Slate, phyllite, schist, metagraywacke.
Shale, argillite, quartzite.
South of 43 degrees; slate, shale, thin quartzite, includes Stuyvesant Conglomerate, Diamond Rock Quartzite, Curtis Mountain Quartzite, and Bomoseen Graywacke Members.
South of Troy; shale, conglomerate, limestone.
Shale, slate, cherts.
South of Troy; shale, siltstone.
Austerlitz Phyllite - minor quartzite
Columbia County: Copake Formation-limestone, dolostone; Halcyon Lake Formation-chert, calc-dolostone.
Underlying bedrock geology unknown.
Calcitic and dolomitic marble.
Minor meta-graywacke lenses. Includes Greylock Schist in Massachusetts.
Columbia County: Pine Plains-dolostone, oolite, shale.
Phyllite, schist, metagraywacke.
Minor mudstone, sandstone.
Vermont: Whipple Limestone.
Chaotic mixture of Early Cambrian thru Middle Ordovician pebble to block-size angular to rounded clasts in a pelitic matrix of Middle Ordovician (Barneveld) age. Rims and floors earlier submarine gravity slides of Taconian Orogeny.
Occuring as slivers caught along thrusts of later allochthones, or carbonate blocks in Taconic Melange. Also mapped as horses along normal faults.
West of Albany: Alsen, Becraft, New Scotland, Kalkberg, Coeymans, and Manlius Limestones; Rondout Dolostone. South of Albany: Port Ewen, Alsen thru Manlius Limestones; Rondout Dolostone.
Briarcliff - locally cherty; Pines Plains - dolostone, shale, oolite.
Copake Formation-limestone, dolostone, siltstone; Rochdale Formation-limestone, dolostone; Halcyon Lake Dolostone-locally cherty.
Greenstones and tuffs and/or basalt
Schoharie Formation-shale, limestone; Carlisle Center Siltstone; Esopus Shale.
Cheshire Quartzite and Dalton Formation