GYIG OpenIR  > 地球内部物质高温高压实验室
Thermal Diffusivity of Lherzolite at High Pressures and High Temperatures Using Pulse Method
Sheqiang Miao;  Yongsheng Zhou;  Heping Li
2019
Source PublicationJournal of Earth Science
Volume30Issue:1Pages:218-222
Abstract

Lherzolite is one of the most important components of the subcontinental mantle lithosphere, and the study of its heat transfer properties aids in understanding the thermal structure of the continental mantle lithosphere. Currently, few studies have examined the heat transfer properties of lherzolite, and the experimental results remain controversial. This experiment utilized a pulse method to measure the thermal diffusivity of lherzolite at pressures ranging from 1.0 to 4.0 GPa and temperatures from 300 to 1 073 K on a cubic press apparatus. We obtained a thermal diffusivity for lherzolite of approximately 2.10 mm(2)s(-1) at ambient condition. The experimental pressure derivative of the thermal conductivity of lherzolite decreased with temperature, reaching approximately 10% at high temperature, a value higher than the previously reported 4%, which indicates that the temperature gradient of the upper mantle lithosphere is smaller than previously thought. Therefore, concerning calculation of the lithosphere thickness using the thermal conductivity of the lherzolite, the previous calculation using pressure derivative of the thermal conductivity of 4% may cause an underestimation of the upper mantle lithosphere thickness by approximately 6% in a first approximation.

KeywordThermal Diffusivity Lherzolite Pulse Method Pressure Derivative
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/10250
Collection地球内部物质高温高压实验室
Affiliation1.China Earthquake Adm, State Key Lab Earthquake Dynam, Inst Geol, Beijing 100029, Peoples R China
2.Chinese Acad Sci, CAS Key Lab High Temp & High Pressure Study Earth, Inst Geochem, Guiyang 550081, Guizhou, Peoples R China
Recommended Citation
GB/T 7714
Sheqiang Miao;Yongsheng Zhou;Heping Li. Thermal Diffusivity of Lherzolite at High Pressures and High Temperatures Using Pulse Method[J]. Journal of Earth Science,2019,30(1):218-222.
APA Sheqiang Miao;Yongsheng Zhou;Heping Li.(2019).Thermal Diffusivity of Lherzolite at High Pressures and High Temperatures Using Pulse Method.Journal of Earth Science,30(1),218-222.
MLA Sheqiang Miao;Yongsheng Zhou;Heping Li."Thermal Diffusivity of Lherzolite at High Pressures and High Temperatures Using Pulse Method".Journal of Earth Science 30.1(2019):218-222.
Files in This Item:
File Name/Size DocType Version Access License
Thermal Diffusivity (526KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Sheqiang Miao;Yongsheng Zhou;Heping Li]'s Articles
Baidu academic
Similar articles in Baidu academic
[Sheqiang Miao;Yongsheng Zhou;Heping Li]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Sheqiang Miao;Yongsheng Zhou;Heping Li]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Thermal Diffusivity of Lherzolite at High Pressures and High Temperatures Using Pulse Method.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.