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Clastics Lab @clasticslab.bsky.social · 7d

Navajo Sst during @txgeosciences.bsky.social QCL Clastics Lab field trip last week.

Reposted by Clastics Lab

Zoltán Sylvester @zzsylvester.bsky.social · 8d

A thread about how two geologists went to a beach with a plywood board and a protractor to see how variable wind directions influence bedform orientation - and published a paper in Science that blew my mind. 🧪⚒️🧵 1/23

Title and abstract of the Science paper by David Rubin and Ralph Hunter - Title: Bedroom Alignment in Directionally Varying Flows; Abstract: Many kinds of sediment bedforms are presumed to trend either normal or parallel to the direction of sediment transport. For this reason, the trend of bedforms observed by remote sensing or by field observations is commonly used as an indicator of the direction of sediment transport. Such presumptions regarding bedform trend were tested experimentally in bidirectional flows by rotating a sand-covered board in steady winds. Transverse, oblique, and longitudinal bedforms were created by changing only two parameters: the angle between the two winds and the proportions of sand transported in the two directions. Regardless of whether the experimental bedforms were transverse, oblique, or longitudinal (as defined by the bedform trend relative to the resultant transport direction), they all had trends that yielded the maximum gross transport across the bedforms. The fact that many of the experimental bedforms were neither transverse nor parallel to the resultant transport direction suggests that transport directions cannot be accurately determined by presuming such alignment.

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Clastics Lab @clasticslab.bsky.social · 8d

@txgeosciences.bsky.social QCL Clastics Lab at Tusher Canyon, north of Green River, UT. Origin & architecture of channels incising parasequences.

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Clastics Lab @clasticslab.bsky.social · 9d

@txgeosciences.bsky.social QCL Clastics Lab field trip to Cedar Mtn Fm last week (see Cole Speed PhD: pubs.geoscienceworld.org/gsa/geology/...).

Reposted by Clastics Lab

Xuesong Ding @xding.bsky.social · Aug 1

Larry Syu-Heng Lai and I will be leading a short course at GSA 2025, "Modeling of Landscape Evolution and Basin Stratigraphy with goSPL". Registration closes on August 5th, so please register soon at this link lnkd.in/gsT6pSUK. We thank @clasticslab.bsky.social for their generous sponsorship.

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Clastics Lab @clasticslab.bsky.social · Jul 24

Former @ClasticsLab PhD Paul Morris w/ #OA publication @segpublications @AAPGPubs #Interpretation on modeling & simulation of deep-water channel reservoirs: library.seg.org/doi/full/10....

Clastics Lab @clasticslab.bsky.social · May 29

More field trip planning- Navajo Sandstone near Capitol Reef NP

Clastics Lab @clasticslab.bsky.social · May 28

Utah field trip planning: Cedar Mountain channel belts south of Green River; Navajo & Ferron ssts in San Rafael Swell

Clastics Lab @clasticslab.bsky.social · May 27

Field trip planning w/ @zzsylvester.bsky.social- photos from Gentile Wash & Tusher Canyon, UT

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Reposted by Clastics Lab

Xuesong Ding @xding.bsky.social · May 15

Pleased to share that our paper “Retroarc foreland basins document past oceanic subduction history” is out in EPSL. 50 days’ free access through this link authors.elsevier.com/a/1l5vB,Ig4c....

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Clastics Lab @clasticslab.bsky.social · May 2

Turbidite (mostly) canyon fill & some slides(?) at the crown jewel of @californiaparks.bsky.social- Point Lobos

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Clastics Lab @clasticslab.bsky.social · Apr 30

In northern CA helping @txgeosciences.bsky.social PhD student Cassandra Guzman- Pigeon Pt Fm turbidites in the am, La Jolla fan @mbarinews.bsky.social sediment in the pm

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Clastics Lab @clasticslab.bsky.social · Apr 22

@txgeosciences.bsky.social QCL PhD students Juan Gutierrez & Jenna Kohn receive West Texas Geo Society scholarships! Congrats!

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Clastics Lab @clasticslab.bsky.social · Apr 21

Piece reporting some of our collaborative research w/ USGS in @txgeosciences.bsky.social seasonal 'Geoscientist' publication: www.jsg.utexas.edu/news/2025/04...

Clastics Lab @clasticslab.bsky.social · Apr 19

Dallas Dunlap successfully defended PhD today

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Clastics Lab @clasticslab.bsky.social · Apr 10

@txgeosciences.bsky.social PhD Jenna Kohn working on some Cherry Canyon Formation cores from the Delaware Basin this morning

Clastics Lab @clasticslab.bsky.social · Mar 26

@txgeosciences.bsky.social QCL student Jenna Kohn awarded GEM Fellowship (www.gemfellowship.org/gem-fellowsh...)

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Clastics Lab @clasticslab.bsky.social · Mar 7

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Clastics Lab @clasticslab.bsky.social · Feb 19

www.linkedin.com/posts/gulf-o...

Gulf Basin Depositional Synthesis (GBDS) on LinkedIn: Our students Juan Gutiérrez, Jazmin Villeda and Jake Margoshes presented…

Our students Juan Gutiérrez, Jazmin Villeda and Jake Margoshes presented their work at the 14th Annual Jackson School Research Symposium.

www.linkedin.com

Clastics Lab @clasticslab.bsky.social · Feb 17

QCL students Cassandra Guzman & Jenna Kohn recognized for posters @txgeosciences.bsky.social Research Symposium last week. Congrats!

Clastics Lab @clasticslab.bsky.social · Jan 10

www.jsg.utexas.edu/news/2024/12...

Reposted by Clastics Lab

Zoltán Sylvester @zzsylvester.bsky.social · Dec 26

The wind-blown sands of the Navajo Sandstone look great at all scales

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Reposted by Clastics Lab

Brian Romans @clasticdetritus.bsky.social · Dec 26

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Zoltán Sylvester @zzsylvester.bsky.social · Dec 26

The wind-blown sands of the Navajo Sandstone look great at all scales

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Reposted by Clastics Lab

Zoltán Sylvester @zzsylvester.bsky.social · Dec 21

These models were created using the 'meandergraph' Python module github.com/zsylvester/m...

GitHub - zsylvester/meandergraph: a graph-based approach to describing meanders and point bars

a graph-based approach to describing meanders and point bars - zsylvester/meandergraph

github.com

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Reposted by Clastics Lab

Zoltán Sylvester @zzsylvester.bsky.social · Dec 21

A model like this is part of a temporary exhibit at the National Gallery of Victoria in Melbourne that focuses on the Yarra (Birrarung) River [the result of a collaboration with Bush Projects, a landscape architecture company]

A 3D-printed model of meanders through time, where time is on the vertical axis. Printed in white plastic

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