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Mulugeta Dugda and Farzad Moazzami
In computational seismology, receiver functions represent the impulse response for the earth structure beneath a seismic station and, in general, these are functionals that show several seismic phases in the time-domain related to discontinuities within ...
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Gonzalo Yáñez,Mauricio Muñoz,Valentina Flores-Aqueveque,Andrés Bosch
Pág. 147 - 172
A recording of 1,115 gravimetric stations, the review of 368 wells, and the petrophysics measurements of 106 samples from representative outcrops have been used for a comprehensive geological/geophysical study of Santiago Basin. 2.5D and 3D gravimetric m...
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Mirella Piña-Gauthier,Luis E. Lara,Klaus Bataille,Andrés Tassara,Juan C. Báez
Pág. 310 - 323
GPS data from stations around the Chaitén Volcano show a co-eruptive pattern of inflation and deflation that correlates well with the estimated effusion rate during the 2008-2009 eruption. Axisymmetric radial deflation is coeval with periods of fast dome...
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Nan Chen, Chun-Feng Li, Yong-Lin Wen, Peng Wang, Xiu-Lian Zhao and Xiao-Li Wan
In this study, we process four new multichannel reflection seismic profiles acquired in 2015 and 2016 in the continent?ocean transition zone (COT) of the northern South China Sea (SCS). We apply a multi-domain, progressive, and seabed-controlled denoisin...
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Dharmendra Kumar, Arun Singh and Mohammad Israil
The magnetotelluric (MT) method is one of the useful geophysical techniques to investigate deep crustal structures. However, in hilly terrains, e.g., the Garhwal Himalayan region, due to the highly undulating topography, MT responses are distorted. Such ...
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Martin D. Clark, Elizaveta Kovaleva, Matthew S. Huber, Francois Fourie and Chris Harris
Better characterization features borne from long-term crustal modification processes is essential for understanding the dynamics of large basin-forming impact structures on Earth. Within the deeply eroded 2.02 Ga Vredefort Impact Structure in South Afric...
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Gregory P. De Pascale
Pág. 175 - 183
Understanding the location and nature of Quaternary active crustal faults is critical to reduce both the impact of fault rupture and strong ground motions hazards (when these faults rupture causing earthquakes). It is also important for understanding how...
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Yuxiang Tang, Xinmei Xiang, Jing Sun and Yongshan Zhang
This study presents a generic model for constructing shear-wave velocity (VS) profiles for various conditions that can be used for modeling the upper-crustal modification effects in ground motion simulations for seismic hazard analysis. The piecewise P-w...
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Luiz Gamboa, André Ferraz, Rui Baptista and Eugênio V. Santos Neto
Exploratory work for hydrocarbons along the southeastern Brazilian Margin discovered high concentrations of CO2 in several fields, setting scientific challenges to understand these accumulations. Despite significant progress in understanding the conseque...
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Athanasius Cipta, Phil Cummins, Masyhur Irsyam and Sri Hidayati
We use earthquake ground motion modelling via Ground Motion Prediction Equations (GMPEs) and numerical simulation of seismic waves to consider the effects of site amplification and basin resonance in Jakarta, the capital city of Indonesia. While spectral...
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Edoardo Del Pezzo, Angel De La Torre, Francesca Bianco, Jesús Ibanez, Simona Gabrielli and Luca De Siena
Seismic coda measurements retrieve parameters linked to the physical characteristics of rock volumes illuminated by high frequency scattered waves. Space weighting functions (SWF) and kernels are different tools that model the spatial sensitivity of coda...
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Gabriel A. Arcuri and Alan P. Dickin
New whole-rock lead (Pb) isotope analyses are presented in this study for granitoid orthogneisses from the Southwest Grenville Province in Ontario and Western Quebec. These data are used to test the location of a cryptic Archean-Proterozoic suture propos...
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Fernando G. Sardi,Pablo Grosse,Mamoru Murata,Rafael Pablo Lozano Fernández
Pág. 229 - 248
The A-type Huaco granite pluton of the Velasco range (Sierras Pampeanas of northwest Argentina) is formed by three coeval granitic facies and contains subordinate coeval-to-late facies, as well as enclaves, dikes and stocks that show different temporal r...
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Wasim Javed,Anthony S. Wexler,Ghulam Murtaza,Hamaad R. Ahmad,Shahzad M. A. Basra
Pág. 99 - 116
Spatial and temporal variations in aerosol particulate matter (PM) were investigated for distribution over the four seasons of chemical constituents and particle size fractions in Faisalabad, Pakistan from June 2012 to April 2013. At nine sampling sites,...
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Jose Piquer,Juan Carlos Castelli,Reynaldo Charrier,Gonzalo Yanez
Pág. 32 - 53
The Cenozoic geologic evolution of the central part of the Cordillera Principal at ~35°S, is intimately related to the geodynamic evolution of deep crustal structures, which during different stages controlled the deposition of volcanosedimentary sequence...
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Mauricio Calderon,Francisco Herve,Umberto Cordani,Hans-Joachim Massonne
Pág. 249 - 276
A Late Jurassic seafloor remnant of the Rocas Verdes basin in southern Chile, the Sarmiento Complex {ca. 52°S), bears lithological layers with bimodal meta-igneous rocks appropriate for a comprehensive investigation of magma genesis in part of a lateral ...
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Stefan Lüth,Peter Wigger
Pág. 83 - 101
The results of a seismic refraction profile across the Southern Andes at 39°S from the Chilean Pacific coast to the Argentinean Neuquén Basin are presented here. A 2-D crustal velocity model was derived from traveltime forward modeling of the correlated ...
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Andrew C. Kurtz,Suzanne M. Kay,Reynaldo Charrier,Edward Farrar
Pág. 75 - 90
ABSTRACT. 40Ar/39Ar mineral dating and whole rock chemical analyses of Miocene to Pliocene Andean granitoids near the El Teniente copper deposit (34°S) provide new evidence for rapid Neogene exhumation. This exhumation is attributed to crustal thickening...
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Andrew C. Kurtz,Suzanne M. Kay,Reynaldo Charrier,Edward Farrar
Pág. 75 - 90
ABSTRACT. 40Ar/39Ar mineral dating and whole rock chemical analyses of Miocene to Pliocene Andean granitoids near the El Teniente copper deposit (34°S) provide new evidence for rapid Neogene exhumation. This exhumation is attributed to crustal thickening...
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Athanasius Cipta, Phil Cummins, Masyhur Irsyam and Sri Hidayati
We use earthquake ground motion modelling via Ground Motion Prediction Equations (GMPEs) and numerical simulation of seismic waves to consider the effects of site amplification and basin resonance in Jakarta, the capital city of Indonesia. While spectral...
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