东太平洋多金属结核中铁、锰元素的分形演化及其意义
The fractal evolution of iron and manganese of polymetallic nodules from the Pacific Ocean and its significance
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摘要: 运用分形理论,通过建立不同的相空间,计算了东太平洋多金属结核中的铁、锰元素的时间序列在各相空间中的关联分维,并与其在沉积物岩心中的关联分维进行了对比.通过研究发现,多金属结核中铁、锰元素和沉积物中Fe2O3及MnO在分形演化过程中均存在分维吸引子,认为沉积物中的Fe2O3和MnO可以用3个变量来描述,它们可能代表了火山、生物和陆地的三种来源,而描述结核中的铁、锰元素却需要14个变量,反映多金属结核中铁、锰元素的来源和/或赋存非常复杂,至少有14个因素在起作用,可能暗示了结核在形成过程中存在复杂的生物化学作用,为多金属结核的生物成因提供了间接的数学证据,同时也合理解释了结核生长结构所具有的自相似韵律现象.Abstract: The fractal evolution processes of geochemistrical series of the polymetallic no dule Sample 1783 are studied through computing their correlation dimensions in different embedding spaces.The results are compared with those obtained from the deep-sea sediment Core 1787.It is revealed that there are fractal attractors in the geochemistrical series of both the nodule and the sediment core,the Fe2O3 and MnO in sediment core can be descr ibed with 3 variables,which probably are volcanic,biogenic and terrestrial sources.However,it needs at least 14 variables to describe Fe and Mn in polymetallic nodules,which implies that the sources and/or existence of these elements in nodule are very complicated,at least 14 factors affecting,and complicated biochemical processes probably have taken place during the for mation of nodules.So the studies of the fractal evolution of Fe and Mn in polymetallic nodules may provide indirect mathematic evidence for the biogenic origin of nodules,and also give the rhythmic micro-structure of nodules a reaso nable explanation.
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Key words:
- Pacific Ocean /
- polymetallic nodules /
- time series of elements /
- correlation dimension /
- fractal
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HAN Xi-qiu,JIN Xiang-long,YANG Shu-feng,et al.Rhythmic growth of Pacific ferromanganese nodules and their Milankovitch climatic origin[J].Earth & Planetary Science Letters,2003,211:143-157. 韩喜球,王惠群,方银霞,等.太平洋锰结核中叠层石纹层的谱分析及其意义[J].地质学报,2001,75(4):548-553. 韩喜球,李家彪,王英,等.分形理论在太平洋多金属结核分布研究中的应用[J].海洋学报,2001,23(3):142-146. 韩喜球,方银霞,金翔龙,等.东太平洋多金属结核的叠层石包壳及其沉积环境意义[J].海洋学报,2000,22(5):73-81. 许东禹,金庆焕,梁德华.太平洋中部多金属结核及其形成环境[M].北京:地质出版社,1994.418. von STACKELBERG U,BEIERSDORF H.The formation of manganese nodules between the Clarion and Clipperton Fracture Zones southeast of Hawaii[J].Marine Geology,1991,98:411-423. KNOOP P A,OWEN R M,MORGAN C L.Regional variability in ferromanganese nodule composition:northeastem tropical Pacific Ocean[J].Marine Geology,1998,147:1-12. GRASSBERGER P,PROCACIA J.Dimension and entropies of strange attractors from a fluctuating dynamics approach[J].Physica,1984,D13:34. 洪时中.非线性时间序列分析的最新进展及其在地球科学中的应用前景[J].地球科学进展,1999,14(6):559-564. 金翔龙.东太平洋多金属结核矿带的海洋地质与矿床特征[M].北京:海洋出版社,1997.275-282. 郭世勤,孙文泓.太平洋中部多金属结核矿物学[M].北京:海洋出版社,1992.119. 韩喜球,沈华悌,陈建林,等.太平洋多金属结核的生物成因和生物-化学二元成矿机制初探[J].中国科学(D),1997,27(4):350-353. 张富生,边立曾,林承毅,等.深海锰结核中螺旋状超微化石的发现及其意义[J].高校地质学报,1995,1(1):109-116. 林承毅,边立曾,张富生,等.深海锰结核中微生物的分类及串珠状超微生物化石的研究[J].科学通报,1996,41(9):821-824. -
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