Three-dimensional anatomy of a Cretaceous river avulsion

Three-dimensional anatomy of a Cretaceous river avulsion

Three-dimensional analysis of a Cretaceous river avulsion node reveals the anatomy of channel evolution and provides insights into ancient fluvial processes on Earth and Mars

December 1, 2024 · C. M. Speed, Z. Sylvester, P. R. Durkin, P. P. Flaig
Meandering streamflows across landscapes and scales: a review and discussion

Meandering streamflows across landscapes and scales: a review and discussion

This introductory chapter reviews the history of research on meandering streams and presents a compilation of data on meander morphology.

July 11, 2024 · A. Finotello, P. R. Durkin, Z. Sylvester
The impact of post-cutoff bend curvature on channel kinematics in meandering rivers: an example from the Trinity River, Texas, USA

The impact of post-cutoff bend curvature on channel kinematics in meandering rivers: an example from the Trinity River, Texas, USA

This paper investigates the relationship between post-cutoff bend curvature and channel kinematics in meandering rivers using Trinity River data.

June 1, 2024 · C. M. Speed, Z. Sylvester, P. D. Morris, D. Mohrig
A frozen history of meandering: Mapping and modeling ice-wedge polygons on point bars

A frozen history of meandering: Mapping and modeling ice-wedge polygons on point bars

A number of meandering rivers in the Arctic, especially in Siberia, have point bars with strikingly structured permafrost polygon patterns. We use a Unet-type convolutional neural network to map the polygons.

November 9, 2023 · Z. Sylvester
Autogenic translation and counter point bar deposition in meandering rivers

Autogenic translation and counter point bar deposition in meandering rivers

This paper explores the development of counter point bars in meandering rivers through autogenic translation processes.

May 1, 2021 · Z. Sylvester, P. R. Durkin, S. M. Hubbard, D. Mohrig
Point bars and counter point bars: Why is sediment deposited on the 'wrong' side of a meander bend?

Point bars and counter point bars: Why is sediment deposited on the 'wrong' side of a meander bend?

The simplest definition of point bars is that they are sedimentary deposits forming on the inner, convex bank of river bends. [‘Inner’ and ‘convex’ bank means that, looking toward the river, the bank is curving around you.] Amadeus W. Grabau, an early ‘influencer’ in stratigraphy and sedimentary geology, published a beautiful drawing of how meanders grow, point bars evolve, and oxbow lakes form, more than a hundred years ago: Diagram illustrating the development of meanders in a river. From Grabau (1920). ...

March 13, 2021 · Zoltán Sylvester