Susan L. Beck was awarded the 2020 Walter H. Bucher Medal at the virtual AGU Fall Meeting in December. The medal is for “original contributions to the basic knowledge of the crust and lithosphere.”
Earth’s crust
Probing the Age of the Oldest Ocean Crust in the Pacific
A new study extends the calibration of the Mesozoic Sequence down to the Mid Jurassic with multiscale marine magnetic anomaly data, demonstrating extraordinarily high reversal frequency.
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.
Deconvolving What Lies Beneath the Himalaya
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.
Cratons Mark the Spot for Mineral Bonanzas
A new map of the thickness of Earth’s lithosphere contains clues to large deposits of key metals.
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.
Unexpected Oceanic Lithosphere-Asthenosphere P-wave Velocities
A peak in seismic P-wave – S-wave velocity ratios at the lithosphere-asthenosphere boundary beneath old Pacific lithosphere requires an additional property besides temperature as an explanation.
Search for MH370 Revealed Ocean Crust Waves
Efforts to recover the missing airplane produced high-resolution bathymetry of the southern Indian Ocean that raises new ideas about how ocean crust forms.
Meteoric 10Be Reveals Lithological Control on Erosion Rates
New meteoric 10Be data quantify fast erosion of slates in the Zhuoshui River catchment in Taiwan and demonstrate the influence of lithology on landscape steepness.
Cold Cuts: Glaciers Sculpt Steep Peaks
In environments raked by glaciers, tall peaks like Denali still survive, held up by surprisingly thin crust.
