Nyeste innlegg

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Kartlegging / 3D scan of a cave network in spain
« Nyeste innlegg av Rolf 17.03.2018 10:04 »
"For some time, scientists have known that the Moon and Mars have some fascinating similarities to Earth. In addition to being similar in composition, there is ample evidence that both bodies had active geological pasts. This includes stable lava tubes which are very similar to those that exist here on Earth. And in the future, these tubes could be an ideal location for outposts and colonies.

However, before we can begin choosing where to settle, these locations need to be mapped out to determining which would be suitable for human habitation. Luckily, a team of speleologists (cave specialists), geologists and ESA astronauts recently created the largest 3D image of a lava tube ever created. As part of the ESA’s PANGAEA program, this technology could one day help scientists map out cave systems on the Moon and Mars.

The lava tube in question was the La Cueva de Los Verdes, a famous tourist destination in Lanzarote, Spain. In addition to ESA astronaut Matthias Mauer, the team consisted of Tommaso Santagata (a speleologist from the University of Padova and the co-founder of the Virtual Geographic Agency), Umberto Del Vecchio and Marta Lazzaroni – a geologists and a masters student from the University of Padova, respectively."

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Grotte- og gruvenyheter / The magic circle of western Mexico
« Nyeste innlegg av Rolf 12.03.2018 09:02 »
"Our little group was convinced there were caves lurking everywhere in the state of Jalisco and our technique for finding them was simple. We would pick a pueblito somewhere, go to the plaza and walk up to one of the old-timers inevitably sitting there on a bench, warming himself in the early-morning sun.

“Buenos días,” caballero,” we would say. “Do you happen to know if there are any caves around here?”

“Cuevas?” the old man would reply and then, perhaps, a dreamy look would come into his eyes. “There’s a cave on that hillside, right over there. They say there are gold bars buried inside. We looked everywhere for them, but all we found were mountains of guano, from all the bats.”"

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Kartlegging / Grottene i salangen
« Nyeste innlegg av Jan vimme 11.03.2018 21:37 »
Heia. E mildt sagt vokst opp i grottene i salangen i troms. Har guidet der siden e va 14 år. Men.
Men har begynt å tenke på at det hadde vært gøy å visst om  noen av dere har kart over disse grottene?
Sagelvas grotter e jo utforsket av mange men har ikkje kommet over nå kart enda

Hilsen jan vimme
" More:New chamber found near Cambria Cavern west of Round Rock

The cavern underneath a neighborhood west of Round Rock could be even bigger than engineers first thought.

While Williamson County officials were drilling for core samples around the cave that opened up in the Brushy Creek neighborhood Feb. 8, they discovered an air pocket about 20 feet away from the entrance, toward Ephraim Road. On Tuesday, they lowered a flashlight and camera down through the bore hole and estimate the chamber is about 20 feet below street level and about 9 feet from there to the bottom. "


Mer om jordfallshullet som alle Corvettene datt ned i  :-\

"Some eighty feet under the National Corvette Museum’s Skydome is a cave that was discovered when the floor broke through and eight Corvettes fell into the sinkhole four years ago.

After the Museum’s floor was stabilized with micropiles, the sinkhole was filled and the Skydome floor was replaced. But under the Museum, the cave remains. It’s accessible inside the Skydome by climbing down a 30-foot tube and then descending another 50 feet to get to the cave floor."


"Engineers testing ceiling strength of Cambria Cavern

Engineers are boring holes into a cave that opened up in a neighborhood west of Round Rock in an effort to determine the strength of the ceiling, but had to halt because of a leak in the equipment.

Surveyors were also out at the site near Ephraim Road and Cambria Drive in the Brushy Creek neighborhood, working to georeference the underground cave map to locations above ground. That will help them determine what needs repairs.

Crews have completed three of the five core samples, and hope to finish the rest Wednesday after repairing the equipment that had a hydraulic leak. A Williamson County spokeswoman says each core sample can take several hours. Next week, engineers will work to create a 3D map of the cave."

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"GWENT cavers said they were “very lucky” to be safe on Saturday after being underground near the epicentre of an earthquake.

The Gwent Caving Club had travelled to Swansea to cave in Ogof Ffynnon Ddu, the second-longest cave in Wales located in the Upper Swansea Valley and had began their excursion before hearing a rumbling.

Jamie Larke, of Blaina, who has been caving for 20 years, said they were climbing an underground waterfall when the rumbling began.

He said: “There was huge rumbling which was ongoing for at least 10 seconds and we thought that there had been a cave-in.

“A few minutes after that there was an awful smell like rotten eggs which usually means there has been some rock movement.

“We had a quick look around in the immediate area and decided everything was OK and carried on with our trip."

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"If you've watched the Channel 4 documentary The First Brit: Secrets of the 10,000 Year Old Man, or read about the Museum's research into Cheddar Man, you may have some further questions you'd like answered.
Here are our researchers' responses to some of the most popular queries they've received."

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"Jaw-dropping pictures show the incredible scene in Round Rock, Texas, after a sinkhole collapsed this week, swallowing a giant section of the street.

Police and engineers arriving on scene were left stunned at what was discovered underneath.

The hole opened up a previously undiscovered subterranean cave system stretching almost 100ft long under the surface of the road above."

"The first modern Briton, who lived around 300 generations ago, had “dark to black” skin.

Britain’s oldest complete skeleton, known as Cheddar Man, was unearthed more than a century ago in Gough’s Cave in Somerset.

But an unprecedented examination of his DNA, along with a facial reconstruction of the fossil, shows that the young man would have had a darker complexion than previously thought, along with blue eyes and dark, curly hair.

Previous reconstructions of Cheddar Man, which were not based on DNA data, depicted him with a lighter skin tone.

The research and remodelling process was documented for an upcoming documentary called The First Brit: Secrets of the 10,000 year old man.

“For me, it’s not just the skin colour that’s interesting, it’s that combination of features that make him look not like anyone that you’d see today,” said Ian Barnes, research leader at the Natural History Museum. “Not just dark skin and blue eyes, because you can get that combination, but also the face shape. So all of this combines together and make him just not the same as people you see around today.”

Barnes and his colleague Selina Brace extracted DNA data from bone powder by drilling a 2-millimetre hole through the skull’s inner ear bone. They scanned the skull and a 3D model was produced by “palaeo artists” Alfons and Adrie Kennis, who make life-like reconstructions of extinct mammals and early humans."

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