Results 141 to 150 of about 235,426 (378)

Nature, origin and significance of a clayey cave deposit: Relationship between karst and Oligocene/Miocene tephra (NW Dinarides)

open access: yesThe Depositional Record, EarlyView.
A limestone cave in the NW Dinarides exhibits an anomalous presence of montmorillonite clay, not commonly found in surrounding caves, posing questions about its origin and age. Analysis reveals a composition similar to weathered tephra from the Smrekovec Volcanic Complex, suggesting transport by north‐east winds.
Nadja Zupan Hajna   +12 more
wiley   +1 more source

Elaphe vulpina [PDF]

open access: yes, 1990
Number of Pages: 3Integrative BiologyGeological ...
Powell, Robert
core   +1 more source

On the choice of ingredients for a theory of the Ice Ages [PDF]

open access: yesarXiv, 2013
"With five parameters one can fit an elephant". This provocative statement expresses the fact that when a theory has several adjustable parameters, an agreement with empirical data can be of modest value. What about a theory which contains unobserved objects? This is the subject of this paper.
arxiv  

Optimal mud pressure design using nonlinear failure criteria for wellbores in shaley sedimentary reservoir

open access: yesDeep Underground Science and Engineering, EarlyView.
The present study uses the Modified Mohr‐Coulomb true‐triaxial failure criterion (MMC_TT), which predicts the strength of rock better than the MGC criterion in laboratory true‐triaxial tests to overcome the limitations. Moreover, based on the data from previously published five vertical wells in the Krishna‐Godavari basin (K‐G basin), an empirical ...
Ravindra K. Burnwal, Aditya Singh
wiley   +1 more source

Regional‐Scale Landscape Response to an Extreme Precipitation Event From Repeat Lidar and Object‐Based Image Analysis

open access: yesEarth and Space Science, Volume 9, Issue 12, December 2022., 2022
Abstract Extreme precipitation events may cause flooding, slope failure, erosion, deposition, and damage to infrastructure over a regional scale, but the impacts of these events are often difficult to fully characterize. Regional‐scale landscape change occurred during an extreme rain event in June 2012 in northeastern Minnesota.
S. B. DeLong   +7 more
wiley   +1 more source

Main problems of the research on the Palaeolithic of Halych-Dnister region (Ukraine)

open access: yesOpen Geosciences, 2020
The article presents the results of the Palaeolithic loess sites studies in the Halych-Dnister region. It is an area in the Dnister River basin (Ukraine) with a large number of Middle and Upper Palaeolithic sites (Yezupil I, Halych I, Halych II ...
Bogucki Andriy   +3 more
doaj   +1 more source

Early-Middle Pleistocene benthic turnover and oxygen isotope stratigraphy from the Central Mediterranean (Valle di Manche, Crotone Basin, Italy): data and trends [PDF]

open access: yes, 2018
Ostracod faunal turnover and oxygen isotope data (foraminifera) along the Valle di Manche (VdM) section are herein compiled. Specifically, the material reported in this work includes quantitative palaeoecological data and patterns of ostracod fauna ...
Azzarone, Michele   +7 more
core   +2 more sources

2019 Mw 6.0 Mesetas (Colombia) Earthquake Sequence: Insights From Integrating Seismic and Morphostructural Observations

open access: yesEarth and Space Science, Volume 9, Issue 12, December 2022., 2022
Abstract The boundary between the Northern Andean block and the South American plate is a first‐order tectonic structure in Colombia with historically M > 7 earthquakes. However, details about individual sections of the system remain unknown. We illuminate the seismotectonic of the Algeciras fault by investigating an earthquake sequence that started on
Esteban Poveda   +6 more
wiley   +1 more source

POLA OKUPASI GUA KIDANG, JELAJAH RUANG DAN WAKTU: SUATU HIPOTESIS

open access: yesBerkala Arkeologi, 2012
Kidang cave in the karst region Todanan, Blora, Central Java is a cave complex which consists of two caves. Archaeological findings show intensively inhabited this cave for a long time.
Indah Asikin Nurani, Agus Tri Hascaryo
doaj   +1 more source

Synchrotron radiation reveals the identity of the large felid from Monte Argentario (Early Pleistocene, Italy) [PDF]

open access: yes, 2018
We describe here a partial skull with associated mandible of a large felid from Monte Argentario, Italy (Early Pleistocene; ~1.5 million years). Propagation x-ray phase-contrast synchrotron microtomography of the specimen, still partially embedded in the
Fernandez, Vincent   +7 more
core   +3 more sources

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