Ochtinská Aragonite Cave

Ochtinská Aragonite Cave

Caves

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The Ochtinská Aragonite Cave , inwards southern Slovakia , is i of the few caves inwards the basis where aragonite crystals are found. There is i inwards the Czechia (Zbrašov aragonite caves) too other caves are located inwards Brazil , Argentine Republic , United Mexican States too the U.S.A. of America , but the aragonite fillings inwards Ochtinská Aragonite Cave is yesteryear far the virtually beautiful.

Aragonite is a naturally occurring crystal bird of calcium carbonate , the same mineral that forms the to a greater extent than commonly available calcite. While calcite forms huge lumpy blocks , aragonite crystals are columnar or fibrous. In Ochtinská Aragonite Cave , they grow inwards twisted , needle similar formations that await similar a bunch of tangled hair. These structures are real frail too tin interruption at the slightest touch. Crystal structures such every bit these are known every bit helictites , too to this solar daytime , in that place has been no satisfactory explanation for how they are formed.

Photo credit: Traveltipy/Flickr

A helictite starts out every bit a tiny stalactite — those icicle-shaped formation that hangs from the ceiling of a cave. They are formed yesteryear the atmospheric precipitation of minerals —calcium carbonate , inwards this case— dissolved inwards H2O that drip downwards through the porous rocks of the cave ceiling. But instead of growing vertically downwards , the stalactite starts to wander , twisting too turning every bit it grows. Sometimes the stalactite volition grow unremarkably but a divulge of secondary beginning similar growths volition popular out from the sides.

What causes the stalactite to interruption bird is even too hence a mystery , although in that place are a few theories. Capillary forces powerfulness travel responsible for drawing H2O along paths against gravity. Or the air current powerfulness blow the stalactites to dissimilar directions. But these theories are problematic. The bulk of helictites are non hollow , too hence capillary forces can’t deed , too many caves convey no entrance where air current could enter.

The Ochtinská Aragonite Cave was discovered accidentally inwards 1954. While looking for Fe ore , explorers dug through the basis too stumbled upon the cave. Prior to its regain , the cave had no natural entrances. Since it opened to Earth inwards 1972 , nearly xxx ,000 people has been visiting the cave each twelvemonth to appreciate the rare beauty of its crystals. The virtually impressive is Galaxy Hall which is covered alongside white bunches of aragonite , glowing inwards the lamplight similar stars inwards the nighttime sky. Some of the oldest aragonite crystals at Ochtinská are 138 ,000 years old.

Photo credit: Jean-Marie Prival/Flickr

Photo credit: Jean-Marie Prival/Flickr

Photo credit: Peter Fenda/Flickr

Photo credit: Erwin/Flickr

Photo credit: Traveltipy/Flickr

Photo credit: Jean-Marie Prival/Flickr

Sources: www.slovakia.com / www.go2slovakia.eu / Wondermondo / Wikipedia

15000-Year-Old Bison Sculptures at Tuc D'Audoubert Cave

15000-Year-Old Bison Sculptures at Tuc D'Audoubert Cave

Caves

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“Oh my God” , I exclaimed. What a moment. What an impact. I could non believe my eyes. The Bison are incredibly beautiful , incredibly powerful , as well as immensely amount of Religious Purpose. The Cow is railroad train as well as the Bull is scenting the air. The deed of excogitation is well-nigh to endure fulfilled , as well as a novel Life is well-nigh to endure created. — John Robinson , for the Bradshaw Foundation.

The 3 teenage Bégouen brothers must accept felt the same when they stumbled upon the sublime sculptures of the bison spell exploring the Tuc d'Audoubert cave inwards southwest French Republic , inwards 1912. Radiocarbon dating tells us that the sculptures are fifteen ,000 years old.

The Tuc d'Audoubert cave is located inwards the commune of Montesquieu-Avantes inwards the Ariege division of the key Pyrenees , inwards southwest France. It is role of a network of subterranean passageways which is divided into 3 caves— the Tuc d'Audoubert cave inwards the west; the Trois Freres Cave inwards the center; as well as Enlene Cave inwards the east. These 3 caves contains a multifariousness of prehistoric artwork including stone engravings , cave icon as well as sculpture , of which the best known is the beautifully carved relief sculpture of a couplet of bison.

The bison reliefs are 2 feet inwards length , 18 inches inwards elevation as well as well-nigh 3-4 inches deep. They are modeled inwards clay , as well as their surface was given a moisture complete inwards gild to brand them smooth. The marks of the artist's mitt as well as the tools used to depict the details of the aspect upwards as well as mane are yet clearly visible. The bison’s shaggy mane as well as beard seem to endure carved alongside a tool , but the jaws are traced yesteryear the sculptor's fingernail. Both animals are supported yesteryear a key stone , as well as are unbelievably good preserved although they accept suffered simply about drying out , which has caused simply about cracks to seem across their bodies. Also inwards the bedroom are 2 other bison figures , both engraved on the ground. The sculptures are located well-nigh 650 meters from the entrance to the cave.

The Tuc d'Audoubert cave has been known since the belatedly 17th or early on 18th century , although the bison reliefs were non discovered until 1912. The 3 caves are owned yesteryear the identify unit of measurement of Count Begouen. The site is straight off shut to Earth inwards gild to forestall impairment from tourists.

Sources: Bradshaw Foundation / www.visual-arts-cork.com

A Mysterious Ice Cave That Produces Ice Only During Summer

A Mysterious Ice Cave That Produces Ice Only During Summer

Caves

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About 4 miles E of Coudersport , inwards the town of Sweden , inwards Potter County , Pennsylvania , lies the most puzzling geological anomaly. It’s a small-scale cave , or a pit , amongst an eight-feet-wide yesteryear ten-feet-long opening inwards the ground. At the bottom of the forty-foot deep chasm is a layer of ice. Large icicles standard upwards to 25 feet long too oftentimes upwards to iii feet thick hangs from the sides too but below the cave’s mouth.

This is the Coudersport Ice Mine , i of nature’s many ice-manufacturing plants. However , different regular H2O ice caves that degree alone inwards wintertime , the H2O ice inwards Coudersport Ice Mine forms during the warmest flavor of the year. The H2O ice starts to degree inwards boundary , increasing inwards book equally the weather condition gets hotter too hotter. When wintertime arrives too in that location is snowfall too H2O ice everywhere , too when it would appear to last the most natural fourth dimension for H2O ice formation , the H2O ice inwards Coudersport Ice Mine melts away to nothing.

Photo credit: rivercouple75/Tripadvisor

What causes this bizarre conduct is largely a mystery , but the electrical flow prevailing theory states that during wintertime , mutual coldness air slips into the middle of the mount through cracks inwards the stone formation , too due to the odd interconnection of the crevices hither , that mutual coldness air gets concentrated into chambers such equally this one. When this mutual coldness air comes inwards contact amongst percolating groundwater , H2O ice is formed. This happens alone during boundary too summertime because of the availability of groundwater during these seasons.

As wintertime approaches , the mount i time once to a greater extent than starts taking mutual coldness air too slow pushes out the warm air that had larn trapped inwards the rocks from the preceding summer. As the warm escapes through the H2O ice cave , it melts the H2O ice from the summer.

The Coudersport Ice Mine was discovered inwards 1894 yesteryear a silvery prospector named  John Dodd , too the mysterious annual phenomenon had perplexed him. According to an article published inwards March 1913 , inwards Popular Science Monthly , Dodd had conducted a few experiments of his own:

He says that 2 sticks of dynamite were placed close 8 feet dorsum into a crevice at the bottom of the shaft too fired without turning a stone or dislodging whatsoever populace inwards the shaft. Influenza A virus subtype H5N1 possible decision is that in that location is a cave underneath the mine large plenty to absorb the stupor of the explosion.

Later , Dodd made an opening inwards the hillside x feet deep yesteryear 20 across , too institute crevices inwards the stone from which he collected H2O ice weighing 20 too twenty-five pounds. These crevices are the ones that mayhap trap too convey mutual coldness air into the H2O ice cave. Dodd’s litter experiment besides shows that H2O ice forms non alone within the cave but within the crevices equally well.

The mine was relatively unknown at the fourth dimension the article was published. Today , it’s a curious footling attraction. While you lot can’t expire into the cave itself , you lot tin can hit get together closed to a wooden platform too lean over the metallic railing that surrounds a small-scale opening lead over the H2O ice mine too relish the whiffs of cool breeze that comes from below.

Photo credit: www.pri.org

Sources: Wikipedia / www.pri.org / Mother Nature Network / Popular Science Monthly

The Catacombs of Odessa

The Catacombs of Odessa

Caves

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Underneath the metropolis of Odessa , inwards Ukraine , is an extensive network of tunnels believed to endure the largest catacomb organisation inwards the world. Largely unmapped in addition to spread haphazardly nether the metropolis , the huge maze of hole-and-corner passages extends for over 2 ,500 kilometers. If it were position out inwards a postulate trouble the tunnels would compass all the agency to Paris. Incidentally , Paris is also the house where the world's instant largest catacombs are located. But Odessa’s catacombs are 5 times longer than those inwards Paris.

It’s hard to tell when earthworks underneath Odessa outset started precisely the catacombs were greatly expanded starting from the slowly 18th century , when Catherine the Great ordered this novel port metropolis to endure built past times the sea. An incredible total of mining took house to extract limestone to construct the metropolis inwards a higher house ground. The tunnels were dug to a greater extent than than a hundred feet below reason on 3 dissimilar levels. New shafts were created whenever onetime ones ran out of limestone , in addition to it was through this procedure an intricate spider web of tunnels began to accept shape.

The Bohemian Blog / www.ukraine.com / wol.jw.org

The Forgotten Tunnel Under Naples Filled With Vintage Cars

The Forgotten Tunnel Under Naples Filled With Vintage Cars

Caves

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One hundred as well as l meters from the large public foursquare of Piazza del Plebiscito inward primal Naples , Italy , is an entrance that descends nearly 30 meters nether the dry reason to the brusk Bourbon Tunnel , consisting of approximately 530 meters of giant passageways , huge caves as well as narrow culverts. Built inward the pump of the 19th century , the tunnel was largely forgotten subsequently the destination of the Second Word War , until its rediscovery inward the early on 2000s.

The tunnel was conceived equally an escape road from the Royal Palace , past times the as well as thence King of the Two Sicilies , Ferdinand II of Bourbon , who was extremely paranoid nearly beingness overthrown past times the riot-happy public of Sicily as well as Naples , during the tumultuous Napoleonic period. Since 1816 , in that place had been iii revolutions against the Bourbon dominion , as well as a really trigger-happy i inward 1848 , where the revolutionists seized the kingdom for sixteen months. After coming dorsum to ability inward 1849 , Ferdinand II hastily rewrote a novel constitution as well as began making plans for a security escape should the people ascent inward revolt again.

www.nola.com / BBC

The Hell’s Bells of Cenote Zapote

The Hell’s Bells of Cenote Zapote

Caves

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Deep below the surface , within the H2O filled caverns of Cenote Zapote inwards Mexico's Yucatan Peninsula , stalactites grow into foreign shapes. Instead of their typical pointed tips , the stalactites hanging downward from the roofs at Cenote Zapote bring a blown out oral fissure similar that of a bell. They bring been called variously equally hell’s bells , elephant feet , shower heads or trumpets.

The phenomenon of hell’s bell is non understood. How were they formed , or why at that spot are no other dive sites where these structures tin hold upwards found? Hell’s bell is believed to hold upwards a form of folia formation , that are ordinarily flora only below the H2O line. The bells could bring developed out of folia equally the H2O tabular array changed since the final H2O ice age. But the machinery of folia formation itself is non fully understood together with is the champaign of report of an ongoing debate.

Photo credit: inspiredtodive.com

Cenote Zapote is located due west of Puerto Morelos inwards Mexico's Yucatan Peninsula. The sinkhole took its advert from the Sapote trees growing around.

The hell’s bell formations are located at a depth of close thirty meters.

Photo credit: inspiredtodive.com

Photo credit: inspiredtodive.com

Photo credit: inspiredtodive.com

Sources: Inspired to Dive / www.sciencedirect.com / Diving-caves.com

Gilmerton Cove of Edinburg

Gilmerton Cove of Edinburg

Caves

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Just a few meters beneath the streets of Gilmerton , an ex-mining hamlet on the southern border of the metropolis of Edinburgh , inwards Scotland , lies a serial of hugger-mugger passageways in addition to chambers hand-carved from sandstone. The Gilmerton Cove , every minute it is called , has been known for centuries , only its historic current in addition to utilization has been baffling people for generations.

The traditional theory is that the Cove was the function of George Paterson , a local blacksmith who is said to bring completed this hugger-mugger abode menage inwards 1724 later 5 years of difficult labor. His subterranean identify had intricately carved rock tables in addition to benches , skylights , drainage gutters , including a mysterious , deep , vertical pit. It is known that George Paterson used the caverns every minute a tavern , in addition to many of the town’s gentlemen descended below the Blue Planet covertly to potable during Sabbath. But archeological studies conducted at the plow of the concluding century suggests that Gilmerton Cove was excavated long earlier George Paterson’s days.

philipcoppens.com