Maryland geological survey. 



MIOCENE, PLATE III. 



FlQ. l.-DIATOMACEOUS WORKS AT LYONS CREEK WHARF ON THE PATUXENT RIVER, 



CALVERT COUNTY. 



Fig. 2.— view SHOWING CONTACT OF THE CALVERT FORMATION ON THE EOCENE AND 



THE INDURATED BAND (zONE 2) 5 FEET ABOVE IT, NEAR 



LYONS CREEK, CALVERT COUNTY. 



VIEWS OF MIOCENE SECTIONS. 



