Kinematic evolution of the eastern Tethyan Himalaya: constraints from magnetic fabric and structural properties of the Triassic flysch in SE Tibet

2011 ◽  
Vol 349 (1) ◽  
pp. 99-121 ◽  
Author(s):  
Borja Antolín ◽  
Erwin Appel ◽  
Chiara Montomoli ◽  
István Dunkl ◽  
Lin Ding ◽  
...  
Keyword(s):  
Structural Properties ◽  
Magnetic Fabric ◽  
Kinematic Evolution ◽  
Se Tibet ◽  
Tethyan Himalaya

Paleomagnetic evidence for clockwise rotation and tilting in the eastern Tethyan Himalaya (SE Tibet): Implications for the Miocene tectonic evolution of the NE Himalaya

2010 ◽  
Vol 493 (1-2) ◽  
pp. 172-186 ◽  
Author(s):  
Borja Antolín ◽  
Erwin Appel ◽  
Richard Gloaguen ◽  
István Dunkl ◽  
Lin Ding ◽  
...  
Keyword(s):  
Tectonic Evolution ◽  
Clockwise Rotation ◽  
Se Tibet ◽  
Tethyan Himalaya

Cenozoic low temperature cooling history of the Northern Tethyan Himalaya in Zedang, SE Tibet and its implications

2015 ◽  
Vol 643 ◽  
pp. 80-93 ◽  
Author(s):  
Guangwei Li ◽  
Yuntao Tian ◽  
Barry P. Kohn ◽  
Mike Sandiford ◽  
Zhiqin Xu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Cooling History ◽  
History Of ◽  
Se Tibet ◽  
Tethyan Himalaya

Contribution of magnetic fabric to the knowledge of Mesozoic and Cenozoic kinematic evolution in the Central High Atlas

2020 ◽  
Author(s):  
Teresa Román-Berdiel ◽  
Belén Oliva-Urcia ◽  
Antonio M. Casas-Sainz ◽  
Pablo Calvín ◽  
Bennacer Moussaid ◽  
...  
Keyword(s):  
Hysteresis Loops ◽  
Sedimentary Basins ◽  
Magnetic Fabric ◽  
High Atlas ◽  
Main Maximum ◽  
Kinematic Evolution ◽  
Magnetic Carriers ◽  
Standard Specimens ◽  
Central High ◽  
Central High Atlas

<p>Magnetic fabric has become a first-order tool for the study of the evolution of inverted sedimentary basins, as has been demonstrated in the last decade (García-Lasanta et al. 2018 and references therein). Its application is based on its broad and reliable applicability to characterize the structural context of a region where structural markers are often punctually located or scarce. Determining the contribution of basinal (extensional) and compressional (inversion) deformation to the total magnetic fabric is a major issue in understanding the internal deformation underwent by the basin fill.</p><p>The main goal of this work is to integrate the available data of anisotropy of magnetic susceptibility (AMS) performed during the last ten years in the Mesozoic series of the Central High Atlas. It has a total of 645 sites (7477 standard specimens), 484 of them (5657 standard specimens) are measured in the framework of the actual CGL2016-77560-C2-P research project (Spanish Ministry of Science and Innovation), and it has been integrated with 161 sites (1820 standard specimens) obtained in the precedent research projects (CGL2012-38481, CGL2009-08969 and CGL2009-10840). Samples were measured in a KLY3-S Kappabridge (AGICO) susceptometer at the Zaragoza University. Magnetic subfabric analysis were also done (AMS-LT and AARM) for representative selected sites, that allow us to identify anomalous fabrics. Magnetic carriers were determined by carrying out temperature-dependent susceptibility curves (from 40 to 700ºC) combining the susceptibility bridge with a CS-3 furnace, an also by means of the acquisition curves of isothermal remanent magnetization (IRM), backfield curves and hysteresis loops using a variable field translation balance MMVFTB at the Paleomagnetic Laboratory of the Burgos University. Rock magnetic experiments indicate the presence of paramagnetic behavior in most samples, the presence of magnetite as main ferromagnetic contribution, and of hematite in the red beds.</p><p>The application of the ASM has made it possible to obtain data of well-defined foliations and magnetic lines from the analysis of a large number of samples, and therefore representative of the Mesozoic rocks that emerge in the High Central Atlas. Viewing the data as a whole, magnetic ellipsoids can be divided into three main types depending on the orientation of the main axes, and can be related with the kinematic evolution of the Central High Atlas: 1) k<sub>min</sub> normal to bedding and sub-horizontal k<sub>max</sub> with a NW-SE main maximum, which is mainly associated with gentle synclines and can be related to Mesozoic extensional tectonic; 2) k<sub>int</sub> normal to bedding and sub-horizontal k<sub>max</sub> with a NE-SW main maximum, which can be interpreted as modified by compressional tectonics; 3) k<sub>max</sub> normal to bedding, which are located near thrust planes or near the core of narrow and tight anticlines and can be interpreted as related with transport direction or salt tectonics and re-tightening of structures. The predominance of one or another type of fabric varies spatially; so that in the Western and Eastern sectors type 1 fabric dominates (more tan 60% of the samples), whereas in the central sector this percentage  decreases to 48% of the samples.</p>

Cenozoic deformation in the Tethyan Himalaya, SE Tibet: Insights from magnetic fabrics and structural analysis of Upper Triassic flysch

2021 ◽  
pp. 228967
Author(s):  
Xinwen Cao ◽  
Zhiming Sun ◽  
Haibing Li ◽  
Yong Cao ◽  
Baochun Huang ◽  
...  
Keyword(s):  
Structural Analysis ◽  
Upper Triassic ◽  
Magnetic Fabrics ◽  
Se Tibet ◽  
Tethyan Himalaya

Newborn's Preference for Faces

1996 ◽  
Vol 1 (3) ◽  
pp. 200-205 ◽  
Author(s):  
Carlo Umiltà ◽  
Francesca Simion ◽  
Eloisa Valenza
Keyword(s):  
Visual System ◽  
Structural Properties ◽  
Sensory Properties ◽  
Human Face ◽  
System Experiment ◽  
Face Experiment

Four experiments were aimed at elucidating some aspects of the preference for facelike patterns in newborns. Experiment 1 showed a preference for a stimulus whose components were located in the correct arrangement for a human face. Experiment 2 showed a preference for stimuli that had optimal sensory properties for the newborn visual system. Experiment 3 showed that babies directed their attention to a facelike pattern even when it was presented simultaneously with a non-facelike stimulus with optimal sensory properties. Experiment 4 showed the preference for facelike patterns in the temporal hemifield but not in the nasal hemifield. It was concluded that newborns' preference for facelike patterns reflects the activity of a subcortical system which is sensitive to the structural properties of the stimulus.

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