Organic matter origin and accumulation in tuffaceous shale of the lower Permian Lucaogou Formation, Jimsar Sag

The Jimsar Sag is an important shale oil exploration target area in the Junggar Basin, northwestern China. The lower Permian Lucaogou Formation, with a thickness of 200–300 m, is composed of thin tuffite, tuffaceous dolomite, mudstone and siltstone, and is the primary exploration target. A comprehen...
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Gespeichert in:

Autor*in:	Ding, Xiujian [verfasserIn] Qu, Jiangxiu [verfasserIn] Imin, Ablimit [verfasserIn] Zha, Ming [verfasserIn] Su, Yang [verfasserIn] Jiang, Zhongfa [verfasserIn] Jiang, Hang [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2019

Schlagwörter:	Tuffaceous shale Volcanic ash Organic matter origin Organic matter accumulation Lucaogou formation

Übergeordnetes Werk:	Enthalten in: Journal of petroleum science and engineering - Amsterdam [u.a.] : Elsevier Science, 1987, 179, Seite 696-706
Übergeordnetes Werk:	volume:179 ; pages:696-706

DOI / URN:	10.1016/j.petrol.2019.05.004

Katalog-ID:	ELV002373076

Internformat


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520			\|a The Jimsar Sag is an important shale oil exploration target area in the Junggar Basin, northwestern China. The lower Permian Lucaogou Formation, with a thickness of 200–300 m, is composed of thin tuffite, tuffaceous dolomite, mudstone and siltstone, and is the primary exploration target. A comprehensive analysis is conducted on the bulk and molecular geochemical characteristics of the tuffaceous shale, to define the organic matter origin, depositional environment and organic matter accumulation. The key features of the tuffaceous shale extracts are short-to long-chain n-alkanes, a range of Pr/Ph ratio values (0.80–1.42), a relatively high content of C29 steranes and a moderate content of gammacerane, showing that the redox state ranged from oxic to anoxic and that the water salinity conditions varied from fresh to brackish. And the high content of cyanobacteria is the primary cause of the high abundance of β-carotane and C29 sterane. It appears that volcanic ash did not change the redox condition of depositional environment. Considering that volcanic ash-bearing sediments usually have relatively high β-carotane and C29 sterane content, and previous studies have pointed out that volcanic ash can stimulate phytoplankton and promote productivity in modern sediments, we could speculated volcanic ash may release mineral ions such as iron, and then stimulated cyanobacteria, which was the main cause of organic matter accumulation in the tuffaceous shale of the Jimsar Sag.
650		4	\|a Tuffaceous shale
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650		4	\|a Organic matter origin
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650		4	\|a Lucaogou formation
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700	1		\|a Su, Yang \|e verfasserin \|4 aut
700	1		\|a Jiang, Zhongfa \|e verfasserin \|4 aut
700	1		\|a Jiang, Hang \|e verfasserin \|4 aut
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publishDate	2019
allfields	10.1016/j.petrol.2019.05.004 doi (DE-627)ELV002373076 (ELSEVIER)S0920-4105(19)30458-9 DE-627 ger DE-627 rda eng 660 DE-600 38.51 bkl 57.36 bkl Ding, Xiujian verfasserin aut Organic matter origin and accumulation in tuffaceous shale of the lower Permian Lucaogou Formation, Jimsar Sag 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The Jimsar Sag is an important shale oil exploration target area in the Junggar Basin, northwestern China. The lower Permian Lucaogou Formation, with a thickness of 200–300 m, is composed of thin tuffite, tuffaceous dolomite, mudstone and siltstone, and is the primary exploration target. A comprehensive analysis is conducted on the bulk and molecular geochemical characteristics of the tuffaceous shale, to define the organic matter origin, depositional environment and organic matter accumulation. The key features of the tuffaceous shale extracts are short-to long-chain n-alkanes, a range of Pr/Ph ratio values (0.80–1.42), a relatively high content of C29 steranes and a moderate content of gammacerane, showing that the redox state ranged from oxic to anoxic and that the water salinity conditions varied from fresh to brackish. And the high content of cyanobacteria is the primary cause of the high abundance of β-carotane and C29 sterane. It appears that volcanic ash did not change the redox condition of depositional environment. Considering that volcanic ash-bearing sediments usually have relatively high β-carotane and C29 sterane content, and previous studies have pointed out that volcanic ash can stimulate phytoplankton and promote productivity in modern sediments, we could speculated volcanic ash may release mineral ions such as iron, and then stimulated cyanobacteria, which was the main cause of organic matter accumulation in the tuffaceous shale of the Jimsar Sag. Tuffaceous shale Volcanic ash Organic matter origin Organic matter accumulation Lucaogou formation Qu, Jiangxiu verfasserin aut Imin, Ablimit verfasserin aut Zha, Ming verfasserin aut Su, Yang verfasserin aut Jiang, Zhongfa verfasserin aut Jiang, Hang verfasserin aut Enthalten in Journal of petroleum science and engineering Amsterdam [u.a.] : Elsevier Science, 1987 179, Seite 696-706 Online-Ressource (DE-627)303393076 (DE-600)1494872-2 (DE-576)259484024 nnns volume:179 pages:696-706 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.51 Geologie fossiler Brennstoffe 57.36 Erdölgewinnung Erdgasgewinnung AR 179 696-706
spelling	10.1016/j.petrol.2019.05.004 doi (DE-627)ELV002373076 (ELSEVIER)S0920-4105(19)30458-9 DE-627 ger DE-627 rda eng 660 DE-600 38.51 bkl 57.36 bkl Ding, Xiujian verfasserin aut Organic matter origin and accumulation in tuffaceous shale of the lower Permian Lucaogou Formation, Jimsar Sag 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The Jimsar Sag is an important shale oil exploration target area in the Junggar Basin, northwestern China. The lower Permian Lucaogou Formation, with a thickness of 200–300 m, is composed of thin tuffite, tuffaceous dolomite, mudstone and siltstone, and is the primary exploration target. A comprehensive analysis is conducted on the bulk and molecular geochemical characteristics of the tuffaceous shale, to define the organic matter origin, depositional environment and organic matter accumulation. The key features of the tuffaceous shale extracts are short-to long-chain n-alkanes, a range of Pr/Ph ratio values (0.80–1.42), a relatively high content of C29 steranes and a moderate content of gammacerane, showing that the redox state ranged from oxic to anoxic and that the water salinity conditions varied from fresh to brackish. And the high content of cyanobacteria is the primary cause of the high abundance of β-carotane and C29 sterane. It appears that volcanic ash did not change the redox condition of depositional environment. Considering that volcanic ash-bearing sediments usually have relatively high β-carotane and C29 sterane content, and previous studies have pointed out that volcanic ash can stimulate phytoplankton and promote productivity in modern sediments, we could speculated volcanic ash may release mineral ions such as iron, and then stimulated cyanobacteria, which was the main cause of organic matter accumulation in the tuffaceous shale of the Jimsar Sag. Tuffaceous shale Volcanic ash Organic matter origin Organic matter accumulation Lucaogou formation Qu, Jiangxiu verfasserin aut Imin, Ablimit verfasserin aut Zha, Ming verfasserin aut Su, Yang verfasserin aut Jiang, Zhongfa verfasserin aut Jiang, Hang verfasserin aut Enthalten in Journal of petroleum science and engineering Amsterdam [u.a.] : Elsevier Science, 1987 179, Seite 696-706 Online-Ressource (DE-627)303393076 (DE-600)1494872-2 (DE-576)259484024 nnns volume:179 pages:696-706 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.51 Geologie fossiler Brennstoffe 57.36 Erdölgewinnung Erdgasgewinnung AR 179 696-706
allfields_unstemmed	10.1016/j.petrol.2019.05.004 doi (DE-627)ELV002373076 (ELSEVIER)S0920-4105(19)30458-9 DE-627 ger DE-627 rda eng 660 DE-600 38.51 bkl 57.36 bkl Ding, Xiujian verfasserin aut Organic matter origin and accumulation in tuffaceous shale of the lower Permian Lucaogou Formation, Jimsar Sag 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The Jimsar Sag is an important shale oil exploration target area in the Junggar Basin, northwestern China. The lower Permian Lucaogou Formation, with a thickness of 200–300 m, is composed of thin tuffite, tuffaceous dolomite, mudstone and siltstone, and is the primary exploration target. A comprehensive analysis is conducted on the bulk and molecular geochemical characteristics of the tuffaceous shale, to define the organic matter origin, depositional environment and organic matter accumulation. The key features of the tuffaceous shale extracts are short-to long-chain n-alkanes, a range of Pr/Ph ratio values (0.80–1.42), a relatively high content of C29 steranes and a moderate content of gammacerane, showing that the redox state ranged from oxic to anoxic and that the water salinity conditions varied from fresh to brackish. And the high content of cyanobacteria is the primary cause of the high abundance of β-carotane and C29 sterane. It appears that volcanic ash did not change the redox condition of depositional environment. Considering that volcanic ash-bearing sediments usually have relatively high β-carotane and C29 sterane content, and previous studies have pointed out that volcanic ash can stimulate phytoplankton and promote productivity in modern sediments, we could speculated volcanic ash may release mineral ions such as iron, and then stimulated cyanobacteria, which was the main cause of organic matter accumulation in the tuffaceous shale of the Jimsar Sag. Tuffaceous shale Volcanic ash Organic matter origin Organic matter accumulation Lucaogou formation Qu, Jiangxiu verfasserin aut Imin, Ablimit verfasserin aut Zha, Ming verfasserin aut Su, Yang verfasserin aut Jiang, Zhongfa verfasserin aut Jiang, Hang verfasserin aut Enthalten in Journal of petroleum science and engineering Amsterdam [u.a.] : Elsevier Science, 1987 179, Seite 696-706 Online-Ressource (DE-627)303393076 (DE-600)1494872-2 (DE-576)259484024 nnns volume:179 pages:696-706 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.51 Geologie fossiler Brennstoffe 57.36 Erdölgewinnung Erdgasgewinnung AR 179 696-706
allfieldsGer	10.1016/j.petrol.2019.05.004 doi (DE-627)ELV002373076 (ELSEVIER)S0920-4105(19)30458-9 DE-627 ger DE-627 rda eng 660 DE-600 38.51 bkl 57.36 bkl Ding, Xiujian verfasserin aut Organic matter origin and accumulation in tuffaceous shale of the lower Permian Lucaogou Formation, Jimsar Sag 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The Jimsar Sag is an important shale oil exploration target area in the Junggar Basin, northwestern China. The lower Permian Lucaogou Formation, with a thickness of 200–300 m, is composed of thin tuffite, tuffaceous dolomite, mudstone and siltstone, and is the primary exploration target. A comprehensive analysis is conducted on the bulk and molecular geochemical characteristics of the tuffaceous shale, to define the organic matter origin, depositional environment and organic matter accumulation. The key features of the tuffaceous shale extracts are short-to long-chain n-alkanes, a range of Pr/Ph ratio values (0.80–1.42), a relatively high content of C29 steranes and a moderate content of gammacerane, showing that the redox state ranged from oxic to anoxic and that the water salinity conditions varied from fresh to brackish. And the high content of cyanobacteria is the primary cause of the high abundance of β-carotane and C29 sterane. It appears that volcanic ash did not change the redox condition of depositional environment. Considering that volcanic ash-bearing sediments usually have relatively high β-carotane and C29 sterane content, and previous studies have pointed out that volcanic ash can stimulate phytoplankton and promote productivity in modern sediments, we could speculated volcanic ash may release mineral ions such as iron, and then stimulated cyanobacteria, which was the main cause of organic matter accumulation in the tuffaceous shale of the Jimsar Sag. Tuffaceous shale Volcanic ash Organic matter origin Organic matter accumulation Lucaogou formation Qu, Jiangxiu verfasserin aut Imin, Ablimit verfasserin aut Zha, Ming verfasserin aut Su, Yang verfasserin aut Jiang, Zhongfa verfasserin aut Jiang, Hang verfasserin aut Enthalten in Journal of petroleum science and engineering Amsterdam [u.a.] : Elsevier Science, 1987 179, Seite 696-706 Online-Ressource (DE-627)303393076 (DE-600)1494872-2 (DE-576)259484024 nnns volume:179 pages:696-706 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.51 Geologie fossiler Brennstoffe 57.36 Erdölgewinnung Erdgasgewinnung AR 179 696-706
allfieldsSound	10.1016/j.petrol.2019.05.004 doi (DE-627)ELV002373076 (ELSEVIER)S0920-4105(19)30458-9 DE-627 ger DE-627 rda eng 660 DE-600 38.51 bkl 57.36 bkl Ding, Xiujian verfasserin aut Organic matter origin and accumulation in tuffaceous shale of the lower Permian Lucaogou Formation, Jimsar Sag 2019 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The Jimsar Sag is an important shale oil exploration target area in the Junggar Basin, northwestern China. The lower Permian Lucaogou Formation, with a thickness of 200–300 m, is composed of thin tuffite, tuffaceous dolomite, mudstone and siltstone, and is the primary exploration target. A comprehensive analysis is conducted on the bulk and molecular geochemical characteristics of the tuffaceous shale, to define the organic matter origin, depositional environment and organic matter accumulation. The key features of the tuffaceous shale extracts are short-to long-chain n-alkanes, a range of Pr/Ph ratio values (0.80–1.42), a relatively high content of C29 steranes and a moderate content of gammacerane, showing that the redox state ranged from oxic to anoxic and that the water salinity conditions varied from fresh to brackish. And the high content of cyanobacteria is the primary cause of the high abundance of β-carotane and C29 sterane. It appears that volcanic ash did not change the redox condition of depositional environment. Considering that volcanic ash-bearing sediments usually have relatively high β-carotane and C29 sterane content, and previous studies have pointed out that volcanic ash can stimulate phytoplankton and promote productivity in modern sediments, we could speculated volcanic ash may release mineral ions such as iron, and then stimulated cyanobacteria, which was the main cause of organic matter accumulation in the tuffaceous shale of the Jimsar Sag. Tuffaceous shale Volcanic ash Organic matter origin Organic matter accumulation Lucaogou formation Qu, Jiangxiu verfasserin aut Imin, Ablimit verfasserin aut Zha, Ming verfasserin aut Su, Yang verfasserin aut Jiang, Zhongfa verfasserin aut Jiang, Hang verfasserin aut Enthalten in Journal of petroleum science and engineering Amsterdam [u.a.] : Elsevier Science, 1987 179, Seite 696-706 Online-Ressource (DE-627)303393076 (DE-600)1494872-2 (DE-576)259484024 nnns volume:179 pages:696-706 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA SSG-OPC-GGO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.51 Geologie fossiler Brennstoffe 57.36 Erdölgewinnung Erdgasgewinnung AR 179 696-706
language	English
source	Enthalten in Journal of petroleum science and engineering 179, Seite 696-706 volume:179 pages:696-706
sourceStr	Enthalten in Journal of petroleum science and engineering 179, Seite 696-706 volume:179 pages:696-706
format_phy_str_mv	Article
bklname	Geologie fossiler Brennstoffe Erdölgewinnung Erdgasgewinnung
institution	findex.gbv.de
topic_facet	Tuffaceous shale Volcanic ash Organic matter origin Organic matter accumulation Lucaogou formation
dewey-raw	660
isfreeaccess_bool	false
container_title	Journal of petroleum science and engineering
authorswithroles_txt_mv	Ding, Xiujian @@aut@@ Qu, Jiangxiu @@aut@@ Imin, Ablimit @@aut@@ Zha, Ming @@aut@@ Su, Yang @@aut@@ Jiang, Zhongfa @@aut@@ Jiang, Hang @@aut@@
publishDateDaySort_date	2019-01-01T00:00:00Z
hierarchy_top_id	303393076
dewey-sort	3660
id	ELV002373076
language_de	englisch
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author	Ding, Xiujian
spellingShingle	Ding, Xiujian ddc 660 bkl 38.51 bkl 57.36 misc Tuffaceous shale misc Volcanic ash misc Organic matter origin misc Organic matter accumulation misc Lucaogou formation Organic matter origin and accumulation in tuffaceous shale of the lower Permian Lucaogou Formation, Jimsar Sag
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topic_title	660 DE-600 38.51 bkl 57.36 bkl Organic matter origin and accumulation in tuffaceous shale of the lower Permian Lucaogou Formation, Jimsar Sag Tuffaceous shale Volcanic ash Organic matter origin Organic matter accumulation Lucaogou formation
topic	ddc 660 bkl 38.51 bkl 57.36 misc Tuffaceous shale misc Volcanic ash misc Organic matter origin misc Organic matter accumulation misc Lucaogou formation
topic_unstemmed	ddc 660 bkl 38.51 bkl 57.36 misc Tuffaceous shale misc Volcanic ash misc Organic matter origin misc Organic matter accumulation misc Lucaogou formation
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title	Organic matter origin and accumulation in tuffaceous shale of the lower Permian Lucaogou Formation, Jimsar Sag
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title_full	Organic matter origin and accumulation in tuffaceous shale of the lower Permian Lucaogou Formation, Jimsar Sag
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title_sort	organic matter origin and accumulation in tuffaceous shale of the lower permian lucaogou formation, jimsar sag
title_auth	Organic matter origin and accumulation in tuffaceous shale of the lower Permian Lucaogou Formation, Jimsar Sag
abstract	The Jimsar Sag is an important shale oil exploration target area in the Junggar Basin, northwestern China. The lower Permian Lucaogou Formation, with a thickness of 200–300 m, is composed of thin tuffite, tuffaceous dolomite, mudstone and siltstone, and is the primary exploration target. A comprehensive analysis is conducted on the bulk and molecular geochemical characteristics of the tuffaceous shale, to define the organic matter origin, depositional environment and organic matter accumulation. The key features of the tuffaceous shale extracts are short-to long-chain n-alkanes, a range of Pr/Ph ratio values (0.80–1.42), a relatively high content of C29 steranes and a moderate content of gammacerane, showing that the redox state ranged from oxic to anoxic and that the water salinity conditions varied from fresh to brackish. And the high content of cyanobacteria is the primary cause of the high abundance of β-carotane and C29 sterane. It appears that volcanic ash did not change the redox condition of depositional environment. Considering that volcanic ash-bearing sediments usually have relatively high β-carotane and C29 sterane content, and previous studies have pointed out that volcanic ash can stimulate phytoplankton and promote productivity in modern sediments, we could speculated volcanic ash may release mineral ions such as iron, and then stimulated cyanobacteria, which was the main cause of organic matter accumulation in the tuffaceous shale of the Jimsar Sag.
abstractGer	The Jimsar Sag is an important shale oil exploration target area in the Junggar Basin, northwestern China. The lower Permian Lucaogou Formation, with a thickness of 200–300 m, is composed of thin tuffite, tuffaceous dolomite, mudstone and siltstone, and is the primary exploration target. A comprehensive analysis is conducted on the bulk and molecular geochemical characteristics of the tuffaceous shale, to define the organic matter origin, depositional environment and organic matter accumulation. The key features of the tuffaceous shale extracts are short-to long-chain n-alkanes, a range of Pr/Ph ratio values (0.80–1.42), a relatively high content of C29 steranes and a moderate content of gammacerane, showing that the redox state ranged from oxic to anoxic and that the water salinity conditions varied from fresh to brackish. And the high content of cyanobacteria is the primary cause of the high abundance of β-carotane and C29 sterane. It appears that volcanic ash did not change the redox condition of depositional environment. Considering that volcanic ash-bearing sediments usually have relatively high β-carotane and C29 sterane content, and previous studies have pointed out that volcanic ash can stimulate phytoplankton and promote productivity in modern sediments, we could speculated volcanic ash may release mineral ions such as iron, and then stimulated cyanobacteria, which was the main cause of organic matter accumulation in the tuffaceous shale of the Jimsar Sag.
abstract_unstemmed	The Jimsar Sag is an important shale oil exploration target area in the Junggar Basin, northwestern China. The lower Permian Lucaogou Formation, with a thickness of 200–300 m, is composed of thin tuffite, tuffaceous dolomite, mudstone and siltstone, and is the primary exploration target. A comprehensive analysis is conducted on the bulk and molecular geochemical characteristics of the tuffaceous shale, to define the organic matter origin, depositional environment and organic matter accumulation. The key features of the tuffaceous shale extracts are short-to long-chain n-alkanes, a range of Pr/Ph ratio values (0.80–1.42), a relatively high content of C29 steranes and a moderate content of gammacerane, showing that the redox state ranged from oxic to anoxic and that the water salinity conditions varied from fresh to brackish. And the high content of cyanobacteria is the primary cause of the high abundance of β-carotane and C29 sterane. It appears that volcanic ash did not change the redox condition of depositional environment. Considering that volcanic ash-bearing sediments usually have relatively high β-carotane and C29 sterane content, and previous studies have pointed out that volcanic ash can stimulate phytoplankton and promote productivity in modern sediments, we could speculated volcanic ash may release mineral ions such as iron, and then stimulated cyanobacteria, which was the main cause of organic matter accumulation in the tuffaceous shale of the Jimsar Sag.
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title_short	Organic matter origin and accumulation in tuffaceous shale of the lower Permian Lucaogou Formation, Jimsar Sag
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author2	Qu, Jiangxiu Imin, Ablimit Zha, Ming Su, Yang Jiang, Zhongfa Jiang, Hang
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up_date	2024-07-07T00:30:46.238Z
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Organic matter origin and accumulation in tuffaceous shale of the lower Permian Lucaogou Formation, Jimsar Sag

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