MICROBIALLY INDUCED SEDIMENTARY STRUCTURES AS SEQUENCE STRATIGRAPHIC TOOLS IN SILICICLASTIC DEPOSITS
MISS have been detected in siliciclastic deposits of the Paleo-Archean age to the Pleistocene, where they record extensive ancient microbial mats covering large areas of the sea floor (Noffke et al. 2003b). This study presents facies and sequence analyses conducted on data sets from sandstone successions of the Paleo- and Meso-Archean of South Africa, the Neo-Proterozoic of Namibia, and the Ordovician of the Montagne Noire, France. The analyses show that the occurrences of MISS correlate with the turning points between regressions and transgressions. Especially for the investigation of very homogeneous lithologies, the MISS are helpful tools for the identification of sequence stratigraphic patterns.
The study is funded by the National Science Foundation, Geology and Paleontology Program, EAR-0345149.
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