Dual origin of garnet peridotites of Dabie-Sulu UHP terrane, eastern-central China
نویسندگان
چکیده
منابع مشابه
political economy of china in central asia
this research is about the political economy of china in central asia. in this research the political & economic interactions affected on chinas political economy in central asia are examined. chinas goal of presence in central asia including political-security, economic and energy goals is described in one part. in another part, the trade relations between china and central asian countries ar...
15 صفحه اول40Ar/39Ar thermochronology of the Sulu terrane: Late Triassic exhumation of high- and ultrahigh-pressure rocks and implications for Mesozoic tectonics in East Asia
Structural and thermochronological data from the Sulu terrane of eastern China document the exhumation of high-pressure and ultrahigh-pressure (UHP) metamorphic rocks to upper-crustal depths by ca. 206 Ma. 40Ar/39Ar ages from K-bearing phases record recrystallization and cooling through amphiboliteand upper greenschist– facies conditions during top-to-the-NW noncoaxial shear and suggest cooling...
متن کاملVery high-pressure orogenic garnet peridotites.
Mantle-derived garnet peridotites are a minor component in many very high-pressure metamorphic terranes that formed during continental subduction and collision. Some of these mantle rocks contain trace amounts of zircon and micrometer-sized inclusions. The constituent minerals exhibit pre- and postsubduction microstructures, including polymorphic transformation and mineral exsolution. Experimen...
متن کامل40Ar/39Ar thermochronology from the northwestern Dabie Shan: constraints on the evolution of Qinling–Dabie orogenic belt, east-central China
Seven structural units with distinct kinematics have been recognized in the northwestern Dabie Shan (114°E– 115°E and 31°N–32°N), east-central China. They are, from north to south: (1) the north-verging Mafan fold belt (MFB) involving early Paleozoic metamorphic rocks; (2) the Liangting melange belt (LMB), which is separated from the MFB by a south-dipping thrust and consists of gneissic and ma...
متن کاملMetamorphic P–T conditions and thermal structure of Chinese Continental Scientific Drilling main hole eclogites: Fe–Mg partitioning thermometer vs. Zr-in-rutile thermometer
Core rocks recovered from the main hole (5158 m deep) of the Chinese Continental Scientific Drilling (CCSD-MH) project, southern Sulu UHP terrane, east-central China, consist of eclogites, various gneisses and minor metaperidotite cumulates; this lithological section underwent subduction-zone UHP metamorphism. Coesite-bearing eclogites are mainly present between the depths of 100–2000 m, but be...
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ژورنال
عنوان ژورنال: Episodes
سال: 1998
ISSN: 0705-3797,2586-1298
DOI: 10.18814/epiiugs/1998/v21i4/003