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( T o p )
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A d d l i n k s
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T o o l s
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P r i n t / e x p o r t
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A p p e a r a n c e
C o o r d i n a t e s : 3 ° 4 4 ′ 1 2 . 6 ″ N 7 5 ° 2 7 ′ 5 5 . 5 ″ W / 3 . 7 3 6 8 3 3 ° N 7 5 . 4 6 5 4 1 7 ° W / 3.736833; -75.465417
F r o m W i k i p e d i a , t h e f r e e e n c y c l o p e d i a
Fossiliferous geological group
Oliní Group Type Geological group Sub-units See text Underlies Córdoba Fm. , La Tabla Fm. Overlies Güagüaquí Group Loma Gorda Formation Thickness up to 287 m (942 ft ) Primary Radiolarite , siltstone , chert , mudstone Other Sandstone , limestone , conglomerate Coordinates 3°44′12.6″N 75°27′55.5″W / 3.736833°N 75.465417°W / 3.736833; -75.465417 Region VMM , VSM Central , Eastern Ranges , Andes Country Colombia Extent ~700 km (430 mi ) Named for Quebrada Oliní Named by Peters Location Chaparral, Tolima Year defined 1954 Coordinates 3°44′12.6″N 75°27′55.5″W / 3.736833°N 75.465417°W / 3.736833; -75.465417 Approximate paleocoordinates 1°30′N 54°30′W / 1.5°N 54.5°W / 1.5; -54.5 Region Cundinamarca , Boyacá , Huila , Santander , Tolima Country Colombia by Ron Blakey
The Oliní Group (Spanish : Grupo Oliní , K3 k 5 fossiliferous geological group of the VMM , VSM and the eastern flanks of the Central and western flanks of the Eastern Ranges of the Colombian Andes . The regional group stretches from north to south across approximately 700 kilometres (430 mi ) and dates to the Late Cretaceous period; Coniacian , Santonian and Campanian epochs, and has a maximum thickness of 287 metres (942 ft ). Fossils of Eonatator coellensis Coello , Tolima .
Etymology [ edit ]
The group was named in 1954 by Peters, and redefined by De Porta in 1965.[1] Chaparral , Tolima .[2]
Subdivisions [ edit ]
The Oliní Group is a geological group usually described as a whole due to the problematic lateral continuity,[3] Lower Chert member , Upper Sandstone Member and Upper Chert member .[4]
Lower Lydite Formation [ edit ]
Claystone Level [ edit ]
Upper Lydite Formation [ edit ]
Paleontology [ edit ]
Restoration of Eonatator coellensis
Fossils of the mosasaur Eonatator coellensis Coello , Tolima in the Oliní Group.[10] [11]
Stratigraphy and depositional environment [ edit ]
The Oliní Group conformably[12] Loma Gorda Formation of the Güagüaquí Group and is overlain by the Cimarrona Formation in the VMM, the Córdoba Formation in the Guaduas Syncline and the La Tabla Formation near Tocaima and in Huila and Tolima.[8] Coniacian to Campanian . Stratigraphically, the lower part of the formation is time equivalent with the upper part of the Chipaque Formation and the Conejo Formation ,[13] La Luna Formation and Guadalupe Group .[14] outer platform setting,[15] sequence boundary , forming the base of the unit. The radiolarites of the Upper Lydite Formation represent a maximum flooding surface .[16]
Outcrops [ edit ]
Type locality of the Oliní Group in Tolima
Type locality
The type locality of the Oliní Group is Quebrada Oliní in Chaparral, Tolima. The group is furthermore found over a large stretch in the eastern Central and western Eastern Ranges of Colombia, bordering the Magdalena River on both sides. The group crops out to the northwest of Vélez in the hanging wall of the El Minero Fault ,[17] Caparrapí ,[18] footwall of the El Cámbulo Fault between Útica and Guaduas and in the Bituima Synclinal,[19] Vianí Fault and occurs in the hanging wall of the Alto del Trigo Fault ,[20] Magdalena River surrounding Guataquí and northwest of Coello and in the Eastern Ranges cross-cut by the Sumapaz River northeast of Ricaurte ,[21] Salcedo Fault to the west of Apulo ,[22] Cucuana River near Ortega ,[23] El Páramo Fault east and south of Carmen de Apicalá and in the hangingwall of the Prado Fault ,[24] Quinini Fault west and south of Icononzo ,[25] La Pava Fault east and southeast of Chaparral,[26] Altamizal Fault east of Dolores , east and west of the Prado Reservoir near Prado ,[27] Chusma Fault , west of Aipe ,[28] Alpujarra ,[29] Baché Fault in Palermo ,[30] Picarní and San Andrés Faults ,[31] Yaguará ,[32] La Plata, Huila ,[33] Naranjal , where the group is emplaced by the Altamira Fault .[34]
Regional correlations [ edit ]
See also [ edit ]
Geology of the Eastern Hills
Geology of the Ocetá Páramo
Geology of the Altiplano Cundiboyacense
References [ edit ]
^ Acosta & Ulloa, 2002, p.24
^ Quebrada Oliní, Chaparral
^ Guerrero et al., 2000, p.58
^ Reyes et al., 2006, p.65
^ a b c d e Acosta & Ulloa, 2002, p.25
^ a b c Acosta & Ulloa, 2001b, p.51
^ a b Acosta & Ulloa, 2001b, p.52
^ a b Acosta & Ulloa, 2002, p.27
^ Reyes et al., 2006, p.66
^ Eonatator coellensis at Fossilworks .org
^ Páramo Fonseca, 2013
^ Acosta & Ulloa, 2001a, p.60
^ Montoya & Reyes, 2005, p.34
^ Acosta & Ulloa, 2002, p.22
^ Acosta & Ulloa, 2001a, p.62
^ Villamil, 2012, p.205
^ Plancha 170, 2009
^ Plancha 189, 2005
^ Plancha 208, 1998
^ Plancha 227, 1998
^ Plancha 245, 1999
^ Plancha 246, 1998
^ Plancha 263, 2009
^ Plancha 264, 2002
^ Plancha 265, 2009
^ Plancha 282, 1993
^ Plancha 283, 1995
^ Plancha 302, 1993
^ Plancha 303, 2002
^ Plancha 323, 1998
^ Plancha 344, 1999
^ Plancha 345, 1999
^ Plancha 366, 1998
^ Plancha 389, 2003
Bibliography [ edit ]
Acosta, Jorge E.; Ulloa, Carlos E. (2002), Mapa geológico del Departamento de Cundinamarca 1:250,000 - Memoria Explicativa , INGEOMINAS , pp. 1–108
Acosta Garay, Jorge; Ulloa Melo, Carlos E. (2001a), Geología de la Plancha 208 Villeta - 1:100,000 (PDF) , INGEOMINAS , pp. 1–84, retrieved 2017-03-16
Acosta Garay, Jorge; Ulloa Melo, Carlos E. (2001b), Geología de la Plancha 227 La Mesa - 1:100,000 , INGEOMINAS , pp. 1–80
Guerrero, Javier; Sarmiento, Gustavo; Navarrete, Rosa (2000), "The Stratigraphy of the W Side of the Cretaceous Colombian Basin in the Upper Magdalena Valley. Reevaluation of Selected Areas and Type Localities Including Aipe, Guaduas, Ortega, and Piedras" (PDF) , Geología Colombiana 25 , retrieved 2018-05-29
Páramo Fonseca , María Euridice (2013), "Eonatator coellensis nov. sp. (Squamata: Mosasauridae), a new species from the Upper Cretaceous of Colombia" (PDF) , Revista Académica Colombiana de Ciencias Naturales , XXXVII : 499–518, retrieved 2017-03-31
Reyes, Germán; Montoya, Diana; Terraza, Roberto; Fuquen, Jaime; Mayorga, Marcela; Gaona, Tatiana; Etayo, Fernando (2006), Geología del cinturón esmeraldífero occidental Planchas 169, 170, 189, 190 (PDF) , INGEOMINAS , pp. 1−114, retrieved 2018-05-13
Villamil, Tomas (2012), Chronology Relative Sea Level History and a New Sequence Stratigraphic Model for Basinal Cretaceous Facies of Colombia , Society for Sedimentary Geology (SEPM), pp. 161–216
Acosta, Jorge; Ulloa, Carlos; García, Pilar; Solano, Orlando (1999), Mapa Geológico de Cundinamarca INGEOMINAS , p. 1 , retrieved 2017-09-21
Marquínez, Germán; Velandia, Francisco (2001), Mapa Geológico del Huila 1:300,000 INGEOMINAS , p. 1 , retrieved 2017-09-21
Royero Gutiérrez, José María; Vargas Higuera, Rodrigo (1999), Mapa Geológico de Santander 1:300,000 INGEOMINAS , p. 1 , retrieved 2017-09-21
Ulloa, Carlos E; Rodríguez, Erasmo (2009), Plancha 170 - Vélez - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Various, Authors (2005), Plancha 189 - La Palma - 1:300,000 (PDF) , INGEOMINAS , p. 1 , retrieved 2018-05-13
Ulloa, Carlos; Acosta, Jorge (1998), Plancha 208 - Villeta - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Ulloa, Carlos E; Rodríguez, Erasmo; Acosta, Jorge E. (1998), Plancha 227 - La Mesa - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Acosta, Jorge E.; Guatame, Rafael; Torres, Oscar; Solano, Frank (1999), Plancha 245 - Girardot - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Acosta, Jorge E.; Ulloa, Carlos E. (1998), Plancha 246 - Fusagasugá - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Nuñez, Alberto; Mosquera, Dario; Vesga, Carlos J. (2009), Plancha 263 - Ortega - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Calcedo, Juan Carlos; Terraza, Roberto (2000), Plancha 264 - Espinal - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Acosta, Jorge; Calcedo, Juan Carlos; Ulloa, Carlos (1999), Plancha 265 - Icononzo - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Carvajal, Cesar; Fuquen, Jaime; Gómez, Luis (1993), Plancha 282 - Chaparral - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Cossio, Ubaldo; Rodríguez, Gabriel; Rodríguez, Miguel (1995), Plancha 283 - Purificación - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Fuquen, Jaime; Rodríguez, Gabriel; Cossio, Ubaldo; Núñez, Alberto (1993), Plancha 302 - Aipe - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Acosta, Jorge; Caro, Pablo; Fuquen, Jaime; Osorno, José (2002), Plancha 303 - Colombia - 1:100,000 , INGEOMINAS , p. 1
Ferreira, Paulina; Núñez, Alberto; Rodríguez, Miguel (1998), Plancha 323 - Neiva - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Marquínez, Germán; Morales, C.; Núñez, Alberto (1999), Plancha 344 - Tesalia - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Velandia, F.; Morales, C.J.; Caicedo, J.C.; Núñez, Alberto (1999), Plancha 345 - Campoalegre - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Rodríguez, Gabriel; Ferreira, Paulina; Velandia, Francisco; Núñez, Alberto (1998), Plancha 366 - Garzón - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
Rodríguez, Gabriel; Zapata, Gilberto; Velázquez, M. (2003), Plancha 389 - Timaná - 1:100,000 INGEOMINAS , p. 1 , retrieved 2017-06-06
External links [ edit ]
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=Oliní_Group&oldid=1232278863 " C a t e g o r i e s : ● G e o l o g i c g r o u p s o f S o u t h A m e r i c a ● G e o l o g i c f o r m a t i o n s o f C o l o m b i a ● C r e t a c e o u s C o l o m b i a ● U p p e r C r e t a c e o u s S e r i e s o f S o u t h A m e r i c a ● C o n i a c i a n S t a g e ● S a n t o n i a n S t a g e ● C a m p a n i a n S t a g e ● S i l t s t o n e f o r m a t i o n s ● M u d s t o n e f o r m a t i o n s ● C o n g l o m e r a t e f o r m a t i o n s ● S a n d s t o n e f o r m a t i o n s ● L i m e s t o n e f o r m a t i o n s ● C h e r t ● D e e p m a r i n e d e p o s i t s ● F o s s i l i f e r o u s s t r a t i g r a p h i c u n i t s o f S o u t h A m e r i c a ● P a l e o n t o l o g y i n C o l o m b i a ● G e o g r a p h y o f C u n d i n a m a r c a D e p a r t m e n t ● G e o g r a p h y o f B o y a c á D e p a r t m e n t ● G e o g r a p h y o f H u i l a D e p a r t m e n t ● G e o g r a p h y o f S a n t a n d e r D e p a r t m e n t ● G e o g r a p h y o f T o l i m a D e p a r t m e n t ● M a g d a l e n a R i v e r H i d d e n c a t e g o r i e s : ● P a g e s u s i n g g a d g e t W i k i M i n i A t l a s ● A r t i c l e s w i t h s h o r t d e s c r i p t i o n ● S h o r t d e s c r i p t i o n m a t c h e s W i k i d a t a ● C o o r d i n a t e s n o t o n W i k i d a t a ● A r t i c l e s c o n t a i n i n g S p a n i s h - l a n g u a g e t e x t
● T h i s p a g e w a s l a s t e d i t e d o n 2 J u l y 2 0 2 4 , a t 2 2 : 2 8 ( U T C ) . ● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n . ● P r i v a c y p o l i c y ● A b o u t W i k i p e d i a ● D i s c l a i m e r s ● C o n t a c t W i k i p e d i a ● C o d e o f C o n d u c t ● D e v e l o p e r s ● S t a t i s t i c s ● C o o k i e s t a t e m e n t ● M o b i l e v i e w
Colombia
Northern- and southernmost outcrops of the Oliní Group
Type locality
Geology of the Eastern Hills
Geology of the Ocetá Páramo
Geology of the Altiplano Cundiboyacense
