[DATE OF SAMPLING UNKNOWN OR NOT APPLICABLE.] Mechanical compaction of a cross 
bank core from Florida Bay produced sedimentary features recognized in ancient fine¬ 
grained limestone. These features included: (1) reduction of sediment thickness by 40- 
50%, (2) creation of organic, wispy layers that mimic stylolites, (3) obliteration of 
identifiable marine grasses, (4) creation of packstone layers because of compaction of 
wackestone sediments, and (5) reorientation of fossils toward the horizontal. The end 
product was an artificial rock that resembled a biomicritic limestone. 
1988 0 
Knight, C. D. (1988) Pore-fluid chemistry and selected carbonate mudbanks and mangrove- 
fringed islands, Florida Bay. M. S. Thesis. Wichita State University, Wichita, KS. 236 pp. 
[DATE OF SAMPLING UNKNOWN OR NOT APPLICABLE.] By comparing Florida Bay water 
and carbonate interstitial pore-fluid Ca/CI, Mg/Cl, and Sr/CI ratios, was possible to 
infer if diagenesis was occurring in selected carbonate mudbanks (Cross Bank and Crab 
Key Bank) and mangrove-fringed islands (Bald Eagle and Crane Key) within the Bay. 
The Cross Bank pore-fluid ratios indicate that the bulk of the mudbank aragonite and 
high-magnesium calcite sediments have undergone little diagenetic change. The Bald 
Eagle pore-fluid ratios indicated the following: (1) high-magnesium calcite sediments 
and some of the lower island aragonite sediments have started to convert of low- 
magnesium calcite, (2) incipient phreatic cementation within the upper 1 - 3 ft, and (3) 
formation of protodolomite in the northern lake regions. Saturation calculations indicate 
that both the mudbank and island interstitial pore-fluids are supersaturated with 
respect to calcite and aragonite. The saturation profiles within the mudbanks and 
islands sediments can be attributed in part to the reduction of sulfate by heterophic 
bacteria in the process of oxidation of organic matter. Mechanical compaction of a 
Cross Bank core produced sedimentary features that included: (1) reduction of 
sediment thickness by 40 - 50%, (2) creation of organic wispy layers, (3) obliteration 
of identifiable marine grasses, (4) creation of packstone layers, and (5) reorientation 
of fossils toward the horizontal. 
1988 0 
Lyons, W. G. (1988) A review of Caribbean Acanthochitonidae (Mollusca: Polyplacophora) 
with descriptions of six new species of Acanthochitona Gray, 1821. Amer. Malacol. Bull. . 
6(1 ):79-1 14. 
[DATE OF SAMPLING UNKNOWN OR NOT APPLICABLE.] Nine previously described species 
of Acanthochitonidae are recognized in the region between Bermuda and the Caribbean 
coast of South America: Acanthochitona andersoni Watter, 1981; A. astrigera (Reeve, 
1847); A. balease Abbott, 1954 (+ A. elongata and A. interfissa, both Kaas, 1972); A. 
bonairensis Kaas, 1972; A. hemphilli (Pilsbry, 1893); A. pygmaea (Pilsbry, 1893); 
Choneplax lata (Guilding, 1829); Cryptoconchus floridanus (Dali, 1889). Four new 
species ( Acanthochitona lineata, A. roseojugum, A. worsfoldi, and A. zebra) are 
described from Florida, the Bahama Islands and the northern Caribbean; Acanthochitona 
ferreirai sp. nov. is described from Pacific coasts of Panama and Costa Rica. No 
subsequently collected specimens were seen of Acanthochitona spiculosa (Reeve, 
1847), originally described from the West Indies; A. spiculosa is considered a species 
inquirenda. Some specimens were collected in Florida Bay and the Florida Keys. 
1988 0 
Mackin, J. E., and R. C. Aller (1988) Dissolved boron production in biogenic sediments; 
patterns and causes. EOS. Transactions . 69(44): 1263-4. 
[ABSTRACT ONLY. DATE OF SAMPLING UNKNOWN OR NOT APPLICABLE.] Profiles of 
dissolved B vs depth were determined in short (-20 cm) and long (>100 cm) cores, 
taken at several sites in the carbonate sediments of Florida Bay. Boron concentrations 
316 
