A Simulated Test of Algal Influence of Formation and Deposition of Phosphates

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摘要 Thispaperdealswithasimulatedtestofbiogenicmineralizationmadewithablue-greenalgaspecies,Spirulinaplatensix.Thedataintheexperimentwererecordedbyacomputerizedsurveyingsystem.Theinflu-enceofalgaeontheaccumulationofphosphorusbychangingtheirmicroenvironmenttopromotetheforma-tionanddepositionofphosphatewasstudied.TheresultsshowthatthepHvalueofculturalliquorroseupto10andtheredoxpotential(Eh)maydropby100-200mVduringthealgallogarithmicgrowthstage,andthecultrualliquorwaschangedintoamediumwithaweaklyreducingcondition.AttheendofthelogarithmicgrowthstagewhitedepositsofNa2Ca(CO3)2·5H2OandCa2Mg(PO4)2·2H2Owereformedonthefloorofculturalcontainers.Thetestpresentedawduableevidenceforthetheoryofbiogenicmineralization.
作者
机构地区 不详
出处 《地质学报:英文版》 1991年4期
出版日期 1991年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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