Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/9544
DC Field | Value | Language |
---|---|---|
dc.contributor.authorall | Smeraglia, L.; Uni Sapienza | en |
dc.contributor.authorall | Trippetta, F.; Uni Sapienza | en |
dc.contributor.authorall | Carminati, E.; CNR | en |
dc.contributor.authorall | Mollo, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.date.accessioned | 2015-04-17T08:53:26Z | en |
dc.date.available | 2015-04-17T08:53:26Z | en |
dc.date.issued | 2014 | en |
dc.identifier.uri | http://hdl.handle.net/2122/9544 | en |
dc.description.abstract | Petrophysical properties of rocks and their applicability at larger scale are a challenging topic in Earth sciences. Petrophysical properties of rocks are severely affected by boundary conditions, rock fabric/microstructure, and tectonics that require a multiscale approach to be properly defined. Here we (1) report laboratory measurements of density, porosity, permeability, and P wave velocities at increasing confining pressure conducted on Miocene foredeep sandstones (Frosinone Formation); (2) compare the laboratory results with larger-scale geophysical investigations; and (3) discuss the effect of thrusting on the properties of sandstones. At ambient pressure, laboratory porosity varied from 2.2% to 13.8% and P wave velocities (Vp) from 1.5 km/s to 2.7 km/s. The P wave velocity increased with confining pressure, reaching between 3.3 km/s and 4.7 km/s at 100 MPa. In situ Vp profiles, measured using sonic logs, matched the ultrasonic laboratory measurement well. The permeability varied between 1.4 × 10 15m2 and 3.9 × 10 15m2 and was positively correlated with porosity. The porosity and permeability of samples taken at various distances to the Olevano–Antrodoco fault plane progressively decreased with distance while P wave velocity increased. At about 1 km from the fault plane, the relative variations reached 43%, 65%, and 20% for porosity, permeability, and P wave velocity, respectively. This suggests that tectonic loading changed the petrophysical properties inherited from sedimentation and diagenesis. Using field constraints and assuming overburden-related inelastic compaction in the proximity of the fault plane, we conclude that the fault reached the mechanical condition for rupture in compression at differential stress of 64.8 MPa at a depth of 1500 m. | en |
dc.language.iso | English | en |
dc.publisher.name | American Geophysical Union | en |
dc.relation.ispartof | Journal of geophysical research - solid earth | en |
dc.relation.ispartofseries | 12/119 (2014) | en |
dc.subject | Petrophysical properties of sandstone | en |
dc.title | Tectonic control on the petrophysical properties of foredeep sandstone in the Central Apennines, Italy | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 9077-9094 | en |
dc.subject.INGV | 04. Solid Earth::04.04. Geology::04.04.09. Structural geology | en |
dc.identifier.doi | 10.1002/2014JB011221 | en |
dc.description.obiettivoSpecifico | 2IT. Laboratori sperimentali e analitici | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | open | en |
dc.relation.issn | 0148-0227 | en |
dc.contributor.author | Smeraglia, L. | en |
dc.contributor.author | Trippetta, F. | en |
dc.contributor.author | Carminati, E. | en |
dc.contributor.author | Mollo, S. | en |
dc.contributor.department | Uni Sapienza | en |
dc.contributor.department | Uni Sapienza | en |
dc.contributor.department | CNR | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Uni Sapienza | - |
crisitem.author.dept | Università di Roma "La Sapienza" | - |
crisitem.author.orcid | 0000-0001-8336-2194 | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | |
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00_Smeraglia et al._2014_J Geophysical Research_119_9077-9094.pdf | 2.79 MB | Adobe PDF | View/Open |
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