Paleocene-middle miocene flexural-margin migration of the nonmarine llanos foreland basin of Colombia
Abstract
A foreland basin is a dynamic system whose depositional systems migrate in response to changes in tectonic uplift patterns, sedimentary filling processes and isostatic rebound of the lithosphere. The Paleocene-middle Miocene foreland system of the Llanos foothills and Llanos basin of Colombia includes regional unconformities, abrupt changes in lithology/stacking patterns and flooding surfaces bounding reservoir and seal units. Here we integrate a systematic biostratigraphic study, stratal architecture and tectonic subsidence analyses, regional seismic profiles, and provenance data to define the diachronism of such surfaces and to document the direction of migration of foreland depozones. In a flexurally-deformed basin, sandstone composition, rates of accommodation and sediment supply vary across and along the basin. We show how a coeval depositional profile in the Llanos foothills-Llanos foreland basin consists of litharenites interbedded with mudstones (seal rock, supplied from the orogenic front to the west) that correlate cratonward with organic-rich mudstones and coal (source rock), and to amalgamated fluvial-estuarine quartzarenites (reservoir rock, supplied from the craton to the east) adjacent to a subaerial forebulge (unconformity). This system migrated northward and eastward during the Paleocene, westward during the early-middle Eocene, and eastward during the Oligocene. In the lower-middle Miocene succession of the Llanos basin, identification of flooding events indicates a westward encroaching of a shallow-water lacustrine system that covered an eastward-directed fluvial-deltaic system. A similar process has been documented in other basins in Venezuela and Bolivia, indicating the regional extent of such flooding event may be related to the onset of Andean-scale mountain-building processes.
References
Allen, P., & Allen, J. (1992). Basin analysis, principles and applications. London, Blackwell Scientific Publications.
Audemard, F. E., & Audemard, F.A. (2002). Structure of the Merida Andes, Venezuela: relations with the South America-Caribbean geodynamic interaction. Tectonophysics, 345 (1-4): 299-327. https://doi.org/10.1016/S0040-1951(01)00218-9
Baby, P., Rochat, P., Mascle, G., & Herail, G. (1997). Neogene shortening contribution to crustal thickening in the back arc of the Central Andes. Geology, 25 (10): 883-886. https://doi.org/10.1130/0091-7613(1997)025<0883:NSCTCT>2.3.CO;2
Bayona, G., Cortés, M., Aristizabal, J.J., Jaramillo, C., Ojeda, G., Reyes-Harker, A., Rueda, M., & Villamarín, P. (2006). Pinch out of upper cretaceous-oligocene reservoir units in the Llanos Basin of Colombia: a result of flexural deformation in a broken foreland. America Association of Petroleum Geologists, Annual Meeting, Abstract Volume, 8, Houston, USA.
Bayona, G., Cortés, M., Jaramillo, C., & Llinás, R.D., (2003). The Fusagasugá succession: a record of the complex Latest Cretaceous-pre-Miocene deformation between the Magdalena Valley and Sabana de Bogotá areas. VIII Simposio Bolivariano de Exploración en las Cuencas Subandinas, 180-193.
https://doi.org/10.3997/2214-4609-pdb.33.Paper73
Branquet, Y., Laumonier, B., Cheilletz, A., & Giuliani, G. (1999). Emeralds in the Eastern Cordillera of Colombia: two tectonic settings for one mineralization. Geology, 27 (7): 597-600. https://doi.org/10.1130/0091-7613(1999)027<0597:EITECO>2.3.CO;2
Cardona, P. J., & Gutiérrez, G. Z. (1995). Estratigrafía y ambientes de depósito de la formación Carbonera en un área al Noroeste de Yopal - Casanare (Colombia). Tesis de pregrado Fac.Ciencias, Universidad Nacional de Colombia, Bogota, 83 pp.
Cazier, E.C., Hayward, A.B., Espinosa, G., Velandia, J., Mugniot, J.F., & Leel, W. C. (1995). Petroleum geology of the Cusiana field, llanos basin foothills, Colombia. America Association of Petroleum Geologists Bulletin, 79 (10): 1444-1463. https://doi.org/10.1306/7834D9FE-1721-11D7-8645000102C1865D
Cediel, F., Shaw, R., & Cáceres, C. (2003). Tectonic assembly of the northern Andean block, in Bartolini, C., Buffler, R., & Blickwede, J., eds., The Circum-Gulf of Mexico and the Caribbean: hydrocarbon habitats, basin formation and plate tectonics, Colombia. America Association of Petroleum Geologists Memoir, 79: 815-848. https://doi.org/10.1306/M79877C37
Céspedes, S., & Peña, L. (1995). Relaciones estratigráficas y ambientes de depósito de las formaciones del terciario inferior aflorante entre Tunja y Paz del Río, Boyacá. Tesis de pregrado Fac. de Ciencias, Universidad Nacional de Colombia, Bogotá, 50 pp.
Coates, A. G., Collins, L. S., Aubry, M., & Berggren, W.A. (2004). The geology of the Darien, Panamá, and the late miocene-pliocene collision of the Panamá arc with northwestern South America. Geological Society of America, Bulletin, 116 (11-12): 1327-1344; doi: 10.1130/B25275.1.
https://doi.org/10.1130/B25275.1
Cooper, M. A., Addison, F.T., Alvarez, R., Coral, M., Graham, R.H., Hayward, A. B., Howe, S., Martínez, J., Naar, J., Peñas. R., Pulham, A. J., & Taborda, A. (1995). Basin development and tectonic history of the Llanos basin, eastern cordillera, and middle Magdalena Valley, Colombia. America Association of Petroleum Geologists, Bulletin, 79 (10): 1421-1443. https://doi.org/10.1306/M62593C35
Cortés, M., Bayona, G., Aristizabal, J., Ojeda, G., Reyes-Harker, A. & Gamban, N. (2006). Structure and kinematics of the eastern foothills of the eastern cordillera of colombia from balanced cross-sections and forward modelling. Asociación colombiana de geólogos y geofísicos del petróleo. Memorias del IX Simposio Bolivariano de Cuencas Subandinas, 14, in CD. https://doi.org/10.3997/2214-4609-pdb.111.118
Currie, B. (1997). Sequence stratigraphy of nonmarine Jurassic-Cretaceous rocks, Central Cordilleran foreland-basin system. Geological Society of America Bulletin. 109 (9): 1206-1222. https://doi.org/10.1130/0016-7606(1997)109<1206:SSONJC>2.3.CO;2
DeCelles, P., & Giles, K. (1996). Foreland basin systems. Basin Research, 8 (2): 105-123. https://doi.org/10.1046/j.1365-2117.1996.01491.x
Fabre, A. (1981). Estratigrafía de la Sierra Nevada del Cocuy, Boyacá y Arauca, Cordillera Oriental (Colombia). Geología Norandina, 4: 3-12.
Fabre, A. (1987). Tectonique et géneration d'hydrocarbures: un modèle de l'evolution de la Cordillère Orientale de Colombie et dubBassin de Llanos pendant le crétacé et le tertiaire. Archives des Sciences Genève, 40: 145-190.
Fajardo, A. (1995). 4-D Stratigraphic architecture and 3-D reservoir fluid-flow model of the Mirador formation, Cusiana field, foothills area of the Cordillera Oriental, Colombia. Master's Thesis, Colorado School of Mines, USA.
Fajardo, A., Rojas, E., Cristancho, J, & Consorcio G&G Going System, L. (2000). Definición del Modelo estratigráfico en el intervalo Cretáceo tardío a mioceno medio en la cuenca Llanos Orientales y Piedemonte llanero. Informe final, Ecopetrol S.A. - Instituto Colombiano del Petróleo (ICP).
Flemings, P.B., & Jordan, T.E. (1990). Stratigraphic modelling of foreland basins: Interpreting thrust deformation and lithosphere rheology. Geology, 18 (5): 430-434. https://doi.org/10.1130/0091-7613(1990)018<0430:SMOFBI>2.3.CO;2
Galloway, W. E. (1989). Genetic stratigraphic sequences in basin analysis in: architecture and genesis of flooding-surface bounded depositional units. America Association of Petroleum Geologists Bulletin, 73 (2): 125-142. https://doi.org/10.1306/703C9AF5-1707-11D7-8645000102C1865D
Geoestratos-Dunia (2003). Control geológico de campo del bloque Sirirí y áreas aledañas. Informe final, Ecopetrol S.A. - Instituto Colombiano del Petroleo (ICP), 181.
Gómez, E., Jordan, T., Allmendinger, R.W., & Cardozo, N. (2005a). Development of the Colombian foreland-basin system as a consequence of diachronous exhumation of the northern Andes. Geological Society of America Bulletin, 117 (9-10): 1272-1292; doi: 10.1130/B25456.1.
https://doi.org/10.1130/B25456.1
Gómez, E., Jordan, T., Allmendinger, R. W., Hegarty, K., & Kelley, S. (2005b). Syntectonic cenozoic sedimentation in the northern middle Magdalena valley basin of Colombia and implications for exhumation of the northern Andes. Geological Society of America Bulletin, 117 (5-6): 547-569.
https://doi.org/10.1130/B25454.1
Guerrero, J., & Sarmiento, G. (1996). Estratigrafía física, palinológica, sedimentológica y secuencial del cretácico superior y paleoceno del Piedemonte Llanero, implicaciones en exploración petrolera. Geología Colombiana, 20: 3-66.
Hambalek, N., Rull, V., De Digiacomo, E., & Diaz de Gamero, M.L. (1994). Evolución paleoecológica y paleoambiental de la secuencia del Neogeno en el surco de Urumaco: estudio palinológico y litológico. Boletín de la Sociedad Venezolana de Geología, 191: 7-19.
Haq, B.U., Hardenbol, J., & Vail, P. (1987). Chronology of fluctuating sea levels since the triassic. Science, 235:1156-1166. https://doi.org/10.1126/science.235.4793.1156
Holbrook, J., Scott, R.W., & Oboh-Ikuenobe, F. (2006). Base-level buffers and butresses: a model for upstream versus downstream control on fluvial geometry and architecture within sequences. Journal of Sedimentary Research, 76 (1): 162-174. https://doi.org/10.2110/jsr.2005.10
Hoorn, C., Guerrero, J., Sarmiento, G.A., & Lorente, M.A. (1995). Andean tectonics as a cause for changing drainage patterns in Miocene northern South America. Geology, 23 (3): 237-240. https://doi.org/10.1130/0091-7613(1995)023<0237:ATAACF>2.3.CO;2
Jaramillo, C. (1999). Middle paleogene palynology of Colombia, South America: Biostratigraphic, sequence stratigraphic and diversity implications. Ph. D. Thesis, University of Florida, USA.
Jaramillo, C. (2002). Response of tropical vegetation to paleogene warming. Paleobiology, 28: 222-243. https://doi.org/10.1666/0094-8373(2002)028<0222:ROTVTP>2.0.CO;2
Jaramillo, C., & Dilcher, D.L. (2001). Middle paleogene palynology of central Colombia, South America: A study of pollen and spores from tropical latitudes. Palaeontographica B, 258: 87-213. https://doi.org/10.1127/palb/258/2001/87
Jaramillo, C., Muñoz, F., Cogollo, M., & Parra, F. (2005). Quantitative biostratigraphy for the Cuervos formation (paleocene) of the llanos foothills, Colombia: Improving palynological resolution for oil exploration, in Powell, A.J., & Riding, J.B., eds., recent developments in Applied Biostratigraphy. The Micropalaeontological Society, Special Publications, 145-159. https://doi.org/10.1144/TMS001.9
Jaramillo, C., Rueda, M., & Mora, G. (2006). Cenozoic plant diversity in the neotropics. Science, 311 (5769):1893-1896. https://doi.org/10.1126/science.1121380
Jaramillo, C., & Rueda, M. (2004). Impact of biostratigraphy on oil exploration. Memorias de la tercera convencion técnica de la Asociación Colombiana de Geólogos y Geofísicos del Petróleo, 7, Bogotá, Colombia.
Jaramillo, C., Rueda, M., Bayona, G., Santos, C., Flórez, & Parra, F. (2007). Biostratigraphy breaking paradigms. The absence of the eocene Mirador formation in the eastern llanos of Colombia. SEPM Special issue. Biostratigraphic Applications.
Jaramillo, L., Roa, E., & Torres, M. (1993). Relaciones estratigráficas entre las unidades arenosas del paleógeno (paleoceno) del Piedemonte llanero y la parte media de la cordillera oriental. Tesis de Pregrado Fac.Ciencias,, Universidad Nacional de Colombia, Bogotá, 40 pp.
Marshall, L.G., & Lundberg, J.G. (1996). Miocene deposits in the Amazonian foreland basin (technical comments). Science, 273 (5271): 123-124.
https://doi.org/10.1126/science.273.5271.123.b
Mesa, A. (1997). Diagenesis and reservoir quality of the Guadalupe, Barco and Mirador formations (Campanean to Eocene), Llanos basin, Colombia. Ph. D. Thesis, Johannes Gutenberg Universitat, Mainz, Germany, 141 pp.
Mesa, A. (2003). Descripción petrológica de muestras de zanja del pozo Gibraltar 1, ST-3 y ST-5 durante las actividades de perforación. Informe final, Ecopetrol S.A. - Instituto Colombiano del Petróleo (ICP).
Mesa, A. (2004). Descripción detallada petrográfica del pozo Gibraltar 2. Informe final, Ecopetrol S.A. - Instituto Colombiano del Petróleo (ICP).
Mora, A., & Parra, M. (2004). Secciones estratigráficas de las formaciones Guadalupe, Barco y Carbonera, anticlinal del Guavio, Piedecuesta. Informe final, Instituto Colombiano del Petróleo, 28 pp.
Mora, A., Parra, M., Strecker, M.R., Kammer, A., Dimate, C., & Rodríguez, F. (2006). Cenozoic contractional reactivation of Mesozoic extensional structures in the Eastern Cordillera of Colombia. Tectonics, 25. TC2010, doi:10.1029/2005TC001854. https://doi.org/10.1029/2005TC001854
Moreno, J., & Velásquez. M. (1993). Estratigrafía y tectónica en los alrededores del municipio de Nuchia departamento de Casanare, Colombia. Tesis de Pregrado Fac. Ciencias, Universidad Nacional de Colombia, Bogotá.
Ojeda, G. Bayona, G., Pinilla, J., Cortés, M., & Gamba, N. (2006). Subsidence and geodynamic analysis of The Llanos Basin. Linking mountain building and basin filling processes. Asociación Colombiana de Geólogos y Geofísicos del Petróleo, Memorias del IX Simposio Bolivariano de Cuencas Subandinas, in CD.
https://doi.org/10.3997/2214-4609-pdb.111.125
Pardo, A. (2004). Paleocene-eocene palynology and palynofacies from northeastern Colombia and western Venezuela. Ph. D. Thesis, Universite de Liege, 103 pp.
Pulham, A. J., Mitchell, A., MacDonald, D., & Daly, C. (1997). Reservoir modeling in the Cusiana field, llanos foothills, Eastern Cordillera: characterization of a deeply-buried, low-porosity reservoir. VII Simposio Bolivariano, 198-216. https://doi.org/10.3997/2214-4609-pdb.117.016eng
Ramón, J.C., & Cross, T.A. (1997). Characterization and prediction of reservoir architecture and petrophysical properties in fluvial channel sandstones, Middle Magdalena Basin, Colombia. CT&F - Ciencia, Technología y Futuro, 1 (3): 19-46.
Restrepo-Pace, P., Colmenares, F., Higuera, C., & Moyorga, M. (2004). A fold-and-thrust belt along the western flank of the Eastern Cordillera of Colombia - Style, kinematics, and timing constraints derived from seismic data and detailed surface mapping, in McClay, K., ed., Thrust tectonics and hydrocarbon systems, Colombia. America Association of Petroleum Geologists Memoir, 82: 598-613. https://doi.org/10.1306/M82813C31
Reyes, A. (1996). Sedimentology and stratigraphy and its control on porosity and permeability Barco formation, Cusiana field, Colombia. Master's thesis, University of Reading, Postgraduate Research Institute of Sedimentology, 70 pp.
Reyes, A. (2004). Taller corazón Gibraltar-2: Bucaramanga. Reporte Interno, Ecopetrol S.A.
Reyes, I., & Valentino, M.T. (1976). Geología del yacimiento y variabilidad de las características geoquímicas del mineral de hierro en la región de Paz Vieja (municipio de Paz del Río, departamento de Boyacá). Primer Congreso Colombiano de Geología, Memorias, Bogotá, Colombia, 267-324.
Reyes, J., Silva, M., Munar, F., Lasso, A., Bohórquez, J., Valderrama, J., Cadena, A., Velasco, J., Rendón, A., & Blanco, N. (1991). Objetivos Estratigráficos en la subcuenca Apiay-Ariari. Memorias del IV Simposio Bolivariano, Bogotá, Colombia, 27. https://doi.org/10.3997/2214-4609-pdb.115.011esp
Rogers, R.R. (1994). Nature and origin of through-going dicontinuities in nonmarine foreland basin strata, upper cretaceous, Montana. Implications for aequence Analysis. Geology, 22: 1119-1122. https://doi.org/10.1130/0091-7613(1994)022<1119:NAOOTG>2.3.CO;2
Sarmiento-Rojas, L.F. (2001). Mesozoic rifting and cenozoic basin inversion history of the Eastern Cordillera, Colombian Andes, Inferences from tectonic models. Bogotá, Ecopetrol-Netherlands research, School of Sedimentary Geology, 295.
Toro, J., Roure, F., Bordas-Le Flonch, N., Le Cornec-Lance, S., & Sassu, W. (2004). Thermal and kinematic evolution of the Eastern Cordillera fold and thrust belt, Colombia, in Swennen, R., Roure, F., and Granath, J.W., eds., Deformation, fluid flow, and reservoir appraisal in foreland fold and thrust belt Colombia. America Association of Petroleum Geologists Hedberg Series, 1: 79- 115.
Uba, C., Heubeck. C., & Hulka, C. (2005). Facies analysis and basin architecture of the Neogene Subandean synorogenic wedge, southern Bolivia. Sedimentary Geology, 180 (3-4): 91-123. https://doi.org/10.1016/j.sedgeo.2005.06.013
Vail, P.R., Mitchum, R.M.J., & Thompson, S.I. (1977). Seismic stratigraphy and global changes of sea level, part 3, relative changes of sea level from coastal onlap, in Payton, C.E., ed., Seismic stratigraphy - applications to hydrocarbon exploration. American Association of Petroleum Geologists Memoir, 26: 63-81.
Van Wagoner, J., Mitchum, R.M.J., Campion, K., & Rahmanain, V. (1990). Siliciclastic sequence stratigraphy, in well logs, cores, and outcrops; concepts for high resolution correlation of time and facies. Methods in exploration series 7, Colombia. America Association of Petroleum Geologists, 55.
https://doi.org/10.1306/Mth7510
Vergara, L., & Rodríguez, G. (1996). Consideraciones sobre la petrografía y diagénesis de los grupo Guadalupe (Cordillera Oriental) y Palmichal (Piedemonte Llanero). Geología Colombiana, 21: 41-63.
Warren, E.A., & Pulham, A.J. (2001). Anomalous porosity and permeability preservation in deeply buried tertiary and mesozoic sandstones in the cusiana field, llanos foothills, colombia. Journal of Sedimentary Research, 71 (1): 2-14. https://doi.org/10.1306/081799710002
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