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Wenshen Xiao
Tongji University
OceanographyGeomorphologyGeologySea iceArctic
21Publications
6H-index
100Citations
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Publications 21
Newest
#1Li Wu (Tongji University)H-Index: 3
#2Wout Krijgsman (UU: Utrecht University)H-Index: 56
Last. Wenshen Xiao (Tongji University)H-Index: 6
view all 6 authors...
Abstract Curve fitting is a powerful tool that has been widely used to explore sediment grain size distributions. Open-source software designed for realization of the technique, however, is scarce. Here we provide a flexible and efficient MATLAB® GUI (Graphic User Interface) program CFLab (Curve Fitting Lab) to perform curve fitting on sediment grain size distributions using Weibull Probability Distribution Functions. CFLab deals with one grain size distribution each time. It considers the curve...
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#1Wenshen Xiao (Tongji University)H-Index: 6
#2Leonid Polyak (OSU: Ohio State University)H-Index: 41
Last. Xiaobo Jin (Tongji University)
view all 9 authors...
Abstract Three sediment cores from the Makarov Basin and Mendeleev Ridge off the Siberian margin were analyzed for a number of litho-, bio- and magnetostratigraphic proxies. Correlation to previously studied Arctic records from Mendeleev to Lomonosov ridges enables paleoceanographic reconstructions for the Middle to Late Pleistocene (estimated ∼0.8 Ma) on orbital time scales. Cyclic changes in lithology corroborated by multiple stratigraphic constraints were tuned to global climate variations ba...
Source
#1Robert M. McKayH-Index: 22
#2L. De SantisH-Index: 8
Last. Z. Xiong
view all 30 authors...
The marine-based West Antarctic Ice Sheet (WAIS) is currently locally retreating because of shifting wind-driven oceanic currents that transport warm waters toward the ice margin, resulting in ice shelf thinning and accelerated mass loss. Previous results from geologic drilling on Antarctica’s continental margins show significant variability in ice sheet extent during the late Neogene and Quaternary. Climate and ice sheet models indicate a fundamental role for oceanic heat in controlling ice she...
1 CitationsSource
#1WANGRujian (Tongji University)H-Index: 13
#2Taoliang Zhang (Tongji University)H-Index: 2
Last. Leonid Polyak (OSU: Ohio State University)H-Index: 41
view all 4 authors...
Abstract Distribution and composition of coarse particles (>250 μm) were investigated in 13 sediment cores from the Chukchi margin, western Arctic Ocean. Petrographic clast identification is supplemented by XRF core scanning, EDS analysis of coal fragments, and AMS 14 C dating of planktic foraminifera for age control. Coal debris distribution is also investigated in surface sediments of the study region for provenance interpretation. The sediment-core study focuses on the interval between the La...
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#1Li Wu (Tongji University)H-Index: 3
#2WANGRujian (Tongji University)H-Index: 13
Last. Jiawang Wu (Tongji University)
view all 7 authors...
Sediment color reflectance contains important information on paleoenvironmental changes. Such data are routinely measured on sediment cores from the Southern Ocean. Their usefulness, however, is undervalued. Here for the first time, color reflectance of an ~520-kyr sediment core retrieved off Prydz Bay (East Antarctica) was intensively investigated to correlate sediment color changes to changes in sediment compositions. Total carbon, total organic carbon, X-ray fluorescence-derived Fe/Ti and Br/...
Source
#1Robert M. McKayH-Index: 22
#2Laura De SantisH-Index: 11
Last. Zhifang XiongH-Index: 1
view all 32 authors...
The marine-based West Antarctic Ice Sheet (WAIS) is currently retreating due to shifting wind-driven oceanic currents that transport warm waters toward the ice margin, resulting in ice shelf thinning and accelerated mass loss of the WAIS. Previous results from geologic drilling on Antarctica's continental margins show significant variability in marine-based ice sheet extent during the late Neogene and Quaternary. Numerical models indicate a fundamental role for oceanic heat in controlling this v...
3 CitationsSource
#1Li WuH-Index: 3
#2WANGRujianH-Index: 13
Last. Tong MaH-Index: 1
view all 7 authors...
The Southern Ocean plays an important role in modulating Pleistocene atmospheric CO2 concentrations, but the underlying mechanisms are not yet fully understood. Here, we report the laser grain-size distribution and Mn geochemical data of a 523 kyr-long sediment record (core ANT30/P1-02 off Prydz Bay; East Antarctica) to trace past physical changes in the deep Southern Ocean. The core sediments are predominantly composed of clay and silt-sized material. Three grain size end-members (EM) as well a...
2 CitationsSource
#1WANGRujian (Tongji University)H-Index: 13
#2Leonid Polyak (OSU: Ohio State University)H-Index: 41
Last. Xiaomei Xu (UCI: University of California, Irvine)H-Index: 3
view all 7 authors...
Abstract We use sediment cores collected by the Chinese National Arctic Research Expeditions from the Alpha Ridge to advance Quaternary stratigraphy and paleoceanographic reconstructions for the Arctic Ocean. Our cores show a good litho/biostratigraphic correlation to sedimentary records developed earlier for the central Arctic Ocean, suggesting a recovered stratigraphic range of ca. 0.6 Ma, suitable for paleoclimatic studies on orbital time scales. This stratigraphy was tested by correlating th...
5 CitationsSource
#1Li Wu (Tongji University)H-Index: 3
#2WANGRujian (Tongji University)H-Index: 13
Last. Wout Krijgsman (UU: Utrecht University)H-Index: 56
view all 6 authors...
Abstract Export-production in the Southern Ocean is thought to be tightly correlated with atmospheric CO2 fluctuations over geological times. Relevant studies are, however, mainly confined to the Atlantic and Pacific sectors of the Southern Ocean and often only cover the last glacial-interglacial cycle. Here, we present a sediment record retrieved off Prydz Bay (East Antarctica) spanning the last ~ 520 kyrs. We show that the distribution pattern of local export production is closely coupled with...
4 CitationsSource
#1Haifeng Zhang (SOA: State Oceanic Administration)H-Index: 1
#2WANGRujian (Tongji University)H-Index: 13
Last. Wenshen Xiao (Tongji University)H-Index: 6
view all 3 authors...
The records of high-resolution terrestrial biological markers (biomarkers) from Core B2-9 from the northern Bering Sea Slope over the last 9.6 ka BP were presented in the study. Variations in input of terrestrial long-chain nalkanes (referred to as n-alkanes) and vegetation structure in their source regions were investigated. The results show that the nC27 is the main carbon peak and has the greatest contribution rate of the total n-alkane content; this might be related to the abundance of woody...
1 CitationsSource
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