Results 21 to 30 of about 726 (131)

Morphological record of pedogenesis and landscape evolution in the upper quaternary pedosediments within the upper Volga river basin

open access: yesБюллетень Почвенного института им. В.В. Докучаева, 2016
The morphological record of pedogenesis (mostly at a micromorphological scale) and the features of paleosols developed at the northern geographical extremity of the MIS3 paleopedoshpere (including the Bryansk fossil soils) are described.
A. V. Rusakov, S. N. Sedov
doaj   +1 more source

Paleosols from the Kazanian red beds of the Sentyak section, Russia

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2022
This article summarizes the results of a comprehensive study of paleosol profiles in the Lower Kama Region – from the Kazanian reference section near Sentyak and from the reference section of the boundary deposits of the Ufimian and Kazanian in Elabuga ...
F.A. Mouraviev   +3 more
doaj   +1 more source

Pedodiagenetic Characterization of Cretaceous Paleosols in Southwest Minas Gerais, Brazil

open access: yesRevista Brasileira de Ciência do Solo
The influence of post-burial geological processes on preserving pedogenic properties has great importance in identifying ancient paleosols both in the field and in a laboratory.
Diego Luciano do Nascimento   +2 more
doaj   +1 more source

HOLOCENE ENVIRONMENTAL CHANGE IN SOUTH-EAST ALTAI EVIDENCED BY SOIL RECORD

open access: yesGeography, Environment, Sustainability, 2019
The soils of Russian Altai highlands were used as a paleoenvironmental archive, as a source of dating material, and as a chronostratigraphic marker to describe Holocene environmental change in the studied area. Based on calibration intervals of 14C dates
Maria A. Bronnikova   +4 more
doaj   +1 more source

Spatial Patterns of Chemical Weathering at the Basal Tertiary Nonconformity in California from Multispectral and Hyperspectral Optical Remote Sensing

open access: yesRemote Sensing, 2019
Visible through shortwave (VSWIR) spectral reflectance of the geologic units across the basal Tertiary nonconformity (BTN) is characterized at three spatially disparate locations in California. At two of these sites, location-specific spectral endmembers
Francis J. Sousa, Daniel J. Sousa
doaj   +1 more source

From alluvial fans to lacustrine systems: trace fossils applied to paleoenvironmental analysis in the Taubaté Basin (Brazil) [PDF]

open access: yesBrazilian Journal of Geology
Studies integrating ichnology and sedimentology in paleoenvironmental interpretations are rare in Brazilian rift successions. This study applies an integrated ichno-sedimentological analysis to a well core from the Resende and Tremembé Formations ...
Vittor Cambria   +4 more
doaj   +2 more sources

Repeated Pleistocene Permafrost Episodes in the Western Pannonian Basin

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT Concerning the study of past periglacial processes, the Pannonian Basin is a key area as it contains the southernmost frost polygons found in Central Europe. The presence or absence of permafrost is still, however, a matter of debate, and data on the timing of frost action are also scarce.
Krisztina Sebe   +5 more
wiley   +1 more source

Evidence for the continental origin of Pliocene deposits in the central Baja California peninsula, Mexico, and implications for controls on biodiversity

open access: yesSedimentology, EarlyView.
ABSTRACT Previous studies have documented genetic divergence within the last few million years between northern and southern populations of terrestrial plants and animals along the Baja California peninsula, with many studies hypothesising that the divergence is due to an ancient seaway that crossed the central peninsula and created a physical barrier ...
Kevin K. Gardner   +8 more
wiley   +1 more source

Late Pleistocene to Holocene environmental changes from δ13C determinations in soils at Teotihuacan, Mexico [PDF]

open access: yesGeofísica Internacional, 2006
Stable carbon isotopic signature (δ13C) of soil organic matter (SOM) is used as a high-spatial resolution tool to infer environmental changes during late Pleistocene to Present in the Teotihuacan valley, Mexico.
E. Vallejo Gómez   +6 more
doaj  

Discriminating Arid Ecosystems and Tracking Desertification Dynamics: Evidence From Grain‐Size End‐Member in the Manas River Basin, Northern Tianshan Mountains

open access: yesLand Degradation &Development, Volume 37, Issue 14, Page 10174-10186, 30 August 2026.
ABSTRACT The ecosystem of the Manas River Basin, composed of mountains, oases, and deserts, constitutes an ideal natural laboratory for investigating surface processes and environmental evolution in arid regions. Elucidating the provenance, transport dynamics, and climate response mechanisms of surface sediments in this system is critical for advancing
Jiangyong Wang   +5 more
wiley   +1 more source

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