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Tectonic Implications of Detrital Zircon Ages From Lesser Himalayan Mesozoic-Cenozoic Strata, Pakistan
Qasim, M (Qasim, Muhammad)1,2,3,4; Ding, L (Ding, Lin)1,2,3; Khan, MA (Khan, Muhammad Asif)5; Jadoon, IAK (Jadoon, Ishtiaq A. K.)4; Haneef, M (Haneef, Muhammad)4; Baral, U (Baral, Upendra)1,2; Cai, FL (Cai, Fulong)1,2; Wang, HQ (Wang, Houqi)1,2; Yue, YH (Yue, Yahui)1,2
Source PublicationGEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
2018-05-01
Volume19Issue:5Pages:1636-1659
DOI10.1002/2017GC006895
AbstractWe carried U-Pb-Hf geochronology of the clastic sequence covering upper Mesozoic-Cenozoic period. The upper Mesozoic sequence is overlain unconformably by the Cenozoic strata, marking regional K-T boundary, which is mapped as angular unconformity. This angular relationship may strongly indicate a compressional orogenic event that occurred during the Late Cretaceous. Late Cretaceous Kohistan-Karakoram collision and ophiolite emplacement may account for the development of this compression along the northern Indian margin. The U-Pb-Hf isotopic analyses of the upper Mesozoic and lower Cenozoic sequence (Hangu Formation and Lower Patala Formation) are similar to the Tethyan and Lesser Himalayan signatures, which indicate the Indian-plate provenance. The two younger Cretaceous grains recorded in the Hangu Formation might be derived from the Indian-plate volcanic rocks and/or Tethyan Himalayan volcanic rocks. The absence of ophiolitic age component in the precollision sequence may indicate that these ophiolites are not exposed until final India-Eurasia collision. The major shift in provenance is recorded in the upper part of the Patala Formation, where the presence of disconformity and the appearance of <100 Ma detrital zircons indicate the contribution of Eurasian source (i.e., Kohistan-Ladakh arc; KLA), which is further supported by the Hf(t) signatures. Upsection, the contribution from Eurasian source increased in the Early Middle Eocene Kuldana Formation. Therefore, we suggest that the provenance mixing close to Paleocene-Eocene boundary indicates that the India-Eurasia collision in the north Pakistan occurred at approximate to 56-55 Ma and subsequent exhumation increased the contribution of the northern (Eurasian) provenance in the upsection.
WOS IDWOS:000436542200013
Language英语
Indexed BySCIE
KeywordINDIA-ASIA COLLISION SOUTHERN TIBET IMPLICATIONS HF ISOTOPIC CONSTRAINTS MIDDLE EOCENE AGE U-PB NORTH PAKISTAN FORELAND BASIN TETHYAN HIMALAYA LADAKH HIMALAYA SUTURE ZONE
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
Cooperation Status国际
ISSN1525-2027
Department大陆碰撞与高原隆升重点实验室
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8649
Collection图书馆
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing, Peoples R China;
2.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China;
3.Univ Chinese Acad Sci, Beijing, Peoples R China;
4.COMSATS Inst Informat Technol, Dept Earth Sci, Abbottabad, Kpk, Pakistan;
5.Karakorum Int Univ, Gilgit, Gilgit Baltista, Pakistan.
Recommended Citation
GB/T 7714
Qasim, M ,Ding, L ,Khan, MA ,et al. Tectonic Implications of Detrital Zircon Ages From Lesser Himalayan Mesozoic-Cenozoic Strata, Pakistan[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2018,19(5):1636-1659.
APA Qasim, M .,Ding, L .,Khan, MA .,Jadoon, IAK .,Haneef, M .,...&Yue, YH .(2018).Tectonic Implications of Detrital Zircon Ages From Lesser Himalayan Mesozoic-Cenozoic Strata, Pakistan.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,19(5),1636-1659.
MLA Qasim, M ,et al."Tectonic Implications of Detrital Zircon Ages From Lesser Himalayan Mesozoic-Cenozoic Strata, Pakistan".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 19.5(2018):1636-1659.
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