Stratigraphy, age and depositional environmentedit
The Valle Alto Formation, part of the Quebradagrande Complex, is not defined as a proper formation, rather as a collection of rocks of different facies origin segmented by tectonic forces of the Central Ranges.[1]
The Valle Alto Formation has been deposited as the result of marine incursions from the proto-Caribbean into Colombia, preceding the larger-scale transgression of the Cretaceous.[4]
Mojica, Jairo, and Andreas Kammer. 1995. Eventos Jurásicos en Colombia. Geología Colombiana 19. 165-172. Accessed 2017-05-05.
Mojica, Jairo. 1984. An outline on the Jurassic in Colombia. Geología Colombiana 13. 129-136. Accessed 2017-05-05.
Moreno Sánchez, Mario; Arley de Jesús Gómez Cruz, and Luz Mary Toro. 2007. Proveniencia del material clástico del complejo Quebradagrande y su relación con los complejos estructurales adyacentes. Revista Boletín Ciencias de la Tierra 22. 27-38. Accessed 2017-05-05.
Various, Authors. 2009. Plan de Manejo 2008 - 2012 - Parque Nacional Natural Selva de Florencia, 1-141. Isagen. Accessed 2017-05-05.
Mapsedit
Mosquera, Darío; Pedro Martín; Carlos Vesga, and H. González. 2009. Plancha 206 - Manizales - 1:100,000, 1. INGEOMINAS. Accessed 2017-06-06.
January 01, 1970
valle, alto, formation, spanish, formación, valle, alto, geological, formation, central, ranges, colombian, andes, formation, composed, shales, sandstones, conglomerates, dates, late, jurassic, period, ammonites, fossil, flora, have, been, found, stratigraphic. The Valle Alto Formation Spanish Formacion Valle Alto Jva is a geological formation of the Central Ranges of the Colombian Andes The formation is composed of shales sandstones and conglomerates and dates to the Late Jurassic period Ammonites and fossil flora have been found in the Valle Alto Formation Valle Alto FormationStratigraphic range Late Jurassic 150 145 Ma PreꞒ Ꞓ O S D C P T J K Pg N TypeGeological formationUnit ofQuebradagrande ComplexLithologyPrimaryShale sandstoneOtherConglomerateLocationCoordinates5 22 08 N 75 22 03 W 5 36889 N 75 36750 W 5 36889 75 36750RegionCaldas DepartmentCentral RangesAndesCountry ColombiaType sectionNamed forHacienda Valle AltoNamed byGonzalez et al LocationSan FelixYear defined1977Coordinates5 22 08 N 75 22 03 W 5 36889 N 75 36750 W 5 36889 75 36750Approximate paleocoordinates3 06 N 72 24 W 3 1 N 72 4 W 3 1 72 4RegionCaldasCountry ColombiaPaleogeography of Northern South America150 Ma by Ron Blakey Landscape around San Felix Caldas where the formation is found Contents 1 Etymology 2 Lithologies 3 Stratigraphy age and depositional environment 4 Fossil content 5 Outcrops 6 See also 7 Notes 8 References 8 1 Bibliography 8 1 1 MapsEtymology editThe formation was described and named in 1977 by Gonzalez et al after Hacienda Valle Alto San Felix Caldas 1 2 Lithologies editThe Valle Alto Formation is composed of shales sandstones and conglomerates 3 Stratigraphy age and depositional environment editThe Valle Alto Formation part of the Quebradagrande Complex is not defined as a proper formation rather as a collection of rocks of different facies origin segmented by tectonic forces of the Central Ranges 1 The Valle Alto Formation has been deposited as the result of marine incursions from the proto Caribbean into Colombia preceding the larger scale transgression of the Cretaceous 4 Fossil content editFossils of Piazopteris branneri note 1 Cladophlebis sp Classopollis sp Ctenozamites sp Desmiophyllum sp Gleichenites sp Nilssoniopteris sp Otozamites sp Pachypteris sp Ptilophyllum sp Rhabdoderas sp Sagenopteris sp Sandlingites sp Sphenopteris sp Substeuroceras sp Trigonia sp and Zamites sp have been found in the Valle Alto Formation 5 6 Outcrops edit nbsp nbsp class notpageimage Type locality of the Valle Alto Formation in Caldas The Valle Alto Formation is found near its type locality in the Central Ranges of the Colombian Andes around Pacora and Salamina 1 See also edit nbsp Colombia portal nbsp Paleontology portal nbsp Geology of the Eastern Hills nbsp Geology of the Oceta Paramo nbsp Geology of the Altiplano CundiboyacenseNotes edit Piazopteris branneri listed as the Permian genus Glossopteris branneri 5 References edit a b c Moreno Sanchez et al 2007 Mojica 1984 p 132 Isagen 2009 p 9 Mojica amp Kammer 1995 p 170 a b Mojica 1984 pp 131 132 Valle Alto Formation at Fossilworks org Bibliography edit Mojica Jairo and Andreas Kammer 1995 Eventos Jurasicos en Colombia Geologia Colombiana 19 165 172 Accessed 2017 05 05 Mojica Jairo 1984 An outline on the Jurassic in Colombia Geologia Colombiana 13 129 136 Accessed 2017 05 05 Moreno Sanchez Mario Arley de Jesus Gomez Cruz and Luz Mary Toro 2007 Proveniencia del material clastico del complejo Quebradagrande y su relacion con los complejos estructurales adyacentes Revista Boletin Ciencias de la Tierra 22 27 38 Accessed 2017 05 05 Various Authors 2009 Plan de Manejo 2008 2012 Parque Nacional Natural Selva de Florencia 1 141 Isagen Accessed 2017 05 05 Maps edit Mosquera Dario Pedro Martin Carlos Vesga and H Gonzalez 2009 Plancha 206 Manizales 1 100 000 1 INGEOMINAS Accessed 2017 06 06 Retrieved from https en wikipedia org w index php title Valle Alto Formation amp oldid 1084549586, wikipedia, wiki, book, books, library,
