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Stable carbon and oxygen isotope composition of calcites associated with modern freshwater cyanobacteria and algae

 

作者: Allan Pentecost,   Baruch Spiro,  

 

期刊: Geomicrobiology Journal  （Taylor Available online 1990）
卷期: Volume 8, issue 1  

页码: 17-26

 

ISSN:0149-0451

 

年代: 1990

 

DOI:10.1080/01490459009377875

 

出版商: Taylor & Francis Group

 

关键词: Stable carbon and oxygen isotopes;calcification algae;cyanobacteria;travertine;photosynthesis

 

数据来源: Taylor

 

摘要:

The composition of carbon and oxygen stable isotopes was determined for calcite associated with the freshwater cyanobacteriaHomoeothrix Crustacea, Phormidium incrustatum,andRivularia haematitesand the green algaGongrosira incrustansin a UK travertine‐depositing stream. The δ13C values ofRivulariacalcites deposited in summer were significantly higher than those deposited during winter. This was interpreted as the result of photosynthetic activity within colonies.

 

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