Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/4638
DC Field | Value | Language |
---|---|---|
dc.contributor.authorall | Pittarello, L.; Università degli Studi di Padova | en |
dc.contributor.authorall | Di Toro, G.; Università degli Studi di Padova | en |
dc.contributor.authorall | Bizzarri, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia | en |
dc.contributor.authorall | Pennacchioni, G.; Università degli Studi di Padova | en |
dc.contributor.authorall | Hadizadeh, J.; Department of Geography & Geosciences, University of Louisville, Louisville, Kentucky | en |
dc.contributor.authorall | Cocco, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.date.accessioned | 2008-12-12T08:36:38Z | en |
dc.date.available | 2008-12-12T08:36:38Z | en |
dc.date.issued | 2008-02-19 | en |
dc.identifier.uri | http://hdl.handle.net/2122/4638 | en |
dc.description.abstract | The determination of the earthquake energy budget remains a challenging issue for Earth scientists, as understanding the partitioning of energy is a key towards the understanding the physics of earthquakes. Here we estimate the partition of the mechanical work density into heat and surface energy (energy required to create new fracture surface) during seismic slip on a location along a fault. Earthquake energy partitioning is determined from field and microstructural analyses of a fault segment decorated by pseudotachylyte (solidified friction-induced melt produced during seismic slip) exhumed from a depth of ~10 km—typical for earthquake hypocenters in the continental crust. Frictional heat per unit fault area estimated from the thickness of pseudotachylytes is ~27 MJ m−2. Surface energy, estimated from microcrack density inside clast (i.e., cracked grains) entrapped in the pseudotachylyte and in the fault wall rock, ranges between 0.10 and 0.85 MJ m−2. Our estimates for the studied fault segment suggest that ~97–99% of the energy was dissipated as heat during seismic slip. We conclude that at 10 km depth, less than 3% of the total mechanical work density is adsorbed as surface energy on the fault plane during earthquake rupture. | en |
dc.language.iso | English | en |
dc.publisher.name | Elsevier | en |
dc.relation.ispartof | Earth and Planetary Science Letters | en |
dc.relation.ispartofseries | /269 (2008) | en |
dc.subject | Fracture energy | en |
dc.title | Energy partitioning during seismic slip in pseudotachylyte-bearing faults | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 131 - 139 | en |
dc.identifier.URL | http://abierre.df.unibo.it | en |
dc.subject.INGV | 04. Solid Earth::04.01. Earth Interior::04.01.04. Mineral physics and properties of rocks | en |
dc.identifier.doi | 10.1016/j.epsl.2008.01.052 | en |
dc.description.obiettivoSpecifico | 2.3. TTC - Laboratori di chimica e fisica delle rocce | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Pittarello, L. | en |
dc.contributor.author | Di Toro, G. | en |
dc.contributor.author | Bizzarri, A. | en |
dc.contributor.author | Pennacchioni, G. | en |
dc.contributor.author | Hadizadeh, J. | en |
dc.contributor.author | Cocco, M. | en |
dc.contributor.department | Università degli Studi di Padova | en |
dc.contributor.department | Università degli Studi di Padova | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia | en |
dc.contributor.department | Università degli Studi di Padova | 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 | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Università degli Studi di Padova | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Bologna, Bologna, Italia | - |
crisitem.author.dept | Dipartimento di Geoscienze, Università di Padova, Padova, IT | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.orcid | 0000-0002-6618-3474 | - |
crisitem.author.orcid | 0000-0001-8313-4124 | - |
crisitem.author.orcid | 0000-0001-6798-4225 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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08040815394618192.pdf | 3.32 MB | Adobe PDF |
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