Title

New model for the emplacement, bioturbation, and preservation of fine-scaled sedimentary strata

Document Type

Article

Publication Date

8-1-2003

Abstract

We present a new quantitative model for the formation and preservation of sedimentary fabric based on interacting sedimentation and bioturbation. The model is one-dimensional and is forced by fluctuation of the sedimentation rate, which affects deposition of sediment possessing primary (depositional) fabric. Primary fabric is modified by bioturbation, which is represented as a depth-limited reaction term. Model output includes depth in seabed and preservation quotient, a measure of relative preservation of primary versus biogenic fabric at each depth. The required parameters (sedimentation rate and bioturbation rate) can be derived from studies of seabed processes; model output can be compared directly to observations of both modern and ancient sedimentary strata.

Publication Source (Journal or Book title)

Geology

First Page

725

Last Page

728

This document is currently not available here.

COinS