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...
地理科学  2010 

重庆新崖洞4.5ka以来气候变化的石笋微量元素记录及环境意义

, PP. 910-915

Keywords: 石笋,气候变化,微量元素,重庆地区

Full-Text   Cite this paper   Add to My Lib

Abstract:

根据重庆新崖洞石笋XY6已有的碳氧同位素成果,进一步探讨微量元素指标(Mg/Ca,Sr/Ca,Ba/Ca及Mg/Sr)的气候及环境意义。认为Mg/Ca比值可以作为古降水的气候指标,极好地记录这4500a来的气候干湿变化,尤其对4000aB.P.左右的季风降水减少有明显的响应。此外,Mg/Ca与碳氧同位素记录反映的气候信息也基本一致。Sr/Ca和Ba/Ca与Mg/Ca比值的变化也有相似性,但其作为气候指标的稳定性较差,易受到地表植被、土壤微生物活动等众多因素的干扰。

References

[1]  Wang Y J,Cheng H,Edwards R L,et al.Millennial-and orbital-scale changes in the East Asian monsoon over the past 224 000 years[J].Nature,2008,451:1090-1093.
[2]  Yuan D X,Cheng H,Edwards R L,et al.Timing, duration,and transitions of the last interglacial Asian monsoon[J].Science,2004,304:575-578.
[3]  王建力,王 丽,何 潇,等.重庆地区末次冰期气候变化的石笋记录研究[J].地理科学,2006,26(5):580~585.
[4]  李明霞,汪永进,邱庆伦.中全新世7~6 ka东亚季风气候的高分辨率石笋记录[J].地理科学,2007,27(4):519~524.
[5]  Brecker W S.Radiocarbon measurement and annual rings in cave fo rmations[J].Nature,1960,185:93-94.
[6]  谭 明,秦小光,沈凛梅,等.中国洞穴碳酸盐双重光性显微旋回及其意义[J].科学通报,1999,44(6):646~648.
[7]  刘东生,谭 明,秦小光,等.洞穴碳酸钙微层理在中国的首次发现及其对全球变化研究的意义[J].第四纪研究,1997,17(1):41~51.
[8]  Ian J Fairchild a,Pauline C Treble.Trace elements in speleothems as recorders of environmental change[J].Quaternary Science Reviews,2009,28:449-468.
[9]  Andrea Borsato,Silvia Frisia,Ian J Fairchild,et al.Trace element istribution in annual stalagmite laminaemapped by micrometer-resolution X-ray fluorescence: Implications for incorporation of environmentally significant species[J].Geochimica et Cosmochimica Acta, 2007,71:1494-1512.
[10]  邵晓华,汪永进,孔兴功,等.南京葫芦洞石笋生长速率及其气候意义探讨[J].地理科学,2003,23(3):304~309.
[11]  何 潇,王建力,李 清,等.重庆地区石笋沉积速率与古气候意义初探[J].中国岩溶,2007,26(3):196~201.
[12]  林玉石,张美良,覃嘉铭.洞穴石笋沉积速率研究中值得注意的几个问题[J].中国岩溶,2001,20(2):131~136.
[13]  Goede A,Vogel J C.Trace element variation and dating of a L ate P leistocene Tasmanian speleo them [J].Palaeo-geography Palaeoclimatology Palaeoecology,1991,88:121-131.
[14]  Gascoyne M.Trace-element partition coefficients in the calcite-water system and their paleoclimatic significance in cave studies[J].Journal of Hydrology,1983,61(1-3):213-222.
[15]  马志邦,李红春,夏 明,等.距今3 ka来京东地区的古温度变化:石笋Mg/Sr记录[J].科学通报,2002,47(23):1829~1834.
[16]  Hu C Y,Henderson G M,Huang J H,et al.Quantification of Holocene Asian monsoon rainfall from spatially separated cave record[J].Earth Planet Sci Lett,2008,266:221-232.
[17]  李廷勇,李红春,袁道先,等.重庆新崖洞XY6石笋高分辨率δ18O、δ13C记录的4.5 ka以来气候变化[J].中国岩溶,2006,25(2):95~100.
[18]  李 清,王建力,李红春,等.重庆地区石笋记录中Mg/Ca比值及古气候意义[J].中国岩溶,2008,27(2):145~150.
[19]  Wang Y J,Cheng H,Edwards R L,et al.A High-solution absolute-dated late Pleistocene Monsoon record from Hulu cave[J].China Science,2001,294:2345-2348.
[20]  吴江滢,邵晓华,汪永进.南京年纹层石笋δ18O记录的冰期气候事件特征[J].地理科学,2007,27(1):75~80.
[21]  Hu C Y,Henderson G M,Huang J H,et al.Quantification of Holocene Asian monsoon rainfall from spatially separated cave record[J].Earth Planet Sci Lett,2008,266:221-232.
[22]  Kathleen R.Johnson,Chaoyong Hu,Nick S,et al.Henderson.Seasonal trace-element and stable-isotope variations in a Chinese speleothem:The potential for high-resolution paleomonsoon reconstruction[J].Earth and Planetary Science Letters 2006,244:394-407.
[23]  李 彬,袁道先,林玉石,等.洞穴此生化学沉积物中Mg、Sr、Ca及其比值的环境指代意义[J].中国岩溶,2000,19(2):115~122.
[24]  Roberts M S,Smart P L,Baker A.Annual trace element variations in a Holocene speleothem[J].Earth and Planetary Science Letters,1998,154:237-246.
[25]  陈伟海,朱德浩,朱学稳,等.奉节天坑地缝岩溶景观及世界自然遗产价值研究[M].北京:地质出版社(第一版).2003:1~13.
[26]  吴江滢.晚冰期南京石笋十年际气候序列重建.南京大学博士学位论文,2003.
[27]  汪卫国,冯兆东,李心清,等.蒙古北部Gun Nuur 湖记录的全新世气候突发事件[J].科学通报,2004,49(1):27~33.
[28]  沈 吉,刘兴起,R M atsumo to,等.晚冰期以来青海湖沉积物多指标高分辨率的古气候演化[J].中国科学(D辑),2004,34(6):582~589.
[29]  吴中海,赵希涛,吴珍汉,等.西藏纳木错及邻区全新世气候与环境变化的地质记录[J].冰川冻土,2004,26(3):275~283.
[30]  邵晓华,汪永进,程 海,等.全新世季风气候演化与干旱事件的湖北神农架石笋记录[J].科学通报,2006,51(1):80~86.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133