A reefal facies that progresses from a coral head zone,
through a limestone composed almost entirely of Acropora
cervicornis, a reef crest zone of Acropora palmata, and
a rear zone of mainly sediments and head corals.
A back reef facies, mainly calcarenites or calcilutites with
scattered coral thickets, with lithified lime sands to landwards sometimes replaced by coralline algal nodules or
“rhodolites.” Much of the central part of the back reef
Scotland
district
Christchurch ridge
Radio-metrically dated reef terrace
thousands of years (After Mesollela, 1968)
Sink holes
N
0
5 km
557
Karst depressions
Youngest 65,000 year terrace
Barbados, Figure 1 Distribution of reef terraces on Barbados (from Mesolella, 1968), karst depressions, and sinkholes (from field
mapping and Barbados 1:10,000 map sheet series), from Hopley (1982).
98
BARBADOS