A new study that combines constraints from the 2015 Gorkha earthquake, forward models of deforming crust, and thermochronology data gives new insights into the structure of the Himalaya.
Tectonics
What Controlled the Growth of the Southern Central Andes?
Flat-slab subduction appears to have played a minor role in the growth of the Southern Central Andes, with evidence for eastward migrating deformation.
Land Motion Offers Insights into Cascadia Earthquake Cycle
Comparing recent GPS data with a longer record of sea level along the western coast of North America allows researchers to home in on interseismic deformation above the Cascadia megathrust.
Evolution of the Asian Monsoon
Climate and topography change the characteristics of the Asian monsoon over millions of years. These changes affect the region’s climate and topography, and the cycle continues.
A Plate Boundary Emerges Between India and Australia
Bathymetric and seismic data point to a new plate boundary in a fracture-riddled zone beneath the northern Indian Ocean.
Space-Based Data Expand Understanding of Crustal Deformation
Researchers used the largest GPS data set yet to examine deformation of the crust across continental China and its implications for tectonic activity.
New Volcanic Complex Found Below the Southern Tyrrhenian Sea
Researchers have identified a previously unknown volcanic-intrusive complex that originated through the melting of mantle material at the northern edge of the Ionian slab.
Low-angle Normal Fault in Papua New Guinea is Rolling Along
Geologic and geomorphic observations of an active low-angle normal fault reveal a rolling-hinge mechanism accommodating the exhumation of a metamorphic core complex in Papua New Guinea.
The Blob Causing Earthquakes
Geophysicists discover that a “blob” of rock sinking into the mantle is the force triggering earthquakes in the Hindu Kush.
Resolving a Cordilleran Conundrum
A novel geophysical technique documents the existence of a “missing” fault, along which major displacement could have occurred during the Cretaceous on North America’s northwest margin.
