Structure and evolution of the Baikal rift: A synthesis
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چکیده
منابع مشابه
Deep structure and origin of the Baikal rift zone
P-wave velocity images are determined under the Baikal rift zone in Siberia by using teleseismic tomography. Our results show prominent low-velocity anomalies in the upper mantle under the Baikal rift zone and high-velocity anomalies in the lithosphere under the Siberian craton. The low-velocity anomalies are interpreted as a mantle upwelling (plume) which has played an important role in the in...
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[1] The Cenozoic rift system of Baikal, located in the interior of the largest continental mass on Earth, is thought to represent a potential analog of the early stage of breakup of supercontinents. We present a detailed P wave velocity structure of the crust and sediments beneath the Central Basin, the deepest basin in the Baikal rift system. The structure is characterized by a Moho depth of 3...
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[1] Like most other major continental rifts, the Baikal rift zone (BRZ) in Siberia is presumably underlain by a hot and partially molten mantle, which has a reduced seismic velocity relative to surrounding areas. Recent seismic tomography studies, however, gave conflicting results about the depth extent and even the existence of the low-velocity anomaly beneath the BRZ, suggesting that addition...
متن کاملMantle transition zone discontinuities beneath 3 the Baikal rift and adjacent areas
6 [1] Like most other major continental rifts, the Baikal rift zone (BRZ) in Siberia is 7 presumably underlain by a hot and partially molten mantle, which has a reduced seismic 8 velocity relative to surrounding areas. Recent seismic tomography studies, however, gave 9 conflicting results about the depth extent and even the existence of the low-velocity 10 anomaly beneath the BRZ, suggesting th...
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