Jaco H. Baas @makingripples.bsky.social · 02/04/2025⚒️NEW PAPER ALERT: Softgrounds: substrates controlled by sediment gravity flows and the evolution of deep-water trace fossils With Yuxuan Wang, Paul Wignall, Jeff Peakall & Simon Poulton (forthcoming GeolSoc SP) 063 0
Jaco H. Baas @makingripples.bsky.social · 27/11/2024@earth-science.bsky.social ⚒️NEW PAPER ALERT: "Coming to light: How effective are sediment gravity flows in removing fine suspended carbonate from reefs?" with @lokier.bsky.social @bangoruniversity.bsky.social 021 0
Jaco H. Baas @makingripples.bsky.social · 28/08/2024@earth-science.bsky.social ⚒️ Dear @sedimentology.bsky.social student members, I encourage you to apply for the 11th International Summer School of Sedimentology, held on July 4-12, 2025, in Wales and hosted by @makingripples.bsky.social, Meg Baker, Dei Huws & @lokier.bsky.social. . 086 0
Jaco H. Baas @makingripples.bsky.social · 12/07/2024NEW PAPER ALERT: Silt matters in sandy bedform dynamics! Led by Sjoukje de Lange and soon to be published in AGU's Water Resources Research. 030 0
Jaco H. Baas @makingripples.bsky.social · 12/07/2024NEW PAPER ALERT: Continuing the reinvention of sole marks, and extending their use beyond palaeoflow reconstruction. Led by Jeff Peakall and soon out in the journal Sedimentology. 020 0
Jaco H. Baas @makingripples.bsky.social · 12/07/2024@earth-science.bsky.social NEW PAPER ALERT: How does sediment gravity flow mobility vary for mixtures of weakly & strongly cohesive clay types? Counterintuitively, adding small amounts of strongly cohesive clay enhances mobility... Led by the amazing Megan Baker and to be published in AGU monograph 020 0
Jaco H. Baas @makingripples.bsky.social · 05/04/2024@earth-science.bsky.social New paper submitted: An extension of a classical method for predicting water-surface wave properties from wave ripples in the geological record. Led by Jonathan Malarkey.⚒️🌊 @jsedimentology.bsky.social 000 0
Jaco H. Baas @makingripples.bsky.social · 27/03/2024@earth-science.bsky.social ⚒️ Some places left for ECRs, but be quick! Price reduced to £156 p/p, following generous sponsoring from the International Association of Sedimentologists. 021 0
Jaco H. Baas @makingripples.bsky.social · 13/03/2024@earth-science.bsky.social ⚒️ New paper alert: Marine redox dynamics and biotic response to the mid-Silurian Ireviken Extinction Event in a mid-shelf setting, led by Yuxuan Wang (Leeds) 031 0
Jaco H. Baas @makingripples.bsky.social · 15/02/2024@earth-science.bsky.social ⚒️ New manuscript submitted: "Integrating transitional-flow signatures into hybrid event beds: Implications for hybrid-flow evolution on a submarine lobe fringe", led by Piotr Łapcik (Krakow, Poland). An extended facies model for hybrid event beds! 000 0
Jaco H. Baas @makingripples.bsky.social · 11/02/2024@earth-science.bsky.social Part 2 of what MS Bing AI picture creator makes of "deep-marine turbidity current". It is getting worse! (left: 2 months ago, right: today) 030 0
Jaco H. Baas @makingripples.bsky.social · 04/02/2024@earth-science.bsky.social ⚒️ New publication alert: Manning, Chassagne & Parsons - Cohesive Sedimentary System: Dynamics and Deposits A great collection of papers on 'sticky' sediment. Free to download: www.frontiersin.org/research-top.... 061 0
Jaco H. Baas @makingripples.bsky.social · 23/01/2024Please provide a short, one-page CV. OK then ... 021 0
Jaco H. Baas @makingripples.bsky.social · 19/01/2024@earth-science.bsky.social I probably won't cite these in any papers soon, but these old geology books (remember books?!) are a nice addition to my bookshelf. 090 0
Jaco H. Baas @makingripples.bsky.social · 08/01/2024@earth-science.bsky.social ⚒️ Graded conglomerate-sandstone, Ordovician, Anglesey, Wales, UK. Are the gravel clasts imbricated? 060 0
Jaco H. Baas @makingripples.bsky.social · 05/01/2024@earth-science.bsky.social ⚒️ New manuscript submitted: "Fine sediment in mixed sand-silt environments impacts bedform geometry by altering sediment mobility", led by Sjoukje de Lange (Univ. Wageningen) 030 0
Jaco H. Baas @makingripples.bsky.social · 05/01/2024@earth-science.bsky.social ⚒️ Proximal submarine channel fill in the deep-marine Aberystwyth Grits Group (Silurian, Cwmtydu, West Wales, UK) 051 0
Jaco H. Baas @makingripples.bsky.social · 02/01/2024@earth-science.bsky.social ⚒️ Fluid-induced Interfacial Deformation Structures (FIDs) on mud ripples (shown on lower bed surfaces). Yellow arrows point in palaeoflow direction. Source: manuscript in review prepared by Peakall, Best, Baas, Wignall, Hodgson & Łapcik. 283 0
Jaco H. Baas @makingripples.bsky.social · 31/12/2023@earth-science.bsky.social ⚒️ Complex tectonics in the turbiditic Aberystwyth Grits Group, Clarach Bay, West Wales, UK. Spot the Bangor University students for scale. 1183 0
Jaco H. Baas @makingripples.bsky.social · 29/12/2023@earth-science.bsky.social ⚒️ Former metal mine of Parys Mountain (Mynydd Parys), Anglesey, NW Wales, UK. 083 0
Jaco H. Baas @makingripples.bsky.social · 27/12/2023@earth-science.bsky.social ⚒️ Chevron marks evolving to groove mark formed by tool first hovering above seabed then scraping seabed below debris flow. Flow to lower left. Aberarth section, Silurian Aberystwyth Grits Group, west Wales, UK. 4234 0
Jaco H. Baas @makingripples.bsky.social · 25/12/2023@earth-science.bsky.social ⚒️ Happy holidays and best wishes for 2024! 04410 0
Jaco H. Baas @makingripples.bsky.social · 24/12/2023@earth-science.bsky.social ⚒️ Did you know that turbidity currents can flow below the sea bed? This happens when flow density is greater than mud bed density. These ultrasound images ⬇️ show the change of 'suprabed' (top) to 'intrabed' flow (bottom) in the Porto Alegre laboratory, Brazil. 🎄🎁🎅 2147 0
Jaco H. Baas @makingripples.bsky.social · 22/12/2023@earth-science.bsky.social Collapsing sediment frozen in time. Burlington Stone, Borrowdale Volcanics, Lake District, UK. 2348 0
Jaco H. Baas @makingripples.bsky.social · 20/12/2023@earth-science.bsky.social Wavy injectites in deep-marine Aberystwyth Grits Group, Silurian, West Wales, UK 1184 0
Jaco H. Baas @makingripples.bsky.social · 19/12/2023Great talk by Xuxu Wu (Hull) on combined-flow ripples at the BSRG23 AGM (Loughborough) 020 0
Jaco H. Baas @makingripples.bsky.social · 15/12/2023Bing does a lot better, but it looks more like an underwater explosion. 130 0
Jaco H. Baas @makingripples.bsky.social · 15/12/2023@earth-science.bsky.social This is what a popular AI picture creator makes of "deep-marine turbidity current". I'm glad I'm not a student relying on AI for assignments, but let this be the start of a long-term test to explore how AI improves with time. I'll try again next month. Watch this space. 230 0
Jaco H. Baas @makingripples.bsky.social · 15/12/2023@earth-science.bsky.social ⚒️ Folded #turbidites, Cambrian South Stack Group, Anglesey, Wales, UK 2206 0
Jaco H. Baas @makingripples.bsky.social · 14/12/2023@earth-science.bsky.social ⚒️ Flute marks in deep-marine Aberystwyth Grits Group, Wales, UK 3377 0
Jaco H. Baas @makingripples.bsky.social · 13/12/2023@earth-science.bsky.social After the hydrobia, foraminifera have arrived for the particle shape project with @lokier.bsky.social and @annettelokier.bsky.social. 151 0
Jaco H. Baas @makingripples.bsky.social · 10/12/2023@earth-science.bsky.social Getting ready for the AGM of BSRG 2023 in Loughborough 031 0
Jaco H. Baas @makingripples.bsky.social · 08/12/2023@earth-science.bsky.social New project on the go with @lokier.bsky.social and @annettelokier.bsky.social. Guess what? 032 0
Jaco H. Baas @makingripples.bsky.social · 08/12/2023@earth-science.bsky.social Treasure trove! Thanks, Bangor University library for the donation. 1120 0