Results 101 to 110 of about 5,095 (245)

The Hydroclimate and Environmental Response to Middle Miocene Warming in the Southwestern USA: Stable Isotope Evidence

open access: yesPaleoceanography and Paleoclimatology, Volume 40, Issue 5, May 2025.
Abstract Predictions for the southwestern US with warming often suggest increased aridity. We investigate the sedimentary record of the Miocene Climate Optimum and Transition (MCO and MCT; ∼17–14 Ma) in northern New Mexico to understand the impact of warmer global temperatures and higher pCO2 on southwestern US hydroclimate. The MCO and MCT comprised a
Siânin Spaur   +7 more
wiley   +1 more source

Estimating the frequency of volcanic ash clouds over northern Europe [PDF]

open access: yes, 2016
Fine ash produced during explosive volcanic eruptions can be dispersed over a vast area, where it poses a threat to aviation, human health and infrastructure. Here, we focus on northern Europe, which lies in the principal transport direction for volcanic
Akaike   +59 more
core   +3 more sources

Refining the Eruption Chronology of Atitlán Caldera Through Zircon Double‐Dating

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 3, March 2025.
Abstract Precise dating of Quaternary volcanism is vital for risk mitigation, understanding volcano‐climate interactions, and deciphering the evolution of large silicic magmatic systems. The Atitlán caldera in Guatemala has experienced major eruptions that challenge radiometric dating techniques and complicate eruption chronology in this densely ...
Alejandro Cisneros de León   +7 more
wiley   +1 more source

Paleo‐Earthquake Fingerprints and Along‐Strike Slip Variation of the Silent Mt. Morrone Normal Fault (Central Italy): A Structural‐Geochemical Approach

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 2, February 2025.
Abstract This study provides insights into the tectonic evolution of the normal Mt Morrone Fault System (MMFS) in Central Italy and highlights the utility of multidisciplinary approaches in reconstructing the seismic history of dormant fault systems. The MMFS comprises two parallel normal faults that traverse the western slope of Mt.
S. Bello   +11 more
wiley   +1 more source

Tephrochronology of New Volcanic Ash

open access: yesThe Quaternary Research (Daiyonki-Kenkyu), 1963
When a volcano eruptes, its pyroclastics are deposited over the surface of the earth, so the depositional features of the pyroclastics tell us the history of volcanic activities. Therefore, if we wish to investigate the tephrochronology of pyroclastics which spread over the surface of the earth, the following works should be done.1) At first, we must ...
openaire   +2 more sources

Refining the Late Quaternary tephrochronology for southern South America using the Laguna Potrok Aike sedimentary record

open access: yesQuaternary Science Reviews, 2019
This paper presents a detailed record of volcanism extending back to ∼80 kyr BP for southern South America using the sediments of Laguna Potrok Aike (ICDP expedition 5022; Potrok Aike Maar Lake Sediment Archive Drilling Project - PASADO). Our analysis of
Rebecca E. Smith   +8 more
semanticscholar   +1 more source

Optically-stimulated luminescence profiling and dating of historic agricultural terraces in Catalonia (Spain) [PDF]

open access: yes, 2017
Dating agricultural terraces is a notoriously difficult problem for archaeologists. The frequent occurrence of residual material in terrace soils and the potential for post-depositional disturbance mean that conventional artefactual and lab-based dating ...
Bolòs, Jordi   +3 more
core   +3 more sources

A new tephrochronology for early diverse stone tool technologies and long-distance raw material transport in the Middle to Late Pleistocene Kapthurin Formation, East Africa.

open access: yesJournal of Human Evolution, 2018
The Middle to Late Pleistocene (780-10 ka) of East Africa records evidence of significant behavioral change, early fossils of Homo sapiens, and the dispersals of our species across and out of Africa.
Nick Blegen   +2 more
semanticscholar   +1 more source

Book notices and Book reviews [PDF]

open access: yes, 1967
Book notices and Book reviews from Volume 1, Number 2, 1967 of Earth Science ...
Waikato Geological Society
core   +1 more source

Examination of Late Palaeolithic archaeological sites in northern Europe for the preservation of cryptotephra layers [PDF]

open access: yes, 2015
We report the first major study of cryptotephra (non-visible volcanic ash layers) on Late Palaeolithic archaeological sites in northern Europe. Examination of 34 sites dating from the Last Termination reveals seven with identifiable cryptotephra layers ...
Antoine, Pierre   +59 more
core   +1 more source

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