MINERAL RESOURCES OF THE STATE OF NEW YORK 



13 



and Tertiary strata — the latest addition to the continental area — 

 is represented on Long Island and Staten Island. 



The history of the State as traced in its rock formations thus 

 extends from the most remote period of the Precambrian through 

 an ascending series of Paleozoic, Mesozoic and Cenozoic strata 

 to the accumulations of the present day. 



Series of the New York Formations in order of occurrence 



SYSTEM 



STAGE OR FORMATION 



ROCK MATERIALS 



Quaternary .... 



Recent 



Surface, clays, sands, peat, marl 

 Glacial till, boulders, unsorted sands 



Pleistocene 



Tertiary 



Cretaceous. . . . 

 Triassic 



Not differentiated 



Not differentiated 



Newark 



Bedded clays and sands 

 Bedded clays and sands 

 Palisades trap, shale and sandstone 

 Shale and coal " bloom " 



Carboniferous. . 



Sharon 





Olean 



Conglomerate 





Knaop 



Conglomerate and shale 





Oswayo 



Shale, sandstone, thin limestone beds 





Cattaraugus 



Shale, sandstone, conglomerate 



Devonian 



Chemung (Catskill) 



Portage 



Shale, bluestone 

 Shale, bluestone 





Genesee 



Shale 





TuUy 



Limestone 





Hamilton 



Shale, bluestone 





Marcellus 



Shale 





Onondaga 



Limestone, chert 





Oriskany 



Sandstone 





Helderberg 



Limestones (Becraft, New Scotland, 



Silurian 



Manlius 



Kalkberg and Coeymans beds) 

 Limestone 





Rondout 



"Waterlime 





Cobleskill 



Limestone 





Salina 



Shale, gypsum, rock salt, waterlime 



Dolomite 



Shale, sandstone, limestone, iron ore 





Lockport and Guelph. . . 

 Clinton 





Medina 



Shale, sandstone 





Oswego 



Sandstone 



Ordovician. . . . 



Pulaski 



Shale, sandstone c 





Franlcf ort 



Shale a 





Utica 



Shale a 





Trenton 



Limestone, shale, sandstone a 





Black River 



Limestone 





Lowville 



Limestone 



Cambrian 



Chazy and Pamelia. . . . 



Beekmantown 



Potsdam 



Acadian 



Limestone 



Siliceous limestone 



Little Falls dolomite, Hoyt limestone 



Potsdam sandstone and quartzite 

 Stissing limestone 





Georgian 



Georgia slates, Poughquag quartzite 

 Diabase or trap 



Anorthosite, granites, syenite, gabbro 

 Crystalline limestone, quartzite, 

 graphitic schists, gneiss 



Precambrian. . . 



Volcanic 





Deep-seated igneous . . . 

 Grenville sediments .... 



a " Hudson River " shales and sandstones. 



