Copyright by Nysha Chaderton 2009 - The University of Texas at ...

Chapter 2: The Anatomy of a Coarse Grained Turbidite, Scotland
Formation, Barbados West Indies
If production in the BAP hydrocarbon province is to continue in the future, and
perhaps increase, then there is an imperative need to improve understanding of the BAP
hydrocarbon system and its elements. One of the most important elements of the system
is the primary reservoir unit; the Scotland Formation.
The primary producing oil field on the island of Barbados, the Woodbourne
oilfield is located in the south of the island and produces from the Eocene-Oligocene age
interbedded sandstone and shale succession of the Scotland Formation. Outcrops of the
Scotland Formation and other Tertiary units are exposed where the island’s Pleistocene
limestone cap has been eroded in northeastern Barbados (Figure 2.1, 2.2).
DATA
Twenty-seven measured sections were constructed for seven different outcrop
locations across the island of Barbados (Figure 2.3, 2.4). Outcrops were also documented
with photomosaics and gamma scans. Rock samples were selected for petrographic
analysis and diagenetic history. Each outcrop location varied in terms of the extent of
rock exposure, type and intensity of structuring, accessibility and weathering conditions.
The number of sections measured at each locality varied from one, at Inner Turners Hall
Ridge (ITR) to six at Chalky Mount Ridge (CMR). Photomosaics and walking surfaces
for correlation helped document the nature of lateral stratigraphic associations and
vertical stacking patterns.
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