Regional geologic mapping and gravity data reveal a variety of characteristics that must be accounted for in models for the formation and evolution of Western Ishtar Terra and Lakshmi Planurn, including: 1) high elevation, 2) plateau-shaped profile, 3) abnormally steep bounding slopes, 4) foredeeps, 5) polygonal outline, 6) adjacent orogenic belts, 7) volcanic plains, 8) plains emplaced synchro...

Erosion of orogenic mountain ranges exhumes deeply buried rocks and controls weathering, climate, and sediment production and transport at a variety of scales. Erosion also affects the topographic form and kinematics of orogens, and it may provide dynamic feedbacks between climate and tectonics by spatially focused erosion and rock uplift. Thermochronology measures the timing and rates at which...

Integration of geological and geophysical data from the active Banda orogen reveals important variations in structural style with time that reconcile rival hypotheses for the tectonic evolution of the Banda arc. These variations indicate the temporal distribution of strain in the collision zone by vertical and horizontal structural restorations of the collision through time. In the western part...

The following report, by Peter J. Wyllie, Department of Geochemistry and Mineral­ ogy, Pennsylvania State University, is based on a paper "presented by the author at the Second Western National Meeting of the American Geophysical Union, held at Stan­ ford University, December 1962. A similar, 'more-detailed version of this paper has been published in the Journal of Geophys­ ical Research, Augus...

a r t i c l e i n f o Precipitation in the form of rain and snowfall throughout the Himalaya controls river discharge and erosional processes and, thus, has a first-order control on the fluvial sediment flux. Here, we analyze daily precipitation data (1998–2007) of 80 weather stations from the northwestern Himalaya in order to decipher temporal and spatial moisture gradients. In addition, suspe...

In orogenic belts, a basal décollement zone often develops at depth to accommodate the shortening due to folding and thrusting of the sedimentary cover. In the Early Mesozoic intracontinental Xuefengshan Belt of South China, such a décollement zone is exposed in the core of anticlines formed by the emplacement of the late-orogenic granitic plutons. The detailed, multi-scale structural analysis ...

a r t i c l e i n f o Keywords: Eclogite HP granulite Paired metamorphic belts UHPM UHTM The modern plate tectonics regime is characterized by a duality of thermal environments, one representing the subduction zone and the other representing the arc–backarc or orogenic hinterland. This duality is the hallmark of one-sided (asymmetric) subduction, and the characteristic imprint of one-sided subd...