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A volcanic plug, also called a volcanic neck or lava neck, is a volcanic object created when magma hardens within a vent on an active volcano. When present, a plug can cause an extreme build-up of high gas pressure if rising volatile -charged magma is trapped beneath it, and this can sometimes lead to an explosive eruption.
A partly submerged glacier cave on Perito Moreno Glacier. The ice facade is approximately 60 m high Ice formations in the Titlis glacier cave. A glacier cave is a cave formed within the ice of a glacier. Glacier caves are often called ice caves, but the latter term is properly used to describe bedrock caves that contain year-round ice. [1]
An ice cave is any type of natural cave (most commonly lava tubes or limestone caves) that contains significant amounts of perennial (year-round) ice. At least a portion of the cave must have a temperature below 0 °C (32 °F) all year round, and water must have traveled into the cave’s cold zone.
Ice caves offer dazzling places to explore, but climate change is taking a toll. Here are some of the most jaw-dropping ice caves, past and present, from around the world.
Mother nature is showing off for photographers taking these impressive photos inside the crystal caves in Iceland's Vatnajokull glacier. When the sun rises or sets outside or if you start a fire ...
The Mer de Glace ice cave (French: Grotte de glace de la Mer de Glace) is an artificial ice cave in the French department of Haute-Savoie, on the Mont Blanc massif of the French Alps. The cave, which is situated within the Chamonix valley , on the Mer de Glace glacier, has been dug out every year since the middle of the 19th century.
Strong winds tend to push ice higher and higher as ice piles build to five, ten, even 20 feet or more. Waves then carve out spectacular crevices and the freezing spray creates icicle-like formations.
Creswell Crags is an enclosed limestone gorge on the border between Derbyshire and Nottinghamshire, England, near the villages of Creswell and Whitwell.The cliffs in the ravine contain several caves that were occupied during the last ice age, between around 43,000 and 10,000 years ago.