现代碳酸盐叠层石的重要进展及意义

张薇

Important Development and Significance of Modern Carbonate Stromatolites

Wei Zhang

图2 Hamelin Pool的叠层石[23,28] (a),(b)分别为未石化的光滑状和脓胞状生物席构成的叠层石；(c)微鞘菌（Microcoleus）；(d)石囊藻（Entophysalis）；(e)石化的脓胞状生物席构成的叠层石表面；(f)脓疱状生物席表面；(g)石化的光滑状生物席构成的叠层石表面；(h)光滑状生物席表面，(f)和(h)中箭头G表示蓝细菌微生物群落组成的绿色层，箭头P代表紫色硫细菌组成的粉色层，箭头B代表硫酸盐还原细菌组成的黑色层；(i)石化的胶粒状生物席构成的叠层石表面；(j)叠层石的穹状构造

Fig.2 Stromatolites from Hamelin Pool[23,28] (a),(b)They are stromatolites composed of smooth and pustular mats which are non-lithifying;(c)Microcoleus; (d)Entophysalis;(e)The surface of stromatolites composed of lithified pustular mats; (f) Surface of pustular mats; (g)The surface of stromatolites composed of lithified smooth mats; (h)Surface of smooth mats, arrow G represents the green layer composed of cyanobacteria microbial community, arrow P represents the pink layer composed of purple sulfur bacteria, and arrow B represents the black layer composed of sulfate reducing bacteria;(i)The surface of stromatolites composed of lithified colloform mats; (j)A domed structure of stromatolites