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Jan Mayen Ridge
- The geology of Jan Mayen is part of the larger Jan Mayen Ridge, an undersea volcanic ridge that forms the boundary of the Iceland Plateau to the northeast. North of the island, the sea floor slopes steeply, plunging a depth of greater than two kilometers in the vicinity of Jan Mayen Rift Zone.
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The geology of Jan Mayen is part of the larger Jan Mayen Ridge, an undersea volcanic ridge that forms the boundary of the Iceland Plateau to the northeast. North of the island, the sea floor slopes steeply, plunging a depth of greater than two kilometers in the vicinity of Jan Mayen Rift Zone.
- A Tough Place to Visit
- Might Be 15,000 Years Old
- Looking For Undisturbed Lake Bottom
- Systematic Data Collection
- On The Hunt For Boring Areas
- Several Ice Ages on A Young Island
For the first time, scientists will measure variations in the glacier’s extent and collect data from as far back in time as is possible on this young island, which is a mere 400,000 years old. They will also try to reconstruct what the climate was like here in the period after the ice retreated for the last time about 15,000 years ago, in part by a...
NGU will take core samples from the lake bed to attempt to document climate history on Jan Mayen for the last 10,000 to 15,000 years. But this is a simplification. “We want to collect data from as long a period as possible, and we don’t really know how old the oldest sediments in the lake bottom are,” says postdoctoral fellow Johanna Kristina Anjar...
Before they take these core samples, NGU researchers want to know as much as possible about North Lagoon. The main purpose of the AUV (autonomous, or unmanned, underwater vehicle) survey was to find an optimum location for the core samples. The samples have to be taken where the sediments are soft. The reason for taking samples from this lake is th...
This was the first time the bottom of North Lagoon was mapped with an AUV, which examines the bottom of the lagoon systematically. “The use of modern underwater vehicles like the AUV and ROV makes it possible to map an entire lake in the course of one work day,” says Professor Ludvigsen. These tools make data collection more efficient, and research...
“We’re mostly on the lookout for the most boring-looking areas in North Lagoon, ones with a flat and monotonous bottom covered with lots of fine-grained sediment, “ says Larsen. These areas provide the best conditions for researchers to find thick layers of sediments that have largely remained undisturbed where they were first deposited, without su...
Another special feature on Jan Mayen is the island’s active Beerenberg Volcano. Its volcanic activity has persisted through several ice ages. “The oldest known rocks on the island are nearly half a million years old, and that’s young from a geological perspective,” says Larsen. Having volcanic activity at the same time that the island is covered by...
Mar 16, 2022 · The Jan Mayen microcontinent within the central NE-Atlantic formed during two breakup processes that involved seven distinct magmatic and tectonic phases over a period of ∼40 million years (∼63–21 Ma).
The Jan Mayen Microcontinent encompasses a rectangu- lar, mostly submarine fragment of continental crust that lies north of Iceland in the middle of the North Atlantic Ocean.
- 4MB
- Thomas E. Moore, Janet K. Pitman
- 27
- 2018
Jan Mayen is an Arctic island situated in the middle of the North Atlantic Ocean, at the northernmost tip of the submarine aseismic Jan Mayen Ridge just southward of the seismically active Jan Mayen Fracture Zone.
- Krzysztof Birkenmajer
- 2004
May 1, 2009 · Abstract. Field observations collected on a short expedition to Jan Mayen indicate that ankaramite was extruded at three different periods at the north-eastern end of the island, either as lava flows or pyroclastic deposits.
Sep 1, 2022 · Nordlaguna – A unique lake basin at the foot of the Beerenberg volcano, Jan Mayen, containing partially enigmatic sediments. S. Björck, M. Kylander, +4 authors. S. Wastegård. Published in Quaternary Science Advances 1 September 2022. Geology, Environmental Science. View via Publisher. Save to Library. Create Alert. Cite. One Citation. Citation Type
![Geological map of Jan Mayen [3]. The different map unit colors indicate ...](https://images.search.yahoo.com/search/images?p=geology+of+jan+mayen+lake&ei=UTF-8&age=1w&th=100.6&tw=125.8&imgurl=https%3A%2F%2Fwww.researchgate.net%2Fprofile%2FNasim-Mozafari%2Fpublication%2F354638418%2Ffigure%2Fdownload%2Ffig1%2FAS%3A1076496965861376%401633668285123%2FGeological-map-of-Jan-Mayen-3-The-different-map-unit-colors-indicate-the-different.png&rurl=https%3A%2F%2Fwww.researchgate.net%2Ffigure%2FGeological-map-of-Jan-Mayen-3-The-different-map-unit-colors-indicate-the-different_fig1_354638418&size=163KB&name=Geological+map+of+Jan+Mayen+%5B3%5D.+The+different+map+unit+colors+indicate+...&oid=1&h=680&w=850&turl=https%3A%2F%2Ftse1.mm.bing.net%2Fth%3Fid%3DOIP.C-JW-0QNs-Aad75LTmehjwHaF7%26pid%3DApi%26rs%3D1%26c%3D1%26qlt%3D95%26w%3D125%26h%3D100&tt=Geological+map+of+Jan+Mayen+%5B3%5D.+The+different+map+unit+colors+indicate+...&sigr=RV8rEWUqI5o1&sigit=0.nQ_RhbhzwG&sigi=hHnBwiBso1Th&sign=9rhL517AGkhk&sigt=9rhL517AGkhk "Geological map of Jan Mayen [3]. The different map unit colors indicate ...")
