|Anisotropy of Magnetic Susceptibility Response to the Regional Stress Variation in Aeolian Red Clay Sequence
|Gao Xinbo1, 2, Qiang Xiaoke1, Zhao Hui1, 2, Chen Ting1, 2
|1. State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075;
2. University of Chinese Academy of Sciences, Beijing 100049, China
The Aeolian sediment sequences from the Chinese Loess Plateau record abundant paleoclimatic and paleoenvironmental information, while little is known about whether there were any stress effect during the sedimentary period. In terms of tracking stress variation, anisotropy of magnetic susceptibility(AMS) has some particular advantages in comparison with other traditional methods. Systematic magnetostratigraphy, rock magnetism and anisotropy of magnetic susceptibility analysis were carried out on Shuiluo Aeolian red clay profile, which is located at the western Liupan Mountain. In the field, there are not any obvious tectonic traces that can be observed, which indicates the primitive deposit, but AMS results have many distinct differences between Shuiluo aeolian red clay profile and other typical aeolian sediment sequences(loess/paleosol, red clay). These differences mainly manifest from the following aspects. Firstly, abundant magnetic ellipsoid is located in the prolate area; Secondly, the stereonet projections of the κmax and κmin principle axes of AMS ellipsoids show that the κmax axes are well grouped in an approximately east-west direction, while the κmin shows a slight girdle in an approximately north-south direction; and in addition, the Pj-T diagram shows that the magnetic ellipsoid is being transition from oblate to prolate magnetic ellipsoid. These characteristics listed above suggested that Shuiluo red clay profile had gone through a weakly stress effect, and comparing with previous research we infer that these AMS characteristics be correspondent to the incipient deformation with a weaker stress intensity and the moderate deformation with a stronger stress intensity. After further classification, comparison and using a variety of analysis methods, we find that from 14.8 Ma to 11.0 Ma, the stress state is accompanied by three stress increase and decrease alternately, and these stress effects may correspond to the stress from the northwest Tibetan plateau. In about 11.0~8.7 Ma, AMS shows a strong stress effect, and almost all AMS ellipsoid is located in the prolate magnetic ellipsoid area. At the same time, the κmin axes shows a strong girdle in an approximately north-south direction and it should be in response to the stress increasing in the local area.
Received: 16 September 2013
Published: 10 March 2014
|  Hus J J. The magnetic fabric of some loess/palaeosol deposits[J]. Physics and Chemistry of the Earth, Parts A/B/C, 2003, 28(16/19):689-699.
 Lagroix F, Banerjee S K. Palaeowind directions from the magnetic fabric of loess profiles in central Alaska[J]. Earth and Planetary Science Letters, 2002, 195(1):99-112.
 Zhu R X, Liu Q S, Jackson M J, et al. Palaeoenvironmental significance of the magnetic fabrics in Chinese Loess-Palaeosols since the last interglacial(<130 ka) [J]. Earth and Planetary Science Letters, 2004, 221(1):55-69.
 Zhang R, Kravchinsky V A, Zhu R X, et al. Palaeomonsoon route reconstruction along a W-E transect in the Chinese Loess Plateau using the anisotropy of magnetic susceptibility: Summer monsoon model[J]. Earth and Planetary Science Letters, 2010, 299(3):436-446.
 Zhang Rui, Yue Leping, Gong Hujun, et al. Anisotropy of magnetic susceptibility of eolian sediments in the Chinese Loess Plateau[J]. Quaternary Sciences, 2012, 32(4):719-726.[张睿,岳乐平,弓虎军,等.黄土高原风成沉积物磁化率各向异性研究[J]. 第四纪研究,2012,32(4):719-726.]
 Wang Luo, Liu Dongsheng, Han Jiamao, et al. Environmental magnetism of Chinese Quarternary Loess: A brief review[J]. Advances in Earth Sciences, 2000,15(3):335-341.[旺罗,刘东升,韩家懋,等.中国第四纪黄土环境磁学研究进展[J].地球科学进展,2000,15(3):335-341.]
 Liu B Z, Saito Y, Yamazaki T, et al. Palaeocurrent analysis for the Late Pleistocene—Holocene incised-valley fill of the Yangtze delta, China by using anisotropy of magnetic susceptibility data[J]. Marine Geology, 2001, 176(1):175-189.
 Piazolo S, Passchier C W. Controls on lineation development in low to medium grade shear zones: A study from the Cap de Creus peninsula, NE Spain[J]. Journal of Structural Geology, 2002, 24(1):25-44.
 Parés J M, Ben A, vander Pluijm. Evaluating magnetic lineations(AMS) in deformed rocks[J]. Tectonophysics, 2002, 350(4):283-298.
 Parés J M. How deformed are weakly deformed mudrocks? Insights from magnetic anisotropy[J]. Geological Society, London, Special Publications, 2004, 238(1):191-203.
 Lagroix F, Banerjee S K. Cryptic post-depositional reworking in aeolian sediments revealed by the anisotropy of magnetic susceptibility[J]. Earth and Planetary Science Letters, 2004, 224(3):453-459.
 Charreau J, Chen Y, Gilder S, et al. Neogene uplift of the Tian Shan Mountains observed in the magnetic record of the Jingou River section(northwest China) [J]. Tectonics, 2009, 28(2): TC2008, doi:10.1029/2007TC002137.
 Huang B C, Piper J D A, Peng S D, et al. Magnetostratigraphic study of the Kuche Depression, Tarim Basin, and Cenozoic uplift of the Tian Shan range, western China[J]. Earth and Planetary Science Letters, 2006, 251(3):346-364.
 Tang Z H, Huang B C, Dong X X, et al. Anisotropy of magnetic susceptibility of the Jingou River section: Implications for late Cenozoic uplift of the Tian Shan[J]. Geochemistry Geophysics Geosystems, 2012, 13:Q03022, doi:10.1029/2011GC003966.
 Burmeister K C, Harrison M J, Marshak S, et al. Comparison of fry strain ellipse and AMS ellipsoid trends to tectonic fabric trends in very low-strain sandstone of the appalachian fold-trust belt[J]. Journal of Structural Geology,2009,31:1 028-1 038.
 Cifelli F, Mattei M, Hirt A M, et al. The origin of tectonic fabric in“undeformed” clays: The early stages of deformation in extensional sedimentary basins[J]. Geophysical Research Letters, 2004, 31:L09604, doi: 10.1029/2004GL019609.
 Kligfield R, Lowrie W, Hirt A, et al. Effect of progressive deformation on remanent magnetization of permian redbeds from the alpes maritimes[J]. Tectonophysics, 1983, 98:59-85.
 Qiang X K, An Z S, Song Y G, et al. New eolian red clay sequence on the western Chinese Loess Plateau linked to onset of Asian desertification about 25 Ma ago[J]. Science in China(Series D), 2011, 54(1):136-144.
 Guo Z T, Rudddiman W F, Hao Q Z, et al. Onset of Asian desertification by 22 Myr ago inferred from loess deposits in China[J]. Nature, 2002, 416(6 877):159-163.
 Yan M D, VanderVoo R, Fang X M, et al. Palaeomagnetic evidence for a mid-Miocene clockwise rotation of about 25 of the Guide Basin area in NE Tibet[J]. Earth and Planetary Science Letters, 2006, 241(1):234-247.
 Liu Bing, Jin Heling, Sun Zhong, et al. Geochemical characteristics of aerolian deposits in Gonghe Basin, northeastern Qinghai-Tibetan Plateau and the indicating climatic changes[J]. Advances in Earth Science, 2012, 27(7):788-799.[刘冰,靳鹤龄,孙忠,等.青藏高原东北部共和盆地风成沉积地球化学特征及其揭示的气候变化[J].地球科学进展,2012, 27(7):788-799.]
 Jelinek V. Characterization of the magnetic fabric of rocks[J]. Tectonophysics, 1981, 79(3): T63-T67.
 Ao H, Dekkers M J, Deng C L, et al. Palaeoclimatic significance of the Xiantai fluvio-lacustrine sequence in the Nihewan Basin(North China), based on rock magnetic properties and clay mineralogy[J]. Geophysical Journal International, 2009,177(3):913-924.
 Kirschvink J. The least-squares line and plane and the analysis of palaeomagnetic data[J]. Geophysical Journal International, 1980, 62(3):699-718.
 Guo Z T, Peng S Z, Hao Q Z, et al. Origin of the Miocene-Pliocene red-earth formation at Xifeng in Northern China and implications for palaeoenvironments[J]. Palaeogeography, Palaeoclimatology, Palaeoecology, 2001, 170(1):11-26.
 Guo Z T, Sun B, Zhang Z S, et al. A major reorganization of Asian climate by the early Miocene[J]. Climate of the Past, 2008, 4(3):153-174.
 Hao Q Z, Guo Z T. Magnetostratigraphy of an early-middle Miocene loess-soil sequence in the western Loess Plateau of China[J]. Geophysical Research Letters, 2007, 34(18):L18305,doi:10.1029/2007G2031162.
 Liu Jinfeng, Guo Zhengtang, Hao Qingzhen, et al. Magnetostratigraphy of he Miziwan Miocene eolian deposits in Qin’an county(Gansu Province) [J].Quaternary Sciences,2005,25(4):503-509.[刘进峰,郭正堂,郝青振,等.甘肃秦安糜子湾剖面中新世风尘堆积的磁性地层学研究[J]. 第四纪研究,2005,25(4):503-509. ]
 Zachos J. Trends, rhythms, and aberrations in global climate 65 Ma to present[J]. Science, 2001, 292(5 517):686-693.
 Flower B P, Kennett J P. The middle Miocene climatic transition: East Antarctic ice sheet development, deep ocean circulation and global carbon cycling[J]. Palaeogeography, Palaeoclimatology, Palaeoecology, 1994, 108(3):537-555.
 Li Chaozhu, Zhang Xiao, Xu Yuanbin, et al. Reviews on the reconstructed C3/C4 variations since the late Miocene in the Chinese Loess Plateau[J]. Advances in Earth Science, 2012, 27(3):284-291.[李朝柱,张晓,许元斌,等. 黄土高原地区晚中新世以来陆地植被C3/C4 植物相对丰度演化研究进展[J].地球科学进展,2012, 27(3):284-291.]
 Kukla G, An Z S. Pleistocene climates in China dated by magnetic susceptibility[J]. Geology, 1988, 16(9):811-814.
 An Z S, Wang S M, Wu X H, et al. Eolian evidence from the Chinese Loess Plateau: The onset of the late Cenozoic Great Glaciation in the Northern Hemisphere and Qinghai-Xizang Plateau uplift forcing[J]. Science in China(Series D), 1999, 42(3):258-271.
 Ding Z L, Xiong S F, Sun J M, et al. Pedostratigraphy and palaeomagnetism of a~7.0 Ma eolian loess-red clay sequence at Lingtai, Loess Plateau, north-central China and the implications for palaeomonsoon evolution[J]. Palaeogeography, Palaeoclimatology, Palaeoecology, 1999, 152(1):49-66.
 An Z S.The history and variability of the East Asian palaeomonsoon climate[J]. Quaternary Science Reviews,2000,19(1):171-187.
 Cande S C, Kent D V. Revised calibration of the geomagnetic polarity timescale for the late Cretaceous and Cenozoic[J]. Journal of Geophys Research, 1995,100:6 093-6 095.
 Liu X M, Xu T C, Liu T S. The Chinese loess in Xifeng, II. A study of anisotropy of magnetic susceptibility of loess from Xifeng[J]. Geophysical Journal, 1988, 92(2):349-353.
 Lagroix F, Banerjee S K. The regional and temporal significance of primary aeolian magnetic fabrics preserved in Alaskan Loess[J]. Earth and Planetary Science Letters, 2004, 225(3):379-395.
 Borradaile G, Henry B. Tectonic applications of magnetic susceptibility and its anisotropy[J]. Earth Science Reviews, 1997, 42(1):49-93.
 Kanamatsu T, Herroro-Bervara E, Taira A. Magnetic fabric development in the Tertiary Accretionary complex in the Boso and Miura Peninsulas of central Japan[J]. Geophysical Research Letters,1996,23(5):471-474.
 Larrasoana J C, Pueyo E L, Parés J M. An integrated AMS, structural, palaeo-and rock-magnetic study of Eocene marine marls from the Jaca-Pamplona basin(Pyrenees, N Spain); New insights into the timing of magnetic fabric acquisition in weakly deformed mudrocks[J]. Geological Society London Special Publications,2004,238:127-143.
 Ding Z L, Sun J M, Liu T S, et al. Wind-blown origin of the Pliocene red clay formation in the central Loess Plateau, China[J]. Earth and Planetary Science Letters, 1998,161(1):135-143.
 Lu H Y, Vandenberghe J, An Z S. Aeolian origin and palaeoclimatic implications of the ‘red clay’(north China) as evidenced by grain-size distribution[J]. Journal of Quaternary Science, 2001, 16(1):89-97.
 Yang S L, Ding Z L. Comparison of particle size characteristics of the Tertiary ‘red clay’and Pleistocene loess in the Chinese Loess Plateau: Implications for origin and sources of the ‘red clay’ [J]. Sedimentology, 2004, 51(1):77-93.
 Li F J, Wu N Q, Pei Y P, et al. Wind-blown origin of Dongwan late Miocene-Pliocene dust sequence documented by land snail record in western Chinese Loess Plateau[J]. Geology, 2006, 34(5):405-408.
 Qiao Yansong, Guo Zhengtang, Hao Qingzhen, et al. Grain-size features of a Miocene loess-soil sequence at Qin’an: Implications on its origin[J]. Science in China(Series D),2006,49(7):731-738.[乔彦松, 郭正堂, 郝青振,等. 中新世黄土—古土壤序列的粒度特征及其对成因的指示意义[J]. 中国科学: D 辑,2006,36(7):646-653.]
 Liu Jinfeng, Guo Zhengtang, Qiao Yansong, et al. Eolian origin of the Miocene loess-soil sequence at Qin’an, China: Evidence of quartz morphologh and quartz grain size[J]. Chinese Sicence Bulletin,2006,51(1):117-120.[刘进峰, 郭正堂, 乔彦松,等. 秦安中新世黄土—古土壤序列石英颗粒形态特征、粒度分布及其对成因的指示意义[J].科学通报, 2005,50(24):2 806-2 809.]
 Wang E. Displacement and timing along the northern strand of the Altyn Tagh fault zone, northern Tibet [J]. Earth and Planetary Science Letters, 1997,150(1):55-64.
 Sun J M, Zhu R X, An Z S. Tectonic uplift in the northern Tibetan Plateau since 13.7 Ma ago inferred from molasse deposits along the Altyn Tagh Fault[J]. Earth and Planetary Science Letters,2005,235(3/4):641-653.
 Burchfiel B C, Zhang P Z, Wang Y P, et al. Geology of the Haiyuan fault zone, Ningxia-Hui Autonomous Region, China, and its relation to the evolution of the northeastern margin of the Tibetan Plateau[J]. Tectonics,1991,10(6):1 091-1 110.
 Meyer B, Tapponnier P, Bourjot L, et al. Crustal thickening in Gansu-Qinghai, lithospheric mantle subduction, and oblique, strike-slip controlled growth of the Tibet Plateau[J]. Geophysical Journal International, 1998, 135(1):1-47.
 Zheng Dewen, Zhang Peizhen, Wan Jinglin, et al. The late-cenozoic tectonic distortion of the north-west margin of Tibetan Plateau—The record of detrital apatite fission track dating in Linxia Basin[J]. Science in China(Series D),2003,33(Suppl.1):190-198.[郑德文,张培震,万景林,等. 青藏高原东北边缘晚新生代构造变形的时序——临夏盆地碎屑颗粒磷灰石裂变径迹记录[J].中国科学: D辑, 2003, 33(增刊1):190-198.]
 Lu Huayu, An Zhisheng, Wang Xiaoyong, et al. Geomorphologic evidence of phased uplift of the northeastern Qinghai-Tibet Plateau since 14 million years[J]. Science in China(Series D), 2004, 47(9): 822-833.[鹿化煜,安芷生,王晓勇,等. 最近14 Ma青藏高原东北缘阶段性隆升的地貌证据[J]. 中国科学: D辑,2004, 34(9): 822-833.]
 Jolivet M, Roger F, Arnaud N, et al. Exhumation history of the Altun Shan with evidence for the timing of the subduction of the Tarim block beneath the Altyn Tagh system, North Tibet Comptes Rendus de l’Academie des Sciences Series IIA[J]. Earth and Planetary Science Letters, 1999,329(10):749-755.
 Zheng H B, Powell C M, An Z S. Pliocene uplift of the northern Tibetan Plateau[J]. Geology, 2000,28(8):715-718.
 Zheng D W, Zhang P Z, Wan J L, et al. Rapid exhumation at~8 Ma on the Liupan Shan thrust fault from apatite fission-track thermochronology: Implications for growth of the northeastern Tibetan Plateau margin[J]. Earth and Planetary Science Letters,2006,248(1):198-208.
 Tian Qinjian, Ding Guoyu, Shen Xuhui. Pull-apart basins and total lateral displacement along the Haiyuan fault zone in cenozoic[J]. Earthquake Research in China, 2001,17(2):167-175.[田勤俭, 丁国瑜,申旭辉. 拉分盆地与海原断裂带新生代水平位移规模[J]. 中国地震, 2001,17(2):167-175.]
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