Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/11881
DC Field | Value | Language |
---|---|---|
dc.date.accessioned | 2018-05-04T09:00:50Z | en |
dc.date.available | 2018-05-04T09:00:50Z | en |
dc.date.issued | 2017-08-24 | en |
dc.identifier.uri | http://hdl.handle.net/2122/11881 | en |
dc.description.abstract | We present crustal anisotropy estimates constrained by shear wave splitting (SWS) analysis using local earthquakes in the Shillong plateau and Assam valley area, North East India (NE India) region. Splitting parameters are determined using an automated cross-correlation (CC) method. We located 330 earthquakes recorded by 17 broadband seismic stations during 2001–2014 in the study area. Out of these 330 events, seismograms of 163 events are selected for the SWS analysis. Relatively small average delay times (0.039–0.084 s) indicate existence of moderate crack density in the crust below the study area. It is found that fast polarization directions vary from station to station depending on the regional stress system as well as geological conditions. The spatial pattern of crustal anisotropy in the area is controlled mostly by tectonic movement of the Indian plate towards NE. Presence of several E-W and N-S trending active faults in the area also play an important role on the observed pattern of crustal anisotropy. | en |
dc.language.iso | English | en |
dc.relation.ispartof | Tectonophysics | en |
dc.relation.ispartofseries | /717 (2017) | en |
dc.title | Crustal seismic anisotropy beneath Shillong plateau - Assam valley in North East India: Shear-wave splitting analysis using local earthquakes | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 425-432 | en |
dc.identifier.doi | 10.1016/j.tecto.2017.08.027 | en |
dc.description.obiettivoSpecifico | 7T. Struttura della Terra e geodinamica | en |
dc.description.journalType | JCR Journal | en |
dc.contributor.author | Sharma, Antara | en |
dc.contributor.author | Baruah, Santanu | en |
dc.contributor.author | Piccinini, Davide | en |
dc.contributor.author | Saikia, Sowrav | en |
dc.contributor.author | Phukan, Manoj K. | en |
dc.contributor.author | Chetia, Monisha | en |
dc.contributor.author | Kayal, J. R. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, 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 | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.dept | School of Oceanographic Studies, Jadavpur University, Kolkata 700016, India | - |
crisitem.author.orcid | 0000-0002-6643-1909 | - |
crisitem.author.orcid | 0000-0002-1826-646X | - |
crisitem.author.orcid | 0000-0003-4320-3417 | - |
crisitem.author.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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21-s2.0-S0040195117303487-main.pdf | 1.9 MB | Adobe PDF |
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