Showing papers in "Tectonophysics in 2014"

TL;DR: The surface uplift history of the Tibetan Plateau (TP) offers a key testing ground for evaluating models of collisional tectonics and holds important implications for processes ranging from global cooling to the onset of the Asian monsoon as mentioned in this paper.

TL;DR: Li et al. as discussed by the authors presented a new map of the Chinese mainland and adjacent areas based on a compilation of previously published data, which showed a large variation, from a thickness of less than 30 kilometers in the Mesozoic basin of eastern China to over 80 kilometres in the Tibetan plateau.

TL;DR: In this paper, the authors define and test a unifying plate tectonic driving mechanism that explains the numerous petrological, geophysical, and geological features that characterize the destruction of cratonic lithospheric roots.

TL;DR: In this article, the authors reviewed about 140 studies on structure, tectonics, volcanism, seismicity, triggering mechanisms, and gas-isotope geochemistry focused on the earthquake swarms from this area with the aim to build a complex image of the ongoing processes and find a possible link between activity of the mantle-derived fluids and the earthquake swarm.

TL;DR: In this article, the authors grouped the geological and geophysical phenomena associated with water in the slab into three different categories: those related to 1) the storage of water at the surface, 2) the subduction of a hydrated slab and 3) its dehydration that ultimately leads to mantle regassing.

TL;DR: Two ophiolitic melange belts (SCTOB) and the South Tianshan Ophiolite Belt (STOB) extend almost parallel to the Central Asian Orogenic Belt (CAOB).

TL;DR: In this paper, a minimum complexity tectonic reconstruction based on published and new basin opening models, depicts how the Scotia Sea grew by Cenozoic plate divergence, dismembering a Jurassic sheared margin of Gondwana.

TL;DR: A comprehensive review of previous investigations of spatial and temporal variations in b-value, including their classification and possible causes, can be found in this paper, which suggests that statistically significant b-variations occur globally on various timescales, including annual, monthly and perhaps diurnal.

TL;DR: The Dongchuan Group as mentioned in this paper consists of the Yinmin, Luoxue, Etouchang and Luzhijiang formations from the base upward and is a rift-related sedimentary sequence that was associated with the breakup of the supercontinent Columbia and is particularly important for the possible linkage between the Yangtze Block and other continents in Columbia.

TL;DR: The Parnaiba Basin is a large Paleozoic syneclise in northeastern Brazil underlain by Precambrian crystalline basement, which comprises a complex lithostructural and tectonic framework formed during the Neoproterozoic-Eopaleozoic Brasiliano-Pan African orogenic collage as discussed by the authors.

TL;DR: In this article, the Cenozoic tectonic subsidence of the deepwater area in the Pearl River Mouth Basin, northern South China Sea is studied by subsidence analysis via backstripping calculations based on data of newly interpreted sequence boundaries.

TL;DR: Zhang et al. as discussed by the authors focused on the Cretaceous volcanic rocks in northwestern Zhejiang Province and determined that the juvenile component involvement gradually occurred from the inland to the coast under an enhanced lithospheric extensional tectonic setting.

TL;DR: In this paper, the Moho is delineated as a relatively flat boundary between a strongly reflective lower crust and a transparent mantle at a depth of ~40-45 km (~ 14.5 s two-way travel time), which is in agreement with the refraction data recorded along the same profile.

TL;DR: The characteristics of the Arctic lithosphere and the principal tectonic events which have shaped it are reviewed in this paper, where the current state-of-knowledge associated with the crust, crustal-scale discontinuities, and their ages, as well as knowledge of the lithosphere as a whole from geophysical data, permits the division of Arctic continental lithosphere into discrete domains.

TL;DR: In this article, a modified spectral analysis technique, the de-fractal spectral depth method, is developed and used to estimate the top and bottom boundaries of the magnetised layer.

TL;DR: In this paper, the authors investigated the evolution of the western Myanmar arc and the potential along-strike variation of subduction-related magmatism by analyzing U-Pb and Hf isotopes of detrital zircons from the Chindwin Basin in western Myanmar.

TL;DR: In this paper, the authors considered the Kunbei and Qimen Tagh fault systems as former western segments of the Kunlun fault once located further south in the present-day location of that fault.

TL;DR: In this article, the authors proposed a new lithospheric scenario for the regional evolution in the Aegean-Anatolian-Near East region that combines a recent compilation of surface geology data with the structure of the upper mantle.

TL;DR: In this article, the relative contribution of gravity spreading and gravity gliding to the deformation and energy loss of gravity-driven seafloor topology is analyzed using vector analysis, and the results confirm that most natural examples exhibit mixed-mode behaviour.

TL;DR: In this article, the authors collected precise leveling data observed in the period of 1970 to 2012 around the eastern margin of the Tibetan Plateau, and process the data to acquire present day crustal vertical velocity field.

TL;DR: In this paper, the magnetic resistivity cross-section of the Himalayan wedge and the underthrusting Indian plate is analyzed and it is suggested that in the Himalaya collision belt, like the active subduction zone, the active seismic plane forming seat of large and great earthquakes is located a few kilometers above the top of the downgoing plate.

TL;DR: In this article, a grain-based heterogeneous numerical model is developed and applied for Lac du Bonnet granite, which takes into account elastic grain and elasto-plastic contact deformation, inter-and intragranular fracturing and lifetime prediction on basis of subcritical crack growth.

TL;DR: In this paper, the authors quantitatively analyse the long profiles of rivers that drain southwards across the South Atlas Fault (SAF), a thrust fault that forms the southern margin of the High Atlas Mountains in Morocco, to derive new data on the Late Cenozoic activity of this fault system.

TL;DR: Zhang et al. as mentioned in this paper reconstructed early Mesozoic tectonic settings of the northern North China craton based on investigations of Triassic-Middle Jurassic successions and age determinations of some lithostratigraphic units and dikes cutting tilted early mesozoic strata.

TL;DR: In this article, the authors describe the main seismological characteristics of this seismic sequence and, relying on refined earthquakes location, make inferences on the geometry of the thrust system responsible for the two strongest shocks.

TL;DR: In this article, a collection of unaltered mantle xenoliths was found to contain pure magnetite inclusions in olivine and pyroxene formed in equilibrium with the host silicate.

TL;DR: The western part of the Aegean region includes several Neogene basins containing volcano-sedimentary successions as mentioned in this paper, which are interpreted to be developed in response to exhumation of the Menderes Extensional Metamorphic Complex (MEMC).

TL;DR: In this article, the role of reactivation of ductile Neoproterozoic shear zones in the deposition and deformation of post-rift sedimentary deposits in the Paraiba Basin in northeastern Brazil is investigated.

TL;DR: In this paper, the authors carried out detailed tectonic investigations, seismostratigraphic analysis and paleomagnetic dating of the thrust-fold belt in the Kuqa depression at the southern Tian Shan flank.