Nyeste innlegg

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Grotte- og gruvenyheter / Sv: Innsjø i Chile forsvant
« Nyeste innlegg av Rolf 13.11.2017 15:00 »
Interessant artikkel om jøkulhlaup på nrk sine nettsider:

Grotte- og gruvenyheter / In Photos: Cave Art from Mona Island
« Nyeste innlegg av Rolf 07.11.2017 10:32 »
"Archaeologists recently explored the many subterranean caves of Mona Island. Exploring deeper in the narrow tunnels than ever before, the researchers uncovered thousands of well-preserved paintings"

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Grotte- og gruvenyheter / Redningsøvelse Nysetergruven på Grua
« Nyeste innlegg av Rolf 29.10.2017 18:16 »
Responsteamet i Norsk grotteredningstjeneste (NGRT) har i helgen avholdt
en redningsøvelse i Nysetergruven på Grua.
Grotte- og gruvenyheter / Explore underground worlds with York caving group
« Nyeste innlegg av Rolf 26.10.2017 21:44 »
"There's a group of people wandering in the dark under the ground of York, Dauphin, Cumberland and Adams Counties and beyond. The York Grotto, a local chapter of the National Speleological Society, is a group of cavers who meet for regular expeditions into the dark.
The group formed in 1959 after nine cavers met at the pavilion at Indian Echo Caverns in Hummelstown. Almost every year since, group members have traveled back to Indian Echo Caverns for a guided tour to remember their heritage. The tour takes them into the caverns and under the parking lot, right near the pavilion where their caving predecessors formed the group."

But those caverns are tame compared to what these cavers normally do.

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"Noted Italian geologist and cave explorer Francesco Sauro, who has led successful expeditions to one of the world’s oldest cave systems in Venezuela’s Tepui mountains, is gearing up to explore the “lost world” in India’s Meghalaya, which harbours some of the longest and deepest cave systems in the world.

Sauro, a speleologist, who has close to 20 years of caving experience, has participated in studying these hidden environments around the world, of which six expeditions have been to the Tepuis, the table top mountains of South America. Speleology is the scientific study of caves.

The 2014 Rolex Young Laureate recipient in exploration for his “exploration of ancient quartzite caves in the table-top mountains of South America”, now hopes to delve into the magnificent cave systems of Meghalaya, home to Krem Liat Prah, the longest natural cave in India. Most of them are limestone and sandstone caves."

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"A taskforce commissioned by the Iranian Cave and Speleology Association has issued new guideline that requires provincial departments of environment to put in place tougher regulations to ensure the caves are better shielded against potential harms by people."

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Grotte- og gruvenyheter / Descent 258
« Nyeste innlegg av Rolf 13.10.2017 09:34 »
Det internasjonale grottemagasinet Descent er ute med nytt nummer:

Les anmeldelsen av bladet på linken under:

"Descent 258 is now available! As ever, Newsdesk will bring you up to date with news at home and abroad. A new world depth record has been set in a cave in the Western Caucasus in Georgia. The latest volume in the hugely popular Northern Caves series is now available. Two stunning new calendars are available to choose from, Wild Places is again stocking the Underground Worlds calendar and there is one from Speleo Projects, as well. There’s more information about the special event being hosted at the Royal Geographical society in London from 1st to 4th on December entitled A Golden Age of British Cave Exploration. A warning is given about possible plagiarism on a new cave-related site, Start Caving; and another warning is given of the dangers posed to cavers by tick-borne diseases. On a sad note, Descent notes the death of Bryan “Scoff” Schofield, known and loved by many. But remember that this is just a short sample of the range of items covered by Newsdesk so do take a look for yourselves"

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"Geologists don’t fully understand the process of erosion that created the unique system of caves in Venezuela’s Tepui mountains. These table-topped landmasses were formed out of quartzite, one of the hardest minerals in existence, and yet they contain a magnificent network of caves. That means they’re old. Very old. Cave explorer Francesco Sauro (TED Talk: Deep under the Earth’s surface, discovering beauty and science) figures they’ve been hundreds of millions of years in the making — and they’re quite likely the oldest caves we can explore on Earth. Sauro led one of the deepest expeditions into the cave system in 2014; here are a few images from his trip, which he describes as a leap back in time."

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Kartlegging / Cave Surveying – the next steps?
« Nyeste innlegg av Rolf 27.09.2017 15:39 »
"The backbone of cave surveying is the data, in other words the numbers. We spend many hours collecting them, and some time building up pictures around the numbers. This means that as computers became a home item, cave surveyors rapidly adopted them to carry the burden of the tedious after-caving task of crunching the numbers. In recent years, we have also moved this technology into the cave and with it the surveying has continued to improve. However, getting in at the start of something generally means that most of the things you do have to be developed from scratch.


"Surveying is now changing rapidly, or certainly looks like it is about to. 3D laser scanning is growing and photogrammetry or image from motion is getting there, together with all the additional data that can be collected when surveying, like the photos, that now number thousands on every expedition."

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