globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.epsl.2018.09.039
Scopus记录号: 2-s2.0-85054458631
论文题名:
Medium and long period ground oscillatory pattern inferred by borehole tiltmetric data: New perspectives for the Campi Flegrei caldera crustal dynamics
作者: De Lauro E.; Petrosino S.; Ricco C.; Aquino I.; Falanga M.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 504
起始页码: 21
结束页码: 29
语种: 英语
英文关键词: Campi Flegrei caldera ; crustal response to earth tides ; tidal tilting
Scopus关键词: Deformation ; Independent component analysis ; Stress concentration ; Tides ; Campi Flegrei ; Deformation pattern ; Earth tide ; External excitation ; Normal deformations ; Oscillatory patterns ; Polarization direction ; tidal tilting ; Structural geology
英文摘要: We analyse tiltmetric time series recorded at borehole instruments recently installed at Campi Flegrei caldera (Italy), a volcanic area subjected to the phenomenon of bradyseism, which consists in fast ground uplift phases alternated to slow subsidence. For the first time, we evaluate the crustal response in terms of ground tilting of the entire caldera to external excitations such as long/medium-period tidal constituents, by adopting Independent Component Analysis. Indeed, we recognize diurnal (solar) and long-period (fortnightly and monthly) components, superimposed to the normal deformation trend of the area. They show well defined polarization directions and are associated with an oscillatory deformation pattern with the same periodicity of the corresponding tidal constituents. The comparison with the local geology evidences that the tidal tilting is controlled by the local stress field distribution and the rheology, thus inducing structural and thermoelastic site effects. © 2018 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109607
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Università degli Studi di Roma Tre, Dipartimento di Architettura, Rome, Italy; Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Napoli, Osservatorio Vesuviano, Naples, Italy; Università degli Studi di Salerno, Dipartimento di Ingegneria dell'Informazione ed Elettrica e Matematica applicata/DIEM, Fisciano, Italy

Recommended Citation:
De Lauro E.,Petrosino S.,Ricco C.,et al. Medium and long period ground oscillatory pattern inferred by borehole tiltmetric data: New perspectives for the Campi Flegrei caldera crustal dynamics[J]. Earth and Planetary Science Letters,2018-01-01,504
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