Detectable Continental Crust in the Earth's Deep Interior Inferred From Thermodynamic Modeling

Autor:	Yibing Li, Yi Chen, Richard M. Palin, Xiaobo Tian, Xiaofeng Liang, Lijun Liu
Jazyk:	angličtina
Rok vydání:	2024
Předmět:	seismic velocity thermodynamic modeling subducted continent crust mineral‐physical database mantle transition zone high‐velocity anomalies Geophysics. Cosmic physics QC801-809
Zdroj:	Geophysical Research Letters, Vol 51, Iss 17, Pp n/a-n/a (2024)
Druh dokumentu:	article
ISSN:	1944-8007 0094-8276
DOI:	10.1029/2024GL111556
Popis:	Abstract Compelling evidence indicates that continental crust can subduct to >300 km and even enter the mantle transition zone (MTZ). However, detecting continental materials within the deep Earth is challenging due to our incomplete knowledge about their physical properties at mantle conditions. We use a newly compiled mineral‐physical database coupled with thermodynamic modeling to calculate seismic velocities of the subducted continental crust (SCC) beyond 150 km. Results show that the SCC has one seismically detectable window depth (300–390 km) with ∼4% VP anomaly. Besides, the upper crust has another two window depths (
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/2b900981939941a7808c4b388acfe17e Zobrazit plný text záznamu Plný text View record in DOAJ