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A magma chamber is a large pool of liquid rock beneath the surface of the Earth. The molten rock, or magma , in such a chamber is less dense than the surrounding country rock , which produces buoyant forces on the magma that tend to drive it upwards. [ 1 ]
Underground construction has a number of unique risks and challenges but shares a lot with traditional construction and mining. Underground construction workers often work under reduced light condition, in dangerous spaces, and are at a high risk of exposure to contaminants, fire, and explosions.
A hypogeum or hypogaeum (plural hypogea or hypogaea, pronounced / h aɪ p ɒ ɡ eɪ ə /; literally meaning "underground", from Greek hypo (under) and ghê (earth) [1]) is an underground temple or tomb. Hypogea will often contain niches for cremated human remains or loculi for buried remains. Occasionally tombs of this type are referred to as ...
The largest known room by surface is Sarawak Chamber, in the Gunung Mulu National Park (Miri, Sarawak, Borneo, Malaysia), a sloping, boulder strewn chamber with an area of 154,500 m 2 (1,663,000 sq ft). [20] The largest room in a show cave is the Salle de la Verna in the French Pyrenees.
Carlsbad Cavern includes a large limestone chamber, named simply the Big Room, which is almost 4,000 ft (1,220 m) long, 625 ft (191 m) wide, and 255 ft (78 m) high at its highest point. The Big Room is the largest chamber in North America and the 32nd largest in the world.
Just after 5 a.m. on August 30, water began flooding a vast underground chamber called the "cathedral" just north of Tokyo. The gushing water, captured by security cameras, was the rain that was ...
A burial vault is a structural stone or brick-lined underground tomb or 'burial chamber' for the interment of a single body or multiple bodies underground. The main difference between entombment in a subterranean vault and a traditional in-ground burial is that the coffin is not placed directly in the earth, but is placed in a burial chamber ...
Catacombs, although most notable as underground passageways and cemeteries, also house many decorations. There are thousands of decorations in the centuries-old catacombs of Rome , catacombs of Paris , and other known, some of which include inscriptions, paintings, statues, ornaments, and other items placed in the graves over the years.