Geological stratigraphy and spatial distribution of microfractures over the Costa Rica convergent margin, Central America – a wavelet-fractal analysis

Singh, Upendra K.; Prajapati, Rahul; Kumar, Thinesh

doi:https://doi.org/10.5194/gi-7-179-2018

Articles | Volume 7, issue 2

https://doi.org/10.5194/gi-7-179-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/gi-7-179-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 7, issue 2

Research article

|

18 Jun 2018

Research article |

| 18 Jun 2018

Geological stratigraphy and spatial distribution of microfractures over the Costa Rica convergent margin, Central America – a wavelet-fractal analysis

Upendra K. Singh, Rahul Prajapati, and Thinesh Kumar

Data sets

Prel. 308 Integrated Ocean Drilling Program (IODP) https://doi.org/10.2204/iodp.pr.308.2005

Short summary

CWT was applied for lithology detection over the Costa Rica margin, using gamma ray logs as a best indicator. It is observed that four major sedimentary layers terminated there with a gabbroic sill. DWT was applied on density logs to identify small changes in the rock matrix. Accordingly, wavelet-based fractal analysis was applied on every sedimentary layer. This analysis indicates that a certain portion of wells contain abundant shale and low-energy environments.