Constitution and structure of earth's mantle: insights from mineral physics and seismology
Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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Constitution and structure of earth's mantle : insights from mineral physics and seismology. / Zunino, Andrea; Khan, Amir; Cupillard, Paul; Mosegaard, Klaus.
Integrated imaging of the earth: theory and applications. Wiley, 2016. p. 219-243.Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review
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TY - CHAP
T1 - Constitution and structure of earth's mantle
T2 - insights from mineral physics and seismology
AU - Zunino, Andrea
AU - Khan, Amir
AU - Cupillard, Paul
AU - Mosegaard, Klaus
PY - 2016
Y1 - 2016
N2 - This chapter describes a quantitative approach that integrates data and results from mineral physics, petrological analyses, and geophysical inverse calculations to map geophysical data directly for mantle composition and thermal state. Seismic tomography has proved an important tool to image the inaccessible parts of the Earth. Computation of physical properties using thermodynamic models is described and discussed, and an application of the joint inverse methodology is illustrated in a case study where mantle composition and thermal state beneath continental Australia is determined directly from seismic data. There is a growing consensus that the cause of the imaged wavespeed anomalies not only relates to variations in temperature, but also bears a strong compositional component. However, separation of thermal and chemical effects from seismic wave speeds alone is difficult and is further complicated by the general insensitivity of seismic wave speeds to the density contrasts that are responsible for driving mantle convection.
AB - This chapter describes a quantitative approach that integrates data and results from mineral physics, petrological analyses, and geophysical inverse calculations to map geophysical data directly for mantle composition and thermal state. Seismic tomography has proved an important tool to image the inaccessible parts of the Earth. Computation of physical properties using thermodynamic models is described and discussed, and an application of the joint inverse methodology is illustrated in a case study where mantle composition and thermal state beneath continental Australia is determined directly from seismic data. There is a growing consensus that the cause of the imaged wavespeed anomalies not only relates to variations in temperature, but also bears a strong compositional component. However, separation of thermal and chemical effects from seismic wave speeds alone is difficult and is further complicated by the general insensitivity of seismic wave speeds to the density contrasts that are responsible for driving mantle convection.
KW - Australian subcontinental mantle
KW - Geophysical inverse calculations
KW - Mantle convection
KW - Mineral physics
KW - Petrological analyses
KW - Seismic tomography
KW - Seismic wave speeds
KW - Thermodynamic models
U2 - 10.1002/9781118929063.ch11
DO - 10.1002/9781118929063.ch11
M3 - Book chapter
AN - SCOPUS:85017435499
SN - 9781118929056
SP - 219
EP - 243
BT - Integrated imaging of the earth
PB - Wiley
ER -
ID: 179085910