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Clastics Lab

@clasticslab.bsky.social
53 followers 38 following 354 posts

Quantitative Clastics Laboratory (QCL) | @utaustin.bsky.social Jackson School of Geosciences | Bureau of Economic Geology | sedimentary geoscience

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Clastics Lab @clasticslab.bsky.social · 23/06/2026
@txgeosciences.bsky.social @zzsylvester.bsky.social presenting @geosociety.bsky.social SedGeo lecture: '... strange ordinariness of signals in stratigraphy...' 2 July, 11 am MST. Register: us06web.zoom.us/meeting/regi...
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Clastics Lab @clasticslab.bsky.social · 20/03/2026
3D animation of shelf-edge deltas in NE Gulf of Mexico for new paper w/ @hdaigle.bsky.social 'Causes of slope failure...' See #OA @geosociety.bsky.social #Geosphere doi.org/10.1130/GES0... for subsurface & depositional context
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Clastics Lab @clasticslab.bsky.social · 13/03/2026
@zzsylvester.bsky.social presenting @txgeosciences.bsky.social BEG this afternoon, 1 PM CT: 'Accreting, fast & slow...' utexas.zoom.us/j/9320137763...
Maps of Rio Mamore, Bolivia, deposition and erosion over time.
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Clastics Lab @clasticslab.bsky.social · 21/01/2026
Exploring Death Valley w/ @zzsylvester.bsky.social for fall field trip this week
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Clastics Lab @clasticslab.bsky.social · 09/01/2026
New #OA @geosociety.bsky.social Geosphere pub 'landslide influenced delta stratigraphy' w/ @zzsylvester.bsky.social, Dunlap & Covault: pubs.geoscienceworld.org/gsa/geospher.... Paper's Figure 11 compares deltas w/ landslides v 'typical' delta ('typical' see: zsylvester.github.io/papers/fuji_...).
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Clastics Lab @clasticslab.bsky.social · 15/11/2025
@utaustin.bsky.social @txgeosciences.bsky.social QCL Clastics Lab workshops & meeting this week
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Becca Dzombak @rdzombak.bsky.social · 23/10/2025
A new study argues that in the past, Cascadia quakes have triggered the San Andreas to go off, and that it could happen again. But other experts, while recognizing that may technically be possible, want more evidence. Read more at NatGeo: www.nationalgeographic.com/science/arti...
nationalgeographic.com
How ‘the big one’ near Seattle could trigger an earthquake in San Francisco
Are two of the deadliest earthquake zones in North America linked? It's possible—but controversial.
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Xuesong Ding @xding.bsky.social · 13/10/2025
It was a great experience to join and lead a team at the 2nd Geoscience Hackathon, and our team SeaPsychos won the first place🥇! Our students are amazing, very proud of them 🥳! Hook ‘em 🤘
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Clastics Lab @clasticslab.bsky.social · 02/10/2025
Navajo Sst during @txgeosciences.bsky.social QCL Clastics Lab field trip last week.
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Zoltán Sylvester @zzsylvester.bsky.social · 30/09/2025
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 · 30/09/2025
@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 · 29/09/2025
@txgeosciences.bsky.social QCL Clastics Lab field trip to Cedar Mtn Fm last week (see Cole Speed PhD: pubs.geoscienceworld.org/gsa/geology/...).
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Xuesong Ding @xding.bsky.social · 01/08/2025
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 · 24/07/2025
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....
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Clastics Lab @clasticslab.bsky.social · 29/05/2025
More field trip planning- Navajo Sandstone near Capitol Reef NP
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Clastics Lab @clasticslab.bsky.social · 28/05/2025
Utah field trip planning: Cedar Mountain channel belts south of Green River; Navajo & Ferron ssts in San Rafael Swell
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Clastics Lab @clasticslab.bsky.social · 27/05/2025
Field trip planning w/ @zzsylvester.bsky.social- photos from Gentile Wash & Tusher Canyon, UT
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Xuesong Ding @xding.bsky.social · 15/05/2025
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 · 02/05/2025
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 · 30/04/2025
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 · 22/04/2025
@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 · 21/04/2025
Piece reporting some of our collaborative research w/ USGS in @txgeosciences.bsky.social seasonal 'Geoscientist' publication: www.jsg.utexas.edu/news/2025/04...
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Clastics Lab @clasticslab.bsky.social · 19/04/2025
Dallas Dunlap successfully defended PhD today
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Clastics Lab @clasticslab.bsky.social · 10/04/2025
@txgeosciences.bsky.social PhD Jenna Kohn working on some Cherry Canyon Formation cores from the Delaware Basin this morning
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Clastics Lab @clasticslab.bsky.social · 26/03/2025
@txgeosciences.bsky.social QCL student Jenna Kohn awarded GEM Fellowship (www.gemfellowship.org/gem-fellowsh...)
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Clastics Lab @clasticslab.bsky.social · 07/03/2025
https://doi.org/10.1130/B37343.1
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Clastics Lab @clasticslab.bsky.social · 19/02/2025
www.linkedin.com/posts/gulf-o...
linkedin.com
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.
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Clastics Lab @clasticslab.bsky.social · 17/02/2025
QCL students Cassandra Guzman & Jenna Kohn recognized for posters @txgeosciences.bsky.social Research Symposium last week. Congrats!
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Clastics Lab @clasticslab.bsky.social · 10/01/2025
www.jsg.utexas.edu/news/2024/12...
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Zoltán Sylvester @zzsylvester.bsky.social · 26/12/2024
The wind-blown sands of the Navajo Sandstone look great at all scales
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Brian Romans @clasticdetritus.bsky.social · 26/12/2024
🤩
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Zoltán Sylvester @zzsylvester.bsky.social · 21/12/2024
These models were created using the 'meandergraph' Python module github.com/zsylvester/m...
github.com
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
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Zoltán Sylvester @zzsylvester.bsky.social · 21/12/2024
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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Zoltán Sylvester @zzsylvester.bsky.social · 21/12/2024
Meanders as wrinkles in time. Every time step in the animation is a 3D-printable object 🧪⚒️
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Zoltán Sylvester @zzsylvester.bsky.social · 12/12/2024
Seen today at #AGU: nice 3D visualization of experimental stratigraphy (generated at the Tulane Morphodynamics lab by José Silvestre and Kyle Straub)
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Zoltán Sylvester @zzsylvester.bsky.social · 12/12/2024
We did some work on how strike-variable accommodation affects #stratigraphy and @xding.bsky.social presented her poster about it this morning at #AGU 🧪⚒️
Xuesong in front of her poster on coastal stratigraphic response to along-strike tilting
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Zoltán Sylvester @zzsylvester.bsky.social · 12/12/2024
José was using the ‘stratigraph’ package to create this github.com/zsylvester/s...
github.com
GitHub - zsylvester/stratigraph: A set of tools for visualizing stratigraphic models
A set of tools for visualizing stratigraphic models - zsylvester/stratigraph
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Clastics Lab @clasticslab.bsky.social · 12/12/2024
Hosted QCL sponsor meeting & workshops last week. A couple of images incl Tim Lawton career retrospective & @xding.bsky.social new projects in ML/AI. Spraberry Fm core workshop incl some new Midland Basin correlations w/ @zzsylvester.bsky.social ChronoLog.
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Clastics Lab @clasticslab.bsky.social · 22/11/2024
.@txgeosciences ad for 'G&G ML/Data Science Researcher' to work w/ @ClasticsLab & TCCS @xuesong_ding, Sylvester, Fomel & Covault: utaustin.wd1.myworkdayjobs.com/en-US/UTstaff/…
utaustin.wd1.myworkdayjobs.com
Geology-Geophysics ML/Data Science Researcher
Job Posting Title: Geology-Geophysics ML/Data Science Researcher ---- Hiring Department: John A and Katherine G Jackson School of Geosciences ---- Position Open To: All Applicants ---- Weekly Scheduled Hours: 40 ---- FLSA Status: Exempt ---- Earliest Start Date: Immediately ---- Position Duration: Expected to Continue Until Nov 06, 2025 ---- Location: PICKLE RESEARCH CAMPUS ---- Job Details: General Notes The Texas Consortium for Computational Seismology (TCCS) and Quantitative Clastics Laboratory (QCL) seek a joint-sponsored geology and geophysics postdoctoral researcher appointed to the Jackson School of Geoscience Bureau of Economic Geology. Candidates with strong quantitative and computational backgrounds, as well as some experience interpreting subsurface geology and geophysical data, are invited to apply. Specifically, the TCCS and QCL aim to work with a postdoctoral researcher to develop machine learning algorithms for subsurface, primarily seismic, interpretation. Purpose The Texas Consortium for Computational Seismology (TCCS) and Quantitative Clastics Laboratory (QCL) seek a joint-sponsored geology and geophysics postdoctoral researcher appointed to the Jackson School of Geoscience Bureau of Economic Geology. Candidates with strong quantitative and computational backgrounds, as well as some experience interpreting subsurface geology and geophysical data, are invited to apply. Specifically, the TCCS and QCL aim to work with a postdoctoral researcher to develop machine learning algorithms for subsurface, primarily seismic, interpretation. Responsibilities Develop machine learning algorithms for subsurface, primarily seismic, interpretation Subsurface interpretation Compiling results, writing peer-reviewed papers, formal presentations of findings Required Qualifications PhD in a related field Demonstrated computer programming skills Knowledge of deep learning and generative artificial intelligence models Interpretation of subsurface geology and geophysical data General knowledge/familiarity with clastic depositional systems Written publication and oral presentation record PhD must have been obtained within 3 years of date of hire. Salary Range - up to $70,000. Working Conditions Repetitive use of a keyboard at a workstation Climbing of stairs Occasional weekend, overtime, and evening work to meet deadlines Occasional fieldwork as necessary Required Materials Resume/CV 3 work references with their contact information Letter of interest ---- Employment Eligibility: Please make sure you meet all the required qualifications and you can perform all of the essential functions with or without a reasonable accommodation. ---- Retirement Plan Eligibility: The retirement plan for this position is Teacher Retirement System of Texas (TRS), subject to the position being at least 20 hours per week and at least 135 days in length. This position has the option to elect the Optional Retirement Program (ORP) instead of TRS, subject to the position being 40 hours per week and at least 135 days in length. ---- Background Checks: A criminal history background check will be required for finalist(s) under consideration for this position. ---- Equal Opportunity Employer: The University of Texas at Austin, as an equal opportunity/affirmative action employer, complies with all applicable federal and state laws regarding nondiscrimination and affirmative action. The University is committed to a policy of equal opportunity for all persons and does not discriminate on the basis of race, color, national origin, age, marital status, sex, sexual orientation, gender identity, gender expression, disability, religion, or veteran status in employment, educational programs and activities, and admissions. ---- Pay Transparency: The University of Texas at Austin will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor’s legal duty to furnish information. ---- Employment Eligibility Verification: If hired, you will be required to complete the federal Employment Eligibility Verification I-9 form. You will be required to present acceptable and original documents to prove your identity and authorization to work in the United States. Documents need to be presented no later than the third day of employment. Failure to do so will result in loss of employment at the university. ---- E-Verify: The University of Texas at Austin use E-Verify to check the work authorization of all new hires effective May 2015. The university’s company ID number for purposes of E-Verify is 854197. For more information about E-Verify, please see the following: E-Verify Poster (English) [PDF] E-Verify Poster (Spanish) [PDF] Right To Work Poster (English) [PDF] Right To Work Poster (Spanish) [PDF] ---- Compliance: Employees may be required to report violations of law under Title IX and the Jeanne Clery Disclosure of Campus Security Policy and Crime Statistics Act (Clery Act). If this position is identified a Campus Security Authority (Clery Act), you will be notified and provided resources for reporting. Responsible employees under Title IX are defined and outlined in HOP-3031. The Clery Act requires all prospective employees be notified of the availability of the Annual Security and Fire Safety report. You may access the most recent report here or obtain a copy at University Compliance Services, 1616 Guadalupe Street, UTA 2.206, Austin, Texas 78701. In 2024, The University of Texas at Austin was recognized as a 5 Year Champion having placed in the top 10 among Texas employers and top 15 for higher education institutions on Forbes’s list of 500 best large employers five years running. The University’s aspiration to become the world’s highest-impact public research university is driven by our outstanding people. Our employees are the bedrock of our university and are empowered to be true to themselves, to participate fully in our vibrant university, and to thrive as individuals. UT Austin offers competitive salaries, full benefits, an extensive support network, and above all, an enriching and highly collaborative working community that is deeply passionate about our vision for higher education and public service. Looking for a student job? Please see our Student Employment site. Comments and Inquiries: Email comments to: Human Resource Service Center. For questions or concerns regarding equal opportunity only, contact Equal Opportunity Services. Additional information for applicants can be found on the Human Resources web page: Applying for Employment. For more job information, call the Human Resource Service Center at (512) 471-4772, or toll-free at (800) 687-4178. UT Austin is a Tobacco-free Campus
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Clastics Lab @clasticslab.bsky.social · 27/08/2024
Check out @txgeosciences press release for recent QCL @geosociety Bulletin #OA paper 'Turbidite correlation for paleoseismology' collaborating w/ @NorskiGeo & @USGS Gomberg, @faultscarp & McBrearty: jsg.utexas.edu/news/2024/08/a… pubs.geoscienceworld.org/gsa/gsabulleti…
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Clastics Lab @clasticslab.bsky.social · 19/06/2024
New #OA #GSApubs @GSAPublications @geosociety w/ @NorskiGeo, @zzsylvester, Covault, Gomberg, @faultscarp & McBrearty ‘Turbidite correlation for paleoseismology’: pubs.geoscienceworld.org/gsa/gsabulleti…
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Clastics Lab @clasticslab.bsky.social · 08/05/2024
Spent last week in Co. Clare, Ireland, looking at the Tullig & Ross formations w/ Andy Pulham et al. Framing a future PhD project on the Tullig shelf margin.
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Clastics Lab @clasticslab.bsky.social · 23/04/2024
Congrats to former QCL @PaulMGeo winning @txgeosciences best grad student paper. Check it out: lyellcollection.org/doi/full/10.11…
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Clastics Lab @clasticslab.bsky.social · 19/04/2024
Congrats to @ColeSpeed successfully defending his @txgeosciences PhD today! Congrats also to supervisor @zzsylvester.
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Clastics Lab @clasticslab.bsky.social · 12/04/2024
.@zzsylvester & @txgeosciences colleagues leading efforts geoscience ML/AI certificate:Kudos to QCL @ColeSpeed for visualization example in ad. app.econnect.utexas.edu/e/es.aspx?s=17
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Clastics Lab @clasticslab.bsky.social · 08/03/2024
QCL & @GeoscienceTexas @xuesong_ding w/ insightful seminar showing Badlands models of nearshore sequence stratigraphy. New insights into alongshore deposition variability. Abstract:Maybe on @Bureau3E #YouTube channel soon? youtube.com/@BureauofEcono… beg.utexas.edu/presentations/…
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Clastics Lab @clasticslab.bsky.social · 14/02/2024
Tim Lawton wrapping @ClasticsLab short course 'Integrated Basin Analysis & Provenance' this afternoon. Sandstone petrology & detrital zircon geochronology methods and examples.
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Clastics Lab @clasticslab.bsky.social · 10/02/2024
Exploring turbidites in Guadalupe Mountains w/ @zzsylvester, PhD student Jenna Kohn & Covault.
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Clastics Lab @clasticslab.bsky.social · 01/02/2024
Interested in submarine-channel filling by landslides? New #OA @DepositRecord by Covault, @zzsylvester & Dunlap:Using some beautiful, familiar data:Check out the supplementary animations & data. geodata.nzpam.govt.nz onlinelibrary.wiley.com/doi/10.1002/de…
onlinelibrary.wiley.com
Submarine‐channel meandering reset by landslide filling, Taranaki Basin, New Zealand
We use a 3D seismic-reflection dataset from the deep-water Taranaki Basin to show the interaction of submarine-channel deposits and landslides. Initially, submarine channels meandered like a river, b...
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