Nyeste innlegg

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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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Grotte- og gruvenyheter / Sv: Oldest human remains outside Africa
« Nyeste innlegg av Rolf 06.02.2018 11:17 »
Mer om Misliya grotten:

"Today the site appears to be a rock shelter or an overhang, carved into the cliff. However, its form, together with remnants of enclosing walls, the ancient flowstones and the numerous boulders along the slope, suggests that it is a large collapsed cave. The cliff at Misliya, facing W/SW, is about 17-20 m high.
The anthropogenic usage of Misliya Cave is closely associated with ancient caves at the cliff face and their gradual collapse during the retreat of the cliff. The human occupation apparently occurred before, during and after some major collapse events, which occurred through the mid-late Pleistocene. Some of the collapsed debris appears to have rolled some distance down the talus at the foot of the cliff."


Grotte- og gruvenyheter / Oldest human remains outside Africa
« Nyeste innlegg av Rolf 03.02.2018 10:48 »
"A partial jawbone bearing seven teeth unearthed in a cave in Israel represents what scientists are calling the oldest-known Homo sapiens remains outside Africa, showing that our species trekked out of that continent far earlier than previously known.
Researchers on Thursday announced the discovery of the fossil estimated as 177,000 to 194,000 years old, and said the teeth bore telltale traits of Homo sapiens not present in close human relatives alive at the time including Neanderthals."

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"University of Arkansas researchers are using laser imaging to create a highly accurate, three-dimensional, digital map of public trails inside Carlsbad Cavern, the namesake cave of Carlsbad Caverns National Park, New Mexico.

The mapping project, coupled with an intensively researched history of the cave system’s manmade infrastructure and cultural interactions, will serve as a guide for the National Park Service as it manages both natural and developed environments in the caves. The work may also be used to earn Carlsbad Cavern a listing on the National Register of Historic Places.

The university’s Center for Advanced Spatial Technologies, or CAST, is performing the mapping project using a light-detection and ranging tool, or LiDAR, the same technology it employed to scan the Great Pyramid of Giza in Egypt, St. Paul’s Cathedral in London, and the largest building in the ancient city of Petra, Jordan, among other projects. CAST was chosen because of its expertise in this remote sensing technology, which uses a pulsed laser to collect billions of measurements of a physical space in 3-D. The measurements form a “point cloud” used to digitally recreate the space, providing insights into how it was built and what changes have been made.

Malcolm Williamson, a research associate with CAST, said experience gained through mapping about a mile of Blanchard Springs Caverns near Mountain View, Arkansas, helped land the contract with the National Park Service. “We did that in anticipation of infrastructure improvements, and it gave us a pretty good idea of how this will go,” Williamson said."

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Kartlegging / 3D Laser Scanning - Underground Mine Mapping
« Nyeste innlegg av Rolf 29.01.2018 21:15 »
"Darling's 3D Laser Scanning services have revolutionized the way mining industries map underground assets.  With an accurate 3D model  of existing drifts and shafts, you can take the guesswork out of where and what to develop. "


"Seven caving tourists trapped by floodwaters for five extra nights in Switzerland have emerged safely. They had sheltered in a bivouac in Hoelloch, the world's eighth-largest underground system, with their guide."


"Schwyz canton (police) said Monday that the men were all unhurt. Organizers had expected snow but it rained instead, and water in the cave rose quickly.

According to Swiss media, ongoing heavy rains have meant the cavers, and a specialist rescue team that managed to reach them underground, would have to remain in place at least until Saturday before attempting the almost two mile trek back out.

Swiss news website Swissinfo.ch reported earlier this week that the rescue team and the cavers were safe in a water-tight bivouac, had enough provisions to last, and that the temperature in the cave was well above freezing."

"Eight men trapped in the Hölloch cave network in Switzerland’s Muotathal valley since January 21 can only be rescued this weekend at the earliest due to heavy rainfall. They are unhurt and are currently stuck in a water-tight bivouac.
The group of cavers aged between 25 and 55 had entered the cave system last Saturday morning and planned to leave on Sunday afternoon.  However, they were surprised by a sudden onrush of water during an excursion with a professional guide. A specialist search and rescue team has reached them but is waiting for the water to recede before making their way out of the cave along a three-kilometre-long route. The situation is being continually assessed by the specialists but it is likely that the men will remain trapped until the weekend when the weather is predicted to calm down. In the meantime, the group is receiving psychological support. "

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Grotte- og gruvenyheter / Cavern closed at Carlsbad Cavern National Park
« Nyeste innlegg av Rolf 22.01.2018 09:39 »
"You can still visit Carlsbad Caverns National Park in southeastern New Mexico during the federal government's partial shutdown but don't expect to go underground to see the namesake cavern itself.

Park officials say all park roads and trails remain open but that the cavern and the park's visitor center are closed to visitors.

Carlsbad Cavern has a huge underground chamber called the Big Room with ceiling formations called stalactites."

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