Please wait a minute...
img

Wechat

Adv search
JOURNAL OF DESERT RESEARCH  2012, Vol. 32 Issue (6): 1565-1575    DOI:
Paleoclimate and Environment Evolution     
Magnetic Properties and Palaeoclimatic Implication of the Loess Deposits in Tacheng, Northwest China
LI Guan-hua1, XIA Dun-sheng1,2, ZHAO Shuang1, LIU Xian-bin1, JIA Jia1, WEI Hai-tao1
1.Key laboratory of West Chinas Environmental Systems, Lanzhou University, Lanzhou 730000, China;
2.Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
Download:  PDF (5414KB) 
Export:  BibTeX | EndNote (RIS)      
Abstract  

The environmental magnetic parameters have been widely used in the paleoclimate studies for decades. It was reported that the magnetic susceptibility of loess and paleosol sequences were positively correlated with the pedogenic intensity in the Chinese Loess Plateau and Central Europe. However, there was a negative correlation between magnetic susceptibility and pedogenic intensity observed in Alaskan and Siberian loess deposits. The magnetic properties of the loess/paleosol sequences are complex in westerly region of Xinjiang, China. Based on the fundamental of environmental magnetism, we conducted a systematic study on the loess deposits in Tacheng District, Xinjiang Uygur Autonomous Region, China. Results indicate that the ferrimagnetic minerals such as magnetite and maghemite hold a dominant position within the magnetic minerals of the investigation profile, meanwhile, a certain amount of antiferromagnetic minerals and superparamagnetic minerals are also discovered. The multidomain(MD) and pseudo-single domain(PSD) are the main magnetic grain size. The further analysis shows that the pedogenesis may have some effects on the contents of the single domain(SD) magnetic grains but it doesn't obviously contribute to the increase of ultrafine-superparamagnetic domain particles. Moreover, the relatively warm and dry conditions during the pedogenic period are probably responsible for the decrease of the ferrimagnetic minerals and the calcium carbonate deposition in the palaeosol units. Consequently, the distribution of magnetic minerals concentration might represent the change of relative humidity condition. To some extent, the grain size and magnetic parameters of the investigative profile contain some information about the regional paleoclimate change of the study area.

Key words:  loess      relative humidity      magnetic minerals      grain size     
Received:  13 December 2011      Published:  19 February 2012
ZTFLH:  P539.3  

Cite this article: 

LI Guan-hua1, XIA Dun-sheng1,2, ZHAO Shuang1, LIU Xian-bin1, JIA Jia1, WEI Hai-tao1. Magnetic Properties and Palaeoclimatic Implication of the Loess Deposits in Tacheng, Northwest China. JOURNAL OF DESERT RESEARCH, 2012, 32(6): 1565-1575.

URL: 

http://www.desert.ac.cn/EN/     OR     http://www.desert.ac.cn/EN/Y2012/V32/I6/1565

[1]刘东生.黄土与环境[M].北京:科学出版社,1985:1-240.

[2]Heller F,Liu T S.Magnetism of Chinese loess deposits[J].Geophysical Journal of the Royal Astronomical Society,1984,77(1):125-141.

[3]Kukla G.Loess stratigraphy in central China[J].Quaternary Science Review,1987,6(3-4):191-207,209-219.

[4]朱日祥,Kazansky A,Matasova G,等.西伯利亚南部黄土沉积物的磁学性质[J].科学通报,2000,45(11):1200-1205.

[5]Begét J,Hawkins D.Influence of orbital parameters on Pleistocene loess deposition in central Alaska[J].Nature,1989,337:151-153.

[6]Kukla G,An Z S.Loess stratigraphy in central China[J].Palaeogeography,Palaeoclimatology,Palaeoecology,1989,72:203-225.

[7]Begét J,Stone D,Hawkins D. Paleoclimatic forcing of magnetic susceptibility variations in Alaskan loess during the late Quaternary[J].Geology,1990,18(1):40-43.

[8]贾蓉芬,颜备战,李荣森,等.陕西段家坡黄土剖面中趋磁细菌特征与环境意义[J].中国科学(D辑),1996,26(5):411-416.

[9]Zhou L P,Oldfield F,Wintle A G,et al.Partly pedogenic origin of magnetic variations in Chinese loess[J].Nature,1990,346:737-739.

[10]Maher B A,Thompson R,Zhou L P.Spatial and temporal reconstructions of changes in the Asian palaeomonsoon: A new mineral magnetic approach[J].Earth and Planetary Science Letters,1994,125(1-4):461-471.

[11]刘秀铭,刘东生,Heller F,等.黄土频率磁化率与古气候的冷暖变换[J].第四纪研究,1990(1):42-50.

[12]李志文,李保生,孙丽,等.影响中国黄土磁化率差异的多因素评述[J].中国沙漠,2008,28(2):231-237.

[13]陈一萌,曾宪光.中国西北与华北地区末次冰期黄土气候记录的对比研究[J].中国沙漠,2009,29(6):1075-1080.

[14]何忠,黄春长,周杰,等.淮河上游全新世黄土及其沉积动力系统研究[J].中国沙漠,2010,30(4):816-823.

[15]刘庆生,刘振东,刘青松,等.一个变泥质岩包体样品的系统热磁试验及其矿物学意义[J].地球物理学报,2005,48(4):876-881.

[16]张鸿义,王焕章.新疆黄土中的新发现[J].科学通报,1984(8):512-514.

[17]赵兴有,买买提依敏,刘嘉麒,等.晚更新世中期以来克里雅河流域黄土沉积特征与环境演化[J].干旱区地理,1995,18(1):51-59.

[18]赵兴有.克里雅河流域黄土的矿物组合特征及环境意义[J].干旱区地理,1997,20(3):62-68.

[19]方小敏,吕连清,杨胜利,等.昆仑山黄土与中国西部沙漠发育和高原隆升[J].中国科学(D辑),2001,31(3):177-184.

[20]叶玮.新疆西风区黄土与古土壤磁化率变化特点[J].中国沙漠,2001,21(4):380-386.

[21]史正涛,董铭,方小敏.伊犁盆地晚更新世黄土-古土壤磁化率特征[J].兰州大学学报(自然科学版),2007,43(2):7-10.

[22]夏敦胜,陈发虎,马剑英,等.新疆伊犁地区典型黄土磁学特征及其环境意义初探[J].第四纪研究,2010,30(5):902-910.

[23]宋友桂,史正涛,方小敏,等.伊犁黄土的磁学性质及其与黄土高原对比[J].中国科学(D辑),2010,40(1):61-72.

[24]Jia J,Xia D S,Wei H T,et al.A magnetic investigation of a loess/paleosol sequences record in lli area[J].Earth Science Frontier,2010,4(3):259-268.

[25]贾佳,刘现彬,夏敦胜,等.坎苏剖面记录的西天山地区黄土磁学性质及其控制因素初探[J].干旱区地理,2011,34(1):124-132.

[26]张洪芬,王劲松,黄斌,等.西北西风区与东部季风区年气温变化特征对比分析[J].中国沙漠,2009,29(6):1203-1206.

[27]李江风.新疆气候[M].北京:气象出版社,1991:17-18.

[28]叶玮.新疆西风区黄土沉积特征与古气候[M].北京:海洋出版社,2001:22-33.

[29]张家宝,袁玉江.试论新疆气候对水资源的影响[J].自然资源学报,2002,17(1):28-34.

[30]鄂崇毅.新疆西风区粉尘沉积研究[D].兰州:兰州大学博士学位论文,2009:20-100.

[31]Thompson R,Oldfield F.Environmental magnetism[M].London:Allen Unwin,1986:1-120.

[32]邓成龙,刘青松,潘永信,等.中国黄土环境磁学[J].第四纪研究,2007,27(2):193-209.

[33]Xia D S,Ma J Y,Wang G,et al.Environmental magnetism concepts and their applications to environmental studies in arid regions,Northwest China[J].Earth Science Frontiers,2006,13(3):168-179.

[34]Oezdemir O,Dunlop D J.Thermoremanence and Néel temperature of goethite[J].Geophysical Research Letters,1996,23(9):921-924.

[35]安芷生,吴锡浩,卢演俦,等.最近2万年中国古环境变迁初步研究[C]//黄土、第四纪地质、全球变化(2).北京:科学出版社,1990:1-26.

[36]Day R,Fuller M,Schmidt V A.Hysteresis properties of titanomagnetites:Grain size and compositional dependence[J].Physics of the Earth and Planetary Interiors,1977,13(4):260-267.

[37]An Z S,Kukla G J,Proter S C,et al.Magnetic susceptibility evidence of monsoon variation on the Loess Plateau of central China during the last 130 000 years[J].Quaternary Research,1991,36(1):29-36.

[38]Beger J E.Continuous late Quaternary proxy climate records from loess in Beringia[J].Qaternary Science Reviews,2001,20(1-3):499-507.

[39]刘秀铭,刘东生,夏敦胜,等.中国与西伯利亚黄土磁化率古气候记录-氧化和还原条件下的两种成土模式分析[J].中国科学,2007,37(10):1382-1391.

[40]刘秀铭,刘东生,Heller F,等.中国黄土磁颗粒分析及其古气候意义[J].中国科学(B辑),1991(6):639-644.

[41]王丽,夏敦胜,余晔,等.北疆地区城市大气降尘磁学特征及其环境意义[J].中国沙漠,2010,30(3):699-705.

[42]吕厚远,韩家懋,吴乃琴,等.中国现代土壤磁化率分析及其古气候意义[J].中国科学(B辑),1994,24(12):1290-1297.

[43]陈天虎,Xu H F,季峻峰,等.黄土中强磁性矿物透射电子显微镜观察和成因分析[J].科学通报,2003,48(17):1883-1889.

[44]Chen T H,Xie Q Q,Xu H F,et al.Characteristics and formation mechanism of pedogenic hematite in Quaternary Chinese loess and paleosols[J].Catena,2010,81(3):217-225.

[45]邓少福,杨太保,秦宏毅,等.新疆塔城黄土-古土壤磁化率特征及其影响因素[J].中国沙漠,2011,31(4):848-854.

[46]韩家懋,姜文英,刘东生,等.黄土碳酸盐中古气候变化的同位素记录[J].中国科学(D辑),1996,26(5):399-404.

[47]Pye K.Aeolian Dust And Dust Deposits[M].London and Orlando:Academic Press,1987:1-256.

[48]汪海斌,陈发虎,张家武.黄土高原西部地区黄土粒度的环境指示意义[J].中国沙漠,2002,22(1):21-26.

[49]陈隆勋.东亚季风[M].北京:气象出版社,1991:1-262.

No Suggested Reading articles found!