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Film fra en ekspedisjon til grotten i 2017:

"Deep within caves across two continents, Mathias Vuille seeks hidden treasure of a kind — a record of what the climate was like above ground 1,000 years ago or more.
Vuille, a professor of atmospheric and environmental science at the University at Albany, is heading up a $5 million international research project funded by the National Science Foundation that will study what stalagmites — spike-like stony pillars that slowly form on cave floors — reveal about past climate.

"We believe that a better understanding of past climate variability is key to the future," said Vuillle. "A better understanding of past climate variations over North and South America will allow us to better constrain future climate projections.""

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Linker / Sv: Grottefilmer på nett
« Nyeste innlegg av Rolf 15.09.2017 13:15 »
Film fra en ekspedisjon til Burma i 2017

Fransk tale, engelsk teksting. Absolutt severdig  :)

Annet om grotter / Sv: Litt trangt ?
« Nyeste innlegg av Torstein 12.09.2017 23:17 »
he he, den tredje skvisen er litt ekkel.
Annet om grotter / Sv: Litt trangt ?
« Nyeste innlegg av Rolf 12.09.2017 09:05 »
"Another video in the series 'Remember We Do These Caves So That You Don't Have To.’
The round trip in Lionel’s Hole is definitely is not one for claustrophobics."

Annet om grotter / Litt trangt ?
« Nyeste innlegg av Rolf 05.09.2017 12:19 »
"Incredible footage has shown the moment cave explorers chipped out a hole big enough to fit a person through— revealing an entire new breathtaking cave system.

An eye-watering video shows freelance photographer and professional caver Stewart Donn, 54, originally of Gloucester, creating an opening in the ground for his friend, Patrick Fitzgerald, to squeeze through.

In the video, Mr Donn maneuvers himself through tiny cracks in the underground cavern, which exists in South Australia's Mount Gambier region.

Mr Donn often carries a camera to document his underground adventures, with him and his wife both long-time avid cavers. "

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Grotte- og gruvenyheter / A new book on the caves of New Zealand
« Nyeste innlegg av Rolf 04.09.2017 09:50 »
"There's something about a cave that excites the imagination: what lies beneath the earth, hidden in the dark? While "trolls" and "weta" may be the first two things that spring to mind, a new book by cavers Marcus Thomas and Neil Silverwood reveals much more. Caves: Exploring New Zealand's Subterranean Wilderness, tells the stories of New Zealand's world-famous and lesser-known caves, and the committed spelunkers who push themselves to the limit while plumbing their depths.

When Weekend talks to photographer Silverwood, he has just returned from a week crawling around in caves on Mt Owen in the Kahurangi National Park photographing nesting kea - who turned out to be not nesting yet, necessitating a return trip - for New Zealand Geographic magazine. He says the aim of the book is to change people's ideas about caves."

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Kartlegging / Sv: DGPS - fremdeles for dyrt?
« Nyeste innlegg av Torstein 03.09.2017 22:37 »
Takk! Knut Davidsen har i mellomtiden fått tak i en DGPS, så det er mulig vi greier oss. Men kjekt å vite at det kan være flere muligheter.
Kartlegging / Sv: DGPS - fremdeles for dyrt?
« Nyeste innlegg av haugoy 01.09.2017 18:37 »
Hvis det er til noen hjelp, så har jeg tilgang til en Trimble R10 med CPOS gjennom jobben. Kan godt måle inn punkter for dere. Den er skikkelig upresis hvis det er trær over, men gir stort sett innenfor 3 cm i høyden i åpne områder. Jeg har nøyaktig 0 erfaring med grotter, men bytter gjerne innmålte punkter mot erfaring!
Sammendrag her:

"Preceramic human skeletal remains preserved in submerged caves near Tulum in the Mexican state of Quintana Roo, Mexico, reveal conflicting results regarding 14C dating. Here we use U-series techniques for dating a stalagmite overgrowing the pelvis of a human skeleton discovered in the submerged Chan Hol cave. The oldest closed system U/Th age comes from around 21 mm above the pelvis defining the terminus ante quem for the pelvis to 11311±370 y BP. However, the skeleton might be considerable older, probably as old as 13 ky BP as indicated by the speleothem stable isotope data. The Chan Hol individual confirms a late Pleistocene settling of Mesoamerica and represents one of the oldest human osteological remains in America."

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