Petrology of Carbonate Hardgrounds

Introduction to the Project:

Hardgrounds, synsedimentarily lithified carbonate sea-floors, are fascinating geological and biological systems. They are found throughout the Phanerozoic in sufficient numbers to be geologically useful, yet well-preserved examples are scarce enough to be of unusual interest...
http://www3.wooster.edu/geology/hdgd/hdgdmain.html