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40Ar/39Ar ages of detrital white mica constrain the Cenozoic development of the intracontinental Qaidam Basin, China

2006; Geological Society of America; Volume: 118; Issue: 11-12 Linguagem: Inglês

10.1130/b25962.1

1943-2674

Andrea Rieser, Yongjiang Liu, Johann Genser, Franz Neubauer, Robert Handler, Gertrude Friedl, Xian-Hui Ge,

High-pressure geophysics and materials

Research Article| November 01, 2006 40Ar/39Ar ages of detrital white mica constrain the Cenozoic development of the intracontinental Qaidam Basin, China Andrea B. Rieser; Andrea B. Rieser 1Division of General Geology and Geodynamics, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria Search for other works by this author on: GSW Google Scholar Yongjiang Liu; Yongjiang Liu 2College of Earth Sciences, Jilin University, Jianshe Str. 2199, 130061 Changchun, China Search for other works by this author on: GSW Google Scholar Johann Genser; Johann Genser 3Division of General Geology and Geodynamics, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria Search for other works by this author on: GSW Google Scholar Franz Neubauer; Franz Neubauer 3Division of General Geology and Geodynamics, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria Search for other works by this author on: GSW Google Scholar Robert Handler; Robert Handler 3Division of General Geology and Geodynamics, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria Search for other works by this author on: GSW Google Scholar Gertrude Friedl; Gertrude Friedl 3Division of General Geology and Geodynamics, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria Search for other works by this author on: GSW Google Scholar Xiao-Hong Ge Xiao-Hong Ge 4College of Earth Sciences, Jilin University, Jianshe Str. 2199, 130061 Changchun, China Search for other works by this author on: GSW Google Scholar Author and Article Information Andrea B. Rieser 1Division of General Geology and Geodynamics, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria Yongjiang Liu 2College of Earth Sciences, Jilin University, Jianshe Str. 2199, 130061 Changchun, China Johann Genser 3Division of General Geology and Geodynamics, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria Franz Neubauer 3Division of General Geology and Geodynamics, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria Robert Handler 3Division of General Geology and Geodynamics, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria Gertrude Friedl 3Division of General Geology and Geodynamics, University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria Xiao-Hong Ge 4College of Earth Sciences, Jilin University, Jianshe Str. 2199, 130061 Changchun, China Publisher: Geological Society of America Received: 03 Jan 2006 Revision Received: 06 Jun 2006 Accepted: 20 Jul 2006 First Online: 03 Oct 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (2006) 118 (11-12): 1522–1534. https://doi.org/10.1130/B25962.1 Article history Received: 03 Jan 2006 Revision Received: 06 Jun 2006 Accepted: 20 Jul 2006 First Online: 03 Oct 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Andrea B. Rieser, Yongjiang Liu, Johann Genser, Franz Neubauer, Robert Handler, Gertrude Friedl, Xiao-Hong Ge; 40Ar/39Ar ages of detrital white mica constrain the Cenozoic development of the intracontinental Qaidam Basin, China. GSA Bulletin 2006;; 118 (11-12): 1522–1534. doi: https://doi.org/10.1130/B25962.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract 40Ar/39Ar dating of detrital white mica from Cenozoic sediments from the nonmarine Qaidam Basin in western China yields several age groups. These include (1) ca. 350–450 Ma, (2) 220–280 Ma, subordinate clusters with (3) 122–140 Ma, and (4) a minor group ca. 500 Ma. Ages between 350 and 450 Ma are the most common and dominating in the analyzed samples.Detrital mica in the western Qaidam Basin can be of a northern (Altyn Mountains) and/or a southern (Qimantagh–Kunlun Mountains) provenance. The main age group of 350–450 Ma is well known from intrusions in the Altyn Mountains, whereas the young ages (120–126 Ma) have been found within shear zones along the Central Kunlun and Altyn Tagh faults. However, hinterland sectors beyond the Altyn Tagh and Central Kunlun faults must be considered as potential source areas, because the imbalance between the amount of basin fill to eroded basement material requires additional sources. Early Paleozoic ages (ca. 500 Ma) have been documented so far only in the Hongliugou suture zone north of the Altyn Tagh fault. This suggests late or slow continuous uplift of the southern Altyn Range, and because of sinistral slip along the Altyn Tagh fault, further units of the same age are now exposed farther westward. The age group of 220–280 Ma has been documented only from the northern basin margin. This age group may indicate recycling from Triassic–Jurassic cover sequences of the Altyn Mountains or provenance from Permian–Triassic granite bodies that possibly originated in the Qilian Mountains. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.