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Ultra-microbes are the minerogenetic constructors of oceanic polymetallic nodules

Chinese Science Bulletin 1997年第8期42卷 617-624页

作者： chen jianlin, zhang fusheng and bian lizeng1 second institute of oceanography, state oceanic administration, hangzhou 310012. china 2 Center for Materials Analysis, Nanjing University, Nanjing 210093, china 3. Department of Earth Sciences, Nanjing University, Nanjing 210093, china second institute of oceanography State Oceanic Administration Hangzhou China Centu for Materials Analysis Nanjing University Nanjing China Department of Earth Sciences Nanjing University Nanjing China

Polymetallic nodules (mangnese nodules) are a typical kind of manganese oncolites The distribution of smooth sur-face and knobbly manganese nodules is closely related to the geological background of the mine field. A systematic study on their inner laminae structure and features suggests that they are the products of millions of years reproduction and accumulation of the recently found Miniactinomyces chinensis and Spirisophaerospora pacijica .

关键词： oceanic manganese nodule stromatolite ultra-microbe biolite.

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Pelagic Manganese Nodules--A New Type of Oncolites

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Acta Geologica Sinica(English Edition) 1997年第1期71卷 43-48,115-116页

作者： bian lizeng Lin chengyi zhang fusheng Du De’an chen jianlin and Shen Huadi Department of Earth Sciences Centre for Materiale Analysis,Nanjing University,Jiangsu second institute of oceanography, state oceanic administration,hangzhou, Zhejiang Liu Xinzhu

Pelagic manganese nodules from the East Pacific Ocean have been studied using polarizing,scanning electron and transmission electron microscopes. It has been revealed that the manganesenodules are composed of cores and stromatolite coatings. The structures and textures of thesenodules are peculiar to oncolite. Consequently, the pelagic manganese nodules are manganeseoncolites. Based on the stromatolites in the coatings, the manganese oncolites from the East Paci-fic Ocean can be divided into two types. One is smooth on surface and dense inside. Its coatingsare composed mainly of Minima. The other has a knobby surface and is loose internally. Itscoatings consist mainly of Admirabilis. The TEM investigation has also revealed that the con-structors of the manganese oncolites are ultra-microbes. The Minima is constructed byMiniactinomyces chinensis sp. nov. and the Admirabilis is built by Spirisosphaerospora pacifica ***.

关键词： pelagic manganese nodule oncolite stromatolite ultra-microfossil

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