Surface:
Lyngbya sp. occupied 85% of mats surface, forming entengled net of the robustly enveloped filaments, sometimes forming continues (solid) coverage.
Cross section:
1 layer. Surface layer is thin, ~ 0.1 mm, composed mostly from Lyngbya sp.
2 layer. First white layer, composed mostly from Schizothrix sp.,  Coleofasciculus chthonoplastes, Trichocoleus sp. Lyngbya sp. is rare inhere. Thickness of the layer is 0.5 mm.
3 layer. Dark blue-green layer. Thickness of the layer is ~ 0.2 mm.
4 layer. White layer. (Similar to layer 2), but propably without Lyngbya sp. Thickness of the layer is 0.25 mm.
5 layer. Blue-green layer is vary faint, maybe contains of dead filaments of cyanos. Thickness of the layer is 0.1 mm.
6 layer. White layer (Similar to layer 4) contains of sediments and emply envelopes, perhaps. Thickness of the layer is 0.2 mm.
7 layer. Dark-green layer. Thickness of the layer is 0.2 mm.
8 layer. Layer of sediments and ditritus. Thickness of the layer is 4 mm.
TOTAL THICKNESS OF THE MAT IS ~ 1.2 mm.

Note: Supposedly Lyngbya sp. may seldom occur through all layers except layer 8. In the longitudinal axis mat is not continuous (discrete).
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Species abundance depending of layer:

Species					Surface		Second layer		2mm deep
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1. Lyngbya sp.				60%		rarely	
2. Schizothrix sp.			20%		20%			20%
3. Leibleinia sp.			10%					rarely
4. Johannesbaptistia sp.		rarely					
5. Schizothrix helva			10%		20%
6. Gloeocapsopsis sp.			rarely		rarely			
7. Porphyrosiphon sp.			rarely		rarely
8. Coleofasciculus chthonoplastes			20%			20%
9. Chroococcus sp.					rarely			rarely		
10.Trichocoleus sp.					20%			20%
11.Spirulina sp.					rarely
12.Symplocastrum sp.					10%			20%			
13.Synechococcus sp.								rarely

TOTAL					7		10			7