Matches in SemOpenAlex for { <https://semopenalex.org/work/W2104680596> ?p ?o ?g. }
- W2104680596 endingPage "n/a" @default.
- W2104680596 startingPage "n/a" @default.
- W2104680596 abstract "[1] A >500-km-long east-west trending metamorphic belt in the Qiangtang terrane of central Tibet consists of tectonic melange that occurs in the footwalls of Late Triassic–Early Jurassic domal low-angle normal faults. The melange is comprised of a strongly deformed matrix of metasedimentary and mafic schists that encloses lesser-deformed blocks of metabasites, Carboniferous–Triassic metasedimentary rocks, and early Paleozoic gneiss. Both the blocks and melange matrix exhibit greenschist, epidote-blueschist, and locally, epidote-amphibolite facies mineral assemblages. Thermobarometry reveals that the metamorphic belt experienced pressures of >10 kbar. Maximum equilibration temperatures for mafic schists in the melange matrix decrease from east to west, from ∼660°C near Shuang Hu (33°N, 89°E), ∼500°C near Rongma (33°N, 87°E), to ∼425°C near Gangma Co (34°N, 84°E). Equilibration at consistently high pressures over a large range of temperatures is compatible with metamorphism of Qiangtang melange within a low-angle subduction zone beneath a continental margin. Coupled structural, thermobarometric, and 40Ar/39Ar studies suggest that Qiangtang melange was exhumed in an intracontinental setting from depths of >35 km to upper crustal levels in <12 Myr by Late Triassic–Early Jurassic crustal-scale normal faulting. Detrital zircons from metasandstones within the melange matrix yield U-Pb ion-microprobe ages that range from early Paleozoic to Early Archean, and could have been sourced from terranes to the north of the Jinsha suture. Our results support a model in which Qiangtang melange was underthrust ∼200 km beneath the Qiangtang terrane during early Mesozoic flat-slab southward subduction of Paleo-Tethyan oceanic lithosphere along the Jinsha suture. This model predicts that significant portions of the central Tibetan continental mantle lithosphere were removed during early Mesozoic low-angle oceanic subduction and that the present-day central Tibetan deeper crust includes large volumes of underthrust early Mesozoic melange." @default.
- W2104680596 created "2016-06-24" @default.
- W2104680596 creator A5000640064 @default.
- W2104680596 creator A5018895652 @default.
- W2104680596 creator A5020483672 @default.
- W2104680596 creator A5048828311 @default.
- W2104680596 creator A5073480923 @default.
- W2104680596 creator A5090387304 @default.
- W2104680596 date "2003-08-01" @default.
- W2104680596 modified "2023-10-09" @default.
- W2104680596 title "Tectonic evolution of the early Mesozoic blueschist-bearing Qiangtang metamorphic belt, central Tibet" @default.
- W2104680596 cites W1861456114 @default.
- W2104680596 cites W1965669613 @default.
- W2104680596 cites W1966064310 @default.
- W2104680596 cites W1967438556 @default.
- W2104680596 cites W1968617532 @default.
- W2104680596 cites W1968971801 @default.
- W2104680596 cites W1972050587 @default.
- W2104680596 cites W1973448891 @default.
- W2104680596 cites W1975759160 @default.
- W2104680596 cites W1975825498 @default.
- W2104680596 cites W1978213839 @default.
- W2104680596 cites W1979867347 @default.
- W2104680596 cites W1982874785 @default.
- W2104680596 cites W1984200080 @default.
- W2104680596 cites W1986092846 @default.
- W2104680596 cites W1991890617 @default.
- W2104680596 cites W1993519551 @default.
- W2104680596 cites W1999213266 @default.
- W2104680596 cites W1999812652 @default.
- W2104680596 cites W2001008178 @default.
- W2104680596 cites W2003945995 @default.
- W2104680596 cites W2006802934 @default.
- W2104680596 cites W2007004781 @default.
- W2104680596 cites W2007105153 @default.
- W2104680596 cites W2008993391 @default.
- W2104680596 cites W2011183307 @default.
- W2104680596 cites W2012512380 @default.
- W2104680596 cites W2016760315 @default.
- W2104680596 cites W2018644516 @default.
- W2104680596 cites W2021345743 @default.
- W2104680596 cites W2030800261 @default.
- W2104680596 cites W2031516303 @default.
- W2104680596 cites W2032464438 @default.
- W2104680596 cites W2034675441 @default.
- W2104680596 cites W2040024930 @default.
- W2104680596 cites W2040227616 @default.
- W2104680596 cites W2040549377 @default.
- W2104680596 cites W2041774199 @default.
- W2104680596 cites W2055934850 @default.
- W2104680596 cites W2056501136 @default.
- W2104680596 cites W2056983983 @default.
- W2104680596 cites W2057208829 @default.
- W2104680596 cites W2060188274 @default.
- W2104680596 cites W2064098999 @default.
- W2104680596 cites W2064890508 @default.
- W2104680596 cites W2069815139 @default.
- W2104680596 cites W2074001178 @default.
- W2104680596 cites W2075385990 @default.
- W2104680596 cites W2077085454 @default.
- W2104680596 cites W2082800626 @default.
- W2104680596 cites W2083656706 @default.
- W2104680596 cites W2088380586 @default.
- W2104680596 cites W2089585228 @default.
- W2104680596 cites W2090151793 @default.
- W2104680596 cites W2092371852 @default.
- W2104680596 cites W2093671367 @default.
- W2104680596 cites W2096276260 @default.
- W2104680596 cites W2100982634 @default.
- W2104680596 cites W2102705358 @default.
- W2104680596 cites W2104575291 @default.
- W2104680596 cites W2115518283 @default.
- W2104680596 cites W2116346512 @default.
- W2104680596 cites W2121440949 @default.
- W2104680596 cites W2130751043 @default.
- W2104680596 cites W2131822747 @default.
- W2104680596 cites W2132593853 @default.
- W2104680596 cites W2133940745 @default.
- W2104680596 cites W2134490602 @default.
- W2104680596 cites W2140816768 @default.
- W2104680596 cites W2152546160 @default.
- W2104680596 cites W2330756480 @default.
- W2104680596 cites W2365546427 @default.
- W2104680596 cites W2754599386 @default.
- W2104680596 cites W27821953 @default.
- W2104680596 cites W4230590629 @default.
- W2104680596 doi "https://doi.org/10.1029/2002tc001383" @default.
- W2104680596 hasPublicationYear "2003" @default.
- W2104680596 type Work @default.
- W2104680596 sameAs 2104680596 @default.
- W2104680596 citedByCount "336" @default.
- W2104680596 countsByYear W21046805962012 @default.
- W2104680596 countsByYear W21046805962013 @default.
- W2104680596 countsByYear W21046805962014 @default.
- W2104680596 countsByYear W21046805962015 @default.
- W2104680596 countsByYear W21046805962016 @default.
- W2104680596 countsByYear W21046805962017 @default.
- W2104680596 countsByYear W21046805962018 @default.