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interplay of late cenozoic siliciclastic supply and carbonate response on the southeast florida platform >
tables 5 & 6
Table 5.--Ecological data for benthic foraminiferal genera identified in coreholes W-18069, W-18070, W-18071, W-18074, and W-18075. |
Genus |
Depth* (m) |
Environment |
Ammonia |
0-50 |
Brackish and hypersaline lagoons, inner shelf |
Amphistegina |
0-130 |
Coral reefs, lagoons |
Bigenerina |
|
Shelf |
Bulimina |
|
Inner shelf to bathyal |
Buliminella |
|
Mainly shelf, but also lagoons and upper bathyal |
Cancris |
50-150 |
Inner shelf |
Cibicides |
0->2000 |
Lagoons to bathyal |
Cibicidoides |
|
Shelf to bathyal |
Discorbis |
0-50 |
Shelf |
Elphidiumt |
0-50 |
Brackish to hypersaline marshes, lagoons, inner
shelf |
Fursenkoina |
0-1200 |
Lagoons to upper bathyal |
Hanzawaia |
|
Inner shelf |
Homotrema |
|
Marine; inner shelf |
Nonion |
0-180 |
Shelf |
Planulina |
|
Shelf, bathyal |
Quinqueloculina |
|
Hypersaline lagoons, marine shelf |
Rosalina |
0-100 |
Lagoon, inner shelf |
Spirolina |
0-60 |
Lagoons and nearshore |
Spiroloculina |
0-40 |
Lagoons, inner shelf |
Triloculina |
|
Mainly hypersaline lagoons or marine inner shelf |
* Depth reported below ground level.
t Poag (1981) states that Elphidium is abundant and widespread in coastal lagoons, bays, and estuaries. |
Table 6.--Occurrence of stratigraphically important silicoflagellate taxa in coreholes W-18074 and W-18075. |
Well identification |
Sample depth* (m) |
Strati- graphic unit |
Sub Epoch |
Dictyocha ornata africana |
D. ornata ornata |
D. tamarae |
W-18074 |
31.2 |
Tamiami |
Late Pliocene |
X |
X |
X |
W-18074 |
32.9 |
Tamiami |
Late Pliocene |
X |
X |
X |
W-18074 |
33.4 |
Tamiami |
Late Pliocene |
X |
X |
X |
W-18074 |
34.6 |
Tamiami |
Late Pliocene |
X |
X |
X |
W-18074 |
35.4 |
Tamiami |
Late Pliocene |
X |
X |
X |
W-18074 |
36.6 |
Tamiami |
Late Pliocene |
X |
X |
X |
W-18074 |
36.9 |
Tamiami |
Late Pliocene |
X |
X |
X |
W-18074 |
38.1 |
Tamiami |
Late Pliocene |
X |
X |
X |
W-18075 |
22.2 |
Tamiami |
Late Pliocene |
X |
X |
|
W-18075 |
22.7 |
Tamiami |
Late Pliocene |
X |
|
|
W-18075 |
23.4 |
Tamiami |
Late Pliocene |
X |
|
X |
W-18075 |
23.7 |
Tamiami |
Late Pliocene |
X |
|
|
Abbreviations: X = present, UPR = upper Peace River Formation, LPR = lower Peace River Formation.
*Depth reported below ground level.
Note: Samples from the following depths* in meters were barren. (1) W-18074, Tamiami 39.7; UPR 63.6, 76.7, 92.2, 97.2, 99.6, 102.9, 107.4, 110.1, 113.2, 116.8, 130.8, 135.7; LPR? 136.9 and 138.1. (2) W-18075, UPR 68.9, 74.1, 82.3, 86.2, 95.0, 95.1, 102.0, 102.3, 105.0, 111.7, 112.0, and 116.4; LPR? 121.3, 121.4, 125.3, and 127.3. (3) W-18145, UPR 17.7, 21.7, 21.8, and 22.0. |
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