Reddish-violaceous limestone with gastropods within the cretaceous vulcanites at Sierra de Najasa, south of Camaguey, Eastern-Central Cuba
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Abstract
Red, reddish-gray to violet, sandy and fossiliferous limestones were studied, related to the sequences of the Cretaceous volcanic arc complex in the town of San Agustín, Sierra de Najasa region, province of Camagüey. The area in question is relatively little studied. The objective of the work is to present the detailed characterization of the fossiliferous rocks collected, and to draw attention to these detrital, calcareous and siliciclastic facies, associated with the sedimentary basins developed during the evolution of the Cretaceous volcanic arc complex. The review, sampling of outcrops, identification of textures and microfossils under the microscope, allowed for a more in-depth analysis of the association found, particularly rich in gastropods. The microfossil association, mainly foraminifera, identified in the sandy red-violet limestone (bioclastic grainstone - sandy intraclastic), indicates an age from early Cretaceous Albian to late Cretaceous Cenomanian. However, the presence of acteonellid gastropods is comparable to similar facies known from the Piragua Formation (K2t-cp), a locality where it unconformably covers the Camujiro Formation (K2cm-co). However, the diversity and abundance of gastropods (turritelids, nerineids, naticids and others) suggests a possibly younger deposit, perhaps, of Santonian(?) to Campanian age. The presence of bitumen in styloliths, in a gapy texture, processes of pyritization and oxidation by weathering, which induced the notable red color in these lithologies, denotes a possible migration of hydrocarbon fluids through faults, from some parent rock located in the depth, in this region of the Cuban Southern Oil Province.
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Belmustakov, E.; Dimitriva, E.; Ganev, M.; Haydutov, I.; Kostadinov, I.; Ianev, S.; Ianeva, J.; Kojumdjieva, E.; Eoshujarova, E.; Popov, N.; Shopov, V.; Tcholakov, P.; Tchounev, D.; Tzankov, T.; Cabrera, R.; Díaz, C.; Iturralde, M.; Roque, F. (1981): Geología del territorio Ciego-Camagüey-Las Tunas. Resultado de las investigaciones y levantamiento geológico, escala 1: 250 000. Cuba: Ministerio de Energía y Minas
Dilla, M. & Díaz de Villalvilla, L. (1986): Sobre la edad de algunas vulcanitas de las provincias camagüeyanas. Serie Geológica CIDP. 2. 91-103.
Dunham, R. J. (1962): Classification of carbonate rocks according to the depositional texture, in Hamp, W.E. (ed.), Classification of Carbonate rocks. American Association of Petroleum Geologists Memoir. 1. 108-121.
Fernández López, S. (2000): Temas de Tafonomía. Universidad Complutense de Madrid. España. 167 pp.
Furrazola-Bermúdez, G., Díaz-Otero, C., Rojas-Consuegra, R., García Delgado, D. (2003): Generalización bioestratigráfica de las formaciones volcano-sedimentarias del arco volcánico cretácico y su cobertura, en Cuba central. Instituto de Geología y Paleontología. Centro Nacional de Información Geológica (CD-Rom).
Instituto de Geología y Paleontología - IGP (2023): Léxico Estratigráfico de Cuba. Instituto de Geología y Paleontología / Servicio Geológico de Cuba (IGP/SGC). La Habana. versión digital.
Iturralde-Vinent, M. A. (ed.) (2021): Geología de Cuba y del Caribe: La Habana. Editorial CITMATEL (CD-Rom).
Kerr, A. C., Iturralde-Vinent, M. A., Saunders, A. D., Babbs, T. L. & Tarney, J. (1999): A new plate tectonic model of the Caribbean. Implications from a geochemical reconnosaince of Cuban Mesozoic volcanic rocks. Geological Society of America Bulletin. 111 (11). 1581-1599.
Piñero, E.; Rojas, R., Núñez, K., Nápoles, A., Pérez, F., Marí, T., Muller, H., García, G., Iturralde-Vinent, M. (1990): Informe final sobre los resultados del levantamiento geológico complejo y las búsquedas acompañantes a escala 1:50 000 del polígono CAME-III, Camagüey, Sectores Ciego de Ávila-Vertientes. Cuba: Ministerio de Energía y Minas.
Piñero Pérez, E., Yurievna Mishekurina, E., & Donet Carrillo, P. (2015): Resultados de la exploración complementaria del cuerpo mineral asociado a la veta El Limón Nuevo del sistema vetítico Jacinto. Anuario de la Sociedad Cubana de Geología. 2. 3-12.
Rojas-Consuegra, R. (2001): Secuencias de ambientes transicionales en el Arco Volcánico en Cuba [sesión de conferencia]. IV Congreso Cubano de Geología y Minería: La Habana. Cuba.
Rojas-Consuegra, R. (2004): Los Rudistas de Cuba: Estratigrafía, Tafonomía, Paleoecología y Paleobiogeografía. [Tesis de doctorado no publicada, Instituto Superior Politécnico “José Antonio Echevarría”].
Rojas-Consuegra, R. (2005): Estratigrafía, tafonomía y paleoecología de los rudistas en el territorio cubano [sesión de conferencia]. I Convención sobre Ciencias de La Tierra. GEOCIENCIA’ 2005: La Habana. Cuba.
Tchounev, T., 1981, en: Belmustakov, E.; Dimitriva, E.; Ganev, M.; Haydutov, I.; Kostadinov, I.; Ianev, S.; Ianeva, J.; Kojumdjieva, E.; Eoshujarova, E.; Popov, N.; Shopov, V.; Tcholakov, P.; Tchounev, D.; Tzankov, T.; Cabrera, R.; Díaz, C.; Iturralde, M.; Roque, F. (1981): Geología del territorio Ciego-Camagüey-Las Tunas. Resultado de las investigaciones y levantamiento geológico, escala 1: 250 000. Cuba: Ministerio de Energía y Minas.