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western Venezuela

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Journal Article
Journal: Interpretation
Published: 20 November 2020
Interpretation (2020) 8 (4): ST49–ST67.
...Javier Sanchez; Paul Mann Abstract The Maracaibo block is a triangular, continental tectonic terrane that includes two isolated Andean ranges of northern Colombia and western Venezuela: the Sierra de Santa Marta Massif (SSMM; maximum elevation 5700 m) in the west and the Perija Range (PR; 3600 m...
Journal Article
Published: 01 April 2011
Bulletin of the Seismological Society of America (2011) 101 (2): 495–505.
... with depths less than 40 km and the second for subduction events. The models are applied to Colombia and western Venezuela. 31 August 2009 Risk analysis has been historically based on intensity-related models ( Steinbrugge, 1982 ; Applied Technology Council, 1985 ; McGuire, 2004 ) because...
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Journal Article
Journal: Palynology
Published: 01 February 2009
Palynology (2009) 33 (2): 55–61.
...DAVID T. POCKNALL; DAVID M. JARZEN Abstract Fossil pollen exhibiting viscin threads are reported from Upper Cretaceous and Paleocene deposits in western Venezuela. The sediments were deposited in a marginal marine environment in an area presently occupied by the northern flank of the Venezuelan...
FIGURES
Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP328.27
EISBN: 9781862395763
... Abstract A period of structuring, uplift, non-deposition and/or erosion in the Campanian in Western Venezuela, different from the generally known Late Cretaceous event is proposed to explain: (1) a varying time gap (10 to 1 million years) from east to west across the Maracaibo basin between La...
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Journal Article
Journal: AAPG Bulletin
Published: 01 May 2007
AAPG Bulletin (2007) 91 (5): 653–684.
...David Gorney; Alejandro Escalona; Paul Mann; M. Beatrice Magnani; BOLIVAR Study Group Abstract Newly acquired, deep-penetration Broadband Onshore-Offshore Lithospheric Investigation of Venezuela and the Antilles Arc Region seismic reflection data from offshore western Venezuela (Bonaire Basin...
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Journal Article
Journal: AAPG Bulletin
Published: 01 April 2006
AAPG Bulletin (2006) 90 (4): 445–477.
...Paul Mann; Alejandro Escalona; María Verónica Castillo Abstract This special issue contains eight topical studies on the structure, stratigraphy, and petroleum system of the Maracaibo Basin, a supergiant basin in western Venezuela. Most of the work reported in this special issue is the product...
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Journal Article
Journal: AAPG Bulletin
Published: 01 April 2006
AAPG Bulletin (2006) 90 (4): 625–655.
... and Falcón basins, and by integrating these observations with regional paleogeographic evidence. The Maracaibo Basin is located in western Venezuela and covers a surface area of approximately 50,000 km 2 (19,300 mi 2 ). It is bounded to the west by the Sierra de Perijá mountain range, to the south...
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Journal Article
Journal: PALAIOS
Published: 01 October 2003
PALAIOS (2003) 18 (4-5): 321–333.
.... (A) General lithologic characteristics of Late Cretaceous units in Western Venezuela. (B) Stratigraphy of Late Cretaceous in the Western Venezuelan Basin. (C) Distribution of outcrops of the Tres Esquinas Member in western Venezuela. Modified from III Léxico Estratigráfico Venezolano ( http://www.pdv.com...
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Journal Article
Journal: PALAIOS
Published: 01 October 2003
PALAIOS (2003) 18 (4-5): 349–366.
... on a cored borehole and five outcrop sections distributed across the Maracaibo Basin of western Venezuela. Planktic foraminifera have fair to good preservation, and nannofossils are poorly preserved. Many of the Cenomanian to Campanian planktic foraminiferal marker species are present, permitting...
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Journal Article
Journal: PALAIOS
Published: 01 October 2003
PALAIOS (2003) 18 (4-5): 367–377.
.... Glauconite is the most important component and is present as angular grains, commonly replacing the phosphate. 01 06 2003 Society for Sedimentary Geology 2003 The Late Cretaceous La Luna Formation is the main hydrocarbon source rock in western Venezuela, and possibly one of the most...
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Series: AAPG Memoir
Published: 01 January 2003
DOI: 10.1306/M79877C32
EISBN: 9781629810546
... and western Venezuela, the regional subsidence associated with diminished plate-tectonic convergence, and the associated increase of accommodation space. The inversion of the Eastern Cordillera and the development of doubly verging thrust belts bounding the mountain belt explain the formation of most traps...
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Journal Article
Journal: AAPG Bulletin
Published: 01 July 2002
AAPG Bulletin (2002) 86 (7): 1263–1284.
... et al. (1995) divided the stratigraphic column of western Venezuela into five sequences based on tectonic events: (1) a Jurassic rift sequence, (2) an Early-Late Cretaceous passive margin succession, (3) Late Cretaceous-early Paleocene deposits corresponding to a passive margin behind a compressive...
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Journal Article
Published: 01 March 2002
Bulletin of Canadian Petroleum Geology (2002) 50 (1): 3–30.
...M. Toro Milano; R.J. Steel Abstract The Maracaibo Basin in northwestern Venezuela, one of the most prolific oil-producing areas in the world, is a composite foreland basin limited by foredeeps both to the south and west, as well as by piggy-back basins and half-grabens in the east. The western...
Series: AAPG Studies in Geology
Published: 01 January 2002
DOI: 10.1306/St48794C15
EISBN: 9781629810591
... Abstract A soil-gas survey was conducted over a number of prospects in the plains (“llanos”) and the Andean foothills regions in the Barinas-Apure Basin of western Venezuela. Initial attempts to numerically distinguish a seep-gas signal from background gases failed. Basic statistics allow only...
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Journal Article
Published: 01 December 2001
Journal of Micropalaeontology (2001) 20 (2): 123–125.
...CRAIG HARVEY Abstract Upper Devonian sediments from western Venezuela have yielded palynomorphs that exhibit the palynomorph re-darkening and cracking phenomenon during post-oxidation mounting. A preparation technique has been developed, utilizing a diluted Schultze solution for prolonged periods...
FIGURES
Journal Article
Journal: Palynology
Published: 01 January 2001
Palynology (2001) 25 (1): 109–126.
...VALENTÍ RULL Abstract The quantitative reconstruction presented in this paper documents paleoecological trends of the northern Maracaibo basin (western Venezuela), during the Early Miocene, through pollen analysis of drill core samples from the La Rosa (shallow marine) and Lagunillas (coastal...
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Journal Article
Journal: AAPG Bulletin
Published: 01 July 1998
AAPG Bulletin (1998) 82 (7): 757–772.
..., sequence boundaries will be found in intervals with upward-decreasing values of PMI, whereas maximum flooding surfaces usually will be near the maximum values of PMI in each sequence. The Barinas-Apure basin in western Venezuela is located northwest of the Guyana shield and south of the Venezuelan...
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Series: SEPM Gulf Coast Section Publications
Published: 01 December 1997
DOI: 10.5724/gcs.97.18.0093
EISBN: 978-1-944966-31-7
... Formation. Transgressive marine/tidal bars within the Carbonera Formation also have favorable reservoir characteristics. Productivity of the best Eocene reservoirs is generally high. INTRODUCTION The Maracaibo Basin of western Venezuela has historically been one of the largest oil producing basins...
Journal Article
Journal: Palynology
Published: 01 October 1997
Palynology (1997) 21 (1): 213–229.
Series: AAPG Memoir
Published: 01 January 1995
DOI: 10.1306/M62593C37
EISBN: 9781629810836
... Abstract The sedimentary basins of western Venezuela contain large volumes of oil. However, most of the large structures have already been produced. Exploration for new reserves of light and medium oil now depends on integrated studies that lead to a more comprehensive basin evaluation...