Nyeste innlegg

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1
Grotte- og gruvenyheter / New to caving
« Nyeste innlegg av Rolf 25.06.2017 18:05 »
Nytt britisk websted, med råd til nybegynnere:

http://newtocaving.com
2
"The weather report for California 8,200 years ago was exceptionally wet and stormy.

That is the conclusion of a paleoclimate study that analyzed stalagmite records from White Moon Cave in the Santa Cruz Mountains published online Jun. 20 in Scientific Reports.

The Golden State's 150-year stretch of unusually wet weather appears to have been marked by particularly intense winter storms and coincides with a climate anomaly in Greenland ice cores first detected in 1997. Before this "8.2 ka event" was discovered scientists thought the world's climate had been unusually stable during the Holocene, the geological epoch that covers the last 11,700 years of Earth's history.

Since then researchers have associated the distinctive, 3.3-degree Celsius temperature dip in the Greenland ice cores with a catastrophic event: The drainage of two giant glacial lakes (Lake Ojibway and Lake Agassiz) located in northeastern North America caused by the collapse of massive ice sheet that covered much of the continent during the last ice age. In short order, the two lakes dumped enough melt water into the North Atlantic to disrupt the world's oceanic and atmospheric circulation patterns and raise the sea level by somewhere between two to 10 feet. The tremendous freshwater flood has been associated with an extended cold snap in Europe, increased drought in Africa, weakened monsoons in Asia and strengthened monsoons in South America."

more:

https://www.eurekalert.org/pub_releases/2017-06/vu-was061617.php
4
Annet om grotter / Yorkshire Dales Cave Monitoring Project
« Nyeste innlegg av Rolf 17.06.2017 15:24 »
"We are monitoring two cave sites in the Yorkshire Dales to provide background data to Palaeoclimate studies on Stalactites. We have temperature loggers and drip rate loggers situated in the caves, and take hand held CO2, temperature and relative humidity readings every 6-8 weeks. We also collect cave water samples which are analysed for isotope values in comparison to rainfall values."

more:

https://yorkshiredalescavemonitoringproject.wordpress.com
https://m.facebook.com/Yorkshire-Dales-Cave-Monitoring-Project-1925090417767892/?notif_t=page_fan&notif_id=1497628110444313&ref=m_notif
5
Grotte- og gruvenyheter / More witch markings found at Wookey Hole
« Nyeste innlegg av Rolf 15.06.2017 11:10 »
"A series of witch markings have been discovered carved into walls at an underground tourist attraction.
The symbols were originally thought to be graffiti, but experts now believe they were carved to ward off evil spirits at Wookey Hole, Somerset.
Four new ritual protection marks were found by staff creating a new caving experience at the site.
Experts from Bristol University who have studied the markings said they dated from about 1550 to 1750.
Chris Binding from the university's speleological society, who helped carry out the survey, said about 50 carvings, which were originally thought to be mason's marks, were identified as being ritual protection marks in 2007."

More:

http://www.bbc.com/news/uk-england-somerset-40262004
6
Annet om grotter / Blombos cave
« Nyeste innlegg av Rolf 15.06.2017 10:49 »
"Mennesket skabte de første æstetiske udtryk for cirka 100.000 år siden, viser arkæologisk fund

I en grotte i Sydafrika har et hold forskere under ledelse af arkæologiprofessor Christopher Henshilwood siden 1991 studeret menneskets historie og gjort sig flere spektakulære fund. I mange år har man troet, at de ældste kunstneriske udtryk var omkring 50.000 år gamle, men fundet af dekorerede okkersten fra cirka 100.000 år siden ændrer fundamentalt på opfattelsen af, hvornår mennesket begyndte at udtrykke sig gennem symboler.

”Det viser, at mennesker allerede dengang havde et forhold til æstetik ud over de redskaber og våben, de skabte med praktisk brug for øje. Vi ved også, at mennesket tidligt lavede dekorationer og smykker, der ikke havde andet formål end at være pynt,” siger den sydafrikanske professor til den norske avis Vårt Land."

https://www.kristeligt-dagblad.dk/kultur/kunsthistorien-er-langt-aeldre-end-hidtil-antaget
https://www.thoughtco.com/blombos-cave-167250
http://www.donsmaps.com/blombos.html
7
Grotte- og gruvenyheter / Sv: Engavatnet - vannet som forsvinner
« Nyeste innlegg av Rolf 15.06.2017 10:34 »
Nå på nrk nordland:

"Klokken 13 mandag formiddag var Engavatnet nok en gang fullstendig tømt for vann. I løpet av de tre siste årene har vannet vært delvis tømt ved to anledninger, men det er først nå det er fullstendig tappet.

– Vannet renner ned i en underjordisk sjø under kalkbunnen, forteller Jan Odvar Nielsen som har fulgt fenomenet gjennom flere år.

Årsaken til fenomenet skal være at grunnvannstanden synker. Denne fungerer som en propp under sjøen."

https://www.nrk.no/nordland/55-millioner-liter-vann-_forsvinner_-og-kommer-tilbake_-_-her-skjer-det-noe-helt-spesielt-1.13555922
http://www.banett.no/nyheter/2017/06/12/Engavatnet-tømmes-14861139.ece
8
Grotte- og gruvenyheter / Sv: Tourism a no-no for world’s biggest cave
« Nyeste innlegg av Rolf 11.06.2017 17:43 »
"The interior landscape of Son Doong Cave is ethereal and fantastic. Keep in mind that this mystical landscape is cloaked in darkness. The camera sees far more than the naked eye.

This spring I visited and spent a number of days and nights in the world’s largest cave, in the jungle mountains of central Vietnam. Fewer people have been to the cave than have been into space. This was a journey of 6,000 miles to the other side of the world, and an arduous trek through the jungle, down precipices, and across narrow and high bridges in the darkness with water gurgling far below.

For me, the appeal of visiting the world’s largest cave was less to do with the “cavey things”, or even the varied landscapes and portals of the cave, and more to do with where one begins to see the light. In other words, this was a spiritual quest as all journeys are, or should be."

Read more:

https://www.digitalfieldguide.com/blog/15572
9
Svenska grottor / Fjällmöte 2017
« Nyeste innlegg av Rolf 10.06.2017 09:53 »
"Årets fjällmöte kommer att äga rum mellan den 30 juli och 5 augusti.

Platsen blir i närheten av Övre Ältsvattnet, c:a 20 kilometers vandring från närmaste väg, exempelvis vid Mjölkbacken."

Se:

http://www.speleo.se
10
Grotte- og gruvenyheter / Grotter død i Torca de Arañaga, Galdames
« Nyeste innlegg av Rolf 08.06.2017 10:03 »
Grottereddere måtte gi opp forsøket på å hente ut en grotter som omkom da deler grotten kollapset.
Oppdraget ble for risikabelt for redningspersonalet.

 ""I'm sad that I can not recover my brother's body. But I can not think of a better place to rest his remains. "This is the answer offered by social networks Javier Gambino, brother of the young speleologist who died in the Torca de Arañaga, Galdames , after it became known that those responsible for the rescue operation of the body of Jose Antonio decided to finish their work Before the "high risk of collapse of the cave". Continuing with the rescue would have been a danger to the lives of the people who are collaborating in the rescue, reason why they decided to abandon the tasks of recovery of the corpse. ""

(beklager dårlig oversettelse med google translate)

Se:

http://espeleobloc.blogspot.no/2017/06/espeleoleg-mort-per-despreniment-de.html




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