Results 61 to 70 of about 7,518 (219)

Late Pleistocene‐Holocene Paleosecular Variation Dating of Cave Sediments: Insights From Grotta Romanelli (Apulia, Italy)

open access: yesGeochemistry, Geophysics, Geosystems
Grotta Romanelli, located in southern Italy, is a natural coastal cave renowned for its exceptional stratigraphical record and its critical role in understanding the Middle Pleistocene‐Holocene geomorphological and paleoenvironmental evolution of the ...
E. Tema   +5 more
doaj   +1 more source

NEW TRIASSIC ASTEROIDEA (ECHINODERMATA) SPECIMENS AND THEIR EVOLUTIONARY SIGNIFICANCE

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2017
The Paleozoic-Mesozoic transition saw the disappearance of asteroid stem groups and the ascent of the crown group, but late Paleozoic and Triassic asteroids are rare and transition events are poorly documented.
DANIEL B. BLAKE   +2 more
doaj   +1 more source

Fractal Analysis, Morpho‐Sedimentary Aspects and Coastal Vulnerability in Mediterranean Islands: A Novel Approach

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 10, October 2026.
An integrated framework combining fractal geometry, sedimentology and coastal exposure analysis revealed higher coastal vulnerability in Procida than in Mykonos despite the latter's greater shoreline complexity. This approach provides a robust tool for assessing morphodynamics and supporting sustainable management of Mediterranean island coasts ...
Luca Lämmle   +8 more
wiley   +1 more source

REGISTRO DE LOS OSTRACODOS MARINOS DEL PALEOGENO DE ARGENTINA

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2015
A list of Paleogene marine ostracodes, which were registered up to, now is performed. They are arranged in alphabetical order and according to their age. Furthermore localities, basins, possible paleoenvironment and authors are indicated.
Alicia E. Echevarría
doaj  

Policy‐Driven Evolution of Sediment in the Yellow River Basin over the Past 2000 Years

open access: yesEarth's Future, Volume 14, Issue 10, October 2026.
Abstract River sediment load serves as a typical indicator of the interaction between human activities and the natural environment, and historical policies have profoundly altered basin sediment transport processes. In this study, we constructed a quantitative analytical framework based on the policy index to systematically trace the evolutionary ...
Anle Yang   +7 more
wiley   +1 more source

Pliocene Paleoenvironment and Antarctic Ice Sheet Behavior: Evidence From Wright Valley [PDF]

open access: yes, 1997
Investigations in Wright Valley, adjacent to the Transantarctic Mountains in East Antarctica, shed light on the question of whether high-latitude Pliocene climate was warm enough to cause widespread deglaciation of the East Antarctic craton with a ...
Denton, George H.   +3 more
core   +2 more sources

3D Architecture of Kodiak Butte as Evidence of Fluvial or Shoal‐Water Environments in Jezero Crater, Mars

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract The Mars 2020 mission has explored depositional environments recorded in a fan‐shaped deposit on the western side of Jezero crater. Kodiak butte is an isolated outcrop of sedimentary rock ∼1 km south of the western fan scarp and may be an erosional remnant of said fan.
O. A. Kanine   +4 more
wiley   +1 more source

Life After Impact: Paleobathymetric Gradients in Post‐K/Pg Nannoplankton Boom‐Bust Successions

open access: yesPaleoceanography and Paleoclimatology, Volume 41, Issue 10, October 2026.
Abstract The Cretaceous/Paleogene (K/Pg) bolide impact ∼66 Ma caused the near‐demise of calcareous nannoplankton–key primary producers and major components of the biological pump that exports organic and inorganic carbon to the deep sea. Despite their ecological significance, resolving the exact impact of nannoplankton's mass extinction on ecosystem ...
Heather L. Jones   +11 more
wiley   +1 more source

AN OPEN SCIENCE APPROACH TO GIS-BASED PALEOENVIRONMENT DATA [PDF]

open access: yes, 2016
Paleoenvironmental studies and according information (data) are abundantly published and available in the scientific record. However, GIS-based paleoenvironmental information and datasets are comparably rare. Here, we present an Open Science approach for
M. Zickel   +15 more
core   +1 more source

Quaternary strata lithological characteristics and environmental geological significance of borehole WKZK01 in the eastern Songnen Plain

open access: yesDizhi lixue xuebao
Objective  Study of the Quaternary stratigraphical characteristics of the eastern Songnen Plain is of particular importance for gaining an understanding of regional climate change and the evolution of sedimentary environments. To data, however, there has
CHEN Yangyang   +8 more
doaj   +1 more source

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