10 Kasım 2012 Cumartesi

Mantle Borehole Test

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 We are attempting to drill ten kilometers below the ocean floor inorder to sample the mantle. The history of deep cores is listed hereand we learn that the Moho discontinuity is fractured rock the iswater saturated but also saturated with hydrogen gas. This isunexpected and suggestive. Recall Tommy Gold and his efforts to showthe planet is out gassing methane at the least. This infers ahydrogen supply that can feed natural traps.
Thus any natural geological trap needs to be at least consideredalthough hydrogen will unfortunately escape too handily.
This project will run for several years until we have results.
Deep drillingproject digs into Earth’s structure and past
By Scott Sutherland
http://ca.news.yahoo.com/blogs/geekquinox/deep-drilling-project-digs-earth-structure-past-003548158.html
An internationalmarine research program, known as the Integrated Ocean DrillingProgram (IODP), is planning to drill down almost 10 kilometresbelow the ocean floor in an attempt to reach the Earth's mantle. Thegoal is to bring back uncontaminated samples of mantle rock forstudy, which should help to give us a better understanding of Earth'sstructure and formation.
Although we know alot about the interior of the planet, none of what we know is fromdirect study of the layers below the crust. We know what we do bystudying four different things: how vibrations from earthquakes passthrough the planet, the rotation and inertia of the Earth, the studyof the Earth's magnetic field and laboratory experiments that testedsome of the processes that were thought to be going on in both themantle and core.

Previous attempts havebeen made to drill down to the mantle.

Project Mohole wasa U.S.-led effort in the 1960s that tried to reach the MohoroviÄ�ićdiscontinuity, which is the boundary between the Earth's crust andthe mantle (named for the seismologist that discovered it). Theattempt only drilled down to 183 m below the ocean floor — offthe coast of the Guadalupe Island, Mexico — before the U.S.Congress canceled the project for being too expensive.
The KolaSuperdeep Borehole (KTB) was a Russian project that ran for 35years, from 1970 to 2005, before being shut down by the Russiangovernment, also for being too expensive. The project still holds theworld record for deepest hole ever drilled and deepest artificialpoint on Earth, which it set in 1989. Two other projects surpassed itas 'deepest bore hole', first in 2009 and then in 2011. The KTBproject found some surprising results in its attempt, includingthat the rocks in the MohoroviÄ�ić discontinuity, which theyexpected to show a transition between granite and basalt rock, areactually fractured and saturated with water, and the discovery of mudflowing to the surface of the hole that was saturated with hydrogengas.
The IODP's mission toreach the mantle is being run from the Japanese ship ChikyÅ«,which has already set a new record for deepest scientific oceandrilling, reaching 2,466 m below the ocean floor on September 9th. Ifthe IODP succeeds, likely in 2020, it will bring back the firstuncontaminated samples of mantle rock, something that has been longsought after by scientists. The closest so far has been samplesfrom volcanoes, but those are either contaminated by sea water or bymagma from closer to the surface.
Canada has beeninvolved in ocean drilling projects since 1995, when it joined theOcean Drilling Program, and has been a member of the IODP since 2004.

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