Results 1 to 10 of about 890 (167)
The Long-Term Deep Loessal Sediments of Northeast China: Loess or Loessal Paleosols?
Quaternary, 2023 Previous research assumed deep buried loess as the initial composition of the overlying paleosol and failed to address the long-term continuous pedogenic weathering history in the deep loess-paleosol sequence, which was attributed to little understanding
Zhong-Xiu Sun +4 more
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Strength and structure of Q3paleosol
Yantu gongcheng xuebao, 2021 Paleosol is an important part of loess stratum, but there are few researches on its mechanical properties.In order to study the strength and structure of paleosol, Q3paleosol in Xi'an is taken as the research object.Through the way of soil mechanics, the
WANG Li-qin 1, 2, WANG Zhi-qiang 2, XIN Fu 2, LI Kai-yu 2, LI Shuai 2, HU Xiang-yang 3
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Journal of Spectroscopy, 2021 To investigate the microstructure of paleosol and its expansion characteristics, the paleosol of the Zaosheng #3 tunnel of the Yinxi high-speed railway was studied.
Wanjun Ye +5 more
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The distribution of organic carbon fractions in a typical loess-paleosol profile and its paleoenvironmental significance [PDF]
PeerJ, 2018 Background The loess-paleosol sequence on the Loess Plateau has been considered an important paleoclimatic archive to study global climatic and environmental changes in the Quaternary. So far, little attention has been paid to the characteristics of soil
Qingqing Zhang +6 more
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Geosciences, 2022 Pedogenic carbonate samples collected from three Lower Cretaceous (Aptian–Albian) fossil localities in Texas and Oklahoma were analyzed to develop paleoatmospheric pCO2 estimates by measuring the stable carbon isotopes of pedogenic calcite and their co ...
Kate Andrzejewski +3 more
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Frontiers in Earth Science, 2021 Paleoclimatic investigation of loess-paleosol sequences from northern Iran is important for understanding past changes in a region highly sensitive to shifts in precipitation, and along potential routes of past human migration.
Amin Ghafarpour +4 more
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Priabonian, late Eocene chronostratigraphy, depositional environment, and paleosol-trace fossil associations, Pipestone Springs, southwest Montana, USA [PDF]
Acta Palaeontologica Polonica, 2022 Sanidine 40Ar/39Ar ages of lapilli tuffs and the mammalian fauna of Pipestone Springs strata provide a high-resolution chronostratigraphy for upper Eocene (Priabonian) rock units in southwestern Montana.
DEBRA L. HANNEMAN +3 more
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Coastal dunes of Urup Island (Kuril Islands, North-Western Pacific): palaeoclimatic and environmental archive [PDF]
Геосистемы переходных зон, 2022 The Late Holocene phases of aeolian processes have been reconstructed on the basis of dune fields construction. The palaeoenvironmental studies were targeted to following problems: 1) to determine the periods of higher and lower activity of aeolian ...
Nadezhda G. Razjigaeva +3 more
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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
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Plio-Pleistocene Dust Traps on Paleokarst Surfaces: A Case Study From the Carpathian Basin
Frontiers in Earth Science, 2020 Plio-Pleistocene silt/clay-rich deposits and paleo-karst fissure sediments from sites of the northern and southern parts of the Carpathian Basin were investigated.
János Kovács +9 more
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