MAKYLAXD GEOLOGICAL SURVEY 



XCl 



Miocene. 



c .2 



Feet. 

 J. Drab clay with sandy bands (Zone 20) 15 



Sandy clay indurated above which contains the fol- 

 lowing species: Balanus concavus, Corbula idonea. 

 MacrocaUista marylandica, Dosinia acetabuhun, Car- 

 dium laqueatum, Phacoides anodonta, Crassatellites 

 viarylandicus, Astarte thisphila, Ostrea caroUnensis, 

 Pecten madisonius, Area staminea, etc. (Zone 19) 15 



Bluish green sandy clay carrying a few fossil casts 

 (Zone 18) 12 



Bluish green sandy clay carrying characteristic fossils 

 (Zone 17) 1 



Total 141 



Pleistocene. 



Miocene. 



b.2 



^1 



Pleistocene. 



b.2 



Miocene, g 2 -{ 



Feet 



G2 



30 



XV. Section at Little Cove Point. 



Reddish and yellow loam, sand and gravel 



Bluish sandy clay containing 8 feet from base a 6- 

 inch layer of fossils consisting mostly of Turritella 



plebeia ( Zone 23 ) 



Bluish sandy clay containing numerous layers of fos- 

 sils, among which are the following species: Bal- 

 anus concavus, Terebra inornata, Mangilia parva, 

 Nassa peralta, Columbella communis, Ecphora quad- 

 ricostata, Turritella plebeia, T. variabilis, Polynices 

 I heros, Corbxila inwqualis, Pecten jeffersonius. Area 

 I idonea. etc., (Zone 22) 17 



L. Total 109 



XVI. Section at Chancellor Point. 



Sandy loam 



{ Bluish sandy clay containing the following fossils: 

 Actaon ovoides, Retusa marylandica, Terebra curvil- 

 I irata, Conus diluvianus, Surcula engonata, Fulgur 

 fusiforme, Turritella variabilis, Panopea goldfussi, 

 C I Callocardia sayana, Venus campechiensis var. mor- 

 [g I toni, Isocardia fraterna, Phacoides anodonta, Pecten 

 [ madisonius. P. jeffersonius, etc. (Zone 24) 15 



Total 20 



Feet. 

 5 



OTHER SECTIONS. 



jSTone of the other drainage lines exhibit as complete sections of the 

 Miocene as are found along the Calvert Cliffs, but occasionally good ex- 

 posures are met with, some of the more important of which are given 

 below. 



Section .25 miles below mouth of St. Leonards Creek. 



Pleistocene. 



Miocene, a 



o 



Xi 



O 



c .2 



Feet. 



Yellowish gravel and sand 18 



Greenish sand partially indurated above, solidi- 

 fied to solid rock at base of section carrying 

 the following species: Balanus concavus, Pan- 

 opea americana, Corbula idonea, Cardium 

 laqueatum, Astarte thisphila, Pecten madi- 

 sonius, Melina maxillata, etc. (Zone 17, in 

 part) 18 



Inches 

 6 



Total 37 



