Jaco H. Baas
@makingripples.bsky.social
Reader in School of Ocean Sciences, Bangor University; Work: clay (much more than dirt!), EPS, bedforms, turbidites, geology/geography. ⚒️ Other interests: 🎶🌎 ⚽️🚶♂️👨🍳
⚒️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)
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)
April 2, 2025 at 11:54 AM
⚒️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)
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)
@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
@lokier.bsky.social @bangoruniversity.bsky.social
November 27, 2024 at 10:11 PM
@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
@lokier.bsky.social @bangoruniversity.bsky.social
@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.
.
@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.
.
August 28, 2024 at 6:46 PM
@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.
.
@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.
.
NEW PAPER ALERT: Silt matters in sandy bedform dynamics! Led by Sjoukje de Lange and soon to be published in
AGU's Water Resources Research.
AGU's Water Resources Research.
July 12, 2024 at 9:22 AM
NEW PAPER ALERT: Silt matters in sandy bedform dynamics! Led by Sjoukje de Lange and soon to be published in
AGU's Water Resources Research.
AGU's Water Resources Research.
NEW 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.
July 12, 2024 at 9:07 AM
NEW 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.
@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
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
July 12, 2024 at 8:54 AM
@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
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
July 11, 2024 at 2:38 PM
@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
April 5, 2024 at 8:09 AM
@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
@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.
March 27, 2024 at 2:43 PM
@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.
@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)
March 13, 2024 at 8:19 PM
@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)
@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!
February 15, 2024 at 3:14 PM
@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!
@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)
February 11, 2024 at 4:12 PM
@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)
@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....
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....
February 4, 2024 at 5:32 PM
@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....
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....
Please provide a short, one-page CV. OK then ...
January 23, 2024 at 7:45 PM
Please provide a short, one-page CV. OK then ...
@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.
January 19, 2024 at 1:42 PM
@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.
@earth-science.bsky.social ⚒️ Graded conglomerate-sandstone, Ordovician, Anglesey, Wales, UK. Are the gravel clasts imbricated?
January 8, 2024 at 1:05 PM
@earth-science.bsky.social ⚒️ Graded conglomerate-sandstone, Ordovician, Anglesey, Wales, UK. Are the gravel clasts imbricated?
@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)
Sjoukje de Lange (Univ. Wageningen)
January 5, 2024 at 2:22 PM
@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)
Sjoukje de Lange (Univ. Wageningen)
@earth-science.bsky.social ⚒️ Proximal submarine channel fill in the deep-marine Aberystwyth Grits Group (Silurian, Cwmtydu, West Wales, UK)
January 5, 2024 at 12:50 PM
@earth-science.bsky.social ⚒️ Proximal submarine channel fill in the deep-marine Aberystwyth Grits Group (Silurian, Cwmtydu, West Wales, UK)
@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.
January 2, 2024 at 9:06 AM
@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.
@earth-science.bsky.social ⚒️ Complex tectonics in the turbiditic Aberystwyth Grits Group, Clarach Bay, West Wales, UK. Spot the Bangor University students for scale.
December 31, 2023 at 4:24 PM
@earth-science.bsky.social ⚒️ Complex tectonics in the turbiditic Aberystwyth Grits Group, Clarach Bay, West Wales, UK. Spot the Bangor University students for scale.
@earth-science.bsky.social ⚒️ Former metal mine of Parys Mountain (Mynydd Parys), Anglesey, NW Wales, UK.
December 29, 2023 at 7:33 AM
@earth-science.bsky.social ⚒️ Former metal mine of Parys Mountain (Mynydd Parys), Anglesey, NW Wales, UK.
@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.
December 27, 2023 at 1:11 PM
@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.
@earth-science.bsky.social ⚒️ Happy holidays and best wishes for 2024!
December 25, 2023 at 12:46 PM
@earth-science.bsky.social ⚒️ Happy holidays and best wishes for 2024!
@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. 🎄🎁🎅
December 24, 2023 at 12:26 PM
@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. 🎄🎁🎅
@earth-science.bsky.social Collapsing sediment frozen in time. Burlington Stone, Borrowdale Volcanics, Lake District, UK.
December 22, 2023 at 6:53 PM
@earth-science.bsky.social Collapsing sediment frozen in time. Burlington Stone, Borrowdale Volcanics, Lake District, UK.