Title page for ETD etd-06162009-063106
|Type of Document
||Jahnke, Philip A.
||Organic-walled microplankton biostratigraphy and paleoecology of the Maastrichtian Prairie Bluff Chalk formation of central and western Alabama
||Master of Science
|McLean, Dewey M.
|Bambach, Richard K.
|Gilinsky, Norman L.
|Date of Defense
Marine organic-walled microplankton biostratigraphy
of the Maastrichian Prairie Bluff Chalk is documented. A
total of 69 dinoflagellate species were identified in the
Prairie Bluff Chalk. Samples were studied from three sites
in central and western Alabama (Tombigbee River, Millers
Ferry, and Braggs). Also included were several samples of
the overlying Clayton Formation, and the underlying Ripley
The species and their stratigraphic ranges were
compared with other coeval sections in the U. S. and Europe.
Dinoflagellate Zones Va and Vb of Wilson (1974) are
recognized in the Prairie Bluff Chalk. This suggests the
age of the Prairie Bluff Chalk is restricted to late
Maastrichtian. The Prairie Bluff Chalk correlates to the
upper Providence Formation of Georgia (Firth 1984); the
lower Providence being early Maastrichtian. The basal
Clayton Formation may be latest Maastrichtian in age
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