Neotectonic inversions in the Baikal Rift System

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...

Structure and evolution of the Baikal rift: A synthesis

The Midcontinent Rift System

One of the most prominent features on gravity and aeromagnetic maps of the United States is a series of major, generally linear anomalies that extend from central Kansas to Lake Superior and then turn southward into central Michigan (Figures 1, 2). This system of anomalies clearly reflects major geological features, and as such it must represent a very significant episode in the history of the ...

Mantle transition zone discontinuities beneath the Baikal rift and adjacent areas

[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...

Mantle 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...