Results 51 to 60 of about 1,858 (206)

Inferring Cenozoic Cover Thickness and Bedrock Sedimentary Material in 3D From Geophysical Data Using Machine Learning Algorithms: A Case Study in the Lockington Region, Victoria, Australia

open access: yesEarth and Space Science, Volume 13, Issue 3, March 2026.
Abstract This study presents a supervised machine learning approach to constructing a 3D geological model for the Lockington area in Victoria, Australia, by integrating borehole observations, geophysical surveys (magnetic, gravity, and radiometric), and elevation data.
Limin Xu   +2 more
wiley   +1 more source

Prídolí graptolites from the Iberian Peninsula: a review of previous data and new records

open access: yes, 1998
Prídolí graptolites are relatively rare in Iberia and, in fact, in much of southwestern Europe, because Prídolí to Early Devonian rocks are largely represented by shallow-water sandstones or siltstone-sandstone alternations.
M Robardet   +3 more
core   +2 more sources

The Early to Middle Ordovician graptolite faunal succession of the Trail Creek region, central Idaho, U.S.A

open access: yesGeologica Acta, 2005
The Middle Ordovician graptolite biostratigraphy of the Trail Creek region of Idaho is reviewed and revised. The oldest known fauna belongs to the Didymograptellus bifidus Biozone. The Isograptus victoriae lunatus, I.
J. Maletz, D. Goldman, M. Cone
doaj   +1 more source

Tectonics, geology and origins of Te Riu‐a‐Māui / Zealandia

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 68, Issue 4, Page 531-567, December 2025.
ABSTRACT Te Riu‐a‐Māui / Zealandia is a 95% submerged, five million square km southern hemisphere continent that includes the islands of New Zealand and New Caledonia. For the last 45 million years (Ma) Zealandia has been cut by the Pacific‐Australian plate boundary which today changes character from a west‐dipping subduction zone in the north to ...
Nick Mortimer
wiley   +1 more source

Mercury Deposition in South China Across the Ordovician‐Silurian Transition: Implications for Climate Change

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 7, July 2025.
Abstract Most of the global climate changes are closely associated with volcanic activity. However, the link between global cooling during the Ordovician‐Silurian (O‐S) transition and volcanism remains unclear due to limited constraints on large volcanic events before, during, and after the peak of the Hirnantian glaciation (PHG). Here, we present high‐
Weiliang Kong   +4 more
wiley   +1 more source

High‐Resolution Tracking of Baltica's Northward Drift in the Ordovician

open access: yesGeophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract We investigated the paleogeography of Baltica via a paleomagnetic study of 471‐454 Ma limestones from the Siljan (Sweden) impact structure. Stepwise thermal demagnetization isolated a well‐defined magnetization component that unblocks up to the Curie temperature of magnetite and passes fold and reversal tests, indicative of a primary ...
Nastaran Ahanin, Stuart A. Gilder
wiley   +1 more source

Clostridium difficile and gut health: Bacteria, the gut microbiome, and diet

open access: yesiMetaOmics, Volume 2, Issue 1, March 2025.
This review explores the mechanisms underlying Clostridium difficile infection (CDI), focusing on the pathogen's life cycle and its pathogenicity within the host. It further explores the interactions between the gut microbiome, gut metabolites, and CDI. Additionally, the review highlights dietary modulation as a promising strategy to restore gut health,
Hao Yang   +8 more
wiley   +1 more source

Skånes Graptoliter [PDF]

open access: yesGeologiska Föreningen i Stockholm Förhandlingar, 1882
n ...
openaire   +2 more sources

Lateral heterogeneity of basin‐plain turbidites of the Cloridorme Formation, Quebec, Canada: Implications for horizontal well prediction

open access: yesThe Depositional Record, Volume 11, Issue 1, Page 22-43, February 2025.
Exceptional outcrop exposures of the Cloridorme Formation, Quebec, Canada, offer a rare opportunity to quantify the lateral continuity of event beds and elements of a basin‐plain depositional environment. Eighty‐two per cent of the mapped event beds are present across a 530 m outcrop transect parallel to depositional dip. However, even in this overall ‘
Zane Jobe   +4 more
wiley   +1 more source

Revisión de las localidades fosilíferas del departamento de Antioquia, Colombia

open access: yesBoletín de Ciencias de la Tierra, 2016
Aunque solamente el 11.5% del área de Antioquia tiene afloramientos de rocas sedimentarias, la revisión bibliográfica y elaboración de un mapa digital de las localidades fosilíferas (27), permite concluir que esta región tiene un gran potencial ...
Yenny Paola Valencia Giraldo   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy