scholarly journals Mantle transition zone structure beneath the Changbai volcano: Insight into deep slab dehydration and hot upwelling near the 410 km discontinuity

2016 ◽  
Vol 121 (8) ◽  
pp. 5794-5808 ◽  
Author(s):  
You Tian ◽  
Hongxiang Zhu ◽  
Dapeng Zhao ◽  
Cai Liu ◽  
Xuan Feng ◽  
...  
Keyword(s):  
Transition Zone ◽  
Zone Structure ◽  
Mantle Transition Zone ◽  
Slab Dehydration ◽  
Insight Into

scholarly journals Mantle transition zone structure beneath India and Western China from migration of PP and SS precursors

2014 ◽  
Vol 197 (1) ◽  
pp. 396-413 ◽  
Author(s):  
S. Lessing ◽  
C. Thomas ◽  
S. Rost ◽  
L. Cobden ◽  
D. P. Dobson
Keyword(s):  
Transition Zone ◽  
Western China ◽  
Zone Structure ◽  
Mantle Transition Zone ◽  
Ss Precursors

Lateral Variations of the Mantle Transition Zone Structure beneath Eastern China

2014 ◽  
Vol 104 (3) ◽  
pp. 1533-1539 ◽  
Author(s):  
H. Huang ◽  
P. Wang ◽  
N. Mi ◽  
Z. Huang ◽  
M. Xu ◽  
...  
Keyword(s):  
Transition Zone ◽  
Eastern China ◽  
Zone Structure ◽  
Mantle Transition Zone ◽  
Lateral Variations

scholarly journals Mantle Transition Zone Structure Beneath Myanmar and Its Geodynamic Implications

2020 ◽  
Vol 21 (12) ◽  
Author(s):  
Yiming Bai ◽  
Xiaohui Yuan ◽  
Yumei He ◽  
Guangbing Hou ◽  
Myo Thant ◽  
...  
Keyword(s):  
Transition Zone ◽  
Zone Structure ◽  
Mantle Transition Zone

scholarly journals Tracing the subducting Pacific slab to the mantle transition zone with hydrogen isotopes

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Takeshi Kuritani ◽  
Kenji Shimizu ◽  
Takayuki Ushikubo ◽  
Qun-Ke Xia ◽  
Jia Liu ◽  
...  
Keyword(s):  
Transition Zone ◽  
Melt Inclusions ◽  
Hydrogen Isotopes ◽  
Volcanic Front ◽  
Mantle Transition Zone ◽  
Deep Interior ◽  
Terrestrial Water ◽  
Quantitative Understanding ◽  
Pacific Slab ◽  
Slab Dehydration

AbstractHydrogen isotopes have been widely used as powerful tracers to understand the origin of terrestrial water and the water circulation between the surface and the deep interior of the Earth. However, further quantitative understanding is hindered due to a lack of observations about the changes in D/H ratios of a slab during subduction. Here, we report hydrogen isotope data of olivine-hosted melt inclusions from active volcanoes with variable depths (90‒550 km) to the subducting Pacific slab. The results show that the D/H ratio of the slab fluid at the volcanic front is lower than that of the slab fluid just behind the volcanic front. This demonstrates that fluids with different D/H ratios were released from the crust and the underlying peridotite portions of the slab around the volcanic front. The results also show that the D/H ratios of slab fluids do not change significantly with slab depths from 300 to 550 km, which demonstrates that slab dehydration did not occur significantly beyond the arc. Our estimated δD‰ value for the slab materials that accumulated in the mantle transition zone is > − 90‰, a value which is significantly higher than previous estimates.

Slab dehydration in the Earth's mantle transition zone

2006 ◽  
Vol 251 (1-2) ◽  
pp. 156-167 ◽  
Author(s):  
Guillaume Richard ◽  
David Bercovici ◽  
Shun-Ichiro Karato
Keyword(s):  
Transition Zone ◽  
Mantle Transition Zone ◽  
Earth’S Mantle ◽  
Slab Dehydration
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