Results 171 to 180 of about 12,654 (223)

Influence of Quaternary Paleoclimate Change on the Permeability of the Loess–Paleosol Sequence in the Loess Plateau, Northern China

Earth Surface Processes and Landforms, 2020
Permeability differences in multi‐cycle loess–paleosol aeolian sediments, which are still poorly understood, have the potential to significantly improve our understanding of climatic change during the glacial–interglacial periods of the Quaternary.
Kai Hou, Yao Chen, Hui Qian
exaly   +2 more sources

Pedogenic processes in loess-paleosol sediments: Clues from Li isotopes of leachate in Luochuan loess

, 2021
Tracing pedogenic processes is fundamental for reconstructing climatic and environmental changes using loess deposits. Lithium isotopes can serve as a sensitive tracer to unravel these processes, owing to its active behaviors without effect by redox and ...
Mao-Yong He, Ji-Bao Dong, Zhang-Dong Jin, Chun-Yao Liu, Jun Xiao, Fei Zhang, He Sun, Zhi-Qi Zhao, Long-Fei Gou, Wei-Guo Liu, Chong-Guang Luo, You-Gui Song, Longjie Ma, Li Deng   +13 more
semanticscholar   +1 more source

Pleistocene dynamics of dust accumulation and soil formation in the southern Caspian Lowlands - New insights from the loess-paleosol sequence at Neka-Abelou, northern Iran

, 2021
The southern Caspian Lowland sensitively reacted to Pleistocene climate change and is a key area for reconstructing climate dynamics and landscape evolution in Southern Eurasia. Loess-paleosol sequences (LPS) of the northern foothills of Alborz Mountains
M. Kehl, Stefan Vlaminck, Tina Köhler, Christian Laag, C. Rolf, S. Tsukamoto, M. Frechen, M. Sumita, H. Schmincke, F. Khormali   +9 more
semanticscholar   +1 more source

The disparity in the abundance of C4 plants estimated using the carbon isotopic composition of paleosol components

, 2021
Long-term paleovegetational records from continental settings help in comprehending regional and global forcing on the abundance of C3-C4 plants in the past.
V. Sarangi, Shailesh Agrawal, P. Sanyal
semanticscholar   +1 more source

Stable Carbon Isotopes From Paleosol Carbonate and Herbivore Enamel Document Differing Paleovegetation Signals in the Eastern African Plio-Pleistocene

Review of Palaeobotany and Palynology, 2019
Analyses of stable carbon isotopes (δ13C) from herbivore dental enamel and paleosol carbonates are important tools for Plio-Pleistocene paleovegetation reconstructions.
Kay Behrensmeyer, Ignacio Lazagabaster, Joshua R Robinson   +2 more
exaly   +2 more sources

The deficiency of organic matter 14C dating in Chinese Loess-paleosol sample

, 2020
In the absence of reliable charcoal, wood or plant macrofossils, organic matter in loess-paleosols is often used for 14C dating. However, organic matter can be contaminated by a variety of carbon sources within the sediments, and this may affect the ...
Peng Cheng, G. Burr, Wei-Jian Zhou, Ning Chen, Yao-Yao Hou, Hua Du, Yunchong Fu, Xue-Feng Lu   +7 more
semanticscholar   +1 more source

The Cause of Extremely High Magnetic Susceptibility of the S5S1 Paleosol in the Central Chinese Loess Plateau

Quaternary International, 2018
The paleosol unit S5S1, which corresponds to Marine Isotope Stage (MIS) 13, is the most prominent paleosol layer in the central Chinese Loess Plateau (CLP). S5S1 has extremely high magnetic susceptibility, but it remains uncertain whether this is related
Qiuzhen Yin, Jia Jia, Dun-Sheng Xia
exaly   +2 more sources

Experimental study on the shear behavior of loess and paleosol based on ring shear tests

Engineering Geology, 2019
Landslide hazards frequently occur in the Chinese Loess Plateau every year, causing devastating casualties, damage to engineering structures, and reduction in land resources. This work presents an experimental investigation of four samples retrieved from
Wei-Na Yuan, Wen Fan, Chengcheng Jiang, Xiang-Lin Peng   +3 more
semanticscholar   +1 more source

Optical dating of Holocene paleosol development and climate changes in the Yili Basin, arid central Asia

The Holocene, 2019
Optically stimulated luminescence (OSL) dating was conducted on the K-feldspar and quartz fractions of a Holocene loess-paleosol sequence in the Yili Basin, in the core area of arid central Asia (ACA). Age overestimation using the post-IR IR (pIR50IR170)
Leibin Wang, J. Jia, Hui Zhao, Hao Liu, Yan-Wu Duan, Hai-Chao Xie, D. Zhang, Fa-Hu Chen   +7 more
semanticscholar   +1 more source

Permeability and Groundwater Enrichment Characteristics of the Loess-Paleosol Sequence in the Southern Chinese Loess Plateau

Water (Switzerland), 2020
To determine the permeability characteristics and the groundwater enrichment conditions of loess and paleosol layers, this article systematically investigated the permeability, magnetic susceptibility, porosity, and carbonate mass percentage of ...
Tianjie Shao, Jingbo Zhao, Dianxing Song
exaly   +2 more sources