-Ma-old Doushantuo Formation are described and named. Of these, one genus and species (Paratetraphycus giganteus) is new. Most of the microfossils are interpreted as being the remains of the Chroococcaceae and are morphologically comparable to those of the 650-Ma-old Yudoma
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Geological models of ice keel scours, with an early sinian example
Precambrian Research, 1992Abstract Ice-keel turbate is widespread on recent continental shelves. The surface morphology of modern ice keel scours is well-known but their subsurface structures are not well studied. In the geological record ice keel scours are rare and no data on their subsurface structures from pre-Pleistocene glacial sediments exist.
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