Reference Tables for Physical Setting/EARTH ... - Mrsciguy.com

ISLAND SOUNDLONGGeneralized Bedrock Geology of New York Statemodified fromGEOLOGICAL SURVEYNEW YORK STATE MUSEUM1989Niagara RiverGEOLOGIC PERIODS AND ERAS IN NEW YORKCRETACEOUS and PLEISTOCENE (Epoch) weakly consolidated to unconsolidated gravels, sands, and claysLATE TRIASSIC and EARLY JURASSIC conglomerates, red sandstones, red shales, basalt, and diabase (Palisades sill)PENNSYLVANIAN and MISSISSIPPIAN conglomerates, sandstones, and shalesDEVONIAN limestones, shales, sandstones, and conglomeratesSILURIAN SILURIAN also contains salt, gypsum, and hematite.ORDOVICIANCAMBRIAN}}limestones, shales, sandstones, and dolostonesCAMBRIAN and EARLY ORDOVICIAN sandstones and dolostonesmoderately to intensely metamorphosed east of the Hudson RiverCAMBRIAN and ORDOVICIAN (undifferentiated) quartzites, dolostones, marbles, and schistsintensely metamorphosed; includes portions of the Taconic Sequence and Cortlandt ComplexTACONIC SEQUENCE sandstones, shales, and slatesslightly to intensely metamorphosed rocks of CAMBRIAN through MIDDLE ORDOVICIAN agesMIDDLE PROTEROZOIC gneisses, quartzites, and marblesLines are generalized structure trends.MIDDLE PROTEROZOIC anorthositic rocks}}}DominantlysedimentaryoriginDominantlymetamorphosedrocksIntensely metamorphosed rocks(regional metamorphism about 1,000 m.y.a.)Miles0 10 20 30 40 500 20 40 60 80KilometersNW ESPhysical Setting/Earth Science Reference Tables — 2010 Edition 3