#NewPaper #Paleoclimatology #PETM

Jones, M. T., Stokke, E. W., Rooney, A. D., Frieling, J., Pogge von Strandmann, P. A. E., Wilson, D. J., Svensen, H. H., Planke, S., Adatte, T., Thibault, N., Vickers, M. L., Mather, T. A., Tegner, C., Zuchuat, V., and Schultz, B. P.: Tracing North Atlantic volcanism and seaway connectivity across the Paleocene–Eocene Thermal Maximum (PETM), Clim. Past, 19, 1623–1652, https://doi.org/10.5194/cp-19-1623-2023, 2023.

Ursache für urzeitliches Wärme-Maximum gefunden. Methanspeiende Schlote im Atlantik könnten Erwärmung vor 55 Millionen Jahren ausgelöst haben. #PETM #Klimageschichte #Temperaturmaximum #Palaeoklima #Methan #Vulkane
https://www.scinexx.de/news/geowissen/ursache-fuer-urzeitliches-waerme-maximum-gefunden/

Unterwasservulkane helfen, prähistorische Klimaerwärmung #PETM zu erklären - Neue Studie zeigt: Vulkanismus vor 56 Millionen Jahren setzte mehr Methan frei als angenommen: #Pressemitteilung: https://www.geomar.de/news/article/unterwasservulkane-helfen-praehistorische-klimaerwaermung-zu-erklaeren Original-Publikation: https://www.nature.com/articles/s41561-023-01246-8 #IODP

The Surprising Connection Between Earth's Orbital Patterns and an Ancient Warming Event
#EarthOrbitalPattern
#PETM
#PaleoceneEoceneThermalMaximum
#AncientGlobalWarming

An international team of scientists has suggested that changes in Earth's orbit that resulted in hotter conditions may have played a role in triggering a rapid global warming event that occurred 56 million years ago. This event, known as the Paleocene-Eocene Thermal Maximum (PETM), is considered to

https://scitechdaily.com/orbit-of-doom-the-surprising-connection-between-earths-orbital-patterns-and-an-ancient-warming-event/

I needed to know where the #Tolkien #LotR names come from in above article about the sudden warming and sudden halt to that warming in the #PETM.
Turns out it's a whole cluster of #MiddleEarth names on or near the Rockall Plateau. And some belong officially to #Ireland as their Marine department states in their article on "The real map of Ireland": https://www.marine.ie/site-area/irelands-marine-resource/real-map-ireland-0

But not all.
Here are all worldwide officially approved seafloor features named after Tolkien's Middle earth:

Edoras Bank, -22.166667, 56
Eriador Seamount, -25.333333, 54.833333
Fangorn Bank, -20.166667, 55.5
Gondor Seamount, -23.833333, 54.25
Lórien Knoll, -19.83333, 54.16667
Rockall Plateau, -18.83333, 56.33333
Rohan Seamount, -22.333333, 54.75
Isengard Ridge, -21, 52.416667

This last one is East of Argentina:
Hornburg Hill, -50.3508, -41.93471

Found them all here in the official global catalogue of named seafloor features: https://www.ngdc.noaa.gov/gazetteer/ by choosing a vector and exporting the results to CSV. Do it a few times to get all angles of the globe. Then a onliner #AWK for $0 ~/Tolkien/ and Bob's my uncle.

This long and interesting blogpost covers the Rockall / Gondor / Eriador area in more detail https://www.volcanocafe.org/rockall-the-lost-continent-of-middle-earth/ wrt #geology and history.
But the idea that all those mounts between Scotland and Greenland might have been "hop-able" is curious. Sea level must have been far higher than today. 65m higher from the polar ice caps, then add all the small mountain glaciers. AND it was so much warmer and hence, sea water had expanded, too. Dunno what the term is now, thermosteric or thermostatic or something?
But in any case, paired with the article in #1, a read well worth my time.
I even took away something for my quest wrt #AMOC slowdown because the area is in the region of the #ColdBlob

🆕 🗞️ Apasionante resumen de nuestro conocimiento sobre las causas del Máximo Térmico del Paleoceno-Eoceno (#PETM)

"Nuestros resultados nos ayudarán a determinar si las reacciones provocaron un comportamiento de 'punto de inflexión', en el que aumentos modestos en las emisiones provocaron un cambio climático rápido y repentino", dijo el líder del proyecto, Steve Jones, de la Universidad de Birmingham. "Eso sería preocupante para nuestro futuro".

💾 @clima

https://arstechnica.com/science/2023/01/scientists-image-remains-of-volcanic-burst-that-triggered-massive-warming/

Impressed by the article!! https://arstechnica.com/science/2023/01/scientists-image-remains-of-volcanic-burst-that-triggered-massive-warming/
Very cool writeup by Howard Lee with links to other interesting recent papers on the mysterious #Paleocene #Eocene Thermal Maximum #PETM 56 million years ago. Fascinating!
So – near Greenland, there are ancient volcanic areas and they were responsible for #CO2 and #CH4 increase, and also for the sudden stop to the warming.

The areas are named #Eriador and #Gondor – who'd have thunk? Did #Tolkien get the names from #geology or was the naming done by geologists to honour the writer? Howard Lee could have added this little info. But maybe he hasn't read Lord of the Rings #LotR.

@carlschroedl
Impressed by the article!! https://arstechnica.com/science/2023/01/scientists-image-remains-of-volcanic-burst-that-triggered-massive-warming/
Very cool writeup by Howard Lee with links to other interesting recent papers on the mysterious #Paleocene #Eocene Thermal Maximum #PETM 56 million years ago. Fascinating!
So – near Greenland, there are ancient volcanic areas and they were responsible for #CO2 and #CH4 increase, and also for the sudden stop to the warming.

The areas are named #Eriador and #Gondor – who'd have thunk? Did #Tolkien get the names from #geology or was the naming done by geologists to honour the writer? Howard Lee could have added this little info. But maybe he hasn't read Lord of the Rings #LotR.

Ars Technica: New imaging finds trigger for massive global warming 56 million years ago https://arstechnica.com/?p=1909428 #Tech #arstechnica #IT #Technology #climatechange #Earthscience #oceanography #volcanism #Science #geology #PETM

From 26 Oct: New maps of ancient warming reveal strong response to carbon dioxide - Enlarge / Global map of rainfall change due to warming 56 million years ago: green = wette... https://arstechnica.com/science/2022/10/new-maps-of-ancient-warming-reveal-strong-response-to-carbon-dioxide/ #carbon-dioxide #climate-change #earth-science #geology #petm #science

New maps of ancient warming reveal strong response to carbon dioxide - Enlarge / Global map of rainfall change due to warming 56 million years... - https://arstechnica.com/?p=1893075 #carbondioxide #climatechange #earthscience #science #geology #petm