نتایج جستجو برای: paleostress
تعداد نتایج: 97 فیلتر نتایج به سال:
This research assessed stress regimes and fields in eastern Iran using fault-slip data the tectonic events associated with these changes. Our analysis of brittle structures Shekarab Mountains revealed significant changes from late Cretaceous to Quaternary. Reconstructing age sense fault movements showed that during Cretaceous, direction maximum horizontal axes (?1) under a compressional regime ...
The late Miocene sandstone intrusions of northern Santa Cruz County, California, are the largest subaerial exposures of clastic intrusions on earth. The intrusions are sourced from a sandstone, underlying mudstone, accumulated in an outer shelf to upper slope environment. Dikes are the most frequent intrusion type, reach the greatest thickness and tend to strike north-east and dip steeply. One ...
[1] Recent numerical models that couple global mantel circulation with lithosphere dynamics show that growth of the central Andes controls the 30% reduction of convergence velocity between the Nazca and South America plates observed over the past 10 Ma. The increase of gravitational potential energy due to topographic growth is also a major control on the stress pattern. Here we use numerical m...
We present the effect of neotectonics in intracratonic settings as revealed by surface, brittle deformation associated to a regionally-sized shear corridor, which affects Southeastern Brazil. The zone is characterized presence nearly orthogonal fracture sets, interpreted systematic and non-systematic joints often cutting Quaternary deposits. An original methodology fault joint inversion Monte C...
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