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湖泊科学  2001 

湖相介形类壳体地球化学在环境变化研究中的应用与进展

DOI: 10.18307/20010413

Keywords: 湖泊,介形类,稳定同位素,微量元素,环境变化

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Abstract:

双壳微体甲壳类动物介形虫,广泛分布于各类湖泊体系中,其碳酸盐壳化石通常在湖泊沉积物中保存完好.介形类的古生态学,尤其是介壳的地球化学在环境变化研究中,近年来得到越来越广泛的应用.介壳的氧同位素组成由形成壳体时湖水的同位素组成和温度决定,可以反映由蒸发和降水的变化所引起的湖水水化学以及与之关联的气候变化情况.一般而言,低δ18O反映了温暖潮湿的气候;高δ18O反映了寒冷干燥的气候.碳同位素可以反映总溶解无机碳的组成以及影响其组成的诸因素的变化,多数情况下可以反映湖泊古生产力的大小及变化.介壳中Mg和Sr的含量,往往与其宿生水体的盐度和温度呈一定的函数关系,据此可以恢复湖泊的温度,尤其是盐度的变化.为了满足高分辨率环境变化,特别是定量研究的要求,必须充分了解介形类各个种属的生命历史和生态消长的过程;通过定期收集野外介壳和水样进行化学分析,了解湖水水化学和温度对介壳稳定同位素和微量元素组成的影响;详细了解湖泊湖沼学,包括湖水的同位素组成和M/Ca(M指微量元素Mg、Sr等)与盐度的关系以及它们随空间和季节变化的特征;开展实验室养殖培养实验,测定单个种属介壳与水体的氧同位素分馏系数,建立微量元素吸收的生理效应

References

[1]  Carbonel P, Colin J-P, Danielopol D L, et al. Paleoecology of limnic ostracodes: a review of some major topics. Paleogeogr Paleoclimat Palaeoecol, 1988, 62: 413 - 461.
[2]  Hodell D A, Curtis J H, Jones G A, et al. Reconstruction of Caribbean climate change over the past 10,500 years. Nature,1991, 352:790 - 793.
[3]  Chivas A R, De Deckker P, Shelley J M G. Magnesium content of non-marine ostracod shells: a new palaeosalinometer and palaeothermometer. Paleogeogr Palaeoclim Palaeoecol, 1986, 54: 43 - 61.
[4]  Engstrom D R, Nelson S R. Paleosalinity from trace metals in fossil ostracodes compared with observational records at Devil\'s Lake, North Dakota, USA. Paleogeogr Palaeoclim Palaeoecol, 1991, 83:295 - 312.
[5]  张彭熹,张保珍,扬文博.青海湖冰后期以来古气候波动模式的研究.第四纪研究,1989,1:66-77.
[6]  沈吉,王苏民,RMatsumoto等.内蒙古岱海古盐度定量复原初探.科学通报,2000,45(17):1885-1889.
[7]  Xia J, EIto, Engstrom D R. Geochemistry of ostracode calcite: Part 1. An experimental determination of isotope fractionation. Geochim Cosmochim Acta, 1997, 61(20):377-382.
[8]  叶得泉,徐静慧.松辽盆地白垩纪介形类地层学特征.微体古生物学报,1994,11(4):429-438.
[9]  Herczeg A L, Fairbanks R G. Anomalous carbon isotope fractionation between atmospheric CO2 and dis-solved inorganic carbon induced by intense photosynthesis. Geochim Cosmochim Acta, 1987, 51:895- 899.
[10]  Romanek C S, Grossman E L, Morse J W. Carbon isotope fraetionation in synthetic aragonite and calcite: effects of temperature and precipitation rate, Geochim Cosmochim Acta, 1992, 56:419- 430.
[11]  更多...
[12]  Chivas A R, De Deckker P, Shelly J M G. Magnesium and Strontium in non-marine ostracod shells as indicators of palaeosalinity and palaeotemperature. Hydrobiologia, 1986, 143:135- 142.
[13]  Haskell B J, Engtrom D R, Sherilyn C. Late Quaternary palaeohydrology in the North American Great Plains inferred from the geochemistry of endogenic carbonate and fossil ostracodes from Devils Lake, North Dakota, USA. Paleogeogr Palaeoclim Palaeoecol, 1996, 124:179-193.
[14]  Holmes J A, Street-Perrott F A, Allen M J, et al. Holocene palaeolimnology of Kajemarum Oasis, North Nigeria: an isotopic study of ostracodes, authigenic carbonate and organic carbon. Geol Soc, 1997, 154:311 - 319.
[15]  Tardy Y C, Cheverry, Fritz B. Néoformation d\' une argile magnésienne dans les dépressions inter dunaires dulac Tchad. Application aux domaines de stabilitédes phyllosilicates alumineux, magnésiens et ferrifères. C R Acad Sc Paris, 1974, 278:1999- 2002.
[16]  Verizer J. Trace elements and isotopes in sedimentary carbonates. In: Reeder R J, ed. Carbonates: Mineralogy and Chemistry. Reviews in Mineralogy, Washington DC, 1983. 265 - 300.
[17]  Anadón P, JuliāR & Utrilla R. Palaeoenviromental reconstruction from faunal assemblages and ostracode shell geochemistry of a Pleistocene lacustrine sequence, Baza basin, SE Spain. Paleogeogr Palaeoclim Palaeoecol, 1994, 111:191-205.
[18]  Lister G S, Chen K Z, Yu J Q, et al. Lake Qinghai, China: closed-basin lake levels and the oxygen isotope record for Ostracoda since the lastest Pleistocene. Paleogeogr Palaeoclim Palaeoecol, 1991, 84:141 - 162.
[19]  张彭熹,张保珍,钱桂敏等.青海湖全新世以来古环境参数的研究.第四纪研究,1994,3:225-238.
[20]  曹建廷,沈吉,王苏民等.内蒙古岱海地区小冰期气候演化的地球化学记录.地球化学,2001,30(3):231-235.
[21]  Von Grafenstein U, Erlerkeuser H, Trimbom P. Oxygen and carbon isotope in modem fresh-water ostracod valves: assessing vital offsets and autecological effects of interest for palaeoclimate studies. Palaeogeogr Palaeoclim Palaeoecol, 1999, 148: 133-152.
[22]  Xia J, D R Engstrom, Ito E. Geochemistry of ostracode calcite: Part 2. The effects of water chemistry and seasonal temperature variation on Candona rawsoni. Geochim Cosmochim Acta, 1997, 61(2) :383 - 391.
[23]  Bridgwater N D, Holmes J A, O\'Hara S L. Complex controls on the trace-element chemistry of non-marine ostracods: an example from Lake Pàtzcuaro, central Mexico. Palaeogeogr Palaeoclim Palaeoecol, 1999, 148:117- 131.
[24]  De Deckker P, ForesterRM. The use of ostracods to reconstruct codtinental palaeoenvironmental records. In: De Deckker P,Colin J-P, & Peypouquent J-P, eds. Ostracoda in the earth sciences. Amsterdam: Elsevier, 1988. 175 - 199.
[25]  Schwalb A, Stephen J B, Kelts K. Holocene environments from stable isotope stratigraphy of ostracods and authigenic carbonate in Chilean Altiplano Lakes. Palaeogeogr Palaeoclim Palaeocol, 1999, 148:153- 168.
[26]  McKenzie J A. Carbon isotopes and productivity in the lacustrine and marine environment. In: Stumm W, ed. Chemical Process in Lakes. Wiley: New York, 1985. 99 - 118.
[27]  ColeJ J, CaragoNF, KlingGW, etal. Carbon clioxide supersaturation in the surface waters of lakes. Science, 1994, 265:1568 - 1570.

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