Leg 205 Synthesis: Subduction Fluxes and Fluid Flow across the Costa Rica Convergent Margin

2006 ◽  
Author(s):  
J.D. Morris ◽  
H.W. Villinger
Keyword(s):  
Fluid Flow ◽  
Costa Rica ◽  
Convergent Margin

scholarly journals Geological Stratigraphy and Spatial Distribution of Microfractures over Costa Rica Convergent Margin, Central America – A Wavelet-Fractal Analysis

2016 ◽  
Author(s):  
Upendra K. Singh ◽  
Thinesh Kumar ◽  
Rahul Prajapati
Keyword(s):  
Fractal Dimension ◽  
Wavelet Transform ◽  
Costa Rica ◽  
Central America ◽  
Gamma Ray ◽  
Total Porosity ◽  
Discrete Wavelet ◽  
Mathematical Tool ◽  
Convergent Margin ◽  
Frequency Scale

Abstract. Identification of spatial variation of lithology, as a function of position and scale, is very critical job for lithology modelling in industry. Wavelet Transform (WT) is an efficacious and powerful mathematical tool for time (position) and frequency (scale) localization. It has numerous advantages over Fourier Transform (FT) to obtain frequency and time information of a signal. Initially Continuous Wavelet Transform (CWT) is applied on gamma ray logs of two different Well sites (Well-1039 & Well-1043) of Costa Rica Convergent Margin, Central America for identifications of lithofacies distribution and fracture zone later Discrete Wavelet Transform (DWT) applied to DPHI log signals to show its efficiency in discriminating small changes along the rock matrix irrespective of the instantaneous magnitude to represent the fracture contribution from the total porosity recorded. Further the data of the appropriate depths partitioned using above mathematical tools are utilized separately for WBFA. As consequences of CWT operation it is found that there are four major sedimentary layers terminated with a concordant igneous intrusion passing through both the wells. In addition of WBFA analysis, it is clearly understanding that the fractal dimension value is persistent in first sedimentary layers and the last gabbroic sill intrusions. Inconsistent value of fractal dimension is attributed to fracture dominant in intermediate sedimentary layers it is also validate through core analysis. Fractal Dimension values suggest that the sedimentary environments persisting in that well locations bears abundant shale content and of low energy environments.

scholarly journals Revised tectonic boundaries in the Cocos Plate off Costa Rica: Implications for the segmentation of the convergent margin and for plate tectonic models

2001 ◽  
Vol 106 (B9) ◽  
pp. 19207-19220 ◽  
Author(s):  
Udo Barckhausen ◽  
Cesar R. Ranero ◽  
R. von Huene ◽  
Steven C. Cande ◽  
Hans A. Roeser
Keyword(s):  
Costa Rica ◽  
Plate Tectonic ◽  
Cocos Plate ◽  
Convergent Margin ◽  
Tectonic Boundaries

scholarly journals Plio‐Quaternary Outer Forearc Deformation and Mass Balance of the Southern Costa Rica Convergent Margin

2019 ◽  
Vol 124 (9) ◽  
pp. 9795-9815 ◽  
Author(s):  
Kristin D. Morell ◽  
Donald M. Fisher ◽  
Nathan Bangs
Keyword(s):  
Costa Rica ◽  
Mass Balance ◽  
Convergent Margin

scholarly journals Late Cretaceous to Miocene seamount accretion and mélange formation in the Osa and Burica Peninsulas (Southern Costa Rica): episodic growth of a convergent margin

2009 ◽  
Vol 328 (1) ◽  
pp. 411-456 ◽  
Author(s):  
David Marc Buchs ◽  
Peter Oliver Baumgartner ◽  
Claudia Baumgartner-Mora ◽  
Alexandre Nicolas Bandini ◽  
Sarah-Jane Jackett ◽  
...  
Keyword(s):  
Costa Rica ◽  
Late Cretaceous ◽  
Convergent Margin ◽  
Episodic Growth
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