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Oca Fault

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Journal Article
Journal: AAPG Bulletin
Published: 01 September 1962
AAPG Bulletin (1962) 46 (9): 1565–1595.
... the longitudinal faults in the northern part of the range, and emerge into the Maracaibo Basin. Crossing through the southern and south-central part of the range is a system of transverse faults related to the Arena Blanca trend defined in the César Valley. The east-trending transverse Oca fault system crosses...
FIGURES | View All (20)
Series: GSA Memoirs
Published: 01 January 1984
DOI: 10.1130/MEM162-p161
... zone extending from the southern Para-guaná Peninsula across the Gulf of Venezuela and south of the pre-Tertiary outcrops on the Guajira Peninsula. South of this fault zone and on the west is the Perijá province (northeasterly trends) and on the east the Coro province (northwesterly trends). The Oca...
Image
—Stereopair showing traces of <b>Oca</b> <b>faulting</b> across stranded Sinamaica-age be...
Published: 01 September 1962
Fig. 15. —Stereopair showing traces of Oca faulting across stranded Sinamaica-age beaches.
Series: SEPM Special Publication, SEPM Special Publication
Published: 01 January 1998
DOI: 10.2110/pec.98.58.0045
EISBN: 9781565761810
...-west dextral strike slip faults, such as the Oca and El Pilar faults, and south-southeast ward-directed thrust nappes. The nappes loaded the South American craton to generate a coupled flexural foreland basin and peripheral bulge that migrated eastwards. At any time during this evolution, the zone...
Journal Article
Journal: GSA Bulletin
Published: 01 February 1974
GSA Bulletin (1974) 85 (2): 273–284.
.... The triangular Sierra Nevada massif is bounded by the Oca fault, Santa Marta–Bucaramanga fault, and Cesar lineament. During the Tertiary, dextral and sinistral movement of 65 and 110 km, respectively, occurred along the Oca and Santa Marta–Bucaramanga faults; subsequently, several thousand meters of uplift...
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1961
AAPG Bulletin (1961) 45 (3): 410–411.
... tectonic feature of northern Venezuela is a series of long east-west-trending right-lateral wrench faults that are located close to and roughly parallel with the coast. Best known of these are the Oca fault in the west and the Pilar fault in the east. It is possible that these faults are at least as old...
Series: AAPG Memoir, AAPG Memoir
Published: 01 January 1963
DOI: 10.1306/M2358.C8
EISBN: 9781629812359
... faults, that are located close, and roughly parallel, to the coast. Best known of these are the Oca fault in the west and the Pilar fault in the east. It is possible that these faults are at least as old as Cretaceous, that they are related to the tectonic history of the general Caribbean area...
Series: GSA Memoirs
Published: 01 January 1984
DOI: 10.1130/MEM162-p217
... The Falcón Basin in northwestern Venezuela and adjacent offshore basins developed within a zone of extensional tectonics during Oligocene and Miocene times. Extension resulted from right-lateral motion along offset, east-west-trending, transcurrent faults, including the Oca fault in western...
Journal Article
Journal: GSA Bulletin
Published: 01 September 1973
GSA Bulletin (1973) 84 (9): 2905–2916.
... characterize the Santa Marta and Oca faults on the west and north sides of the massif, respectively. In the Guajira Peninsula region, Bouguer anomalies increase to +105 mgals over a serpentinite zone at Cabo de la Vela and to +55 mgals over Cretaceous volcanic rocks in the southern peninsula. Two smaller...
Journal Article
Journal: GSA Bulletin
Published: 06 September 2017
GSA Bulletin (2018) 130 (3-4): 355–380.
... occupying the southern hanging-wall block of the Oca fault. The western sequence consists of ∼1200-m-thick conglomeratic gravity deposits that define a progradational Gilbert-type delta emanating from a scarp coinciding with the present Santa Marta–Bucaramanga fault. By its stratigraphic and structural...
FIGURES | View All (16)
Series: GSA Memoirs
Published: 01 January 1984
DOI: 10.1130/MEM162-p239
...-slip movement of 90 to 100 km on the Oca fault and left-lateral oblique-slip movement of 100 km on the Santa Marta fault were caused by late Tertiary overthrusting in the Sierra de Perijá and Santa Marta massif. The northwest-southeast shortening that uplifted the Santa Marta massif, Sierra de Perijá...
Series: AAPG Memoir, AAPG Memoir
Published: 01 January 1995
DOI: 10.1306/M62593C41
EISBN: 9781629810836
... occurred south of the Golfo Triste, in a pull-apart area created by the right-lateral displacement of the Boconó and Oca faults. ...
Series: AAPG Memoir, AAPG Memoir
Published: 01 January 1991
DOI: 10.1306/M52531C11
EISBN: 9781629811147
... anticlinorium, includes east-northeast- striking parallel folds located in the center of the basin. The third structural system encompasses the active east-striking right-lateral strike-slip faults of which the Oca fault is the most relevant, owing to its regional extent. The stratigraphic discontinuity within...
Image
—Diagram relating movements on <b>Oca</b> and Tigre <b>faults</b> to associated tectonic ...
Published: 01 September 1962
Fig. 13. —Diagram relating movements on Oca and Tigre faults to associated tectonic pattern. Drawing illustrates how right-lateral movement on Oca fault causes structural crowding along fault where its trend is strongly eastward, and gives rise to structural collapse where fault bends southward
Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2010
DOI: 10.1144/SP340.15
EISBN: 9781862395886
... relationships in each zone. In Stepanavan (Fig.  8 a, b), ophiolite sections exhibit abundant serpentinites, cross-cut by normal fault and shear zones in which gabbronorites, gabbros and plagiogranites are intrusive and deformed. Laterally, thick layers of pillow basalts are observed which interlayer...
FIGURES | View All (14)
Series: GSA Field Guides
Published: 04 September 2019
DOI: 10.1130/2019.0055(08)
EISBN: 9780813756554
... and Smith, 1984 ; Sawlan, 1981 ; Aguillón-Robles et al., 2001 ; Benoit et al., 2002 ; Calmus et al., 2003 ; Conly et al., 2005 ). This transition developed a main dextral NNW-SSE Riedel shear, and N-S faults induced by the NW-SE dextral strike-slip faults along the Gulf of California ( Angelier et al...
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Journal Article
Published: 01 July 2011
Bulletin de la Société Géologique de France (2011) 182 (4): 323–336.
... for the Alps – Ligurian basin junction, we investigated this area to provide a record of earthquakes that have recently occurred near the city of Nice. Although no historical seismicity has been indicated for the lower Var valley, our main objective was to identify traces of recent faulting and to discuss...
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Series: AAPG Memoir, AAPG Memoir
Published: 01 January 2015
DOI: 10.1306/13531935M1083641
EISBN: 9781629812724
... between 80 km (50 mi) and 100 km (62 mi) was obtained by restoring offsets of magnetic features displaced by the Oca strike-slip fault ( Figure 6 ). The observed right-lateral offsets agree with offset amounts reported by Kellogg (1984) and Pindell et al. (1998) based on surface geologic mapping...
FIGURES | View All (9)
Image
—Geographic setting and structural relation of the El Pilar, Boconó, <b>Oca</b>, a...
Published: 01 August 1971
Fig. 4. —Geographic setting and structural relation of the El Pilar, Boconó, Oca, and Santa Marta faults. Modified after Alberding (1957) and Campbell (1965).
Journal Article
Published: 01 July 2002
Geological Magazine (2002) 139 (4): 473–487.
... from northwest and southeast were identified. The marginal facies to the northwest is bounded by a N 55° E-running structural lineament, that starts from the Ecemiş Fault Zone and in digital elevation models extends toward the north of the study area. Along this lineament, Miocene sediments onlap...
FIGURES | View All (10)