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)
Reposted by Jaco H. Baas
Our new paper....
"Coming to light: How effective are sediment gravity flows in removing fine suspended carbonate from reefs?" led by
@makingripples.bsky.social along with William Hewitt & James Hendry is out now as #OpenAccess in The Depositional Record.
Enjoy!
doi.org/10.1002/dep2...
"Coming to light: How effective are sediment gravity flows in removing fine suspended carbonate from reefs?" led by
@makingripples.bsky.social along with William Hewitt & James Hendry is out now as #OpenAccess in The Depositional Record.
Enjoy!
doi.org/10.1002/dep2...
November 27, 2024 at 9:36 AM
Our new paper....
"Coming to light: How effective are sediment gravity flows in removing fine suspended carbonate from reefs?" led by
@makingripples.bsky.social along with William Hewitt & James Hendry is out now as #OpenAccess in The Depositional Record.
Enjoy!
doi.org/10.1002/dep2...
"Coming to light: How effective are sediment gravity flows in removing fine suspended carbonate from reefs?" led by
@makingripples.bsky.social along with William Hewitt & James Hendry is out now as #OpenAccess in The Depositional Record.
Enjoy!
doi.org/10.1002/dep2...
@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)
Reposted by Jaco H. Baas
Result from the Kimmeridge Clay #paleostream!
March 3, 2024 at 5:42 AM
Result from the Kimmeridge Clay #paleostream!
@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)
Reposted by Jaco H. Baas
Desiccation polygons in thin microbial mats. As mats dehydrate and contract, the edges of polygons roll inwards to produce characteristic open dishes. These edges are particularly susceptible to erosion and transport - acting to ‘seed’ new mats if deposited in a suitable environment. #SabkhaSaturday
February 10, 2024 at 6:22 AM
Desiccation polygons in thin microbial mats. As mats dehydrate and contract, the edges of polygons roll inwards to produce characteristic open dishes. These edges are particularly susceptible to erosion and transport - acting to ‘seed’ new mats if deposited in a suitable environment. #SabkhaSaturday
Reposted by Jaco H. Baas
A boulder at the playground with some very nice wave ripple marks. ⚒️ #UrbanGeology
February 10, 2024 at 3:05 PM
A boulder at the playground with some very nice wave ripple marks. ⚒️ #UrbanGeology
Reposted by Jaco H. Baas
If you are a MSc or PhD Student working on volcanic processes in the sedimentary record, I encourage you to present your results during the 9th @sedsonline.bsky.social Student Webinar that is held on 24th April. Recruitment is open by 15th March: docs.google.com/forms/d/e/1F... #Seds_Online
February 7, 2024 at 7:44 AM
If you are a MSc or PhD Student working on volcanic processes in the sedimentary record, I encourage you to present your results during the 9th @sedsonline.bsky.social Student Webinar that is held on 24th April. Recruitment is open by 15th March: docs.google.com/forms/d/e/1F... #Seds_Online
Reposted by Jaco H. Baas
I reply with a picture of the axial plane crenulations
February 3, 2024 at 6:21 PM
I reply with a picture of the axial plane crenulations
@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....
Reposted by Jaco H. Baas
Source Rocks Of Earth's First Real Continents Have Been Uncovered
astrobiology.com/2024/02/sour...
#astrobiology #exoplanet #geology
astrobiology.com/2024/02/sour...
#astrobiology #exoplanet #geology
February 1, 2024 at 5:42 PM
Source Rocks Of Earth's First Real Continents Have Been Uncovered
astrobiology.com/2024/02/sour...
#astrobiology #exoplanet #geology
astrobiology.com/2024/02/sour...
#astrobiology #exoplanet #geology
Reposted by Jaco H. Baas
Outcrop of metasandstone in the 1.7 billion year old Yavapai Schist in central Arizona USA that has some intriguing relict sedimentary structures, including trough and hummocky cross-stratification and cobble-sized rip-up clasts. The huge hummocky crossbeds, with rip-ups, could be a tsunamite. 🧪⚒️
February 2, 2024 at 3:36 AM
Outcrop of metasandstone in the 1.7 billion year old Yavapai Schist in central Arizona USA that has some intriguing relict sedimentary structures, including trough and hummocky cross-stratification and cobble-sized rip-up clasts. The huge hummocky crossbeds, with rip-ups, could be a tsunamite. 🧪⚒️
Reposted by Jaco H. Baas
The BSRG Aberystwyth Fieldtrip focuses on the latest insights in submarine gravity flow research, and is open to post/graduate students and Early Career Researchers from the UK and across Europe👇
February 1, 2024 at 7:09 AM
The BSRG Aberystwyth Fieldtrip focuses on the latest insights in submarine gravity flow research, and is open to post/graduate students and Early Career Researchers from the UK and across Europe👇
Reposted by Jaco H. Baas
A tiny wee chloritoid star from the highest-grade rocks in the Northern Apennines (but still low grade), the Massa Unit: home of the very rare chloritoid + kyanite assemblage.
⚒️
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January 30, 2024 at 9:07 PM
A tiny wee chloritoid star from the highest-grade rocks in the Northern Apennines (but still low grade), the Massa Unit: home of the very rare chloritoid + kyanite assemblage.
⚒️
⚒️
Reposted by Jaco H. Baas
New Sedimentology (Volume 71/Issue 2, February 2024) is now available: onlinelibrary.wiley.com/toc/13653091...
January 29, 2024 at 7:00 AM
New Sedimentology (Volume 71/Issue 2, February 2024) is now available: onlinelibrary.wiley.com/toc/13653091...
Reposted by Jaco H. Baas
Here's Elpistostege, a transitional "fishopod" with wrists and the ability to do pushups. Life-size model by Tyler Keillor, naturally. #FossilFriday 🧪⚒️
January 26, 2024 at 4:51 PM
Here's Elpistostege, a transitional "fishopod" with wrists and the ability to do pushups. Life-size model by Tyler Keillor, naturally. #FossilFriday 🧪⚒️