Results 151 to 160 of about 1,366 (193)

The Sinian–Cambrian boundary of China and its related problems

open access: yesGeological Magazine, 1984
AbstractThe 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
core   +3 more sources

Geochemical Characteristics of Sinian Manganese Deposits in China

Acta Geologica Sinica, 2000
Abstract  Sinian is one of the main periods of the formation of manganese deposits in China. Sinian manganese deposits are mainly hosted in carbon‐rich black shale and siliceous shale formed during the Sinian interglacial period. The composition of manganese ore is simple. The main ore mineral is manganiferous carbonates.
ZHU Kaijun, YAO Guolong
exaly   +2 more sources

Lithofacies paleogeography and exploration significance of Sinian Doushantuo depositional stage in the middle-upper Yangtze region, Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2019
In recent years, natural gas exploration in the Sinian Dengying Formation and shale gas exploration in Doushantuo Formation have made major breakthroughs in the Sichuan Basin and its adjacent areas.
Zecheng Wang   +2 more
exaly   +2 more sources

On the upper Precambrian (Sinian Suberathem) in China

Precambrian Research, 1981
Abstract This paper gives a general outline of the Upper Precambrian (Sinian Suberathem) in China, including its geographic distribution, development, stratigraphic sequence and classification. The Sinian Suberathem, with a time range of 1950-615 Ma, constitutes the greater part of the Proterozoic.
Chen Jinbiao   +3 more
openaire   +1 more source

Sinian glacial deposits in Xinjiang, Northwest China

Precambrian Research, 1985
Abstract Three levels of Sinian glaciogenic deposits are widespread in Xinjiang in northwestern China. Two of these are assigned to the lower Sinian and one to the upper Sinian. There is also some evidence for an older, fourth glacial episode. Continental, transitional and marine glacial deposits have been recognised; within these depositional ...
null Gao Zhenjia, null Qian Jianxin
openaire   +1 more source

Integrated Ediacaran (Sinian) chronostratigraphy of South China

Palaeogeography, Palaeoclimatology, Palaeoecology, 2007
Abstract The Ediacaran Period was a critical time in the history of life and Earth. Understanding the complex interactions between geological and biological events during this interval requires high-resolution chronostratigraphy. Thanks to its uniquely favorable palaeogeographic setting, South China is an ideal region for constructing a framework for
Maoyan Zhu, Junming Zhang, Aihua Yang
openaire   +1 more source

Sinian

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.
openaire   +1 more source

How Ibn Sinian Is Suhrawardi's Theory of Knowledge?

Philosophy East and West, 2003
It is demonstrated here that despite apparent differences and their adherence to two different schools of thought, Suhrawardi's epistemology is essentially Ibn Sinian, and even his theory of "knowledge by Presence" ('ilm al-huduri), which is considered to be uniquely his, is at least inspired by Ibn Sina.
openaire   +1 more source

Sinian microfossils from south-west China

Nature, 1981
The microfossil assemblages described here are preserved in cherts from the Yunnan Province, south-west China. They are the first chert-facies microfossils to be discovered in the Wangjiawan and Meishucun stratigraphical sequences which are regarded by the International Cambrian/Precambrian Boundary Working Group1 as possible ‘candidates’ for the ...
openaire   +1 more source

Biomarkers of Upper Sinian cyanobacterial dolostones in southwest China

Journal of Southeast Asian Earth Sciences, 1991
Abstract In the present paper, eight core samples of cyanobacterial dolostone from the Dengying Formation (Sinian) of the Weiyuan Gas Field, Sichuan, southwest China, have been studied organically and geochemically. It has been shown that the following biomarker compound exist.
Fan Pu, Meng Qianxiang, Yu Xinke
openaire   +1 more source

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