Results 81 to 90 of about 99 (99)

The role of shallow banks and marine ice domes in marine‐based ice‐sheet deglaciation

Boreas, EarlyView.
Marine‐based ice sheets are susceptible to collapse and faster retreat than their land‐terminating counterparts. One of the key factors contributing to the relative stability of marine‐terminating ice sheets is the presence of shallow bathymetric banks and islands acting as pinning points for the ice sheet.
Bartosz Kurjanski, Brice R. Rea, Matteo Spagnolo   +2 more
wiley   +1 more source

A 3200‐year weathering record of the Mekong River basin by sediments from the South China Sea

Boreas, EarlyView.
The Mekong River is a mega‐river in East and Southeast Asia, and precipitation in its watershed influences more than 300 million people. However, the controlling factor in precipitation and weathering in the basin remains controversial. Here we present a high‐resolution record of weathering of the Mekong River basin over the past 3200 years by ...
Yujie Cheng, Haiou Gu, Sang Chen, Liqiang Xu   +3 more
wiley   +1 more source

Bipedalism or bipedalisms: The os coxae of StW 573

Journal of Anatomy, EarlyView.
There has been a long debate about the possibility of multiple contemporaneous species of Australopithecus in both eastern and southern Africa, potentially exhibiting different forms of bipedal locomotion. Here, we describe the previously unreported morphology of the os coxae in the 3.67 Ma Australopithecus prometheus StW 573 from Sterkfontein Member 2
Robin Crompton, Sarah Elton, Jason Heaton, Travis Pickering, Kristian Carlson, Tea Jashashvili, Amelie Beaudet, Laurent Bruxelles, Kathleen Kuman, Susannah K. Thorpe, Eishi Hirasaki, Christopher Scott, William Sellers, Todd Pataky, Ronald Clarke, Juliet McClymont   +15 more
wiley   +1 more source

Exploring the origins of magnetization within the Chicxulub crater upper peak ring

Meteoritics &Planetary Science, Volume 60, Issue 4, Page 823-848, April 2025.
Abstract Large terrestrial impacts may produce vast subsurface hydrothermal systems, capable of generating conditions favorable to the origin of life. Modeling suggests that these systems may persist for >1 million years for basin‐sized craters; however, direct experimental constraints on hydrothermal system duration are needed.
Christina M. Verhagen, Sonia M. Tikoo, Martin Schmieder, Jérôme Gattacceca, François Demory, Juliane Gross, David A. Kring, Paul V. Burger, Sean P. S. Gulick, Joanna V. Morgan, Mario Rebolledo‐Vieyra, Jaime Urrutia‐Fucugauchi, Annemarie E. Pickersgill, Cornelia Rasmussen   +13 more
wiley   +1 more source

Selective sampling of asteroids, the Moon, and Mars: Factors affecting the numerical abundances of members of meteorite groups

Meteoritics &Planetary Science, EarlyView.
Abstract Meteorite collection inventories show that many related meteorite groups have very different numerical abundances (e.g., lunar versus Martian meteorites; Eagle Station pallasites versus main‐group pallasites; eucrites versus diogenites; ungrouped Antarctic irons versus ungrouped non‐Antarctic irons; carbonaceous chondrite‐related (CC) iron ...
Alan E. Rubin
wiley   +1 more source

Uncertainty‐guided U‐Net for soil boundary segmentation using Monte Carlo dropout

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 10, Page 1370-1387, 18 April 2025.
Abstract Accurate soil stratification is essential for geotechnical engineering design. Owing to its effectiveness and efficiency, the cone penetration test (CPT) has been widely applied for subsurface stratigraphy, which relies heavily on empiricism for correlations to soil type.
X. Zhou, B. Sheil, S. Suryasentana, P. Shi   +3 more
wiley   +1 more source

FRAUGHT WITH HIGH TRAGEDY: A CONTEXTUAL AND CHRONOLOGICAL RECONSIDERATION OF THE MAIDEN CASTLE IRON AGE ‘WAR CEMETERY’ (ENGLAND)

Oxford Journal of Archaeology, EarlyView.
Summary The Iron Age ‘war cemetery’ of Maiden Castle hillfort, Dorset, England, is one of the most internationally celebrated of British archaeological discoveries, levels of trauma recorded on skeletons found there being interpreted as evidence for a Roman massacre.
Martin Smith, Miles Russell, Paul Cheetham   +2 more
wiley   +1 more source

Undulating stratigraphy of a carbonate inner ramp lagoon and associated architectural facies heterogeneity: An example from the Late Jurassic Hanifa Formation, Central Saudi Arabia

Sedimentology, Volume 72, Issue 3, Page 734-762, April 2025.
Abstract This study offers new insights into the internal architecture of shallow marine carbonate sediments deposited in an epeiric sea formed on a broadly flooded passive margin continental shelf. The Ullayah Member of the Late Jurassic Hanifa Formation is exposed along the Tuwaiq Mountain Escarpment in Central Saudi Arabia and serves as an example ...
Pankaj Khanna, Ahmad R. Ramdani, Gaurav S. Gairola, Teyyuba Adigozalova, David Hodgetts, Volker C. Vahrenkamp   +5 more
wiley   +1 more source

The impact of high discharge variability on sedimentology and architecture of bar deposits in the meandering Powder River (Montana, USA)

Sedimentology, Volume 72, Issue 3, Page 871-903, April 2025.
Abstract Point bars are emblematic deposits of meandering rivers. Classical facies models that define their architecture and sedimentology are essentially based on rivers with low to moderate peak discharge variability. However, many global rivers experience high peak discharge variability, which may significantly impact point‐bar sedimentological ...
Riccardo Maitan, Christopher R. Fielding, John A. Moody, Alvise Finotello, Davide Tognin, Andrea D'Alpaos, Massimiliano Ghinassi   +6 more
wiley   +1 more source

Australian continental‐scale heavy mineral patterns track climate, weathering and erosion

Sedimentology, EarlyView.
ABSTRACT The heavy mineral cargo of sediment is influenced by a complex and variable overprint of climate and environmental processes acting on weathered crystalline basement sources. Here, a continental‐scale heavy mineral compositional dataset of 1315 surface sediment samples, analysed via automated mineralogy, from across Australia is utilized to ...
Maximilian Dröllner, Milo Barham, Christopher L. Kirkland, Andreas Zametzer, Maike Schulz   +4 more
wiley   +1 more source