Results 21 to 30 of about 3,414 (218)
Soil Systems, 2022 The identification of iron (Fe) forms throughout a sediment sequence was investigated by X-ray Absorption Near Edge Spectroscopy (XANES) and Extended X-ray Absorption Fine Structure (EXAFS) at the Fe K-edge, paired with Raman micro-spectroscopy.
Beatrice Giannetta +5 more
doaj +1 more source
Reconstructing Precambrian pCO2 and pO2 Using Paleosols
, 2021 Paleosols formed in direct contact with the Earth's atmosphere, so they can record the composition of the atmosphere through weathering processes and products.
Sheldon, N.D. +2 more
core +1 more source
Geography, Environment, Sustainability, 2023 The history of the early Middle Pleistocene small mammal faunas of Eastern Europe is very complicated. The early Middle Pleistocene which spanned from the Brunhes-Matuyama transition (772.9 ka BP, within MIS 19) till the beginning of the Likhvin ...
Anastasia K. Markova +2 more
doaj +1 more source
HOLOCENE ENVIRONMENTAL CHANGE IN SOUTH-EAST ALTAI EVIDENCED BY SOIL RECORD
Geography, 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
Paleosols from the Kazanian red beds of the Sentyak section, Russia
Учёные 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
Remote 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
Insect Trace Fossil Associations in Paleosols: The Coprinisphaera Ichnofacies [PDF]
, 2000 Analysis of fifty-eight paleosol trace fossil assemblages, ranging from the Triassic to the Recent, allows refinement of continental ichnofacies models and the proposal of a Coprinisphaera ichnofacies.
Genise, Jorge Fernando +4 more
core +1 more source
Carbon storage and DNA absorption in allophanic soils and paleosols
, 2014 Andisols and andic paleosols dominated by the nanocrystalline mineral allophane sequester large amounts of carbon (C), attributable mainly to its chemical bonding with charged hydroxyl groups on the surface of allophane together with its physical ...
Louis A. Schipper +11 more
core +1 more source
From alluvial fans to lacustrine systems: trace fossils applied to paleoenvironmental analysis in the Taubaté Basin (Brazil) [PDF]
Brazilian Journal of GeologyStudies 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
Бюллетень 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