Project Mohole Totally Explained

Everything about Project Mohole totally explained

Project Mohole was an ambitious attempt to drill through the Earth's crust into the Mohorovičić discontinuity, and to provide an Earth science complement to the high profile Space Race. It was led by the American Miscellaneous Society with funding from the National Science Foundation. Phase One was executed in spring 1961. Off the coast of Guadalupe, Mexico, five holes were drilled, the deepest at 183 m (601 ft) below the sea floor in 3,500 m (11,700 ft) of water. This was unprecedented: not in the hole's depth but because of the depth of the ocean and because it was drilled from an untethered platform. Also, the core sample proved quite valuable, showing Miocene age sediments with the lowest 13 m (44 ft) consisting of basalt.
   Project Mohole contracted with Global Marine of Los Angeles for the use of its oil drillship called CUSS I. A consortium of Continental, Union, Superior and Shell Oil Companies (CUSS) had originally developed it in 1956 as a technological test bed for the nascent offshore oil industry. While "CUSS I" was one of the first vessels in the world capable of drilling in water depth up to 600 ft, Project Mohole expanded its operational range by virtually inventing what is now known as dynamic positioning.
   Phase One proved that both the technology and expertise were available to drill into the Earth's mantle. However, Mohole--Phase Two was dissolved in 1966 due to poor management and cost overruns.
   Japan now has a new project with the same goal, Chikyu Hakken.

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