Proterozoic Basement-Cover Relationships in the Needle Mountains, SW Colorado, USA: A Cuspate-Lobate Fold Model

Autor:	C. W. Harris, R. G. Gibson
Rok vydání:	1992
Předmět:	Tectonics Proterozoic Pluton Pelite Geochemistry Cuspate foreland Fold (geology) Syncline Geomorphology Geology Gneiss
Zdroj:	Proceedings of the International Conferences on Basement Tectonics ISBN: 9789048141173
DOI:	10.1007/978-94-017-0833-3_39
Popis:	Proterozoic rocks in the northwestern Needle Mountains include a basement complex, comprised of ca. 1750 Ma gneisses intruded by ca. 1690 Ma granitoid plutons, which is in tectonic contact with quartzites and pelites of the Uncompahgre Group (cover). Cover rocks occupy a complex, E-W trending cuspate synclinorium and are interpreted to be parautochthonous upon, and folded together with, their basement.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4b01473024c3891b3764e190b46d7eaf https://doi.org/10.1007/978-94-017-0833-3_39 Zobrazit plný text záznamu