02739oam 2200457zu 450 991101957830332120210807004634.01-118-66815-4(CKB)3450000000004228(SSID)ssj0000815146(PQKBManifestationID)11497608(PQKBTitleCode)TC0000815146(PQKBWorkID)10802887(PQKB)10099218(NjHacI)993450000000004228(PPN)189670436(EXLCZ)99345000000000422820160829d1989 uy engur|||||||||||txtccrThe Adirondack Mountains - A Section of Deep Proterozoic Crust[Place of publication not identified]American Geophysical Union19891 online resource (vii, 63 pages) illustrationsField trip guidebook (International Geological Congress (28th : 1989 : Washington, D.C.)) ;T164Bibliographic Level Mode of Issuance: Monograph0-87590-592-7 Published by the American Geophysical Union as part of the Field Trip Guidebooks Series, Volume 164. The Adirondack Mountains of northern New York State are underlain by Middle Proterozoic (Neohelikian) rocks of the Grenville Province, exposed in a breached Cenozoic dome. This trip consists of a traverse from upper amphibolite-facies metavolcanic and metasedimentary rocks in the northwest lowlands, southeastward across a major zone of high ductile strain, into granulite-facies plutonic rocks of the Adirondack highlands, which record depths of 25-30 km in a ooubly-thickened continental crust retween 1.1 and 1.0 Ga. This guidebock is divided into two major sections. The first is an overview of Adirondack geology, with sections on regional setting, stratigraphy, igneous rocks, metamorphism, structure, geochronolgy, stable isotopes, economic geology, and neotectonics, and a specutlative outline of the geologic history of the region. The second section is a road log, with extended descriptions for those stops that are the subject of current or recent research. There are 38 numbered stops on the planned route, in addition to 8 lettered alternate stops that will be visited in time permits.Field trip guidebook (International Geological Congress (28th : 1989 : Washington, D.C.)) ;T164.Geology, StratigraphicGeology, Stratigraphic.551.7Whitney Philip R.1430656WhitneyPQKBBOOK9911019578303321The Adirondack Mountains - A Section of Deep Proterozoic Crust3570409UNINA