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Luminescence Dating and Bracketing Time of the Youngest Toba Tuff Deposits in the Quaternary Sediments of Purna Alluvial Basin,Central India: 《Journal of Earth Science》2022年第4期1007-1016,共10页Singh Ajab K.Srivastava Ashok Chauhan Naveen; financially supported by Science and Engineering Research Board(SERB),New Delhi,India in the form of major research project(No.SB/S4/ES-692/2013)awarded to AKS。; Light gray to yellowish brown youngest Toba tuff(YTT)ash,preserved in the Quaternary sediments of India,have been used as a tool to know depositional and bracketing time period of the same in the sediments through app...; 关键词：youngest Toba tuff TEPHRA optically stimulated luminescence QUATERNARY SEDIMENTS depositional age

Short-Range-Order Minerals and Dominant Accessory Properties Controlling P Sorption in Tropical Tephra Soils of the Cameroon Volcanic Line: 《Open Journal of Soil Science》2019年第8期113-139,共27页Roger Kogge Enang Bernard Palmer Kfuban Yerima Georges Kogge Kome Eric van Ranst; Knowledge on soil properties likely to influence P sorption in tephra soils is very important for sustainable management of available P. Sorption studies on six tephra soils were conducted to relate P sorption to soil...; 关键词：ALLOPHANE FERRIHYDRITE MOUNT Kupe MOUNT Manengouba Sorption Isotherms

Holocene vegetation change in relation to fire and volcanic events in Jilin, Northeastern China被引量：6: 《Science China Earth Sciences》2015年第8期1404-1419,共16页ZHAO HongLi LI XiaoQiang Valerie A.HALL; supported by the National Natural Science Foundation of China (Grant No. 41202260);the Chinese Academy of Sciences Strategic Priority Research Program (Grant No. XDA01020304);Overseas Research Scholarship (UK, 2007–2010); Volatiles erupted from large-scale explosive volcanic activities have a significant impact on climate and environmental changes.As an important ecological factor,the occurrence of fire is affected by vegetation cover,...; 关键词：HOLOCENE vegetation change fire history tephra shards volcanic events Northeastern China

Tephra records from abyssal sediments off western Sumatra in recent 135 ka: evidence from Core IR-GC1被引量：1: 《Acta Oceanologica Sinica》2014年第12期75-80,共6页QIU Zhongyan HAN Xiqiu JIN Xianglong WANG Yejian ZHU Jihao; The National Natural Science Foundation of China under contract Nos 41106052 91228101 and 41306056;the Fundamental Research Funds for National Nonprofit Institute Grant under contract No.JG0910; Three volcanic ash layers were identified in a deep-sea Core IR-GC1 from the north-eastern Indian Ocean, adjacent to western Indonesian arc. They were dominated by glass shards with minor mineral crystals, such as pla...; 关键词：GEOCHEMISTRY glass shards youngest Toba tuff abyssal sediment

Distribution, geochemistry and age of the Millennium eruptives of Changbaishan volcano, Northeast China - A review被引量：10: 《Frontiers of Earth Science》2014年第2期216-230,共15页Chunqing SUN Haitao YOU Jiaqi LIU Xin LI Jinliang GAO Shuangshuang CHEN; Acknowledgements The authors thank the anonymous reviewers and the editor for their helpful reviews and constructive suggestions which greatly improved the original manuscript. We also thank Drs. Z Guo, H He, X Chen and L Zhang for their help during the preparation of this manuscript. This work was supported by the National Natural Science Foundation of China （Grant Nos. 41272369, 40802038, and 41320104006）.; Large explosive volcanic eruptions generate extensive regional tephra deposits that provide favorable conditions for identifying the source of volcanoes, comparing the sedimentary strata of a region and determining th...; 关键词：Millennium eruption Changbaishan volcano tephrochronology B-Tm tephra

Comparison of Two Advection-Diffusion Methods for Tephra Transport in Volcanic Eruptions: 《Communications in Computational Physics》2011年第5期1323-1334,共12页Kae Tsunematsu Bastien Chopard Jean-Luc Falcone Costanza Bonadonna; supported by the Swiss National Science Foundation and the European Commission(COAST project EUFP6-IST-FET Contract 033664).; In order to model the dispersal of volcanic particles in the atmosphere and their deposition on the ground,one has to simulate an advection-diffusionsedimentation process on a large spatial area.Here we compare a Latt...; 关键词：Cellular automata lattice Boltzmann tephra transport ADVECTION-DIFFUSION computational efficiency

Tephra Discovered in High Resolution Peat Sediment and Its Indication to Climatic Event被引量：3: 《Journal of China University of Geosciences》2008年第2期174-183,共10页程胜高毛绪美王凤林洪业汤朱咏煊安琪; the National Natural Science Foundation of China (Nos. 40231007, 40602031);the Open Research Foundation of the State Key Laboratory of Environmental Geochemistry,Chinese Academy of Sciences (SKEGL2003010); Floating tephra was deposited together with ice core, snow layer, abyssal sediment, lake sediments, and other geological records. It is of great significance to interpret the impact on the climate change of volcanic e...; 关键词：TEPHRA PEAT geochemistry volcano eruption climate change.

Rock magnetic property of gravity core CSH1 from the northern Okinawa Trough and the effect of early diagenesis被引量：1: 《Acta Oceanologica Sinica》2007年第5期54-65,共12页GE Shulan SHI Xuefa WU Yonghua LEE Tehquei XIONG Yingqian SAITO Yoshiki; This work is supported by the Key National Science Foundation Program under contract No.40431002;the National Science Foundation Program under contract No.40574029;the State 0ceanic Administration Foundation Program for Youth under contract No.2004303.; Detailed rock magnetic investigations were undertaken at 2 -4 cm interval for the gravity core CSHI （with a length of 17.36 m） from the northern Okinawa Trough. Time-scale of the core was constructed by two characte...; 关键词：northern Okinawa Trough gravity core of CSHI rock magnetic property characteristic tephra early diagenesis

Use of environmental magnetic measurements to characterize and correlate tephra-A case study in Iceland被引量：1: 《Chinese Science Bulletin》2004年第3期286-294,共9页XIADunsheng J.Bloemendal R.C.Chiverrell J.A.Dearing JINMing; A set of environmental magnetic parameters(i.e. magnetic susceptibility, xARM, IRMs, hysteresis loops and thermomagnetic curves) has been applied to two soil sections from SE Iceland. Results demonstrate that the main...; 关键词：火山灰冰岛磁性参数相似系数欧几里德距离

Records of Toba eruptions in the South China Sea——Chemical characteristics of the glass shards from ODP 1143A被引量：4: 《Science China Earth Sciences》2001年第10期871-878,共8页梁细荣韦刚健邵磊李献华王汝成; the NSFC, the National Natural Science Foundation of China (Grant No. 49999560).; Three layers of volcanic tephra, sampled from ODP 1143 Site in the South China Sea, were observed at the mcd depth of 5.55 m, 42.66 m, and 48.25 m, and named, in this paper, layers of A, B, and C, respectively. All of...; 关键词：South China Sea ODP 1143 Site tephra shards Toba eruptions monsoon.

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