Page 157 - Carbonate Platforms Facies, Sequences, and Evolution

© 1990 The International Association of Sedimentologists ISBN: 978-0-632-02758-3 James Lee Wilson, Paul D. Crevello, J. Rick Sarg, J. Fred Read 145 Carbonate Platforms: Facies, Sequences and Evolution Edited by Maurice E. Tucker, North Carolina, Chapel Hill, NC 27514, USA. t Present address: as nuclei for the growth of carbonate platforms, the College, Northfield, MN 55057, USA. patterns. *Present producing The basic Basin; Playford, 1980), or any combination of these parts as their margins step

of
the
trends.
platforms
Bahamas;
the
address:
of
may
incursion
platforms
the
Among
of
Devonian
Schlager
northern
the
expand
Department
reefs
colder,
as
and their
of
Italian continental crust.
Apennines.
sedimentologic
numerous
their
& Ginsburg,
fringing
M.
The
and
less saline
These
the
Geology,
margins
variables
BI CE*
normal
waters into
that
1981), retreat
Canning
Carleton
grow
Department of Geology, University of
adjacent basins are
(e.g.,
stratigraphic
the
faults
it
record
subsequent opening of
and K. ·G.
tonic
basins,
factors
influence
indicate
fragmented
crustal
have
setting,
the
the
sedimentation
that
tectonic
at
crustal
Because
the
James & Mountjoy
STEWART t
the Liguride Ocean
the
subsidence
sea-level
setting
combined
evolution
pre-existing
crustal
is
University of California, Berkeley,
to
and
drowning
controls in the northern Apennines
Apennines of Italy (Fig. 1).
of
structures
seamounts:
an
margin,
play
Calcare
and
a
resulted
fluctuations,
structures
CA 94720,
key
carbonate
the
from
important
variations
produced a continental
Massiccio
a
eustatic sea-level
USA
role
in
controlling
tectonic and
in
commonly
factor
nature
(1983) have suggested that tec­
reef­
platforms,
of
the
act
geographical distribution of carbonate platforms may
is shown how the tectonic setting and ecological
formation and drowning of a group of small, isolated
carbonate platforms (seamounts) from the northern
in
their
the most important controlling factors. In this paper,
building organisms through time and diagenesis are