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The Guaduas Formation consists mainly of shales with intercalated sandstone beds. The formation contains coalbeds that are widely explored in the area. [2] Fossil remains of Coussapoa camargoi, Ficus andrewsi, Berhamniphyllum sp. and Archaeopaliurus boyacensis have been found in coalbeds in Zipaquirá and Tasco, Boyacá.
The Peña de Otí (English: "Rock of Otí") is an outcrop of alternating shales and sandstones of the Socha Formation. [18] It is observed to the southwest from the main trail leading to the Mirador de los Cóndores on the páramo. The rocks of the Peña de Otí were used to construct the churches and convent in Monguí. Legends about the Peña ...
Hernández-Pacheco, F. 1946. Fases de formación de los médanos en las playas de Cabo Juby. Boletín de la Real Sociedad Española de Historia Natural 44(3–4):239-242. Morales, P.R. 1979. Estudio de los médanos de Venezuela: evidencias de un clima desértico. Acta Biológica de Venezuela 10:19-49. Prego, A.J. 1953–54. Fijación de médanos.
The Rosablanca Formation (Spanish: Formación Rosablanca, Kir) is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes and the Middle Magdalena Basin.
Extent of the formation in the Ischigualasto-Villa Unión Basin. Los Colorados Formation is a unit with an approximate thickness of 600 metres (2,000 ft) of the Agua de la Peña Group in the Ischigualasto-Villa Unión Basin, where it is exposed in the Ischigualasto Provincial Park, a World Heritage Site in Argentina.
The approximately 360 metres (1,180 ft) thick Barzalosa Formation overlies the Olini Group and the Seca Formation in the west and is overlain by the Honda Group. [2] In the east towards Fusagasugá, the formation overlies the La Tabla Formation and is overlain by the Carmen de Apicalá Conglomerate. [4]
The La Quinta Formation is a Jurassic geologic formation which crops out in the Cordillera de Mérida and Serranía del Perijá of western Venezuela and northeastern Colombia. The formation is also present in the subsurface of the Cesar-Ranchería and Maracaibo Basins .
The Girón Formation (Spanish: Formación Girón, Jg) is an extensive geological formation stretching across 325 kilometres (202 mi) from the north in Teorama, Norte de Santander, across the Mesa de Los Santos and Chicamocha Canyon towards west of Nobsa, Boyacá in the northern part of the Altiplano Cundiboyacense in the south.