Generalized Bedrock Geology of New York State Modified

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Generalized Bedrock Geology of New York State Modified Physical Setting/Earth Science Reference Tables —2011Edition Tables Setting/Earth Physical ScienceReference 73° 75° 74° 45° 45° Generalized Bedrock Geology of New York State MASSENA modified from GEOLOGICAL SURVEY PLATTSBURGH NEW YORK STATE MUSEUM 76° St. Lawrence River 1989 N I A L P M MT. MARCY A H C 44° VERMONT 44° WATERTOWN iver R elevation 75 m LAKE OLD FORGE LAKE ONTARIO 79° 78° 77° Hudson OSWEGO r e v UTICA i ROCHESTER NIAGARA FALLS R SYRACUSE a r 43° a 43° g Mohawk a i N River BUFFALO elevation 175 m ALBANY LAKE FINGER LAKES ERIE Genesee River ITHACA River JAMESTOWN ELMIRA BINGHAMTON MASSACHUSETTS River SLIDE MT. Susquehanna 42° 42° KINGSTON 79° 78° 77° 76° Delaware PENNSYLVANIA Hudson River GEOLOGIC PERIODS AND ERAS IN NEW YORK 75° CONNECTICUT CRETACEOUS and PLEISTOCENE (Epoch) weakly consolidated to unconsolidated gravels, sands, and clays NEW JERSEY LATE TRIASSIC and EARLY JURASSIC conglomerates, red sandstones, red shales, basalt, and diabase (Palisades sill) SOUND AND Dominantly ISL PENNSYLVANIAN and MISSISSIPPIAN conglomerates, sandstones, and shales G N 73° 41° sedimentary O 41° DEVONIAN limestones, shales, sandstones, and conglomerates L 41° RIVERHEAD 72° SILURIAN } SILURIAN also contains salt, gypsum, and hematite. origin NEW YORK ORDOVICIAN CITY limestones, shales, sandstones, and dolostones LONG ISLAND CAMBRIAN } } ATLANTIC OCEAN CAMBRIAN and EARLY ORDOVICIAN sandstones and dolostones 40°30' moderately to intensely metamorphosed east of the Hudson River Dominantly CAMBRIAN and ORDOVICIAN (undifferentiated) quartzites, dolostones, marbles, and schists 73°30' 73° metamorphosed 74° intensely metamorphosed; includes portions of the Taconic Sequence and Cortlandt Complex rocks Miles TACONIC SEQUENCE sandstones, shales, and slates Miles N slightly to intensely metamorphosed rocks of CAMBRIAN through MIDDLE ORDOVICIAN ages } 020401005 30 5040302010 0 MIDDLE PROTEROZOIC gneisses, quartzites, and marbles WE Lines are generalized structure trends. 08604020 0 Intensely metamorphosed rocks 0204060 80 MIDDLE PROTEROZOIC anorthositic rocks } (regional metamorphism about 1,000 m.y.a.) Kilometers 3 Kilometers S.
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