Results 101 to 110 of about 123,575 (347)

On the Origins of Granites

, 2007
Granites make up a large part of the continental crust. New data reveal their complex and diverse formation history, calling for a revision of the geological histories of many ...
Eiler, John M.
core  

Trace element and isotopic (Sr, Nd, Pb, O) arguments for a mid-crustal origin of Pan-African garnet-bearing S-type granites from the Damara orogen (Namibia)

, 2001
Geochronological data, major and trace element abundances, Nd and Sr isotope ratios, δ18O whole rock values and Pb isotope ratios from leached feldspars are presented for garnet-bearing granites (locality at Oetmoed and outcrop 10 km north of Omaruru ...
Mezger, Klaus, Hoernes, Stephan, Jung, S
core   +1 more source

Multiobjective Simulation–Optimization of Crop Allocation and Water Resources in Canal Command Areas Using Genetic Algorithms

Irrigation and Drainage, EarlyView.
ABSTRACT This study develops an integrated simulation–optimization framework for sustainable crop allocation and water resource management in the Bargarh Canal Command (BCC), eastern India. Efficient irrigation allocation remains a critical challenge due to competing demands, groundwater–surface water interactions and environmental constraints ...
Priyanka Mohapatra, J. C. Paul, Sushree Sangita Dash   +2 more
wiley   +1 more source

Shaping the Future of Radiography Education: Lessons From ChatGPT and Generative AI

Journal of Medical Radiation Sciences, EarlyView.
ChatGPT can provide structured guidance, support self‐assessment and scaffold learning processes that bridge classroom knowledge and clinical expectations. However, AI must be embedded in ways that uphold the core principles of radiographic practice: accuracy, reflective judgment, ethical reasoning, empathy and patient‐centred care.
Minh T. Chau, Haydn Kerr, Clare L. Singh, Bismark Ofori‐Manteaw, Elio Arruzza, Kelly Bentley‐Spuur   +5 more
wiley   +1 more source

Deglaciation of the Burren glacio‐karst, western Ireland, during Termination 1: Implications for North Atlantic climate and karstification

Journal of Quaternary Science, EarlyView.
Abstract The Burren uplands in western Ireland form one of the most extensive and best‐preserved examples of glacio‐karst in Europe. Subsumed by the Irish ice sheet during the Late Pleistocene, granite erratic boulders and in situ silica veins in the limestone bedrock provide a rare opportunity to reconstruct the timing and rate of deglaciation ...
Gordon Bromley, Colin Bunce, Brenda Hall, Aaron Putnam, Frank McDermott   +4 more
wiley   +1 more source

Geochronological and geochemical constraints on the petrogenesis of Middle Paleozoic (Kwangsian) massive granites in the eastern South China Block

, 2012
To achieve a better understanding of the Kwangsian orogenic event of the eastern South China Block, this paper documents a set of new zircon U–Pb geochronological and Hf isotopic data and whole-rock elemental and Sr–Nd isotopic analytical results for the
Zhang, F., Fan, W., Zhang, Yuzhi, Zhang, A., Zhang, Feifei, Wang, Yuejun, Zhang, Aimei, Wang, Y., Fan, Weiming, Zi, Jianwei, Zhang, Y.   +10 more
core   +1 more source

Geochronological reconstruction of the Lateglacial deglaciation in the Arve Valley (Northern French Alps)

Journal of Quaternary Science, EarlyView.
ABSTRACT The timing and spatial patterns of glaciers retreat in the Northern French Alps during the Lateglacial (19.0–11.7 ka) remain debated, reflecting discrepancies among available chronological data sets. The complex interactions between major glaciers, such as the Rhône and Arve glaciers to the north and the Isère glacier to the south, represent a
Quentin Portal, Christian Crouzet, Jean‐François Buoncristiani, Julien Carcaillet   +3 more
wiley   +1 more source

Behavioral responses of black bears to human presence and infrastructure in Yosemite National Park

The Journal of Wildlife Management, EarlyView.
Using GPS collar data from black bears in Yosemite National Park, we examined how bear spatiotemporal activity in relation to human development shifted during the COVID‐19 park closure in 2020. In the absence of visitors, bears maintained consistent landscape‐scale space use but altered fine‐scale spatial and temporal behaviors.
Jennifer R. Green, Caitlin Lee‐Roney, Kathleen Patrick, Rachel Mazur, Robert Lester, Erin Degutis, Ryan Leahy, Tal Avgar, Naomi B. Schwartz, Kaitlyn M. Gaynor   +9 more
wiley   +1 more source

Upper Ordovician peralkalic granites from the Gulf of Maine

, 1978
Specimens from fourteen outcrops of bedrock in the Gulf of Maine were collected with the submersible Alvin and include one felsic aphanitic pyroclastic rock, two calc-alkalic granites, and eleven peralkalic granites.
Banks, P. O., Hermes, O. Don, Ballard, R. D.   +2 more
core   +1 more source

Anaerobic Corrosion Phenomena of Cast Iron and Copper in Artificial Groundwater at Elevated Temperature

Materials and Corrosion, EarlyView.
This study examines corrosion of copper and cast iron as candidate canister materials for high‐level radioactive waste disposal in contact with bentonite suspension. The influence of three electrolyte compositions on corrosion behavior under repository‐relevant conditions is assessed.
Louisa Panjiyar, Martin Ende, Christiane Stephan‐Scherb   +2 more
wiley   +1 more source