The present-day topography of the European Alps shows evidence of intense glacial reshaping. However, significant questions regarding Alpine landscape evolution during glaciations still persist. In this study, we focus on the Rhône valley (Swiss Alps), and use a numerical model to estimate patterns and magnitudes of glacial erosion. Comparing modeling results on a reconstructed pre-glacial topo...

Changes in deep ocean ventilation are commonly invoked as the primary cause of lower glacial atmospheric CO2. The water mass structure of the glacial deep Atlantic Ocean and the mechanism by which it may have sequestered carbon remain elusive. Here we present neodymium isotope measurements from cores throughout the Atlantic that reveal glacial-interglacial changes in water mass distributions. T...

First posted March 14, 2023 For additional information, contact: Director, Central Midwest Water Science CenterU.S. Geological Survey405 North Goodwin Urbana, IL 61801Contact Pubs Warehouse Des Moines Works (DMWW) is one of the largest water providers in Iowa and as population growth continues, demand for drinking increasing. DMWW uses groundwater surface raw sources to supply City surrounding ...

a State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan, Hubei, 430074, PR China b State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, Hubei, 430074, PR China c Department of Geology, University of Cincinnati, Cincinnati, OH 45221-0013, USA d Department Geology and Geophysics, Yale University,...

The Quaternary Geology of the eastern South Bend 30- x 60-Minute Quadrangle in Indiana represents landforms and near-surface sediments deposited during Wisconsin Episode, Late Pleistocene. Sediments reflect interplay between Saginaw Michigan Lobes Laurentide Ice Sheet. A relatively shallow, buried pre-Wisconsin mid-Wisconsin morphology has been overridden by advances leading to Last Glacial Max...

The Trafalgar 7.5-minute quadrangle is situated near the maximum limit of Wisconsin Episode glacial deposits insouthwestern Johnson County. Till age (Trafalgar Formation) dominates surficial geology thequadrangle. Minor areas outwash and colluvium are found in valleys former meltwater pathways.Kame (sand gravel) northeast part a larger kame complexpresent central Holocene (post-glacial) alluviu...

The morphometry of 187 cirques like forms is performed in the selected regions of Zagros Mountain with the use of GIS. The cirques like forms were delimitated manually and their headwall and floor boundaries were modified based on the classified slope map. The power law functions were fitted to 187 longitudinal cross-sections of the cirque like forms and their parameters were analyzed. All the ...