DOI: 10.1002/2016GL071140
论文题名: A three-dimensional QP imaging of the shallowest subsurface of Campi Flegrei offshore caldera, southern Italy
作者: Serlenga V. ; de Lorenzo S. ; Russo G. ; Amoroso O. ; Garambois S. ; Virieux J. ; Zollo A.
刊名: Geophysical Research Letters
ISSN: 0094-8445
EISSN: 1944-8176
出版年: 2016
卷: 43, 期: 21 起始页码: 11209
结束页码: 11218
语种: 英语
英文关键词: attenuation tomography
; saturated shallow sediments
Scopus关键词: Sediments
; Seismic waves
; Submarine geology
; Attenuation tomography
; Fluid saturations
; Marine sediments
; Quality factors
; Saturated rock
; Southern Italy
; Tomographic images
; Tomographic inversion
; Tomography
英文摘要: To improve the knowledge of the shallowest subsurface of Campi Flegrei caldera, a 3-D P wave attenuation tomography of the area was performed. We analyzed about 18,000 active seismic traces, which provided a data set of 11,873 Δt* measurements, e.g., the differential travel times to quality factor ratios. These were inverted through an adapted tomographic inversion procedure. The 3-D tomographic images reveal an average QP about 70, interpreted as water-saturated volcanic and marine sediments. An arc-like, low-QP structure at 0.5–1 km depths was interpreted as a densely fractured, fluid-saturated rock volume, well matching the buried rim of Campi Flegrei caldera. The spatial distribution of high- and low-QP bodies in the inner caldera is correlated with low-Vp values and may reflect either the differences in the percentage of fluid saturation of sediments or the presence of vapor state fluids beneath fumarole manifestations. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84999006666&doi=10.1002%2f2016GL071140&partnerID=40&md5=2f63743d76930de412d1a3e7a34ce264
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9408
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Dipartimento di Fisica “Ettore Pancini”, University of Napoli Federico II, Naples, Italy
Recommended Citation:
Serlenga V.,de Lorenzo S.,Russo G.,et al. A three-dimensional QP imaging of the shallowest subsurface of Campi Flegrei offshore caldera, southern Italy[J]. Geophysical Research Letters,2016-01-01,43(21).