New thermochronology data and thermal history modeling from the Canadian Shield show that the Great Unconformity formed there later than elsewhere in North America and may represent another event.
Geochemistry, Geophysics, Geosystems
Posted inResearch Spotlights
Carbonate Standards Ensure Better Paleothermometers
A community effort finds that carbonate standards eliminate the interlaboratory differences plaguing carbonate clumped-isotope thermometry studies.
Posted inNews
A New Tool May Make Geological Microscopy Data More Accessible
PiAutoStage can automatically digitize and send microscope samples to students and researchers on the cheap and from a distance.
Posted inEditors' Highlights
Tracking Excess Nitrogen with Freshwater Mussels
Mussel shell periostracum and carbonate bound organic matter document seasonal variability in the isotopic composition of riverine suspended particulate organic matter.
Posted inEditors' Highlights
Taking the Temperature of Antarctica’s Crust
How do you measure the geothermal heat flux in a continent covered by an ice-sheet? A new study uses correlations of diverse global observables and produces a heat flow map of the entire Antarctica.
Posted inResearch Spotlights
Tracking Trace Elements in the Ganga River
Levels of dissolved trace and heavy metals, which can be toxic, are highly variable across the river basin, concentrating in urban areas with high pollution but diluted by inflow from tributaries.
Posted inEditors' Highlights
Structural Style Controls Crustal Fluid Circulation in Andes
Variations in hot spring geochemistry from adjacent mountain ranges with different styles of faulting highlight the influence of crustal-scale structures on circulating fluids in the Peruvian Andes.
Posted inEditors' Highlights
New Data from Earth’s Largest Non-Volcanic Rift Margin
Seismic reflection images combined with petrological data provide new constraints on the nature of the basement in the enigmatic Australia-Antarctic oceanic-continent transition zone.
Posted inEditors' Highlights
A River Ran Through It
The history of river system in southeast Tibet and Indochina reconstructed using the ages of thousands of zircon sand grains in modern and ancient river sediments.
Posted inEditors' Highlights
A Mechanism for Shallow, Slow Earthquakes in Subduction Zones
Slow earthquakes beneath the accretionary prism updip from the locked portion of a subduction zone can be caused by basaltic blocks embedded in a shale matrix.