Near-surface sh-wave seismic reflection imaging and inversion: An analysis of a mississippi holocene point-bar

Document Type

Conference Proceeding

Publication Date

1-1-2020

Abstract

We image a Holocene-age point-bar adjacent to the Mississippi River at False River, Louisiana, using horizontally polarized (SH) waves. We also analyze the architectural and shear impedance characteristics associated with the early-stage, diagenetic development of a complex paleo-fluvial environment. Electrical conductivity (EC) well-logs from previous sedimentological research are incorporated to match shear-impedance (SI) patterns across different sediment packages (i.e. clay- and sand-rich facies). Seismic cross-sections show dipping and non-dipping horizons that correspond to various architectural elements seen in the upper portions of point-bar models. A comparison of depth-converted profiles against EC logs suggest that SI increases often correspond to clay--rich facies.

Publication Source (Journal or Book title)

Seg Technical Program Expanded Abstracts

First Page

2029

Last Page

2033

This document is currently not available here.

Share

COinS