Results 51 to 60 of about 6,127 (222)

Distal Marine Mercury Signals in Peak Late Paleozoic Ice Age: Implications for Aeolian Versus Volcanic Inputs

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract An investigation of the relationships among large igneous province (LIP), carbon cycling, and climate change is central to understanding Earth system. During Glacial III, the most intense phase of Late Paleozoic Ice Age, the influence of coeval LIP on the carbon cycle and climate remains debated.
Yuzhu Ge, J. E. Sonke, L. Laffont, T. R. Them II, A. Bekker, Huaguo Wen   +5 more
wiley   +1 more source

Ediacara Obscura: Unveiling Hidden Magnetisations in the Fen Complex, Southern Norway

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Paleomagnetic directions found in Ediacaran (635–539 Ma) rocks are widely dispersed, which has led to conflicting hypotheses about tectonic regimes and geomagnetic field behavior during this period, and raised doubts about the fidelity of the paleomagnetic record.
Justin A. D. Tonti‐Filippini, Paul Y. J. Antonio, Sven Dahlgren, Rosa de Boer, Leandro Gallo, Petter Silkoset, Bertwin de Groot, Lennart de Groot, Mathew Domeier   +8 more
wiley   +1 more source

Late paleozoic and early mesozoic plant fossils from the Cordillera Oriental of Colombia and correlation of the Giron Formation

Boletín Geológico, 1960
Fossil plants from a few localities in the Girón Formation and associated rocks in Santander and Boyacá provide additional information regarding the age of the Girón Formation.
Jean H. Langenheim
doaj   +1 more source

Putative Analogs of Pyrite Suns Forming in Proglacial Alaska Mudflats

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Disc‐shaped pyrite suns of the Pennsylvanian age Anna Shale are thought to have formed where pressure restricted pyrite crystal growth to a flattened disc shape during diagenesis at the Anna Shale and the underlying Herrin coal boundary.
Heather L. Fair, Trinity L. Hamilton, Jeff R. Havig   +2 more
wiley   +1 more source

Spatial and Temporal Variations in Slip Rate Over Millions of Years on an Extensional Fault System and Implications for Seismic Hazard

Tectonics, Volume 45, Issue 5, May 2026.
Abstract Slip rate is a key input for fault‐based seismic hazard assessment, with temporal and spatial variations in slip rate along and between faults influencing earthquake size and recurrence. Temporal variations in slip rate have been attributed to earthquake clustering and anti‐clustering in tectonically active settings.
Billy J. Andrews, Zoë. K. Mildon, Christopher A‐L. Jackson, Constanza Rodriguez Piceda, Francesco Iezzi, Gerald P. Roberts, Joanna P. Faure Walker   +6 more
wiley   +1 more source

Patterns of deposition during the Early Pennsylvanian (Morrowan) in the Illinois Basin

, 2000
The early Pennsylvanian (Morrowan) transgressions in the Illinois Basin can be documented by mapping the depositional limits of the subdivisions of the Mansfield Formation.
Droste, John B., Furer, Lloyd C., Horowitz, Alan S.   +2 more
core   +1 more source

A >300 Myr Long‐Lived Topographic Highland Along the Northern North China Craton Margin Driven by Multistage Continental Convergence

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Topographic highlands commonly develop along convergent plate boundaries through long‐term processes such as subduction and continental collision. However, the pre‐Cenozoic mountain‐building history of deep‐time orogenic systems in northeastern Pangaea remains poorly constrained due to later tectonic overprinting and denudation.
Heng Peng, Licheng Wang, Jianqiang Wang, Yazuo Niu, Yahui Yue, Jingbo Sun, Bitian Wei, Chiyang Liu, Massimiliano Zattin, Lin Ding   +9 more
wiley   +1 more source

The Role of Baseflow Data Assimilation in Hydrologic Modeling and Peak Flow Prediction

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Recent studies have revealed that subsurface water storage and flow pathways contribute a substantially larger share of streamflow than previously assumed. However, because representations of these subsurface contributions in most hydrologic models are uncertain and often biased, they can strongly influence simulated streamflow generation and ...
Parnian Ghaneei, Ehsan Foroumandi, Hamid Moradkhani   +2 more
wiley   +1 more source

Divisions of the Pennsylvanian System in Kansas

, 1949
This report summarizes studies in the northern midcontinent region bearing on classification of rocks belonging to the Pennsylvanian System in Kansas. It does not review historical features in the development of classification, treated in 1936 (Kansas ...
Moore, Raymond C.
core   +1 more source

Synapsids and sensitivity: Broad survey of tetrapod trigeminal canal morphology supports an evolutionary trend of increasing facial tactile specialization in the mammal lineage

The Anatomical Record, Volume 309, Issue 4, Page 864-911, April 2026.
Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae, Julien Benoit, Irina Ruf, Zoleka Sibiya, Bhart‐Anjan S. Bhullar   +4 more
wiley   +1 more source