Journal of Geodynamics
Papers 2006
1 page of 201 pages (2,006 results)
#1Samuel Sbaraini (UFRGS: Universidade Federal do Rio Grande do Sul)
#2M. Irene B. Raposo (USP: University of São Paulo)H-Index: 8
Last.Camila R. Tomé (UFRGS: Universidade Federal do Rio Grande do Sul)
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Abstract The study of magnetic fabrics and rock magnetic properties, together with geological and structural mapping, was carried out in a syenite pluton to investigate its shape and emplacement history. The Piquiri Syenite Massif (PSM) is an alkaline pluton which exhibits S >> L magmatic fabric and is interpreted to be part of the last Neoproterozoic post-collisional magmatic episodes in southernmost Brazil. Thermomagnetic curves, hysteresis data and coercivity spectra obtained from representat...
Abstract In this study, we analyse and interpret a new seismic reflection profile across the Xuefengshan Belt (XFSB), South China, to determine the deep structure of this belt and provide insights into collisional orogenic architecture. We identify a deep regional fault located beneath the XFSB, which cuts through the reflection Moho below the belt and is interpreted as representing the collisional boundary between the Yangtze and Cathaysia blocks along the southeastern margin of the belt. We id...
#1Eugenio Carminati (Sapienza University of Rome)H-Index: 31
#2Christian BignamiH-Index: 17
Last.Luca Smeraglia (Sapienza University of Rome)H-Index: 6
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Abstract On August 24th 2016, a Mw 6.0 earthquake started the Amatrice - Norcia (Central Italy) seismic sequence, generated by the extensional tectonics along the Apennines, that had its apex with the Mw 6.5 October 30th mainshock. As a unique documented case reported in Italy, complex surface faulting occurred during both earthquakes along the Mt. Vettore fault. Multiple surface faulting was accompanied at depth by the development of a km-scale normal fault-propagation fold. This fold was chara...
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#1R. Hartmann (CAU: University of Kiel)
#2J. Ebbing (CAU: University of Kiel)
Last.C.P. Conrad (University of Oslo)
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Abstract The pseudo-spectral form of the sea level equation (SLE) requires the approximation of a radially-symmetric visco-elastic Earth. Thus, the resulting predictions of sea level change (SLC) and glacial isostatic adjustment (GIA) often ignore lateral variations in the Earth structure. Here, we assess the capabilities of a Multiple 1D Earth Approach (M1DEA) applied to large-scale ice load components with different Earth structures to account for these variations. In this approach the total S...
#1Pilar Ávila (National University of Cordoba)H-Index: 1
#2Federico M. Dávila (National University of Cordoba)H-Index: 15
Abstract The southernmost South America has been affected by the subduction of an oceanic seismic ridge, which began to subduct below southern Patagonia at ∼14 Ma. This scenario led to the formation of a slab window, which is still active and where hot buoyant asthenospheric mantle produced thermal anomalies and modifications in the lithospheric thicknesses. Meanwhile, from the Patagonian Andes to the Atlantic coast, an outstanding regional surface uplift took place, conducting to a moderated-el...
#1Stefano Tavani (University of Naples Federico II)H-Index: 16
#2Amerigo Corradetti (Texas A&M University at Qatar)H-Index: 6
Last.Stefano Mazzoli (University of Naples Federico II)H-Index: 34
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Abstract Along convergent plate boundaries, the negative buoyancy of the lithosphere pulls the slab into subduction. Bending and offscraping of the downgoing plate are processes occurring at subduction zones and acting against plate motions. These localised dissipative processes cause extensional deformation in the bulge-foredeep region and thrusting and folding in the thrust wedge respectively. Within this framework, widespread early subduction-related extensional structures affecting pre-oroge...
#1C. Benoist (IPGP: Institut de Physique du Globe de Paris)
#2X. Collilieux (IPGP: Institut de Physique du Globe de Paris)
Last.L. Bel (Université Paris-Saclay)
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Abstract It is well known that GNSS permanent station coordinate time series exhibit time-correlated noise. Spatial correlations between coordinate time series of nearby stations are also long-established and generally handled by means of spatial filtering techniques. Accounting for both the temporal and spatial correlations of the noise via a spatiotemporal covariance model is however not yet a common practice. We demonstrate in this paper the interest of using such a spatiotemporal covariance ...
#1Hugo Yepes (National Technical University)H-Index: 23
#2Jean-Mathieu Nocquet (IPGP: Institut de Physique du Globe de Paris)H-Index: 23
Last.Santiago Aguaiza (National Technical University)H-Index: 4
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Abstract In the paper entitled “Two independent real-time precursors of the 7.8 M earthquake in Ecuador based on radioactive and geodetic processes – Powerful tools for an early warning system”, Toulkeridis et al. (2019) claim that they found radiation and GPS signal anomalies before the April 16th 2016 Pedernales earthquake (Ecuador) and that their findings can be used to forecast earthquakes in the medium and short term in active continental margins. Using an extended data set that overlaps To...
#1Mohammad Reza Ghasempour (Shahrekord University)
#2Ali Reza Davoudian (Shahrekord University)H-Index: 7
Last.Kazuo Nakashima (YU: Yamagata University)H-Index: 9
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Abstract The Horjand area is part of the Kashmar-Kerman tectonic zone in the Central Iranian block, where the oldest continental crust of Iran can be found. Mafic igneous rocks associated with sedimentary units (gypsum, shale, limestone, dolomite and sandstone) belong to the magmatism of the Late Neoproterozoic–Early Cambrian Desu Series. Based on petrographic studies, the mafic igneous rocks comprise medium to coarse gabbro, micro-gabbro and hornblende-gabbro. The rocks mainly consist of plagio...
#1Zhenyu Li (CAS: Chinese Academy of Sciences)H-Index: 6
#2DINGLin (CAS: Chinese Academy of Sciences)H-Index: 48
Last.Yahui Yue (CAS: Chinese Academy of Sciences)H-Index: 15
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Abstract The magnitude and timing of deformation in the form of vertical-axis rotation in the eastern Tibetan Plateau and Southeast Asia during the Cenozoic period are the key to understanding the India-Asia collision and subsequent geological processes. Our new paleomagnetic and geochronological data from Myanmar show that the characteristic remanent magnetization (ChRM) mean directions of sedimentary tuffaceous layers (31 effective specimens) and rhyolites (11 paleomagnetic site-mean direction...
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