Probable Fungal Colonization and Carbonate Diagenesis of Neoproterozoic Stromatolites from South Gabon, Western Congo Basin - Geology and Resource Potential of the Congo Basin - page 78

Fig. 5.3 ( a ) Mouila old quarry (South of Gabon). The picture shows
the lower level of the series (10 m) belonging to the

superimposed on slightly curved stromatolites. The top of the photo-
graph is a thicker blackish chert level. Lower part of the massive
stromatolitic layer (thickness of 60 cm), Mouila old quarry, Gabon
(photo 1497/2006/ap). ( c ) Clusters of closely packed decimetric-scale
greyish domal stromatolites interstratified with regular laminar
(millimetric) thin cyanobacterial dolostones. Stratiform stromatolites
are roughly parallel to layer orientation. Some flanking stromatolites
are developed on sloped layers and are also interstratified with laminar
dolostones. The base of the figure shows blackish chert levels. Other

formation
(Schisto-Calcaire Subgroup, Neoproterozoic). The level is composed of
thin to medium-bedded homogeneous dolomudstones interstratified
with stromatolitic greyish dolostones. The first massive stromatolitic
layer occurs at 6 m from the base. The height of the front is 10 m (photo
1503/2006/ap). ( b ) Thin-bedded and laminated cyanobacterial greyish
dolomudstones. Thin irregular undulating stratiform chert layers form
slightly discontinuous blackish interstratified levels. Some ' ripples ' are

' Nsc3 '