Jeff Peakall
@hyperpycnal.bsky.social
Geologist. Into: sediments and flows, bedforms, injectites, tsunami, nuclear waste clean up
My work office flooded yet again following Storm Claudia. Maybe back in it early 2026. Will be back hot desking in the PhD office once more.
November 17, 2025 at 7:12 PM
My work office flooded yet again following Storm Claudia. Maybe back in it early 2026. Will be back hot desking in the PhD office once more.
Tsunami vs Storms. Here we show unequivocal diagnostic criteria for differentiating between these in coastal lakes and lagoons based on the sedimentological records. Led by the astonishing Patrick.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Tsunami versus storms: Diagnostic sedimentary criteria in coastal lakes, lagoons and sinkhole deposits
Sedimentary deposits of coastal flooding by tsunamis and storms extend archives of these events across millennia. However, the utility of these record…
www.sciencedirect.com
September 19, 2025 at 12:49 PM
Tsunami vs Storms. Here we show unequivocal diagnostic criteria for differentiating between these in coastal lakes and lagoons based on the sedimentological records. Led by the astonishing Patrick.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Great to see this paper out on turbidity currents interacting with slopes, and how high angle differences between sole marks and ripples can occur. Overturns ideas that have stood for 3 decades! onlinelibrary.wiley.com/doi/10.1111/...
Three‐dimensional gravity current interactions with oblique slopes: Deflection, reflection and combined‐flow behaviours
Gravity currents interacting with planar slopes have been thought to always ‘reflect’ a component of flow orthogonal to the slope irrespective of the flow incidence angle. Incoming flows are argued t....
onlinelibrary.wiley.com
July 21, 2025 at 5:20 PM
Great to see this paper out on turbidity currents interacting with slopes, and how high angle differences between sole marks and ripples can occur. Overturns ideas that have stood for 3 decades! onlinelibrary.wiley.com/doi/10.1111/...
As settings go, it is quite an impressive place to graduate! The eldest will be up on stage later. Looking forward to it!
July 15, 2025 at 8:42 AM
As settings go, it is quite an impressive place to graduate! The eldest will be up on stage later. Looking forward to it!
The coke that arrives at the cafe. Is it a sign?
July 1, 2025 at 1:10 PM
The coke that arrives at the cafe. Is it a sign?
Nearly 2 hours now in the Q to register at the IAS Huelva meeting. By some margin the worst organised conference I have attended in 35 years! The sessions started long ago!
June 26, 2025 at 10:07 AM
Nearly 2 hours now in the Q to register at the IAS Huelva meeting. By some margin the worst organised conference I have attended in 35 years! The sessions started long ago!
The Q for registration at the IAS meeting.
June 26, 2025 at 8:11 AM
The Q for registration at the IAS meeting.
Another paper on the wonderful world of cohesive sediments - this time looking at salt marshes. Once upon a time I just worked on sandstones, but then I saw the light. Led by the brilliant Juliet Rounce.
www.intechopen.com/online-first...
www.intechopen.com/online-first...
Depositional and Erosional Behaviour of Cohesive Sediments in Estuarine Saltmarsh and Mudflat Environments
Management of aquatic environments relies on the accurate prediction of sediment transport via numerical models. Knowledge of erosional and depositional behaviours in the muddy sediments dominating th...
www.intechopen.com
February 16, 2025 at 7:07 PM
Another paper on the wonderful world of cohesive sediments - this time looking at salt marshes. Once upon a time I just worked on sandstones, but then I saw the light. Led by the brilliant Juliet Rounce.
www.intechopen.com/online-first...
www.intechopen.com/online-first...
Revisiting the black shales depositional enigma! This one has taken a while, but delighted to see this out at last. With a stellar cast, and me.
onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com/doi/10.1111/...
Revisiting the black shale depositional enigma: Transport processes and contrasting sediment sources in a heterolithic basin fill – Bowland Basin, England
Factors that control the accumulation of organic-rich shales are keenly debated and include basin redox variations, sediment provenance and diverse depositional processes. The relative importance of ....
onlinelibrary.wiley.com
February 16, 2025 at 7:04 PM
Revisiting the black shales depositional enigma! This one has taken a while, but delighted to see this out at last. With a stellar cast, and me.
onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com/doi/10.1111/...
Coverage of the Sedimentology mass resignations at Retraction Watch. Note: 13 of 32 AEs have resigned (40%); the website was already out of date, so figures herein are not quite right.
retractionwatch.com/2025/02/14/e...
retractionwatch.com/2025/02/14/e...
Editors resign from sedimentology society journal amid ‘extraordinary and troubling times’
The chief editors of the journal Sedimentology have resigned, along with nearly a third of its associate editors, as the society running the title amended its publishing contract. The Interna…
retractionwatch.com
February 16, 2025 at 3:12 PM
Coverage of the Sedimentology mass resignations at Retraction Watch. Note: 13 of 32 AEs have resigned (40%); the website was already out of date, so figures herein are not quite right.
retractionwatch.com/2025/02/14/e...
retractionwatch.com/2025/02/14/e...
The crisis at the journal Sedimentology keeps deepening. Following the letters from present and past Presidents making it clear there will be no changes, there has been another resignation from among the remaining Associate Editors
February 10, 2025 at 4:26 PM
The crisis at the journal Sedimentology keeps deepening. Following the letters from present and past Presidents making it clear there will be no changes, there has been another resignation from among the remaining Associate Editors
For those who can access it, I have posted to the BSRG mailing list a brief response to a few of the points in the IAS President's letter. The letter is quite extraordinary. Over and out.
February 9, 2025 at 8:51 AM
For those who can access it, I have posted to the BSRG mailing list a brief response to a few of the points in the IAS President's letter. The letter is quite extraordinary. Over and out.
Many of you will have received the letter from the IAS President. The response to our mass resignation as Associate Editors and all the previous resignations is to continue without changing anything one iota. We hope that we have at least shone a light on the workings of the IAS Bureau.
February 9, 2025 at 8:46 AM
Many of you will have received the letter from the IAS President. The response to our mass resignation as Associate Editors and all the previous resignations is to continue without changing anything one iota. We hope that we have at least shone a light on the workings of the IAS Bureau.
Following the resignations of all Chief Editors of the journal Sedimentology, I and about 40% of the Associate Editors have also resigned. This has been a very difficult decision for all of us, however we felt that we could not continue. Some AEs have served the journal for decades.
February 7, 2025 at 5:23 PM
Following the resignations of all Chief Editors of the journal Sedimentology, I and about 40% of the Associate Editors have also resigned. This has been a very difficult decision for all of us, however we felt that we could not continue. Some AEs have served the journal for decades.
Armoured mud clasts are far more important in deep marine systems than we thought, and here we detail the evidence for their transport. Also large buckets filled with multicolour plastic balls...
#WeekendReading with The Depositional Record: Preservation of groove mark striae formed by armoured mud clasts: The role of armour sediment size and bed yield stress doi.org/10.1002/dep2...
Preservation of groove mark striae formed by armoured mud clasts: The role of armour sediment size and bed yield stress
Experiments simulating the formation of striated grooves by armoured mud clasts carried at the base of quasi-laminar and fully laminar debris flows reveal that tools with small-diameter silt and sand...
doi.org
January 25, 2025 at 8:14 AM
Armoured mud clasts are far more important in deep marine systems than we thought, and here we detail the evidence for their transport. Also large buckets filled with multicolour plastic balls...
Finally made it here from the dark side.
January 8, 2025 at 8:24 PM
Finally made it here from the dark side.