GEOLOGY AND STRUCTURE OF THE NORTHWEST TRINIDAD MOUNTAINS, LAS VILLAS PROVINCE, CUBA
1959; Geological Society of America; Volume: 70; Issue: 11 Linguagem: Inglês
10.1130/0016-7606(1959)70[1459
ISSN1943-2674
Autores Tópico(s)Botany and Geology in Latin America and Caribbean
ResumoResearch Article| November 01, 1959 GEOLOGY AND STRUCTURE OF THE NORTHWEST TRINIDAD MOUNTAINS, LAS VILLAS PROVINCE, CUBA PATRICK ARTHUR HILL PATRICK ARTHUR HILL DEPARTMENT OF GEOLOGY, UNIVERSITY OF TASMANIA, HOBART, TASMANIA, AUSTRALIA Search for other works by this author on: GSW Google Scholar Author and Article Information PATRICK ARTHUR HILL DEPARTMENT OF GEOLOGY, UNIVERSITY OF TASMANIA, HOBART, TASMANIA, AUSTRALIA Publisher: Geological Society of America Received: 27 Jan 1958 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1959, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1959) 70 (11): 1459–1478. https://doi.org/10.1130/0016-7606(1959)70[1459:GASOTN]2.0.CO;2 Article history Received: 27 Jan 1958 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation PATRICK ARTHUR HILL; GEOLOGY AND STRUCTURE OF THE NORTHWEST TRINIDAD MOUNTAINS, LAS VILLAS PROVINCE, CUBA. GSA Bulletin 1959;; 70 (11): 1459–1478. doi: https://doi.org/10.1130/0016-7606(1959)70[1459:GASOTN]2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract The major rock types of the Trinidad Mountains of central Cuba are carbonate rocks and schists of presumable Mesozoic age. Both are carbonaceous, yet devoid of fossils. The carbonate rocks comprise limestones (about 90 per cent), brucite limestone, and dolomites.The brucite limestone contains chloritic mica (sheridanite). The dolomites, despite lenticulation, might serve as marker horizons. Two varieties are noted, one with crystals of black euhedral gypsum, the other without them.Most widespread of the schists is a carbonaceous chloritic mica schist which alternates with quartz-garnet-mica schist or less commonly grades into epidote or talc schists.Serpentinites are of two types: a nodular type derived from peridotites, and a fine-grained type (greenstone) derived from microgabbro. The greenstone is older and has been affected by movement of two periods; one (preserpentinization) formed actinolite, the other (postserpentinization) locally developed magnetite-chlorite schist. Other chloritic derivatives include a goethite-chlorite schist and an albite-lawsonite-chlorite schist. The predominant chlorite is clinochlore.All rocks are isoclinally folded. Cleavage or jointing that might serve to establish overturning is absent. Strike faults are prominent. Transverse faults, because of the lack of traceable units, are difficult to recognize.The mountains appear to form a gigantic anticlinorium. A continuous band of amphibolite averaging 1200 feet in thickness separates the carbonate rocks and schists of the mountains from diorite and granodiorite to the north. Although thrusting may exist within the mountains, the large northerly directed thrust formerly postulated for the northern boundary is disproved. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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