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CSL'S Field Seminars

The Comparative Sedimentology Laboratory offers field seminars to introduce geologists and geophysicists to the facies and lateral changes in the modern and ancient carbonates. The seminars to some of the classic field locations illustrate in an unique way the size, facies, and heterogeneities of the carbonate environments, which are potential hydrocarbon reservoirs. The observed facies relationships and stratigraphic successions are used to critically evaluate the concepts of cyclostratigraphy for reservoir characterization and to compare depositional and diagenetic aspects of the various environments with subsurface examples.

Current Seminar Offerings


Facies Successions on Great Bahama Bank - Implications for Exploration and Reservoir Characterization

Was July 25 - 30, 2015

This seminar explores the vertical and lateral facies successions and heterogeneities of Great Bahama Bank. The seismic and core workshop on day 1 illustrates the architecture of the prograding western margin of Great Bahama Bank. Cores across the platform margin provide a unique opportunity to examine the sequence stratigraphic distribution of facies and diagenetic modification in platform carbonate reservoirs. Log and laboratory data from these cores provide insights into porosity/velocity relationships and permeability distribution in platform carbonates.

As modern analogs, the facies belts on Great Bahama Bank display the depositional heterogeneities that may occur in ancient hydrocarbon reservoirs. We explore the spatial heterogeneity within a carbonate platform, a facies belt or individual facies bodies, while simultaneously exploring the fundamental controlling processes. In particular, sedimentary structures, dimensions and lateral variability of classic reservoir facies are examined during the seminar. Field stops include the leeward platform margin (Cat Cay Ooid Shoal), the platform interior, the tidal flats of Andros, the ooid shoals of Joulters Cay, patch reefs, and the Andros Island barrier reef. Pleistocene outcrops on Bahamian islands show how these facies are preserved in the ancient rock record.



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FieldSemi...2015.pdf Description

Ooid Sands and Microbialites Along the Exumas Margin - Depositional Models, Stratigraphic Framework and Reservoirs

Was July 31 - August 5, 2015

The seminar will illustrate the relationships and dimensions in an ooid-dominated, high-energy platform margin as well as the relationship of stromatolites and associated facies. This windward margin is a complicated arrangement of sedimentary bodies that are produced by physical and biological processes and influenced by Pleistocene and Holocene islands. In particular, we will focus on various sub-environments with differing grain-composition and different environments of stromatolite occurrence with various growth forms. Pleistocene island outcrops will illustrate the influence of meteoric diagenesis and also serve as overview points for viewing the dimensions of the various environments, further illustrating the heterogeneity of the margin. 

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