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Article(id=1323705145535627394, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1323705144138932923, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1129046400000, receivedDateStr=2005-10-12, revisedDate=1136995200000, revisedDateStr=2006-01-12, acceptedDate=null, acceptedDateStr=null, onlineDate=1793525499947, onlineDateStr=2026-11-01, pubDate=1173024000000, pubDateStr=2007-03-05, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793525499947, onlineIssueDateStr=2026-11-01, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793525499947, creator=13701087609, updateTime=1793525499947, updator=13701087609, issue=Issue{id=1323705144138932923, tenantId=1146029695717560320, journalId=1255847867265597444, year='2007', volume='21', issue='1', pageStart='1', pageEnd='112', issueExtLink='null', onlineDate='null', pubDate='1173024000000', pubDateStr='2007-03-05', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793525499614, creator='13701087609', updateTime=1793525499614, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=45, endPage=54, ext={EN=ArticleExt(id=1323705147607613571, articleId=1323705145535627394, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=Equation of State and Phase Transition of (Mg0.92, Fe0.08)SiO3 Enstatite under Shock Compression and Its Geophysical Implications, columnId=null, journalTitle=Chinese Journal of High Pressure Physics, columnName=null, runingTitle=null, highlight=null, articleAbstract=

We performed shock wave experiments on a natural pyroxene with chemical composition close to (Mg0.92, Fe0.08)SiO3 and initial density of 3.06 g/cm3 at pressures between 48 and 140 GPa, using impedance-match method and electrical probe technique. Considering McQueen et. al. data, it is obvious that (Mg0.92, Fe0.08)SiO3 goes through three phase regions in the procedure of shock compression: Low-pressure phase region (LPR), mixed phase region (MPR), and high-pressure phase region (HPR), corresponding to the pressure 0~40 GPa, 40~67 GPa and 68~140 GPa, respectively. In low-pressure phase region, the relationship between shock wave velocity D and particle velocity u was expressed by McQueen et. al. data. Then in high-pressure phase region (at pressures between 68 to 140 GPa), it can be described linearly from our experiment data. The calculated D-u relationship for the assemblage of (Mg0.92, Fe0.08)O(Mw)+SiO2(St) is significantly different from the experimental data, excluding the possibility of chemical decomposition of perovskite to oxides during the shock compression. The Grüneisen parameter γ can be obtained by fitting the experimental data. Using the third-order Birch-Murnaghan finite strain equation of state, the shock experimental data yield a zero-pressure bulk modulus K0S=259.6(9) GPa and its pressure derivative K′0S=4.20(5), with ρ0=4.19 g/cm3. A comparison of the experimental Hugoniot densities of perovskite with the PREM density profile prefers a perovskite-dominant lower mantle model.

, authors=Jin-Ke YANG1, Zi-Zheng GONG1, 2, Li-Wei DENG1, 3, Li ZHANG1, 3, Ying-Wei FEI3, authorsList=Jin-Ke YANG, Zi-Zheng GONG, Li-Wei DENG, Li ZHANG, Ying-Wei FEI, authorCompany=null, correspAuthors=Zi-Zheng GONG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1323705148614246532, articleId=1323705145535627394, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=顽火辉石（Mg0.92，Fe0.08）SiO3的冲击相变和高压状态方程及其地球物理意义, columnId=0, journalTitle=高压物理学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

用阻抗匹配法和电探针技术在48~140 GPa冲击压力范围内对化学组分为（Mg0.92，Fe0.08）SiO3、初始密度为3.06 g/cm3的天然顽火辉石进行了冲击压缩实验。根据本工作13发实验数据，结合McQueen等人的数据可以看出，（Mg0.92，Fe0.08）SiO3顽火辉石在冲击压缩过程中，大约经历三个明显区域：低压相区，压力范围为0~40 GPa；混合相区，压力范围为40~67 GPa；高压相区，压力范围为68~140 GPa。在低压相区，D-u关系已由McQueen给出；而在高压相区（68~140 GPa），可由本实验数据得到。由叠加原理计算得到的混合物（Mg0.92，Fe0.08）O（Mw）+SiO2（St）的D-u关系及p-ρ关系曲线明显偏离了实验数据的拟合曲线，从而排除了在高达140 GPa冲击压力下，钙钛矿结构的（Mg0.92，Fe0.08）SiO3发生向氧化物化学分解相变的可能性。对高压相区的实验数据进行拟合，可以得到（Mg0.92，Fe0.08）SiO3钙钛矿的Grüneisen参数γ。通过三阶Birch-Murnaghan有限应变状态方程，由冲击波实验数据得到了零压等熵体积模量K0S=259.6（9）GPa及其对压力的一阶偏导数K′0S=4.20（5），其ρ0=4.19 g/cm3。（Mg0.92，Fe0.08）SiO3钙钛矿冲击压缩下的密度数据与PREM密度剖面吻合很好，支持钙钛矿为主要成分的下地幔模型。

, authors=杨金科1, 龚自正1, 2, 邓力维1, 3, 张莉1, 3, 费英伟3, authorsList=杨金科, 龚自正, 邓力维, 张莉, 费英伟, authorCompany=null, correspAuthors=龚自正, authorNote=

杨金科（1981—），男，硕士研究生

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龚自正（1964—），男，博士，教授，博士生导师，主要从事高压物理、地球深部物理、超高速碰撞动力学研究. E-mail：
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杨金科（1981—），男，硕士研究生

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杨金科（1981—），男，硕士研究生

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顽火辉石（Mg0.92，Fe0.08）SiO3的冲击相变和高压状态方程及其地球物理意义
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杨金科 1 , 龚自正 1, 2 , 邓力维 1, 3 , 张莉 1, 3 , 费英伟 3
高压物理学报 | 2007,21(1): 45-54
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高压物理学报 | 2007 , 21 (1) : 45 -54
顽火辉石（Mg0.92，Fe0.08）SiO3的冲击相变和高压状态方程及其地球物理意义
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杨金科（1981—），男，硕士研究生

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杨金科1, 龚自正1, 2 , 邓力维1, 3, 张莉1, 3, 费英伟3
作者信息
  • 1.西南交通大学高温高压物理研究所，四川 成都　610031
  • 2.中国空间技术研究院总装与环境工程部，北京　100094
  • 3.华盛顿卡内基研究院地球物理实验室，美国 华盛顿　20015
通讯作者:
龚自正（1964—），男，博士，教授，博士生导师，主要从事高压物理、地球深部物理、超高速碰撞动力学研究. E-mail：
作者简介:

杨金科（1981—），男，硕士研究生

Equation of State and Phase Transition of (Mg0.92, Fe0.08)SiO3 Enstatite under Shock Compression and Its Geophysical Implications
Jin-Ke YANG1, Zi-Zheng GONG1, 2 , Li-Wei DENG1, 3, Li ZHANG1, 3, Ying-Wei FEI3
Affiliations
  • 1.Institute of High Pressure & High Temperature Physics, Southwest Jiaotong University, Chengdu 610031, China
  • 2.Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China
  • 3.Geophysical Laboratory, Carnegie Institution of Washington, Washington DC 20015, USA
出版时间: 2007-03-05
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摘要
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用阻抗匹配法和电探针技术在48~140 GPa冲击压力范围内对化学组分为（Mg0.92，Fe0.08）SiO3、初始密度为3.06 g/cm3的天然顽火辉石进行了冲击压缩实验。根据本工作13发实验数据，结合McQueen等人的数据可以看出，（Mg0.92，Fe0.08）SiO3顽火辉石在冲击压缩过程中，大约经历三个明显区域：低压相区，压力范围为0~40 GPa；混合相区，压力范围为40~67 GPa；高压相区，压力范围为68~140 GPa。在低压相区，D-u关系已由McQueen给出；而在高压相区（68~140 GPa），可由本实验数据得到。由叠加原理计算得到的混合物（Mg0.92，Fe0.08）O（Mw）+SiO2（St）的D-u关系及p-ρ关系曲线明显偏离了实验数据的拟合曲线，从而排除了在高达140 GPa冲击压力下，钙钛矿结构的（Mg0.92，Fe0.08）SiO3发生向氧化物化学分解相变的可能性。对高压相区的实验数据进行拟合，可以得到（Mg0.92，Fe0.08）SiO3钙钛矿的Grüneisen参数γ。通过三阶Birch-Murnaghan有限应变状态方程，由冲击波实验数据得到了零压等熵体积模量K0S=259.6（9）GPa及其对压力的一阶偏导数K′0S=4.20（5），其ρ0=4.19 g/cm3。（Mg0.92，Fe0.08）SiO3钙钛矿冲击压缩下的密度数据与PREM密度剖面吻合很好，支持钙钛矿为主要成分的下地幔模型。

（Mg0.92，Fe0.08）SiO3-钙钛矿  /  冲击压缩  /  状态方程  /  相稳定性  /  下地幔矿物学组成

We performed shock wave experiments on a natural pyroxene with chemical composition close to (Mg0.92, Fe0.08)SiO3 and initial density of 3.06 g/cm3 at pressures between 48 and 140 GPa, using impedance-match method and electrical probe technique. Considering McQueen et. al. data, it is obvious that (Mg0.92, Fe0.08)SiO3 goes through three phase regions in the procedure of shock compression: Low-pressure phase region (LPR), mixed phase region (MPR), and high-pressure phase region (HPR), corresponding to the pressure 0~40 GPa, 40~67 GPa and 68~140 GPa, respectively. In low-pressure phase region, the relationship between shock wave velocity D and particle velocity u was expressed by McQueen et. al. data. Then in high-pressure phase region (at pressures between 68 to 140 GPa), it can be described linearly from our experiment data. The calculated D-u relationship for the assemblage of (Mg0.92, Fe0.08)O(Mw)+SiO2(St) is significantly different from the experimental data, excluding the possibility of chemical decomposition of perovskite to oxides during the shock compression. The Grüneisen parameter γ can be obtained by fitting the experimental data. Using the third-order Birch-Murnaghan finite strain equation of state, the shock experimental data yield a zero-pressure bulk modulus K0S=259.6(9) GPa and its pressure derivative K′0S=4.20(5), with ρ0=4.19 g/cm3. A comparison of the experimental Hugoniot densities of perovskite with the PREM density profile prefers a perovskite-dominant lower mantle model.

(Mg0.92, Fe0.08)SiO3-perovskite  /  shock compression  /  equation of state  /  phase stability  /  lower mantle
杨金科, 龚自正, 邓力维, 张莉, 费英伟. 顽火辉石（Mg0.92，Fe0.08）SiO3的冲击相变和高压状态方程及其地球物理意义. 高压物理学报, 2007 , 21 (1) : 45 -54 .
Jin-Ke YANG, Zi-Zheng GONG, Li-Wei DENG, Li ZHANG, Ying-Wei FEI. Equation of State and Phase Transition of (Mg0.92, Fe0.08)SiO3 Enstatite under Shock Compression and Its Geophysical Implications[J]. Chinese Journal of High Pressure Physics, 2007 , 21 (1) : 45 -54 .
基金
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  • 国家自然科学基金面上项目(40474033)
  • 国家自然科学基金重大项目(10299040)
  • 高等学校博士学科点专项基金项目(20050613017)
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  • 接收时间：2005-10-12
  • 首发时间：2026-11-01
  • 出版时间：2007-03-05
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  • 收稿日期：2005-10-12
  • 修回日期：2006-01-12
基金
国家自然科学基金面上项目(40474033)
国家自然科学基金重大项目(10299040)
高等学校博士学科点专项基金项目(20050613017)
作者信息
    1.西南交通大学高温高压物理研究所，四川 成都　610031
    2.中国空间技术研究院总装与环境工程部，北京　100094
    3.华盛顿卡内基研究院地球物理实验室，美国 华盛顿　20015

通讯作者:

龚自正（1964—），男，博士，教授，博士生导师，主要从事高压物理、地球深部物理、超高速碰撞动力学研究. E-mail：
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2种不同金属材料的力学参数
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Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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