Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL088877 |
Sound velocities of Al‐bearing phase D up to 22 GPa and 1300 K | |
Chaowen Xu; Steeve Gré; aux; Toru Inoue; Masamichi Noda; Wei Sun; Hideharu Kuwahara; Yuji Higo | |
2020-09-09 | |
发表期刊 | Geophysical Research Letters
![]() |
出版年 | 2020 |
英文摘要 | Sound velocities of Al‐bearing phase D were investigated up to 22 GPa and 1300 K using in situ synchrotron X‐ray techniques combined with ultrasonic measurements in a multianvil apparatus. The isothermal bulk modulus of Al‐bearing phase D was found to be ~16.7% lower than that of Mg‐endmember, suggesting a strong effect of Al incorporation on the bulk modulus of phase D. Al‐bearing phase D has higher P‐ (VP) and S‐ (VS) wave velocities compared to other mantle transition zone minerals, up to 4.3% for VP and up to 9.6% for VS compared with hydrous iron‐bearing ringwoodite, which might engender reduction of velocity contrast between anhydrous mantle and hydrous slab components. The accumulation of hydrated slab components carrying Al‐phase D in the uppermost lower mantle can explain some local negative shear velocity perturbations (ΔVS) up to ‐1.5%, although ΔVP (‐0.5%) is expected to remain below the detection limit of seismological techniques. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/294013 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Chaowen Xu,Steeve Gré,aux,等. Sound velocities of Al‐bearing phase D up to 22 GPa and 1300 K[J]. Geophysical Research Letters,2020. |
APA | Chaowen Xu.,Steeve Gré.,aux.,Toru Inoue.,Masamichi Noda.,...&Yuji Higo.(2020).Sound velocities of Al‐bearing phase D up to 22 GPa and 1300 K.Geophysical Research Letters. |
MLA | Chaowen Xu,et al."Sound velocities of Al‐bearing phase D up to 22 GPa and 1300 K".Geophysical Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论