Macanal Formation
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The Macanal Formation or Macanal Shale is a fossiliferous geological formation of the Altiplano Cundiboyacense and Tenza Valley in the Eastern Ranges of the Colombian Andes. The predominantly organic
Outcrop of the Macanal Formation along the road between Bogotá and Villavicencio
Fractured sample of the Macanal Formation
The Macanal Formation is found bordering the Guavio Reservoir
Blakey Pleist COL
Rosablanca Formation
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The Rosablanca Formation is a geological formation of the Altiplano Cundiboyacense, Eastern Ranges of the Colombian Andes and the Middle Magdalena Basin. The formation consists of grey limestones, dol
Macanal Formation
…Formation. The age has been estimated to be Berriasian to Valanginian. Stratigraphically, the formation is time equivalent with the Mercedes, Tambor, Rosablanca, Murca and La Naveta Formations. The formation has been deposited in a shallow marine environment in an enclosed basin, with as provenance areas the…
Blakey 020Ma COL
Blakey 035Ma COL
Blakey 050Ma COL