Abstract The Paleocene‐early Eocene continental magmatic arc (PECMA) in the Northern Andes is an example of magmatism following a major collisional event. This formed after arc‐continent collision between Caribbean Plate and South American margin at ca. 72 Ma. We used detrital zircon LA‐ICP‐MS CA‐ID‐TIMS geochronology geochemistry to complement limited plutonic record PECMA better characterize ...

geometrically nonlinear governing equations for a plate with linear viscoelastic material are derived. the material model is of boltzmann superposi¬tion principle type. a third-order displacement field is used to model the shear deformation effects. for the solution of the nonlinear governing equations the dynamic relaxation (dr) iterative method together with the finite difference discretizati...

The interaction of the northern Nazca and southwestern Caribbean oceanic plates with northwestern South America (NWSA) collision Panama-Choco arc (PCA) have significant implications on evolution Andes. Based a quantitative kinematic reconstruction Farallon/Farallon-derived plates, we reconstructed subducting geometries beneath NWSA PCA accretion to continent. persistent northeastward migration ...

deformation pattern of the northeastern part of the iranian-arabian collision zone (i.e., mainly sanandaj-sirjan belt or zone) is the main concern of this paper. here, we investigate the stress distribution and displacement pattern of eghlid-deh bid area as affected by the position of zagros suture using a three dimensional mechanical model. the modeled area is located between the zagros thrust...

The process of wave formation at the contact boundary colliding metal plates is a fundamental basis explosive welding technology. In this case, metals are in pseudo-liquid state initial stages process, and from mathematical point view, can be described by compressible multiphase models. work devoted to development three-fluid model based on Baer–Nunziato system equations corresponding numerical...

In this study, the problem of navigation in dynamic and unknown environment is investigated and a navigation method based on force field approach is suggested. It is assumed that the robot performs navigation in...

-The Mesozoic to Eocene sedimentary succession of Hazara Basin dominated by carbonates is characterized by a distinct package of sediments punctuated by a number of diastems, hiatus and unconformities. The Hazara Basin evolved in Hettangian with the development of lagoonal to upper shoreface conditions on the northern margin of northward flying India. It was followed by a thick pile of middle J...

The Ross orogen of Antarctica is one of Earth’s great Phanerozoic mountain belts. It is thought from igneous geochemistry, deformation patterns, and sedimentation history to be the result of late Neoproterozoic and early Paleozoic plate-margin convergence between paleo-Pacifi c oceanic lithosphere and continental lithosphere represented by the composite East Antarctic shield. Convergence along ...

The Himalaya-Tibetan orogen has become the paradigm for continental collision and is central to deciphering continental tectonics. Neogene extension in the orogen is not predicted by plate tectonic theory, and its significance is widely debated. In the Himalaya, north-south extension is restricted to the Southern Tibetan Detachment System (STDS), which juxtaposes the High Himalayan Crystalline ...