IGGCAS OpenIR  > 岩石圈演化国家重点实验室
Direct Rubidium-Strontium Dating of Hydrocarbon Charge Using Small Authigenic Illitic Clay Aliquots from the Silurian Bituminous Sandstone in the Tarim Basin, NW China
Li, Shaojie1,2; Wang, Xuan-Ce2,3,4; Li, Chao-Feng5; Wilde, Simon A.1,2; Zhang, Youyu6; Golding, Suzanne D.4; Liu, Keyu7; Zhang, Yuxiang8
2019-08-29
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume9Pages:13
AbstractIllitic clay is ubiquitous in clastic hydrocarbon reservoirs, and the host for several radiometric isotopes such as the potassium-argon (K-Ar) and rubidium-strontium (Rb-Sr) systems. This study applied the isotope-dilution thermal ionization mass spectrometry technique for small samples (3-4 mg) to conduct illite Rb-Sr isotope dating of five illitic clay samples from the Silurian bituminous sandstone (SBS) intersected by five drillholes in the Tarim Basin, NW China. The Rb-87/Sr-86 ratio of clays is fractionated mainly by the addition of Rb during the illitization of mixed-layer illite/smectite (I/S), which is the dominant clay species in the Tarim Basin samples. The subsample-scale Rb/Sr isotope values suggest that each subsample may contain I/S particles of slightly variable degrees of illitization. Three of the analyzed samples (H6, KQ1 and TZ67) generated Rb-Sr isochron ages of 141 +/- 61 Ma, 332 +/- 32 Ma and 235 +/- 8 Ma (errors quoted at 2 sigma), respectively. These results are similar to the corresponding K-Ar ages (125 Ma, 389 Ma and 234 Ma). The isotopic ages are consistent with the timing of hydrocarbon charge which varies in different drillholes as constrained by basin modelling, indicating that a closed-system behavior is attained by the hydrocarbon charge that inhibits the illitization of I/S. The Rb-Sr isotope analyses of the other two samples (YM35-1 and Q1) that did not yield isochron ages suggest the conditions for producing isochrons were not satisfied, which may be caused by disturbance of the isotope system by a post-charge hydrothermal event. The outcomes of this study show the robust potential of Rb-Sr clay subsample geochronology for cross-checking isotopic ages yielded by other systems (e.g. K-Ar system) and constraining the timing of hydrocarbon charge.
DOI10.1038/s41598-019-48988-3
Funding OrganizationScience Foundation of Chang'an University ; Science Foundation of Chang'an University ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Science Foundation of Chang'an University ; Science Foundation of Chang'an University ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Science Foundation of Chang'an University ; Science Foundation of Chang'an University ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Science Foundation of Chang'an University ; Science Foundation of Chang'an University ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
WOS KeywordRB-SR SYSTEMATICS ; K-AR ; DIAGENETIC ILLITE ; PETROLEUM EMPLACEMENT ; ORDOVICIAN CARBONATES ; FLUID INCLUSIONS ; TABEI UPLIFT ; OIL-FIELD ; SMECTITE ; ACCUMULATION
Language英语
Funding ProjectScience Foundation of Chang'an University[310827163412] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010401]
Funding OrganizationScience Foundation of Chang'an University ; Science Foundation of Chang'an University ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Science Foundation of Chang'an University ; Science Foundation of Chang'an University ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Science Foundation of Chang'an University ; Science Foundation of Chang'an University ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Science Foundation of Chang'an University ; Science Foundation of Chang'an University ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000483017100044
PublisherNATURE PUBLISHING GROUP
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/93591
Collection岩石圈演化国家重点实验室
Corresponding AuthorWang, Xuan-Ce
Affiliation1.Curtin Univ, Sch Earth & Planetary Sci, Inst Geosci Res TIGeR, Perth, WA 6845, Australia
2.Yunnan Univ, Res Ctr Earth Syst Sci, Kunming 650500, Yunnan, Peoples R China
3.Changan Univ, Sch Earth Sci & Resources, Xian 710054, Shaanxi, Peoples R China
4.Univ Queensland, Sch Earth & Environm Sci, Brisbane, Qld 4072, Australia
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
6.PetroChina, Key Lab Basin Struct & Hydrocarbon Accumulat, Beijing 100083, Peoples R China
7.China Univ Petr, Sch Geosci, Qingdao 266555, Shandong, Peoples R China
8.ARES, Perth, WA, Australia
Recommended Citation
GB/T 7714
Li, Shaojie,Wang, Xuan-Ce,Li, Chao-Feng,et al. Direct Rubidium-Strontium Dating of Hydrocarbon Charge Using Small Authigenic Illitic Clay Aliquots from the Silurian Bituminous Sandstone in the Tarim Basin, NW China[J]. SCIENTIFIC REPORTS,2019,9:13.
APA Li, Shaojie.,Wang, Xuan-Ce.,Li, Chao-Feng.,Wilde, Simon A..,Zhang, Youyu.,...&Zhang, Yuxiang.(2019).Direct Rubidium-Strontium Dating of Hydrocarbon Charge Using Small Authigenic Illitic Clay Aliquots from the Silurian Bituminous Sandstone in the Tarim Basin, NW China.SCIENTIFIC REPORTS,9,13.
MLA Li, Shaojie,et al."Direct Rubidium-Strontium Dating of Hydrocarbon Charge Using Small Authigenic Illitic Clay Aliquots from the Silurian Bituminous Sandstone in the Tarim Basin, NW China".SCIENTIFIC REPORTS 9(2019):13.
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