Results 41 to 50 of about 250 (169)

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

Journal of Quaternary Science, Volume 41, Issue 5, Page 702-715, July 2026.
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

Revisiting the Hummeln structure, Sweden—A shallow marine Cambrian impact structure

Meteoritics &Planetary Science, Volume 61, Issue 7, Page 1213-1242, July 2026.
Abstract Hummeln is a simple impact structure located in south‐eastern Sweden. It is approximately 1.2 km in diameter and almost completely covered by a lake. Here, we present the first detailed investigation of impactites and mapping of the 164.25 m deep drill core Hummeln‐1 with a focus on impact metamorphism and the impact process.
S. Alwmark, J. Granbom, P. Ahlberg, M. Calner, S. Richoz, K. J. Gajewska, W. R. Hyde, K. Ljung, C. Alwmark   +8 more
wiley   +1 more source

Stretched exponential relaxation of viscous remanence and magnetic dating of erratic boulders [PDF]

Journal of Geophysical Research: Solid Earth, 2016
AbstractViscous remanence continuously increases with the duration of reorientation of rocks, and the remanence gets partially overprinted in rocks parallel to the Earth's magnetic field. This overprinted viscous remanence is unblocked at a certain temperature that enables the estimation of the time required for the rock to acquire the magnetism, by ...
T. Sato, N. Nakamura, H. Nagahama, K. Minoura   +3 more
openaire   +1 more source

Shield Equipment Optimization and Construction Control Technology in Water-Rich and Sandy Cobble Stratum: A Case Study of the First Yellow River Metro Tunnel Undercrossing

Advances in Civil Engineering, 2019
The Lanzhou Yellow River Tunnel is the first metro shield tunnel that undercrosses the Yellow River in China. It was completed after successfully overcoming several construction challenges, including strata with a high proportion of large-sized sandy ...
Fei Ye, Nan Qin, Xiang Gao, Xue-yong Quan, Xian-zhuo Qin, Bing Dai   +5 more
doaj   +1 more source

Sex differences in circulating platelet‐derived CD41+ extracellular vesicles in healthy adults

Physiological Reports, Volume 14, Issue 13, July 2026.
Abstract Extracellular vesicles (EVs) facilitate intercellular communication and reflect the physiological state of their parent cells. Microvesicles (MVs; ~200–900 nm) are released during cellular activation or stress and may provide insight into sex‐related physiological differences.
Garett Jackson, Hashim Islam, Alexandre Abilio de Souza Teixeira, Christopher DeSouza, Isaac T. S. Li, Jonathan Little   +5 more
wiley   +1 more source

Trace fossils from the Baltoscandian erratic boulders in SW Poland

Annales Societatis Geologorum Poloniae, 2017
Many well preserved trace fossils were found in erratic boulders and the fossils preserved in them, occurring in the Pleistocene glacial deposits of the Fore-Sudetic Block (Mokrzeszow Quarry, Świebodzice outcrop). They include burrows ( Arachnostega gastrochaenae , Balanoglossites isp., ? Balanoglossites isp., ?
Alina Chrząstek, Kamil Pluta
openaire   +2 more sources

Mercury's Eccentric Orbit as a Driver of Significant “Seasonal” Change in Upstream Solar Wind Forcing

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Mercury experiences the most intense and variable solar wind (SW) conditions in the solar system due to its close, eccentric orbit about the Sun. In addition to variation driven by coronal source and solar cycle, the SW arriving at Mercury varies periodically as the planet's heliocentric distance changes by over 50% per orbit.
Ryan M. Dewey, Caitriona Mary Jackman, Mathias Rojo, Lina Z. Hadid, Beatriz Sánchez‐Cano, Charles F. Bowers, Jim M. Raines, Susan T. Lepri, Stefano Livi, Jesse T. Coburn, Sae Aizawa, Yeimy J. Rivera, Weijie Sun, Jiutong Zhao, James A. Slavin, Daniel Heyner, Daragh M. Hollman, Alexander D. Shane   +17 more
wiley   +1 more source

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

Biological Reviews, Volume 101, Issue 3, Page 1091-1119, June 2026.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson, Ellen Wohl, Laura L. Govers, Oscar Franken, Tjeerd J. Bouma, Han Olff, Britas Klemens Eriksson, Maryann S. Watson, Luísa M.S. Borges, Tjisse van der Heide   +9 more
wiley   +1 more source

East Greenland Caledonides: stratigraphy, structure and geochronology: Lower Palaeozoic stratigraphy of the East Greenland Caledonides [PDF]

Geological Survey of Denmark and Greenland Bulletin, 2004
The Lower Palaeozoic stratigraphy of the East Greenland Caledonides, from the fjord region of North-East Greenland northwards to Kronprins Christian Land, is reviewed and a number of new lithostratigraphical units are proposed. The Slottet Formation (new)
Smith, M. Paul, Rasmussen, Jan Audun, Robertson, Steve, Higgins, A.K., Leslie, A. Graham   +4 more
doaj  

The Last Glacial Maximum (LGM) glacier network of the Valsugana area (south-eastern European Alps and Prealps, NE Italy) [PDF]

Eiszeitalter und Gegenwart
We present new chronological and palaeoclimatological constraints on the evolution of the Valsugana glacier network (south-eastern European Alps) during the Last Glacial Maximum (LGM). The detection of ice-marginal sediments and landforms, related to the
L. Rettig, S. Rossato, S. Kamleitner, S. Kamleitner, P. Mozzi, S. Ivy-Ochs, E. Marcato, M. Christl, S. Martin, G. Monegato, G. Monegato   +10 more
doaj   +1 more source