Page 53 - Carbonate Platforms Facies, Sequences, and Evolution

Table 1. Qualitative analysis of the allochem assemblages, in the four main microfacies. The abbreviations fm the i
peloid grainstone, type B = calcretized bioclast grainstone-packstone, Type C = bioclast wackestone.
Microfacies 1 Microfacies 2 Microfacies 3 Microfacies 4
Bioclast peloid Bioclast intraclast Bioclast oncolite Bioclast wkst.
intraclast gst. oncolite gst. -pkst. pkst.-wkst.
Allochems in
all samples
Abundant Brachiopod shell and spine Crinoid ossicles and stems Brachiopod shell and Molluscs (bivalves and
fragments Brachiopod shell and spine fragments gastropods)
Crinoid ossicles spine fragments Calcitized spicules �
Echinoderm plates s,
Peloids c
Uncommon Bryozoans (stick type and Bryozoans (stick type and Bryozoans (stick type and Brachiopods � �
fenestrate) fenestrate) fenestrate) Bryozoans (stick and .,
Foraminifera (endothyrids Foraminifera (endothyrids Crinoid ossicles fenestrate) �
and archaediscids) and tetrataxids) Echinoderm plates Foraminifera ( endothyrids) ;:;·
Foraminifera ( tetrataxids) o-
s·
Allochems in [
some samples ::::-. (")
Common Foraminifera ( tetrataxids, Algae ( stachenids) Mollusc shell fragments Ostracods "' ;:- c
agglutinating types, Foraminifera Algae (kamaenids and Foraminifera .,
earlandids) ( archaediscids) ungdarellids) ( archaediscids) ,1:>
Algae (stachenids) Oncolite Foraminifera ( earlandids, Alg11e (stacheoides) �
Molluscs (bivalves and Type C intraclast endothyrids and
gastropods) agglutinating types)
Types A, B and C intraclasts
Trace Foraminifera Ostracod valves Algae (Koninckopora and Foraminifera
( saccaminopsids) Algae (green, indet. and stachendis) ( saccaminopsids)
Oncolites ungdarellid) Foraminifera Green algae (indet.)
Algae (kamaenids) Foraminifera ( saccaminopsids) Types A and C intraclasts
Rugose and tabulate coral (agglutinating types) Ostracods
fragments Rugose coral Hexaphyllia
Trilobite Molluscs (bivalve and Peloids
Calcitized monaxon spicules gastropod)
:!3