The strange ordinariness of high-frequency signal preservation in the stratigraphic record

The strange ordinariness of high-frequency signal preservation in the stratigraphic record

The stratigraphic record is famously fragmentary, but it is also full of short, relatively complete fragments — laminated siltstones, eolian cross sets, point bars — that record ordinary events at seasonal to annual resolution.

July 2, 2026 · Z. Sylvester
Accreting, fast and slow: Geometry, kinematics and sediment load of fluvial channels

Accreting, fast and slow: Geometry, kinematics and sediment load of fluvial channels

We developed ‘rivabar’, a graph-based Python tool that automatically extracts river centerlines and banklines from time-lapse satellite imagery, and use it to investigate how sediment load drives channel migration patterns and stratigraphic complexity in single-thread and multi-thread rivers.

March 13, 2026 · Z. Sylvester
Segmenteverygrain: A Python module for segmentation of grains in images

Segmenteverygrain: A Python module for segmentation of grains in images

A Python module that combines SAM and U-Net neural networks to automatically segment and measure grains in diverse geological image types

August 1, 2025 · Z. Sylvester, D. F. Stockli, N. Howes, K. Roberts, M. A. Malkowski, Z. Poros, R. C. Martindale, W. Bai
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
Turbidite correlation for paleoseismology

Turbidite correlation for paleoseismology

Marine turbidite paleoseismology relies on the assumption of synchronous triggering of turbidity currents by earthquake shaking to infer rupture extent and recurrence. Such inference commonly depends …

June 18, 2024 · N. M. Nieminski, Z. Sylvester, J. A. Covault, J. Gomberg, L. Staisch, I. W. McBrearty
Fluvial-style migration controls autogenic aggradation in submarine channels: Joshua Channel, eastern Gulf of Mexico

Fluvial-style migration controls autogenic aggradation in submarine channels: Joshua Channel, eastern Gulf of Mexico

There has been debate over the processes acting on deep-water channels, with comparisons made to the evolution of meandering fluvial systems. We characterized a three-dimensional seismic-reflection da…

June 1, 2024 · P. D. Morris, Z. Sylvester, J. A. Covault, D. Mohrig, D. Dunlap