Results 61 to 70 of about 10,884 (225)

Beyond Rock Glaciers: Investigating Meltwater Contribution and Water Quality in High‐Mountain Springs From Different Landforms

Hydrological Processes, Volume 40, Issue 4, April 2026.
We investigated the water chemistry of springs from different landforms in high‐elevation Alpine catchments. Only in predisposing lithological settings, springs from landforms most likely influenced by ice had a poor water quality with high dissolved concentrations of metals.
Stefano Brighenti, Chiara Crippa, Luca Carturan, Valeria Lencioni, Alberto Scotti, Andrina Janicke, Monica Tolotti, Raul‐David Șerban, Andrea Mustoni, Marco Armanini, Werner Tirler, Francesco Comiti, Nicola Colombo   +12 more
wiley   +1 more source

Effects of Surface Characteristics on the Existence of Isolated Permafrost in Northeastern Mongolia

Permafrost and Periglacial Processes, Volume 37, Issue 2, Page 240-253, April/June 2026.
ABSTRACT Isolated patches of permafrost, where ground thermal changes are affected by ecosystem factors such as vegetation cover rather than climate, may be vulnerable to environmental disturbances in semiarid regions. However, the impacts of ecosystem factors remain underevaluated in Mongolia.
Gansukh Yadamsuren, Jambaljav Yamkhin, Nyambayar Batbayar, Munkhdavaa Munkhjargal, Vandandorj Sumiya, Tsogt‐Erdene Gansukh, Ulambayar Ganbold, Ochirkhuyag Jargalsaikhan, Nandintsetseg Nyam‐Osor, Masayuki Kawahigashi   +9 more
wiley   +1 more source

The Kolar Schist Belt: A possible Archaean suture zone [PDF]

The Kolar Schist Belt represents a N-S trending discontinuity in the structures, lithologies, and emplacement and metamorphic ages of late Archean gneisses.
Balakrishnan, S., Hanson, G. N., Krogstad, E. J., Ragamani, V.   +3 more
core   +1 more source

Effects of Debris Flow Disturbance on Vegetation, Soils, and Topography in a Steep Landscape in Central Virginia

Earth and Space Science, Volume 13, Issue 4, April 2026.
Abstract In August 1969, intense rainfall from the remnants of Hurricane Camille triggered >150 debris flows in Fortune's Cove, a first‐order drainage basin in central Virginia. These debris flows reshaped the landscape by stripping colluvium and vegetation from hollows.
A. M. Ackerman, C. A. Copenheaver, J. B. Richardson, A. B. Limaye   +3 more
wiley   +1 more source

Close or not so close? Provenance studies of megalithic monuments from Alentejo (Portugal) [PDF]

, 2012
There has been a significant amount of studies about megalithic tombs conducted in the Alentejo region. However the geological provenance of monoliths used in the construction of those tombs usually was not a priority among researchers with rare ...
Boaventura, Rui, Moita, Patricia
core  

Climax of Late Paleoproterozoic Rift‐Related Magmatism in the Columbia Supercontinent: Insights From a 1.77–1.76 Ga Large Igneous Province of the Dunhuang Block, Northwest China

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract Widespread mafic magmatism at ca. 1.8–1.7 Ga across fragments of the Columbia supercontinent records a transition in the Earth's supercontinent cycle. The paleogeographic position of the Dunhuang Block in northwestern China within Columbia, and its role in this tectonic reorganization, remain controversial.
Masumeh Sargazi, Chuan‐Lin Zhang, Xian‐Tao Ye, Zhi‐Hao Song, Hong‐Ran Wang   +4 more
wiley   +1 more source

Trace-elements in minerals from unusual rocks of the Southern Urals

Литосфера, 2019
Research subject. This articles presents the data obtained in the course of 75 analytical studies on a wide range of minerals (amphiboles, pyroxenes, garnets, spinels, olivines, anorthites, corundums, epidotes, apatites, clinochlore, dolomite, calcite ...
V. G. Korinevsky, K. A. Filippova, V. A. Kotlyarov, E. V. Korinevsky, D. A. Artemyev   +4 more
doaj   +1 more source

Geochemical Disequilibrium at the Brittle‐Ductile Transition

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract We investigate the microtextural, microchemical, and isotopic effects of late‐stage ductile deformation in quartzite mylonites and kyanite–muscovite–quartz veins from the Raft River shear zone (Utah). Quartz microstructures record pervasive disequilibrium, expressed by unannealed features including undulatory extinction, deformation lamellae ...
Raphaël Gottardi, Ryan McAleer, Gabriele Casale, Martin Wong   +3 more
wiley   +1 more source

Negative Frictional Healing in Icelandic Geothermal (IDDP‐2) Core Samples: Potential Implications for Detachment‐Fault Mechanics

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 4, April 2026.
Abstract Detachment faults in mid‐ocean ridge settings accommodate tectonic extension. These faults are potentially weakened by alteration through phyllosilicate‐ and amphibole‐mineral formation. Seven core samples taken from the Krafla and Reykjanes geothermal fields in Iceland allow for the study of the effect of mineral alteration on the frictional ...
Barnaby Fryer, Florian Jermann, Patricia Patrier, Bruno Lanson, Stanislav Jelavic, Simon Guérin‐Marthe, Gabriel Meyer, Fabrice Barou, Marie Violay   +8 more
wiley   +1 more source

Ophiolites of Mariinsky complex at east and west frames of Revdinsky Massif

Литосфера, 2016
Fragments of the ophiolites of the Mariinsky complex of eastern and western framing of the Revdinskiy massif have been compared. At the eastern framing rocks of Mariinsky complex are main dolerites of sheeted dike complex, whch intruded basaltic pillow ...
S. V. Berzin
doaj   +2 more sources