| DOI: | 10.1002/grl.50887
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| 论文题名: | A short note on the pressure-depth conversion for geophysical interpretation |
| 作者: | Cammarano F.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8563
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| EISSN: | 1944-8294
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| 出版年: | 2013
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| 卷: | 40, 期:18 | | 起始页码: | 4834
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| 结束页码: | 4838
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| 语种: | 英语
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| 英文关键词: | Earth's pressure profile
; geophysical interpretation
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| Scopus关键词: | Density distributions
; geophysical interpretation
; Geophysical observations
; Mantle temperatures
; Oceanic lithosphere
; Preliminary reference earth models
; Pressure profiles
; Seismic velocities
; Earth sciences
; Geophysics
; convergence
; database
; earth pressure
; geophysical method
; lithosphere
; mineral
; numerical model
; physical property
; prediction
; thermal structure
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| 英文摘要: | Databases of material properties based on mineral physics are rapidly becoming an essential tool for interpreting geophysical observations. The conversion of physical properties from pressure to depth is usually based on preliminary reference Earth model. We quantify the error that is introduced with this assumption. The corrected pressure profile is obtained by updating the starting one with the inferred density distribution and iterating until convergence (which is attained in few steps). We show two examples. The first is related to the interpretation of average seismic Earth models. The second refers to the interpretation of a 2-D thermal structure of the oceanic lithosphere as predicted by a half-space cooling model. The effects are overall small, nevertheless important for interpretation since they are systematic, they have a feedback with thermal interpretation and they can shift the location of predicted mineralogical phase transitions that are associated with abrupt density and seismic velocity jumps. For example, variations up to 0.6 GPa at 2500 km depth are obtained by changing the potential mantle temperature of 100 K. © 2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84884322084&doi=10.1002%2fgrl.50887&partnerID=40&md5=592e948e8b604e89448c433d5063b88e
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/5827
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, Copenhagen, Denmark
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| Recommended Citation: | |
Cammarano F.. A short note on the pressure-depth conversion for geophysical interpretation[J]. Geophysical Research Letters,2013-01-01,40(18).
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