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    10 Geological Wonders you didn’t know

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    SPADEZ
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    10 Geological Wonders you didn’t know

    Post by SPADEZ on Sun Aug 01, 2010 11:47 pm



    Chocolate Hills (Philippines)

    Composed
    of around 1,268 perfectly cone-shaped hills of about the same size
    spread over an area of more than 50 square kilometres (20 sq mi), this
    highly unusual geological formation, called Chocolate Hills, is located
    in Bohol, Philippines. There are a number of hypotheses regarding the
    formation of the hills. These include simple limestone weathering,
    sub-oceanic volcanism, the uplift of the seafloor and a more recent
    theory which maintains that as an ancient active volcano
    self-destructed, it spewed huge blocks of stone which were then covered
    with limestone and later thrust forth from the ocean bed.

    Wave Rock (Australia)

    The
    Wave Rock is a natural rock formation located in western Australia. It
    derives its name from the fact that it is shaped like a tall breaking
    ocean wave. The total outcrop covers several hectares; the "wave" part
    of the rock is about 15 meters high and approximately 110 meters long.
    One aspect of Wave Rock rarely shown on photographs is the retaining
    wall about halfway up the rock. This follows the contours and allows
    rainwater to be collected in a dam. It was constructed in 1951 by the
    Public Works Department, and such walls are common on many similar rocks
    in the wheatbelt.

    Hell Gate (Uzbekistan)

    Called
    by locals The Door to Hell, this place in Uzbekistan is situated near
    the small town of Darvaz. When geologists were drilling for gas, 35
    years ago, they suddenly found an underground cavern that was so big,
    all the drilling site with all the equipment and camps got deep deep
    under the ground. None dared to go down there because the cavern was
    filled with gas, so they ignited it so that no poisonous gas could come
    out of the hole, and since then, it has been burning. Nobody knows how
    many tons of excellent gas has been burned for all those years but it
    just seems to be infinite

    Giants Causeway (Ireland)

    An
    area of about 40,000 interlocking basalt columns, the Giants Causeway
    is a result of an ancient volcanic eruption. Located on the north-east
    coast of Northern Ireland, most of its columns are hexagonal, although
    there are also some with four, five, seven and eight sides. The tallest
    are about 12 meters (36 ft) high, and the solidified lava in the cliffs
    is 28 meters thick in places. In a 2005 poll of Radio Times readers, the
    causeway was named as the fourth greatest natural wonder in the United
    Kingdom.

    Blue Lake Cave (Brazil)

    Mato
    Grosso do Sul region in Brazil (and especially the quiet town of
    Bonito) boasts many marvelous underground lakes: Gruta do Lago Azul,
    Gruta do Mimoso, Aquário Natural. The world famous "Gruta do Lago Azul”
    (Blue Lake Cave) is a natural monument whose interior is formed by
    stalactites, stalagmites and a huge and wonderful blue lake. The beauty
    of the lake is something impressive. The Blue Lake Cave has a big
    variety of geological formation but impresses mainly for the deep blue
    colored water of its inside lake.

    Eye of the Sahara (Mauritania)

    This
    spectacular landform in Mauritania in the southwestern part of the
    Sahara desert is so huge with a diameter of 30 miles that it is visible
    from space. Called Richat Structure --or the Eye of the Sahara-- the The
    formation was originally thought to be caused by a meteorite impact but
    now geologists believe it is a product of uplift and erosion. The cause
    of its circular shape is still a mystery.

    Crystal Cave of the Giants (Mexico)

    Found
    deep inside a mine in southern Chihuahua Mexico, these crystals were
    formed in a natural cave totally enclosed in bedrock. A geode full of
    spectacular crystals as tall as pine trees, and in some cases greater in
    circumference, they are a translucent gold and silver in color and come
    in many incredible forms and shapes. The Crystal Cave of the Giants was
    discovered within the same limestone body that hosts the
    silver-zinc-lead ore bodies exploited by the mine and it was probably
    dissolved by the same hydrothermal fluids that deposited the metals with
    the gypsum being crystallized during the waning stages of
    mineralization.

    Great Blue Hole (Belize)

    Part
    of the Lighthouse Reef System, The Great Blue Hole lies approximately
    60 miles off the mainland out of Belize City. A large, almost perfectly
    circular hole approximately one quarter of a mile (0.4 km) across, it’s
    one of the most astounding dive sites to be found anywhere on earth.
    Inside this hole, the water is 480 feet (145 m) deep and it is the depth
    of water which gives the deep blue color that causes such structures
    throughout the world to be known as "blue holes."

    Antelope Canyon (Arizona - USA)

    The
    most visited and photographed slot canyon in the American Southwest,
    the Antelope Canyon is located on Navajo land near Page, Arizona. It
    includes two separate, photogenic slot canyon sections, referred to
    individually as Upper Antelope Canyon --or “The Crack”-- and Lower
    Antelope Canyon --or “The Corkscrew.”

    The Navajo name for Upper
    Antelope Canyon is Tse' bighanilini, which means "the place where water
    runs through rocks." Lower Antelope Canyon is Hasdestwazi, or "spiral
    rock arches." Both are located within the LeChee Chapter of the Navajo
    Nation.

    The Wave (between Arizona and Utah - USA)

    A
    red-rock stunner on the border of Arizona and Utah, The Wave is made of
    190-million-year-old sand dunes that have turned to rock. This
    little-known formation is accessible only on foot via a three-mile hike
    and highly regulated.

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