PubAg

Main content area

You searched for: Author "Shen, Chuan-Chou" Remove constraint Author: "Shen, Chuan-Chou"
Start Over

Search

45  Search Results

« Previous | 1 - 20 of 45 |
Number of results to display per page

Search Results

1. Giant tufas of Lake Van record lake-level fluctuations and climatic changes in eastern Anatolia,Turkey

Author:
Shen, Chuan-Chou,   et al.   ; Yeşilova, Çetin; Gülyüz, Erhan; Huang, Ci-Rong;     Show all 4 Authors
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2019 v.533 pp. 109226
ISSN:
0031-0182
Subject:
altitude; ancient lakes; bicarbonates; calcium; carbonates; climate change; climatic factors; groundwater; ions; salinity; temperate zones; terraces; thorium; uranium
Abstract:
... Lake Van, the largest soda lake in the world, is a key area where climatic changes are recorded by well-preserved sedimentary successions. In spite of the existence of such sequences, the ancient lake levels are still under debate. Here, we present U/Th ages of tufa layers exposed along the northern margin of the lake near the town of Adilcevaz. Tufa are interpreted to form during humid and temper ...
DOI:
10.1016/j.palaeo.2019.05.048

2. High-resolution reconstruction of Indian summer monsoon during the Bølling-Allerød from a central Indian stalagmite

Author:
Shen, Chuan-Chou,   et al.   ; Gautam, P.K.; Narayana, A.C.; Band, S.T.; Yadava, M.G.; Ramesh, R.; Wu, Chung-Che;     Show all 7 Authors
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2019 v.514 pp. 567-576
ISSN:
0031-0182
Subject:
Earth system science; climate; data collection; glaciation; marine sediments; monsoon season; oxygen; rain; solar radiation; stable isotopes; India; Indian Ocean
Abstract:
... Although the Indian monsoon during the last deglaciation has been reconstructed from marine sediments from the Indian Ocean, a detailed high resolution (decadal or less) reconstruction from terrestrial records such as speleothems has been lacking from the core monsoon zone of India. Such reconstructions can help determine whether the monsoon is controlled by insolation alone or also other feedback ...
DOI:
10.1016/j.palaeo.2018.11.006

3. Early-Holocene monsoon instability and climatic optimum recorded by Chinese stalagmites

Author:
Shen, Chuan-Chou,   et al.   ; Yang, Xunlin; Yang, Hong; Wang, Baoyan; Huang, Li-Jung; Edwards, R Lawrence; Cheng, Hai;     Show all 7 Authors
Source:
TheHolocene 2019 v.29 no.6 pp. 1059-1067
ISSN:
1477-0911
Subject:
Holocene epoch; caves; monsoon season; oxygen; stable isotopes; summer; China
Abstract:
... The timing and duration of the Holocene East Asian summer monsoon (EASM) maximum and the interpretation of Chinese stalagmite δ¹⁸O records have long been disputed. Notably, interpretations of Holocene EASM variations are frequently based on a single record or study area and are often contradictory. In this study, we conducted stable isotope analyses of four Holocene stalagmites from Chongqing, sou ...
DOI:
10.1177/0959683619831433

4. A multi–methodological approach to reconstruct the configuration of a travertine fissure ridge system: The case of the Cukor quarry (Süttő, Gerecse Hills, Hungary)

Author:
Shen, Chuan–Chou,   et al.   ; Török, Ágnes; Claes, Hannes; Brogi, Andrea; Liotta, Domenico; Tóth, Ádám; Mindszenty, Andrea; Kudó, István; Kele, Sándor; Huntington, Kate W.; Swennen, Rudy;     Show all 11 Authors
Source:
Geomorphology 2019
ISSN:
0169-555X
Subject:
carbon dioxide; carbonates; deaeration; electrical resistance; geochemistry; geophysics; landscapes; quarries; surveys; tectonics; tomography; topography; Hungary
Abstract:
... Travertines are continental carbonates that precipitate from spring waters, mainly due to CO2 degassing. They are widely quarried as building stone, which has led to numerous (often abandoned) travertine quarry outcrops. These and other outcrops, however, merely represent the surface expressions of the complex architecture of travertine bodies and their deep–rooted feeding systems. Integration of ...
DOI:
10.1016/j.geomorph.2019.106836

5. Relict Pleistocene calcareous tufa of the Chlupáčova sluj Cave, the Bohemian Karst, Czech Republic: A petrographic and geochemical record of hydrologically-driven cave evolution

Author:
Shen, Chuan-Chou,   et al.   ; Suchý, Václav; Zachariáš, Jiří; Tsai, Hsien-Chen; Yu, Tsai-Luen; Svetlik, Ivo; Havelcová, Martina; Borecká, Lenka; Machovič, Vladimír;     Show all 9 Authors
Source:
Sedimentary geology 2019 v.385 pp. 110-125
ISSN:
0037-0738
Subject:
Bryophyta; Pleistocene epoch; algae; aquifers; bacteria; biomarkers; calcite; carbonates; cold; crystals; cutting; fabrics; freshwater; gypsum; hydrocarbons; mosses and liverworts; sediments; silica; sodium chloride; solar radiation; stable isotopes; tectonics; water erosion; Czech Republic
Abstract:
... The tufas of the presently shallow Chlupáčova sluj Cave document an unusual history of deeper to shallower hydrologic processes in cave evolution. The wider geological context of the cave, along with fluid inclusion and stable isotope (C and O) analyses of calcite from tectonic veins cutting through its wallrock, are evidence of the origin of the cave in the deeper subsurface, under the influence ...
DOI:
10.1016/j.sedgeo.2019.03.014

6. Late Holocene reef ecosystem baseline: Field evidence from the raised reef terraces of Kodakara and Kikai Islands, Ryukyu Islands, Japan

Author:
Shen, Chuan-Chou,   et al.   ; Hongo, Chuki; Lin, Ke;     Show all 3 Authors
Source:
Quaternary international 2017 v.455 pp. 8-17
ISSN:
1040-6182
Subject:
Acropora; climate change; corals; ecosystems; environmental factors; genetic variation; humans; islands; paleoecology; reefs; sea level; solar radiation; species diversity; surface water temperature; terraces; Ryukyu Archipelago
Abstract:
... To better understand and evaluate how present-day and future reef ecosystems are being impacted by natural climate change and human activity, it is important to establish reef ecosystem baselines from paleoecological records. Here we present paleoecological data, including coral cover and genus and species composition, for two raised reef islands (Kodakara and Kikai islands) located in the Ryukyu ...
DOI:
10.1016/j.quaint.2017.08.054

7. Highly-sensitive open-cell LA-ICPMS approaches for the quantification of rare earth elements in natural carbonates at parts-per-billion levels

Author:
Shen, Chuan-Chou,   et al.   ; Wu, Chung-Che; Burger, Marcel; Günther, Detlef; Hattendorf, Bodo;     Show all 5 Authors
Source:
Analytica chimica acta 2018 v.1018 pp. 54-61
ISSN:
0003-2670
Subject:
United States Geological Survey; analytical chemistry; calcium; carbonates; detection limit; environmental science; gas exchange; mass spectrometry; rare earth elements; East Timor
Abstract:
... This work presents a high-sensitivity approach to quantify ultra-trace concentrations of rare earth elements (REEs) in speleothem carbonates using open-cell laser ablation-sector field-inductively coupled plasma mass spectrometry (open-cell LA-SF-ICPMS). Specifically, open-cell LA in combination with a gas exchange device enabled sampling of large-scale carbonate specimens in an ambient environmen ...
DOI:
10.1016/j.aca.2018.02.021

8. C-Sr-Pb isotopic characteristics of PM2.5 transported on the East-Asian continental outflows

Author:
Shen, Chuan-Chou,   et al.   ; Jung, Chien-Cheng; Chou, Charles C.-K.; Lin, Chuan-Yao; Lin, Yu-Chi; Huang, Yi-Tang; Tsai, Chao-Yang; Yao, Pei-Hsuan; Huang, Ci-Rong; Huang, Wei-Ru; Chen, Mei-June; Huang, Shu-Hui; Chang, Shuen-Chin;     Show all 13 Authors
Source:
Atmospheric research 2019 v.223 pp. 88-97
ISSN:
0169-8095
Subject:
aerosols; air quality; carbon; dust; emissions; hydrocarbons; lead; monsoon season; particulates; pollution; seasonal variation; spring; stable isotopes; strontium; summer; urban areas; winter; China; Taiwan
Abstract:
... This study investigated isotopic signatures of carbon (C), lead (Pb) and strontium (Sr) in PM2.5 samples collected from two paired sites (urban vs. rural/background) in northern Taiwan during the summer of 2015 and the spring of 2016, respectively. Significant seasonality was revealed in the isotopic signatures of C and Pb, whereas no seasonal difference was observed in 87Sr/86Sr ratio. The values ...
DOI:
10.1016/j.atmosres.2019.03.011

9. North Atlantic influences on climate conditions in East-Central Europe in the late Holocene reflected by flowstone compositions

Author:
Shen, Chuan-Chou,   et al.   ; Demény, Attila; Kern, Zoltán; Németh, Alexandra; Frisia, Silvia; Hatvani, István Gábor; Czuppon, György; Leél-Őssy, Szabolcs; Molnár, Mihály; Óvári, Mihály; Surányi, Gergely; Gilli, Adrian; Wu, Chung-Che;     Show all 13 Authors
Source:
Quaternary international 2019 v.512 pp. 99-112
ISSN:
1040-6182
Subject:
Holocene epoch; North Atlantic Oscillation; air temperature; climatic factors; cold; humidity; monitoring; stable isotopes; Europe
Abstract:
... A stalagmitic flowstone deposit from the Béke Cave (called Nagy-tufa deposit), East-Central Europe is characterized by complex, climate related textural and geochemical records as documented from a drill core (BNT-2 core) covering the period of 4 to 1 ka cal BP. The core location was monitored in an earlier study. Based on monitoring, textural and chemical relationships, it has been hypothesized t ...
DOI:
10.1016/j.quaint.2019.02.014

10. Quaternary history of the Lake Magadi Basin, southern Kenya Rift: Tectonic and climatic controls

Author:
Shen, Chuan-Chou,   et al.   ; Bernhart Owen, R.; Renaut, Robin W.; Muiruri, Veronica M.; Rabideaux, Nathan M.; Lowenstein, Tim K.; McNulty, Emma P.; Leet, Kennie; Deocampo, Daniel; Luo, Shangde; Deino, Alan L.; Cohen, Andrew; Sier, Mark J.; Campisano, Christopher; Billingsley, Anne; Mbuthia, Anthony; Stockhecke, Mona;     Show all 17 Authors
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2019 v.518 pp. 97-118
ISSN:
0031-0182
Subject:
Bacillariophyceae; basalt; basins; calcite; carbon dioxide; climate; climate change; drainage; dry environmental conditions; freshwater; hot springs; landscapes; pH; paleoecology; paleosolic soil types; rare earth elements; salinity; salt lakes; soil formation; tectonics; tephra; trona; weathering; wet-dry cycles; zeolites; Kenya
Abstract:
... Sediments from the Magadi Basin (south Kenya Rift) preserve a one-million-year palaeoenvironmental record that reflects interactions between climatic, volcanic and tectonic controls. Climate changes that impacted sedimentation include wet-dry cycles on variable timescales and an overall progressive trend towards greater aridity. Volcanic influences involved inputs of tephra to the basin, significa ...
DOI:
10.1016/j.palaeo.2019.01.017

11. Calcite veining and feeding conduits in a hydrothermal system: Insights from a natural section across the Pleistocene Gölemezli travertine depositional system (western Anatolia, Turkey)

Author:
Shen, Chuan-Chou,   et al.   ; Capezzuoli, Enrico; Ruggieri, Giovanni; Rimondi, Valentina; Brogi, Andrea; Liotta, Domenico; Alçiçek, Mehmet Cihat; Alçiçek, Hülya; Bülbül, Ali; Gandin, Anna; Meccheri, Marco; Baykara, Mehmet Oruç;     Show all 12 Authors
Source:
Sedimentary geology 2018 v.364 pp. 180-203
ISSN:
0037-0738
Subject:
basins; calcite; crystals; deaeration; salinity; temperature; terracing; thorium; uranium; Turkey (country)
Abstract:
... Linking the architecture of structural conduits with the hydrothermal fluids migrating from the reservoir up to the surface is a key-factor in geothermal research. A contribution to this achievement derives from the study of spring-related travertine deposits, but although travertine depositional systems occur widely, their feeding conduits are only rarely exposed. The integrated study carried out ...
DOI:
10.1016/j.sedgeo.2017.12.012

12. Indian summer monsoon variability in southern India during the last deglaciation: Evidence from a high resolution stalagmite δ18O record

Author:
Shen, Chuan-Chou,   et al.   ; Raza, Waseem; Ahmad, Syed Masood; Lone, Mahjoor Ahmad; Sarma, Drona Srinivasa; Kumar, Anil;     Show all 6 Authors
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2017 v.485 pp. 476-485
ISSN:
0031-0182
Subject:
X-ray diffraction; aragonite; climate; dry environmental conditions; isotopes; monsoon season; oxygen; spectral analysis; time series analysis; variance; India
Abstract:
... We present a high resolution record of Indian summer monsoon (ISM) variability during the last deglacial period. The record is based on high precision measurements of oxygen isotopes (δ¹⁸O) in 263 sub-samples from a ~18cm long stalagmite (VSPM1) sample collected from the Valmiki cave in the southern India. The chronological framework is based on high precision U-Th dating in 8 sub-samples at regul ...
DOI:
10.1016/j.palaeo.2017.07.003

13. δ18O, δ13C, elemental content and depositional features of a stalagmite from Yelang Cave reflecting climate and vegetation changes since late Pleistocene in central Guizhou, China

Author:
Shen, Chuan-Chou,   et al.   ; Zhao, Min; Li, Hong-Chun; Kang, Su-Chen; Chou, Chun-Yen;     Show all 5 Authors
Source:
Quaternary international 2017 v.452 pp. 102-115
ISSN:
1040-6182
Subject:
C3 plants; aluminum; anthropogenic activities; calcite; carbon; climatic factors; deforestation; detritus; drying; iron; magnesium; manganese; monsoon season; oxygen; radiocarbon dating; solar radiation; stable isotopes; strontium; summer; temperature; vegetation; China
Abstract:
... A 13.5-cm long stalagmite from Yelang Cave in central Guizhou provides another example of AMS ¹⁴C dating on stalagmites which are not suitable for ²³⁰Th/U dating due to very low U content and low ²³⁰Th/²³²Th ratio. This record duplicates the published stalagmite record of 20120824-13 from the same cave (Zhao et al., 2015) not only on δ¹⁸O and δ¹³C records, but also on major growth hiatuses, facili ...
DOI:
10.1016/j.quaint.2016.07.022

14. An insight into the western Pacific wintertime moisture sources using dual water vapor isotopes

Author:
Shen, Chuan-Chou,   et al.   ; Rangarajan, Ravi; Laskar, Amzad H.; Bhattacharya, Sourendra K.; Liang, Mao-Chang;     Show all 5 Authors
Source:
Journal of hydrology 2017 v.547 pp. 111-123
ISSN:
0022-1694
Subject:
air; cold; humidity; hydrochemistry; isotopes; latitude; mixing; models; monsoon season; oceans; paleoclimatology; regression analysis; subtropics; water vapor; winter; Taiwan
Abstract:
... Continuous measurements of isotopic ratios in atmospheric water vapor in a western Pacific region (Taipei, Taiwan) in two winters (2011 and 2012) were made and analyzed to understand the moisture source characteristics. In wintertime, the so-called East Asian Monsoon dominates, largely affecting the climate and meteorology of this region. Being located in the subtropical region, Taipei provides an ...
DOI:
10.1016/j.jhydrol.2017.01.047

15. Decreasing monsoon precipitation in southwest China during the last 240 years associated with the warming of tropical ocean

Author:
Shen, Chuan-Chou,   et al.   ; Tan, Liangcheng; Cai, Yanjun; An, Zhisheng; Cheng, Hai; Gao, Yongli; Edwards, R. Lawrence;     Show all 7 Authors
Source:
Climate dynamics 2017 v.48 no.5-6 pp. 1769-1778
ISSN:
0930-7575
Subject:
climate models; drought; global warming; growth rings; monsoon season; oxygen; rain; simulation models; stable isotopes; surface water temperature; Arabian Sea; Bay of Bengal; China; Himalayan region; India; Nepal
Abstract:
... Based on an absolutely dated stalagmite δ¹⁸O record from Yunnan province, China, we reconstructed monsoon precipitation variations in southwest China since 1760 AD with a resolution of about 2 years. Combining the speleothem δ¹⁸O and observed rainfall records, we find an overall decreasing trend in monsoon precipitation in this region and suggest that the recent drought in 2009–2012 AD has been th ...
DOI:
10.1007/s00382-016-3171-y

16. High-resolution δ18O and δ13C records of an AMS 14C and 230Th/U dated stalagmite from Xinya Cave in Chongqing: Climate and vegetation change during the late Holocene

Author:
Shen, Chuan-Chou,   et al.   ; Li, Jun-Yun; Li, Hong-Chun; Li, Ting-Yong; Mii, Horng-Sheng; Yu, Tsai-Lune; Xu, Xiaomei;     Show all 7 Authors
Source:
Quaternary international 2017 v.447 pp. 75-88
ISSN:
1040-6182
Subject:
dissolved carbon dioxide; solar radiation; uncertainty; caves; monsoon season; seepage; carbon; rain; summer; anthropogenic activities; soil profiles; stable isotopes; oxygen; vegetation; climate; China
Abstract:
... Two stalagmites, XY07-8 and -11 collected from Xinya Cave in northeast Chongqing of China, were dated by ²³⁰Th/U and AMS ¹⁴C methods. The Holocene parts of the stalagmites contain high Th contents, resulting large uncertainties of the ²³⁰Th/U ages. Two precise ²³⁰Th/U dates in the pre-Holocene part of XY07-8 agree well with the AMS ¹⁴C ages. The Holocene ¹⁴C dates of the two stalagmites reveal a 6 ...
DOI:
10.1016/j.quaint.2017.06.075

17. Evidence of solar insolation and internal forcing of sea surface temperature changes in the eastern tropical Indian Ocean during the Holocene

Author:
Shen, Chuan-Chou,   et al.   ; Li, Ziye; Chen, Min-Te; Lin, Da-Cheng; Shi, Xuefa; Liu, Shengfa; Wang, Houjie; Yokoyama, Yusuke; Mii, Horng-Sheng; Troa, Rainer Arief; Zuraida, Rina; Triarso, Eko; Hendrizan, Marfasran;     Show all 13 Authors
Source:
Quaternary international 2018 v.490 pp. 1-9
ISSN:
1040-6182
Subject:
El Nino; Holocene epoch; Retaria; calcium; carbon; climate; climate change; coral reefs; corals; hydrogen; islands; isotopes; magnesium; marine sediments; meteorological data; monsoon season; plants (botany); solar radiation; strontium; surface water; surface water temperature; tracer techniques; waxes; Indian Ocean; Indonesia
Abstract:
... The forcing and mechanisms governing sea surface temperature (SST) variations in the Indo-Pacific Warm Pool (IPWP) are complex. Insight into the full spectrum of IPWP climate dynamics, however, is limited by the spatial and temporal coverage of the climate data. In particular, the relationships among the changes in the SSTs, the precipitation patterns mainly associated with rainfalls from Asian Mo ...
DOI:
10.1016/j.quaint.2018.04.001

18. Holocene surface hydroclimate changes in the Indo-Pacific warm pool

Author:
Shen, Chuan-Chou,   et al.   ; Li, Ziye; Chen, Min-Te; Lin, Da-Cheng; Wang, Houjie; Shi, Xuefa; Liu, Shengfa; Yokoyama, Yusuke; Yamamoto, Masanobu; Mii, Horng-Sheng; Troa, Rainer Arief; Zuraida, Rina; Triarso, Eko; Hendrizan, Marfasran;     Show all 14 Authors
Source:
Quaternary international 2018 v.482 pp. 1-12
ISSN:
1040-6182
Subject:
El Nino; Holocene epoch; Retaria; biomarkers; calcium; isotopes; magnesium; models; oxygen; plankton; radiocarbon dating; surface water temperature; tropics; Indian Ocean; Indonesia
Abstract:
... The Indo-Pacific warm pool (IPWP) is an area hosting key tropical climate processes such as the El Niño Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD). The tropical climate processes, via various feedback mechanisms, control the surface ocean climate in the Indian Ocean and its surrounding continents on annual to inter-annual timescales. However, little has been known about how the trop ...
DOI:
10.1016/j.quaint.2018.04.027

19. Refining temperature reconstructions with the Atlantic coral Siderastrea siderea

Author:
Shen, Chuan-Chou,   et al.   ; DeLong, Kristine L.; Maupin, Christopher R.; Flannery, Jennifer A.; Quinn, Terrence M.;     Show all 5 Authors
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2016 v.462 pp. 1-15
ISSN:
0031-0182
Subject:
calcium; carbon; corals; national parks; oxygen; refining; seasonal variation; strontium; temperature; uncertainty; Gulf of Mexico
Abstract:
... Developing coral-based temperature reconstructions for a particular coral species requires determining the optimal sampling path orientation and resolution for geochemical analysis to avoid sampling artifacts and to increase reproducibility. Furthermore, a robust coral archive should have high intracolony and intercolony reproducibility for determining the common environmental signal. Here we asse ...
DOI:
10.1016/j.palaeo.2016.08.028

20. Improved analytical techniques of sulfur isotopic composition in nanomole quantities by MC-ICP-MS

Author:
Shen, Chuan-Chou,   et al.   ; Yu, Tsai-Luen; Wang, Bo-Shian; Wang, Pei-Ling; Yang, Tsanyao Frank; Burr, George S.; Chen, Yue-Gau;     Show all 7 Authors
Source:
Analytica chimica acta 2017 v.988 pp. 34-40
ISSN:
0003-2670
Subject:
analytical chemistry; atomic absorption spectrometry; atomization; isotope fractionation; marine sediments; minerals; sodium; sulfur; temperature
Abstract:
... We propose an improved method for precise sulfur isotopic measurements by multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) in conjunction with a membrane desolvation nebulization system. The problems of sulfur loss through the membrane desolvation apparatus are carefully quantified and resolved. The method overcomes low intrinsic sulfur transmission through the instrument, ...
DOI:
10.1016/j.aca.2017.08.012