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Osa Peninsula

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Journal Article
Journal: Lithosphere
Published: 01 June 2013
Lithosphere (2013) 5 (3): 247-264.
... (i.e., the Fila Costeña thrust belt), and uplifted the magmatic arc. The Osa Peninsula, an outer forearc high ∼20 km inboard of the Middle America Trench and ∼3 km to ∼10 km above the plate interface at its trenchward edge, is deforming in response to variations in the bathymetry of the subducting...
FIGURES | View All (9)
Journal Article
Journal: GSA Bulletin
Published: 01 May 1990
GSA Bulletin (1990) 102 (5): 628-652.
... of these rocks indicates an average Quaternary uplift rate of ∼1 mm/yr. The turbidite section on the Burica Peninsula is interpreted to represent a trench-slope deposit and is correlated to a similar, marine sedimentary section on the adjacent Osa Peninsula of Costa Rica. Structures developed within Pliocene...
Series: GSA Special Papers
Published: 01 January 1995
DOI: 10.1130/SPE295-p1
.... The terrane is thought to represent an accreted, structurally high piece of a primitive island arc. The inner Osa Peninsula is formed by a thick pile of oceanic basalts including Late Cretaceous to Eocene sediments. The outer Osa Peninsula and the Caño Island are built by the Osa-Caño Accretionary Complex...
Image
Subsidence or uplift pattern for <b>Osa</b> <b>Peninsula</b> shelf (Central America) afte...
in > Geology
Published: 01 September 2013
Figure 3. Subsidence or uplift pattern for Osa Peninsula shelf (Central America) after backstripping stratigraphic column recovered at Integrated Ocean Drilling Program (IODP) Site 334-U1379. We conservatively estimate subsidence by sediment loading assuming Airy isostatic model ( Allen and Allen
Image
(A) Geology of the <b>Osa</b> <b>Peninsula</b>. Distribution of geologic units is modifie...
Published: 01 June 2013
Figure 4. (A) Geology of the Osa Peninsula. Distribution of geologic units is modified from Lew (1983) ; Barritt and Berrangé (1987) ; Coates et al. (1992) ; Gardner et al. (1992) ; Sak et al. (2004a) ; Vannucchi et al. (2006) ; Buchs and Baumgartner (2007) ; and field work in the central
Image
Geologic cross sections across the <b>Osa</b> <b>Peninsula</b>. A contains three radiomet...
Published: 01 June 2013
Figure 5. Geologic cross sections across the Osa Peninsula. A contains three radiometric ages for the Jimenez member ranging from 0.9 ka to 2.02 ka from Gardner et al. (1992) ; B contains 14 radiometric ages for the Tigre member ranging in age from 32.22 ka to >51.54 ka from Sak et al
Image
Sequence of illustrations showing the uplift of the <b>Osa</b> <b>Peninsula</b>: (A) at a...
Published: 01 June 2013
Figure 7. Sequence of illustrations showing the uplift of the Osa Peninsula: (A) at approximately marine isotope stage (MIS) 5.5, last interglacial highstand (ca. 125 ka); (B) approximately early MIS 3 (40–60 ka); (C) approximately late MIS 3 (30–40 ka); (D) approximately MIS 2 (15–20 ka); (E
Image
Figure 1. Depth-migrated seismic image near <b>Osa</b> <b>Peninsula</b> of Costa Rica, sh...
in > Geology
Published: 01 October 2004
Figure 1. Depth-migrated seismic image near Osa Peninsula of Costa Rica, showing loss of upper-plate reflection coherence in basement just upslope of frontal prism, basement's eroded upper surface, and unconformably overlying sediment. Note increasing normal-fault displacement as ocean crust
Series: GSA Special Papers
Published: 01 January 1995
DOI: 10.1130/SPE295-p291
... separates the seamount domain from a deep sea plain. These three contrasting oceanic seafloor morphologies are mimicked in the morphology of the Pacific continental margin of Costa Rica. Opposite the subducting Cocos Ridge are a broad continental shelf and Osa Peninsula, which are attributed to large-scale...
Series: DNAG, Geology of North America
Published: 01 January 1989
DOI: 10.1130/DNAG-GNA-N.523
EISBN: 9780813754659
... Abstract The Middle America Trench extends for roughly 3,000 km from the Tres Marias Islands off Mexico near the mouth of the Gulf of California southward to the Osa Peninsula in southwestern Costa Rica (Fig. 1 and Plate 1C). The Tamayo Fracture Zone, a transverse fracture zone associated...
Journal Article
Journal: GSA Bulletin
Published: 01 February 1992
GSA Bulletin (1992) 104 (2): 219-232.
... stratigraphy on the Península de Osa is subdivided into two major chronostratigraphic sequences from groupings of radiocarbon dates. Crustal uplift rates calculated from these sequences systematically decrease from 6.5 to 2.1 m/ka north-east across the peninsula. Deformation of the peninsula is modeled...
Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP328.17
EISBN: 9781862395763
... The basement rocks of the Osa Peninsula were seen for a long time to be part of the ‘Nicoya Complex’, an accreted oceanic plateau cropping out in the NW Nicoya Peninsula (e.g. Denyer & Baumgartner 2006 ; Bandini et al. 2008 ). However, strong incompatibilities between the Nicoya...
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Journal Article
Published: 01 April 2013
Journal of Sedimentary Research (2013) 83 (4): 309-322.
...M. Cinta Osácar; Concha Arenas; Marta Vázquez-Urbez; Carlos Sancho; Luis F. Auqué; Gonzalo Pardo A bstract : A 12-year study (2000–2012) of the stable isotopes of recent fluvial tufas has been performed in the Monasterio de Piedra Natural Park (River Piedra, NE Iberian Peninsula), an area...
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Journal Article
Journal: Geology
Published: 15 February 2018
Geology (2018) 46 (4): 367-370.
.... , 2009 , Late Cretaceous to Miocene seamount accretion and mélange formation in the Osa and Burica Peninsulas (Southern Costa Rica): Episodic growth of a convergent margin , in James , K.H. , ., eds., The Origin and Evolution of the Caribbean Plate : Geological Society of London Special...
FIGURES
Image
A: Geological map of <b>Osa</b> mélange from Bahia Drake (as shown in the figure) ...
in > Geology
Published: 15 February 2018
, 83°42′13.3″W). H: Dismembered chert and pelite with high-aspect ratio-blocks (*) in pelitic matrix (†) cut by minor fault (‡) (8°41′30.8″N, 83°40′18.0″W). I: Map of southern Central America showing location of Osa Peninsula in tectonic context and proximity to Middle America Subduction Zone, Cocos
Journal Article
Journal: Geology
Published: 01 May 2003
Geology (2003) 31 (5): 455-458.
... data from von Huene et al. (2000) ( Fig. 1 ). Near the Nicoya Peninsula, the oceanic crust is smooth with a 500-m-thick sediment blanket covering the plate ( von Huene et al., 1995 ). Offshore central Costa Rica, between the Nicoya and Osa Peninsulas, the seafloor is disrupted by many seamounts...
FIGURES
Journal Article
Published: 01 March 2010
Bulletin of Canadian Petroleum Geology (2010) 58 (1): 3-16.
... and deep overpressure, c) deep overpressure and d) underpressure profile. These four types of pressure profiles occur in different geographic regions. For wells in Tuktoyaktuk Peninsula and the southwest onshore areas, where strata are predominately Lower Cretaceous and older, normal gradients occur...
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Journal Article
Published: 01 December 2000
Bulletin of Canadian Petroleum Geology (2000) 48 (4): 323-338.
... effectively using combinations of surface mapping, and onshore and offshore reflection seismic surveys. The Hecla field adjacent to Sabine Peninsula, Melville Island has the strongest stratigraphic entrapment component. Fig. 1. a , Western Sverdrup Basin, Canadian Arctic Archipelago, indicating...
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Journal Article
Journal: Clay Minerals
Published: 01 March 2017
Clay Minerals (2017) 52 (1): 107-126.
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Series: Geological Society, London, Special Publications
Published: 01 January 2008
DOI: 10.1144/SP.308.1
EISBN: 9781862395565
... of charnockite were emplaced during metamorphism along the eastern margin of the Rayner Complex ( Young & Black 1991 ). The grade and timing of metamorphism and charnockitic magmatism, along with the nature of protolithic crust, are shared with the Eastern Ghats of the Indian peninsula, and the two terranes...
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