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The AAPG/Datapages Combined Publications Database
AAPG Bulletin
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Pennsylvanian reefs in western and northern Texas are known over an area of 50,000 square miles. They show a great variety of shapes and a wide stratigraphic range in their periods of growth. The reefs were formed far from major shorelines in an epicontinental sea. Some of the reefs adjusted themselves to sharp eminences created by early Pennsylvanian uplifts. There are numerous indications that other reefs may have indirect and offset relationships to gentle pre-Pennsylvanian uplifts and flexures.
Some reef fields have produced for many years but most of the fields and most of the reef information were developed since 1946. Pennsylvanian reefs in Texas now account for eight major fields and more than 20 of less importance.
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