DOI: 10.1002/2014GL060070
论文题名: Seismic imaging of a fluid storage in the actively extending Apennine mountain belt, southern Italy
作者: Amoroso O. ; Ascione A. ; Mazzoli S. ; Virieux J. ; Zollo A.
刊名: Geophysical Research Letters
ISSN: 0094-10579
EISSN: 1944-10310
出版年: 2014
卷: 41, 期: 11 起始页码: 3802
结束页码: 3809
语种: 英语
英文关键词: active fault system
; fluid reservoir
; three-dimensional seismic tomography
Scopus关键词: Earthquakes
; Lithology
; Nucleation
; Petroleum reservoir engineering
; Seismic waves
; Structural geology
; Wave propagation
; Active fault
; Crustal structure
; Earthquake nucleation
; Fluid accumulation
; Fluid reservoirs
; P- and S-wave velocities
; Pore fluid pressure
; Seismic tomography
; Faulting
; active fault
; crustal structure
; mountain
; nucleation
; permeability
; pore pressure
; pore space
; seismic method
; wave modeling
; wave velocity
; Apennines
; Italy
英文摘要: A picture of the upper crustal structure of the Irpinia active faults system in southern Italy was obtained by combining new geological evidences, lithological properties, and microseismicity distribution. P and S wave velocity models indicate high VP/VS and low VP× VS values, suggesting fluid accumulation within a ~15km wide rock volume where intense microseismicity is located. The 1980 Irpinia, Ms 6.9, earthquake nucleated within the same fault-bounded volume. We suggest that concentration of background seismicity is mainly controlled by high pore fluid pressure. Its increase in fluid-filled cracks around major faults leads to earthquakes' nucleation. Seismic pumping along major faults carries fluids through the conduit system represented by the intensely fractured damage zone. Conversely, the cross-fault barrier behavior of the low-permeability fault core leads to pore fluid pressures building up within the fault-bounded block, thus producing a positive feedback triggering earthquake nucleation within the volume, which behaves as an "earthquake reservoir." © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901728340&doi=10.1002%2f2014GL060070&partnerID=40&md5=68f9283f971a8b4da55ff7ce1ea46a84
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7843
Appears in Collections: 气候减缓与适应
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作者单位: Department of Physics, University of Naples Federico II, Naples, Italy
Recommended Citation:
Amoroso O.,Ascione A.,Mazzoli S.,et al. Seismic imaging of a fluid storage in the actively extending Apennine mountain belt, southern Italy[J]. Geophysical Research Letters,2014-01-01,41(11).