on the offshore atolls (Gischler and Hudson, 1998) based
on the analysis of shallow drilling (Figure 7). Holocene
reef thickness ranges from 5 to >21 m (Gischler, 2008).
Holocene reefs largely consist of branched (A. palmata,
A. cervicornis) and massive (Montastraea sp., Diploria
sp., Siderastrea sp.) corals, a well-cemented grainstone–
rudstone, and an unconsolidated rubble and sand facies.
Reef accretion rates range from 0.46 to 7.5 m/kyr and
average 3.03 m/kyr (Gischler, 2008). The Holocene
sea-level curve of Belize is based on A. palmata and red
mangrove radiometric age dates. The curve is transgressive
and discussed controversially (Toscano and Macintyre,
Belize Barrier and Atoll Reefs, Figure 6 Simplified geologic–tectonic map of Belize.
116
BELIZE BARRIER AND ATOLL REEFS
on the analysis of shallow drilling (Figure 7). Holocene
reef thickness ranges from 5 to >21 m (Gischler, 2008).
Holocene reefs largely consist of branched (A. palmata,
A. cervicornis) and massive (Montastraea sp., Diploria
sp., Siderastrea sp.) corals, a well-cemented grainstone–
rudstone, and an unconsolidated rubble and sand facies.
Reef accretion rates range from 0.46 to 7.5 m/kyr and
average 3.03 m/kyr (Gischler, 2008). The Holocene
sea-level curve of Belize is based on A. palmata and red
mangrove radiometric age dates. The curve is transgressive
and discussed controversially (Toscano and Macintyre,
Belize Barrier and Atoll Reefs, Figure 6 Simplified geologic–tectonic map of Belize.
116
BELIZE BARRIER AND ATOLL REEFS