Characterization of channels on ancient and modern slopes: Cretaceous Tres Pasos Formation, Chile and Lucia Chica Channel System, offshore California
Abstract
Deep-water strata of the outcropping Upper Cretaceous-Paleogene Tres Pasos and Dorotea formations, Chilean Patagonia, elucidate deep-marine sedimentation processes that occur on submarine slopes. Sedimentology and stratigraphic architecture of the outcropping deep-water deposits along a high-relief paleoslope profile are examined with respect to their coeval shelf deposits, providing a comprehensive evaluation of the longitudinal variation in sedimentary processes downslope. Exceptional exposures of the deep-water system allow for 3-D reconstruction of slope channel deposits. In addition, slope channel morphologies are evaluated from high-resolution bathymetry data of the Lucia Chica Channel System, offshore central California. Derived morphometric information from the modern mid-slope channel system is utilized to hone an architectural model of the ancient slope channel fill succession exposed in southern Chile. Both investigations provide insight into deep-marine channel processes and provide high-resolution information that can inform reservoir models of analogous slope channel systems on continental margins globally.
Description
Keywords
Geology
Citation
Reimchen, A. (2016). Characterization of channels on ancient and modern slopes: Cretaceous Tres Pasos Formation, Chile and Lucia Chica Channel System, offshore California (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/25271