全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

1.95~0.40Ma黄土高原东南部风成沉积记录的亚洲冷干化进程

, PP. 0-0

Keywords: 黄土高原,风成沉积,赤铁矿,古气候,环境磁学

Full-Text   Cite this paper   Add to My Lib

Abstract:

黄土高原东南部地区是受东亚冬季风搬运的巨厚粉尘沉积的末端区域,亦是东亚夏季风向亚洲内陆深入的前缘区域.本研究选择这一古气候敏感区的第四纪黄土-古土壤沉积剖面作为研究载体,多重磁学参数的解译反演了风成沉积所记录的1.95~0.40Ma间粉尘源区和沉积区的古气候演变历史.结果表明,参数HIRM/(SIRM-IRM100mT)沿全剖面向上的减小趋势,可能记录了沉积物中赤铁矿矫顽力的长期趋于减小,我们认为其主要反映了间冰期沉积区和冰期粉尘源区环境的冷干化发展态势;而常被用于反映磁性矿物粒度变化的参数clf/cARM在此期间表现为长期的增大趋势,体现了磁性矿物粒度趋向于增大化,很可能反映了控制次生成壤强度的东亚夏季风同期整体变弱的趋势.虽然其他磁学参数同时记录了古气候的区域性多段变化特点,但沉积物中蕴含的亚洲古气候长期冷干化发展趋势具有全球性的对比意义.

References

[1]  3 Zhou L P, Oldfield F, Wintle A G, et al. Partly pedogenic origin of magnetic variations in Chinese loess. Nature, 1990, 346: 737-739
[2]  4 Liu T S, Ding Z L. Chinese loess and paleomonsoon. Annu Rev Earth Planet Sci, 1998, 26: 111-145
[3]  7 邓成龙, 刘青松, 潘永信, 等. 中国黄土环境磁学. 第四纪研究, 2007, 27: 193-209
[4]  8 Guo Z T, Liu T S, Fedoroff N, et al. Climate extremes in Loess of China coupled with the strength of deep-water formation in the North Atlantic. Global Planet Change, 1998, 18: 113-128
[5]  9 An Z S, Kutzbach J E, Prell W L, et al. Evolution of Asian monsoons and phased uplift of the Himalaya-Tibetan Plateau since Late Miocene times. Nature, 2001, 411: 62-66
[6]  10 Guo Z T, Ruddiman W F, Hao Q Z, et al. Onset of Asian desertification by 22 Myr ago inferred from loess deposits in China. Nature, 2002, 416: 159-163
[7]  11 Nie J S, King J W, Fang X M. Correlation between the magnetic susceptibility record of the Chinese aeolian sequences the marine benthic oxygen isotope record. Geochem Geophys Geosyst, 2008, 9: Q12026
[8]  12 强小科, 安芷生, 宋友桂, 等. 晚新生代以来中国黄土高原风成红粘土序列的发现: 亚洲内陆干旱化起源的新记录. 中国科学: 地球科学, 2010, 40: 1479-1488
[9]  13 Sun J M, Ye J, Wu W Y, et al. Late Oligocene-Miocene mid-latitude aridification and wind patterns in the Asian interior. Geology, 2010, 38: 515-518
[10]  14 Hao Q Z, Oldfield F, Bloemendal J, et al. The magnetic properties of loess and paleosol samples from the Chinese Loess Plateau spanning the last 22 million years. Palaeogeogr Palaeoclimatol Palaeoecol, 2008, 260: 389-404
[11]  15 Hao Q Z, Oldfield F, Bloemendal J, et al. The record of changing hematite and goethite accumulation over the past 22 Myr on the Chinese Loess Plateau from magnetic measurements and diffuse reflectance spectroscopy. J Geophys Res, 2009, 114: B12101
[12]  17 Deng C L, Shaw J, Liu Q S, et al. Mineral magnetic variation of the Jingbian loess/paleosol sequence in the Northern Loess Plateau of China: Implications for Quaternary development of Asian aridification and cooling. Earth Planet Sci Lett, 2006, 241: 248-259
[13]  18 Deng C L, Vidic N J, Versub K L, et al. Mineral magnetic variation of the Jiaodao Chinese loess/paleosol sequence and its bearing on long-term climatic variability. J Geophys Res, 2005, 101: B03103
[14]  25 Dunlop D J. Theory and application of the Day plot (Mrs/Ms versus Hcr/Hc): 1. Theoretical curves and tests using titanomagnetite data. J Geophys Res, 2002, 107: 2056
[15]  33 Sun J M, Lu T Y, Zhang Z Q, et al. Stepwise expansions of C4 biomass and enhanced seasonal precipitation and regional aridity during the Quaternary on the southern Chinese Loess Plateau. Quat Sci Rev, 2012, 34: 57-65
[16]  34 王喜生, 杨振宇, L?vlie R, 等. 黄土高原东南缘黄土-古土壤序列的环境磁学结果及其古气候意义. 科学通报, 2006, 51: 1575-1582
[17]  42 Liu D L, Fang X M, Song C H, et al. Stratigraphic and paleomagnetic evidence of mid-Pleistocene rapid deformation and uplift of the NE Tibetan Plateau. Tectonophysics, 2010, 486: 108-119
[18]  43 Wu B, Wu N Q. Terrestrial mollusk records from Xifeng and Luochuan L9 loess strata and their implications for paleoclimatic evolution in the Chinese Loess Plateau during marine Oxygen Isotope Stage 24-22. Clim Past, 2011, 7: 349-359
[19]  44 Ding Z L, Debryshire E, Yang S L, et al. Stepwise expansion of desert environment across northern China in the past 3.5 Ma and implications for monsoon evolution. Earth Planet Sci Lett, 2005, 237: 45-55
[20]  45 Wu F L, Fang X M, Ma Y Z, et al. Plio-Quaternary stepwise drying of Asia: Evidence from a 3-Ma pollen record from the Chinese Loess Plateau. Earth Planet Sci Lett, 2007, 257: 160-169
[21]  1 刘东生. 黄土与环境. 北京: 科学出版社, 1985
[22]  2 Kukla G, Heller F, Liu X M, et al. Pleistocene climates in China dated by magnetic susceptibility. Geology, 1988, 16: 811-814
[23]  5 Ding Z L, Derbyshire E, Yang S L, et al. Stacked 2.6-Ma grain size record from the Chinese loess based on five sections and correlation with the deep-sea d18O record. Paleocenography, 2002, 17, doi: 10.1029/2001PA000725
[24]  6 Sun Y B, Clemens S C, An Z S, et al. Astronomical timescale and palaeoclimatic implication of stacked 3.6-Myr monsoon records from the Chinese Loess Plateau. Quat Sci Rev, 2006, 25: 33-48
[25]  16 Zachos J, Pagani M, Sloan L, et al. Trends, rhythms, and aberrations in global climate 65 Ma to present. Science, 2001, 292: 686-693
[26]  19 吴翼, 朱照宇, 饶志国, 等. 蓝田玉山第四纪中后期黄土-古土壤序列环境磁学研究. 科学通报, 2010, 55: 2214-2225
[27]  20 Lisiecki L, Raymo M E. A Pliocene-Pleistocene stack of 57 globally distributed benthic d 18O records. Paleocenography, 2005, 20: PA1003
[28]  21 Thompson R, Oldfield F. Environmental Magnetism. London: Allen and Unwin, 1986. 1-227
[29]  22 Evans M E, Heller F. Environmental Magnetism: Principles and Applications of Enviromagnetics. San Diego: Academic Press, 2003. 1-299
[30]  23 Rochette P, Mathe P E, Esteban L, et al. Non-saturation of the defedct moment of goethite and fine-grained hematite up to 57 Tesla. Geophys Res Lett, 2005, 32: L22309
[31]  24 Day R, Fuller M, Schmidt V A. Hysteresis properties of titanomagnetites: Grain-size and compositional dependence. Phys Earth Planet Inter, 1977, 13: 260-267
[32]  26 Liu Q S, Roberts A P, Torrent J, et al. What do the HIRM and S-ratio really measure in environmental magnetism? Geochem Geophys Geosyst, 2007, 8: Q09011
[33]  27 Bloemendal J, Liu X M, Sun Y B, et al. An assessment of magnetic and geochemical indicators of weathering and pedogenesis at two contrasting sites on the Chinese Loess Plateau. Palaeogeogr Palaeoclimatol Palaeoecol, 2008, 257: 152-168
[34]  28 Balsam W, Ji J F, Chen J. Climatic interpretation of the Luochuan and Lingtai loess sections, China, based on changing iron oxide mineralogy and magnetic susceptibility. Earth Planet Sci Lett, 2004, 223: 335-348
[35]  29 Liu Q S, Torrent J, Maher B A, et al. Quantifying grain size distribution of pedogenic magnetic particles in Chinese loess and its significance for pedogenesis. J Geophys Res, 2005, 110: B11102
[36]  30 Evans M E, Heller F. Magnetic enhancement and palaeoclimate: A study of a loess/palaeosol couplet across the Loess Plateau of China. Geophys J Int, 1994, 117: 257-264
[37]  31 Bloemendal J, Liu X M. Rock magnetism and geochemistry of two plio-pleistocene Chinese loess-palaeosol sequences―Implications for quantitative palaeoprecipitation reconstruction. Palaeogeogr Palaeoclimatol Palaeoecol, 2005, 226: 149-166
[38]  32 Deng C L. Paleomagnetic and mineral magnetic investigation of the Baicaoyuan loess-paleosol sequence of the western Chinese Loess Plateau over the last glacial-interglacial cycle and its geological implications. Geochem Geophys Geosyst, 2008, 9: Q04034
[39]  35 Nie J S, Song Y G, King J W, et al. HIRM variations in the Chinese red-clay sequence: insights into pedogenesis in the dust source area. J Asian Earth Sci, 2010, 38: 96-104
[40]  36 陈骏, 安芷生, 刘连文, 等. 最近2.5 Ma以来黄土高原风尘化学组成的变化与亚洲内陆的化学风化. 中国科学D辑: 地球科学, 2001, 37: 136-145
[41]  37 Sun J M. Nd and Sr isotopic variations in Chinese eolian deposits during the past 8 Ma: Implications for provenance change. Earth Planet Sci Lett, 2005, 240: 454-466
[42]  38 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. Geophys J Int, 2009, 177: 913-924
[43]  39 Ao H. Mineral-magnetic signal of long-term climatic variation in Pleistocene fluvio-lacustrine sediments, Nihewan Basin (North China). J Asian Earth Sci, 2010, 39: 692-700
[44]  40 Sun J M, Liu T S. Stratigraphic evidence for the uplift of the Tibetan Plateau between ~1.1 and ~0.9 Ma ago. Quat Res, 2000, 54: 309-320
[45]  41 安芷生, 张培震, 王二七, 等. 中新世以来我国季风-干旱环境演化与青藏高原的生长. 第四纪研究, 2006, 26: 678-693

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133