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Fission-track evidence of tectonic evolution in the northwestern Qaidam Basin, China
Sun, Guo-Qiang1; Liu, Wei-Ming1,2; Guo, Jia-Jia1,2; Wang, Ye-Tong1,2
2018-02-01
Source PublicationJOURNAL OF EARTH SYSTEM SCIENCE
ISSN0253-4126
Volume127Issue:1
SubtypeArticle
AbstractFission-track dating was conducted on zircons and apatites from 11 cores of the upper Xiaganchaigou Formation and lower Shangganchaigou Formation (northwestern Qaidam Basin). The obtained apatite fission-track age is 3.1-61.9 Ma, and the zircon fission-track age is 49.2-123.5 Ma. Although the average apatite age is consistent with ages predicted from the stratigraphy, nine of the 11 apatite fission-track ages have P(chi(2)) < 5%, indicating that the grains experienced heterogeneous annealing after sedimentation. The average zircon age is greater than that indicated by stratigraphy, and all eight zircon fission ages have P(chi(2)) > 5%, exhibiting consistent characteristics and indicating that zircons retain provenance age information after burial. From the zircon and apatite ages, the fission-track length distribution, and the geological setting, the northwestern Qaidam Basin has experienced two tectonothermal events since the Late Mesozoic, at 39.1 +/- 9.3 to 133.7 +/- 6.6 Ma and 1.2 +/- 0.6 to 32.0 +/- 3.0 Ma. The earlier (39.1-133.7 Ma) tectonothermal event resulted from the initial collision of the Indian and Eurasian plates. As a consequence of the collision, the Altyn Tagh fault, which forms the northwestern boundary of the Qaidam Basin, began to develop. Subsequently, uplift of the Altyn Tagh mountains began and the northwestern depression of the Qaidam Basin started to form. The later (1.2-32.0 Ma) tectonothermal event resulted from further collision of the Indian and Eurasian plates along the Yarlung Tsangpo suture zone. Strata in the Qaidam Basin were further deformed by transpression in this period and this period played a crucial role in petroleum accumulation.
KeywordApatite Fission-track Zircon Fission-track Tectonic Evolution Qaidam Basin
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s12040-017-0914-z
Funding Organization'Western Light' Talents Training Program of CAS ; 'Western Light' Talents Training Program of CAS ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; 'Western Light' Talents Training Program of CAS ; 'Western Light' Talents Training Program of CAS ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; 'Western Light' Talents Training Program of CAS ; 'Western Light' Talents Training Program of CAS ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; 'Western Light' Talents Training Program of CAS ; 'Western Light' Talents Training Program of CAS ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Key Laboratory Project of Gansu Province(1309RTSA041)
WOS KeywordALTYN-TAGH FAULT ; NW CHINA ; THERMAL HISTORY ; CONSTRAINTS ; APATITE ; HIMALAYA ; INDIA ; THERMOCHRONOLOGY ; KUMAON ; TEMPERATURE
Indexed BySCI
Language英语
Funding Organization'Western Light' Talents Training Program of CAS ; 'Western Light' Talents Training Program of CAS ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; 'Western Light' Talents Training Program of CAS ; 'Western Light' Talents Training Program of CAS ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; 'Western Light' Talents Training Program of CAS ; 'Western Light' Talents Training Program of CAS ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; 'Western Light' Talents Training Program of CAS ; 'Western Light' Talents Training Program of CAS ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Nature Science Foundation of Gansu Province(1308RJZA310) ; Key Laboratory Project of Gansu Province(1309RTSA041) ; Key Laboratory Project of Gansu Province(1309RTSA041)
WOS Research AreaGeology ; Science & Technology - Other Topics
WOS SubjectGeosciences, Multidisciplinary ; Multidisciplinary Sciences
WOS IDWOS:000426596600012
PublisherINDIAN ACAD SCIENCES
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/93132
Collection兰州油气中心
Corresponding AuthorSun, Guo-Qiang
Affiliation1.Chinese Acad Sci, Key Lab Petr Resources, Gansu Prov Key Lab Petr Resources Res, Inst Geol & Geophys, Lanzhou 730000, Gansu, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Sun, Guo-Qiang,Liu, Wei-Ming,Guo, Jia-Jia,et al. Fission-track evidence of tectonic evolution in the northwestern Qaidam Basin, China[J]. JOURNAL OF EARTH SYSTEM SCIENCE,2018,127(1).
APA Sun, Guo-Qiang,Liu, Wei-Ming,Guo, Jia-Jia,&Wang, Ye-Tong.(2018).Fission-track evidence of tectonic evolution in the northwestern Qaidam Basin, China.JOURNAL OF EARTH SYSTEM SCIENCE,127(1).
MLA Sun, Guo-Qiang,et al."Fission-track evidence of tectonic evolution in the northwestern Qaidam Basin, China".JOURNAL OF EARTH SYSTEM SCIENCE 127.1(2018).
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