Earth's mantle extends to a depth of 2,890 km, making it the thickest layer of Earth
. The mantle is divided into upper and lower mantle.
Apr 7, 2005 ... Hole Drilled to Bottom of Earth's Crust, Breakthrough to Mantle Looms. By Robert
Roy Britt ... The depth of the Moho varies. This latest effort ...
The earth's crust is between three to five miles deep under the oceans (oceanic
crust) and about 25 miles deep under the continents (continental crust). This is ...
The plan is to go right through the Earth's crust, the rocky top layer of the planet,
... In this article, we'll explain the difficulty of digging such a deep hole, and what ...
The first 35 km or so of digging would be through the outer crust of the Earth. ...
the world is the TauTona gold mine in South Africa, a mere 3.6 kilometers deep.
Earthquakes occur in the crust or upper mantle, which ranges from the earth's
surface to about 800 kilometers deep (about 500 miles). The strength of shaking
Jan 25, 2016 ... Geologists have had to contend with bad luck, budget cuts and the race to the
moon in their efforts to drill deep into our planet.
Mar 14, 2014 ... Chemically bonded to minerals in the transition zone, Earth's mantle may be
Oct 2, 2012 ... Humans have reached the moon and are planning to return samples from Mars,
but when it comes to exploring the land deep beneath our feet, ...
www.ask.com/youtube?q=How Deep Is The Earth Crust?&v=jkD_1MAgcgE
Mar 6, 2014 ... This hole was drilled by the Soviet Union from 1970 -- 1989 in an attempt to drill
as far as possible into the earth's crust. They had to stop when ...