干旱区生态环境知识资源中心(Arid): Diagenetic Environment of Sandstones from the Ermaying Formation (Middle Triassic), North-eastern Margin of the Ordos Basin, China: Implications for the Erosion Vulnerability of the Pi Sandstone

Arid

DOI	10.1088/1755-1315/221/1/012049
	Diagenetic Environment of Sandstones from the Ermaying Formation (Middle Triassic), North-eastern Margin of the Ordos Basin, China: Implications for the Erosion Vulnerability of the Pi Sandstone
	Liu, Li; Jiang, Yanan; Liu, Na; Yu, Lei; Bai, Hanggai; Jiang, Lingxu
通讯作者	Liu, L (corresponding author), Jilin Univ, Coll Earth Sci, Changchun 130061, Peoples R China.
会议名称	World Multidisciplinary Earth Sciences Symposium (WMESS)
会议日期	SEP 03-07, 2018
会议地点	Prague, CZECH REPUBLIC
英文摘要	A hard layer of calcite cemented sandstones overlaid weakly consolidated mudstones occur in the Middle Triassic, Ermaying Formation in the eastern margin of the Ordos Basin, China, were examined to reveal the diagenetic environment of Pi sandstone. The Pi sandstone refers to a type of terrigenous clastic rock assemblage composed mainly of sandstone, siltstone and mudstone with red and white color, which is characterized by exposing or being covered with sand or loess, vulnerable to weathering and erosion, distributed in the contiguous area of Shaanxi province, Inner Mongolia autonomous region and Shanxi province in China, and formed during Late Paleozoic-Mesozoic. The Pi comes from the folk name (pishuang) of arsenic in Chinese, the appellation of the Pi sandstone means that it is harmful to soil and water conservation. The Pi sandstone samples were collected from a sheet-like sandstones deposited in ephemeral river. Petrographic observation show that the samples studied carry a semi-arid climate signal, are cemented by mictrie (microcrystalline calcite), sparry (coarse-crystalline) calcite as well as quartz overgrowths. The delta C-13 and delta O-18 values of calcite in the studied are 6.2 to 3.8 parts per thousand PDB and from-10.2 to 8.9 parts per thousand PDB, respectively. The evidence from petrography and stable isotopes suggests that the cementation of the sandstone mainly occurred in the vadose - phreatic environment.
来源出版物	WORLD MULTIDISCIPLINARY EARTH SCIENCES SYMPOSIUM (WMESS 2018)
ISSN	1755-1307
出版年	2019
卷号	221
出版者	IOP PUBLISHING LTD
类型	Proceedings Paper
语种	英语
开放获取类型	gold
收录类别	CPCI-S
WOS记录号	WOS:000560708000049
WOS关键词	CARBONATE ; CEMENTS
WOS类目	Environmental Sciences ; Geology
WOS研究方向	Environmental Sciences & Ecology ; Geology
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/370044
作者单位	[Liu, Li; Jiang, Yanan; Liu, Na; Yu, Lei; Bai, Hanggai; Jiang, Lingxu] Jilin Univ, Coll Earth Sci, Changchun 130061, Peoples R China; [Jiang, Yanan] China Petr Logging CO LTD, Daqing Branch, Daqing 163412, Heilongjiang, Peoples R China; [Yu, Lei] UCL, Earth Sci, Gower St, London WC1E 6BT, England
推荐引用方式 GB/T 7714	Liu, Li,Jiang, Yanan,Liu, Na,et al. Diagenetic Environment of Sandstones from the Ermaying Formation (Middle Triassic), North-eastern Margin of the Ordos Basin, China: Implications for the Erosion Vulnerability of the Pi Sandstone[C]:IOP PUBLISHING LTD,2019.