Recent Posts
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:Does river migration slow down in high-curvature bends?
The answer, at least for seven rivers of the Amazon Basin, seems to be negative, as we try to demonstrate in a paper that was recently published in Geology. My coauthors are Paul Durkin, at the University of Manitoba, and Jake Covault, at the Bureau of Economic Geology, The University of Texas at Austin. In this blog post, I try to provide a bit more background to our paper.Recent Publications
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Meandering streamflows across landscapes and scales: a review and discussion
Geological Society, London, Special Publications, v. 540
A. Finotello, P. R. Durkin, Z. Sylvester
Abstract Website -
Turbidite correlation for paleoseismology
GSA Bulletin
N. M. Nieminski, Z. Sylvester, J. A. Covault, J. Gomberg, L. Staisch, I. W. McBrearty
Abstract Code Website -
Fluvial-style migration controls autogenic aggradation in submarine channels: Joshua Channel, eastern Gulf of Mexico
Geological Society, London, Special Publications, v. 540
P. D. Morris, Z. Sylvester, J. A. Covault, D. Mohrig, D. Dunlap
Abstract Website Supplementary Material -
The impact of post-cutoff bend curvature on channel kinematics in meandering rivers: an example from the Trinity River, Texas, USA
Geological Society, London, Special Publications, v. 540
C. M. Speed, Z. Sylvester, P. D. Morris, D. Mohrig
Abstract Code Website Supplementary Material