Search Results - "WANG Chaowen"
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Middle Triassic to Late Jurassic climate change on the northern margin of the South China Plate: Insights from chemical weathering indices and clay mineralogy
Published in Palaeogeography, palaeoclimatology, palaeoecology (01-01-2022)“…The early Mesozoic greenhouse period was characterized by variable climate conditions. The driving mechanisms of this long-term variability are unclear due to…”
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Facies dependence of the mineralogy and geochemistry of altered volcanic ash beds: An example from Permian-Triassic transition strata in southwestern China
Published in Earth-science reviews (01-03-2019)“…Factors controlling variations in the clay mineralogy and geochemical composition of volcanic ash beds deposited in different types of depositional…”
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Visible and Near-Infrared Reflectance Spectroscopy for Investigating Soil Mineralogy: A Review
Published in Journal of spectroscopy (Hindawi) (01-01-2018)“…Clay minerals are the most reactive and important inorganic components in soils, but soil mineralogy classifies as a minor topic in soil sciences. Revisiting…”
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Magnetostratigraphy and Anisotropy of Magnetic Susceptibility of the Lulehe Formation in the Northeastern Qaidam Basin
Published in Acta geologica Sinica (Beijing) (01-04-2013)“…The timing of onset of deposition of the Lulehe Formation is a significant factor in understanding the genesis of the Qaidam basin and the evolution of the…”
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Qaidam Basin paleosols reflect climate and weathering intensity on the northeastern Tibetan Plateau during the Early Eocene Climatic Optimum
Published in Palaeogeography, palaeoclimatology, palaeoecology (26-12-2018)“…As an important geological archive, paleosols have been widely used in reconstruction of paleoenvironmental and paleoclimatic conditions. In this study, we…”
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Volcanic sources and diagenetic alteration of Permian–Triassic boundary K-bentonites in Guizhou Province, South China
Published in Palaeogeography, palaeoclimatology, palaeoecology (01-04-2019)“…Terrestrial Permian–Triassic boundary (PTB) sequences in South China usually contain one to three ash beds (K-bentonites), which provide evidence of a possible…”
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Influences of Sedimentary Environments and Volcanic Sources on Diagenetic Alteration of Volcanic Tuffs in South China
Published in Scientific reports (16-05-2018)“…Permian-Triassic (P-Tr) altered volcanic ashes (tuffs) are widely distributed within the P-Tr boundary successions in South China. Volcanic altered ashes from…”
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Comparative metabolomic reveals chemotaxonomic markers of resin fossils for identification of botanical origins
Published in International journal of coal geology (01-04-2023)“…Fossil resins are often used to indicate the botanical origins of ancient plants through their secondary metabolites. However, the existing chemotaxonomy of…”
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Assessing the utility of visible-to-shortwave infrared reflectance spectroscopy for analysis of soil weathering intensity and paleoclimate reconstruction
Published in Palaeogeography, palaeoclimatology, palaeoecology (26-12-2018)“…Visible-to-shortwave infrared reflectance (VSWIR) spectroscopy is a fast and efficient approach for estimation of soil properties. In order to test whether…”
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Chlorite chemical composition change in response to the Eocene-Oligocene climate transition on the northeastern Tibetan Plateau
Published in Palaeogeography, palaeoclimatology, palaeoecology (26-12-2018)“…The Eocene-Oligocene climate transition (EOCT) at ~34 Ma is a pronounced environmental reorganization that occurred in the Cenozoic era and has been…”
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The role of organo-clay associations in limiting organic matter decay: Insights from the Dajiuhu peat soil, central China
Published in Geoderma (15-06-2018)“…The mineral-bound organic matter (OM) in soils is of great importance for the global carbon cycle. Long-standing debate exists regarding the mechanisms of soil…”
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New insights into the provenance of Cenozoic strata in the Qaidam Basin, northern Tibet: Constraints from combined U-Pb dating of detrital zircons in recent and ancient fluvial sediments
Published in Palaeogeography, palaeoclimatology, palaeoecology (01-11-2019)“…Determining the provenance of Cenozoic strata in the Qaidam Basin is key to understanding the basin-mountain coupling history in the northern Tibetan Plateau…”
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Terrestrial paleoclimate changes recorded by Pleistocene red earth deposits at the Gaolingpo Paleolithic site, Bose Basin, South China
Published in Palaeogeography, palaeoclimatology, palaeoecology (15-03-2023)“…The Quaternary river sediments at Gaolingpo, Bose Basin, Guangxi Province contain stone hand adzes and microliths of Paleolithic and Neolithic ages, providing…”
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Elevated physical weathering exceeds chemical weathering of clays during the Paleocene-Eocene Thermal Maximum in the continental Bighorn Basin (Wyoming, USA)
Published in Palaeogeography, palaeoclimatology, palaeoecology (01-04-2023)“…The Paleocene-Eocene Thermal Maximum (PETM) global warming event at ∼56 million years before present changed catchment weathering and erosion. Increased…”
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Clay mineral evolution and formation of intermediate phases during pedogenesis on picrite basalt bedrock under temperate conditions (Yunnan, southwestern China)
Published in Catena (Giessen) (01-01-2023)“…•Weathering of picrite basalt produced smectite and mixed-layers.•Mixed-layers K/S, I/S, and I/S/K formed during weathering and pedogenesis of basalt.•Smectite…”
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Color Origin of Greyish-Purple Tremolite Jade from Sanchahe in Qinghai Province, NW China
Published in Minerals (Basel) (01-08-2023)“…Greyish-purple tremolite jade has become well known in the past few years, and the origin of its color has attracted the attention of gemologists. In this…”
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Potential of VNIR spectroscopy for prediction of clay mineralogy and magnetic properties, and its paleoclimatic application to two contrasting Quaternary soil deposits
Published in Catena (Giessen) (01-01-2020)“…The properties of phyllosilicates, iron oxides (oxyhydroxides), and magnetic minerals in soils can respond to changes in pedogenic weathering intensity and…”
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Clay mineralogy of altered tephra beds and facies correlation between the Permian-Triassic boundary stratigraphic sets, Guizhou, south China
Published in Applied clay science (01-07-2017)“…The Permian-Triassic boundary (PTB) successions in south China contain numerous altered volcanic ash (tephra) beds (K-bentonites), which presents the…”
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Kaolinite–smectite mixed-layer clays in the Jiujiang red soils and their climate significance
Published in Geoderma (01-03-2012)“…Clay mineralogy of the Jiujiang soils, classified as red earth (on summit and slope), were investigated using X–ray diffraction (XRD), cation exchange capacity…”
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