Results 41 to 50 of about 913 (184)

Investigation of spectral properties of different Quaternary paleosols and parent materials

Hungarian Geographical Bulletin, 2020
Diffuse Reflectance Spectroscopy (DRS) is a rapid, relatively new method in Quaternary research to analyse sediments and paleosols. This method takes into account clay mineral content, amount of Fe-bearing minerals and grain size composition of samples,
József Szeberényi, Alzbeta Medved’ová, Pavel Rostinsky, Gabriella Barta, Ágnes Novothny, Diána Csonka, István Viczián, Erzsébet Horváth, Tamás Végh   +8 more
doaj   +1 more source

Late Glacial–Holocene climatic transition record at the Argentinian Andean piedmont between 33 and 34° S [PDF]

Climate of the Past, 2014
The Arroyo La Estacada (~ 33°28' S, 69°02' W), eastern Andean piedmont of Argentina, cuts through an extensive piedmont aggradational unit composed of a dominant Late Pleistocene–early Holocene (LP–EH) alluvial sequence that includes several paleosols ...
A. E. Mehl, M. A. Zárate
doaj   +1 more source

Taxonomic reassessment of fossil Sequoia and Protosequoia from the Upper Miocene of Central Honshu, Japan, with implications for leaf morphological variation in extant S. sempervirens

American Journal of Botany, Volume 113, Issue 7, July 2026.
Abstract Premise Since its emergence in the Mesozoic, Sequoia (Cupressaceae) has been considered to possess conserved leaf morphology. However, recent studies have shown that the leaves of extant S. sempervirens become smaller, with a scale form, with increasing tree height.
Shun Ikeda, Arata Momohara
wiley   +1 more source

Relief in Aeolian Environment. The Surface of Nida Settlement

Archaeologia Lituana, 2019
During archaeological investigations in Nida settlement in 1974–1978, 2011–2013 and 2016 a lot of stratigraphic data from considerably wide area was gathered.
Mindaugas Pilkauskas, Gytis Piličiauskas, Rokas Vengalis   +2 more
doaj   +1 more source

Spatial and vertical distribution of redox‐sensitive elements and their controlling factors in deep soils under contrasting land cover in the Gulf Coastal Plains

Vadose Zone Journal, Volume 25, Issue 4, July/August 2026.
Abstract Redox processes in soil governs key biogeochemical cycles and influence carbon, nitrogen, and phosphorus dynamics. However, their role in deep vadose zone soils remains poorly understood, particularly in variably saturated environments with heterogeneous hydroclimatic, landscape position, and land use conditions.
Amir Sedaghatdoost, Binayak P. Mohanty
wiley   +1 more source

Neogene Stable Carbon Isotopic Evolution of the Atmosphere and Low‐Latitude Surface Ocean

Paleoceanography and Paleoclimatology, Volume 41, Issue 7, July 2026.
Abstract We reconstruct the stable carbon isotopic composition of Neogene surface ocean dissolved inorganic carbon (δ13CDIC) and atmospheric CO2 (δ13CATM) to serve as input for carbon cycle modeling and proxy‐related studies. The largely observation‐based δ13CDIC reconstructions are inferred from Neogene planktic foraminifer carbonate δ13C records with
J. A. van Dam, G.‐J. Reichart, A. Sluijs   +2 more
wiley   +1 more source

Quaternary pedostratigraphy of the Nevado de Toluca volcano

Revista Mexicana de Ciencias Geológicas, 2018
Paleosol sequences of the Nevado de Toluca volcano (NTV) preserve a detailed record of late Quaternary environmental change. In fact, some studies have been used the NTV paleosols to interpret paleoenvironmental conditions, however some uncertainties ...
Elizabeth Solleiro-Rebolledo, José Luis Macías, Jorge Gama-Castro, Sergey Sedov, Leopold D. Sulerzhitsky   +4 more
doaj  

The Geologic History of the Chehalis Forearc Basin, Washington State, USA

Tectonics, Volume 45, Issue 7, July 2026.
Abstract The Chehalis basin is located between the Cascade arc and the Coast Range in southwest Washington State. It consists of sedimentary and volcanic rocks deposited throughout the Cenozoic and is underlain by the Siletzia terrane, a thick, large igneous province accreted in the Eocene.
R. L. Moe, J. Bershaw, L. M. Staisch, A. R. Streig   +3 more
wiley   +1 more source

The Difference in Shear Behavior and Strength between Loess and Paleosol and Their Prediction of Unsaturated Strength

Applied Sciences
In recent decades, loess landslide events have attracted increasing attention in the South Jingyang tableland. To elucidate the mechanical mechanism of landslide initiation in the region, this work collected undisturbed loess and paleosol samples taking ...
Pan Liu, Fuchu Dai, Zhiquan Huang, Jiaqi Wu   +3 more
doaj   +1 more source

Calcium Nodules as a Proxy for Quaternary Paleoclimate Change on China's Loess Plateau. [PDF]

PLoS ONE, 2015
Different proxies have been used to investigate Quaternary paleoclimate change. Here, we used weathering of calcium nodules in paleosols on China's Loess Plateau as a proxy for Quaternary paleoclimate changes to provide an alternative indicator of these ...
Wenming He, Hongming He, Mingyong Zhu
doaj   +1 more source