Page 119 - 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 Carbonate Platforms: Facies, Sequences and Evolution Edited by Maurice E. Tucker, The changed often and rapidly throughout the Mesozoic. adjacent basins because the palaeostructural setting mation Vivarais bordering the southeastern Massif Central (Ardeche­ sidence and Jurassic faulting related to the differential sub­ margin, the basin was the result of intense Triassic slip faults

of
for
and
transition
the
from:
on
has
the
studying
small,
between
Cevennes)
European
(1) sandy
origin,
sustained
basin
narrow
carbonate
provides
alluvial
sedimentological,
only
and
basement.
development
sub-basins
plains;
weak
The
valuable
to
platforms
and
platform
VA 11 CNRS,
(2)
a
infor­
tectonic
1). The
palaeontological
and
has
margin
(umbilics);
109
and
and
termination
shallow
ELMI
to
tions
dealt
in the
(5)
forming
sociated.
a
structural
with
in
proximal
(D'Argenio
of carbonate
slope
et
the
the
studies
main part
Coarse
al. ,
of a
of
platform;
platforms
(3)
Internal
document
1975).
and
distal
terrigenous
continental
Zones.
different
adjacent
However,
allow striking comparison with
Theme 11, Subsidence et Diagenesis
margin.
platform;
These
deposits
kinds
the Recent (Winterer & Bosellini, 1981).
basins.
(4)
The
The second results from more global processes (seafloor spreading, sea-level variations and
of
palinspastic reconstruction
these
are
of
Jurassic palaeogeography, when oceanic crust
Centre de Pateontologie Stratigraphique et Paleoecologie,
reconstruc­
are less appropriate for the earliest stages of plat­
The peri-adriatic platforms and basim have a strik­
sedimentation and carbonate accumulation were as­
late
ing similarity, at least in geometry, to the Bahamas
model� from
was
the southern Tethyan Realm.
mostly been studied for a limited time interval. In
the Alps and in their forelands, classic studies have
form evolution, especially for areas where siliciclastic
Exceptions are known in western Algeria and eastern
models
absent