The Proceedings of the Eighth International Conference on Creationism (2018)

Coulson ◀ Stromatolites ▶ 2018 ICC 378 Figure 4 . Macro and meso-scale features of bed 11. Abbreviations: S = stromatolite; IS = interspace; TC = Thrombolitic Core. A. Large, round microbialites are tightly packed with respect to each other, a feature that is common throughout the entire bed. B. An in-situ microbialite that was pulled directly from its growth position in bed 11 (see figure 5D). Notice the concave-down laminations middle to bottom, as well as thrombolitic core, middle to top. These thrombolitic cores contain mini-stromatolites (the black square in B is expanded in C). D. An in-situ microbialite that was also pulled directly from its growth position in bed 11 (see figure 5D). The microbialite was taken back to the lab and cut longitudinally through the medial plane. Again, notice concave-down laminations as well as the limestone clast upon which the form grew. Cm scale at bottom of image. E. A similar microbialite as in D, but this time cut transversly, revealing the maze-like structure of the mini-stromatolites. F. The interpspace between these microbialites is full of trilobite hash, mollusks, and limestone intraclasts. Figure modified and used with permission from SEPM, Coulson and Brand (2016).