If the question is, "which natural cave gets closest to the earth's center?", then that cave is bound to be located near one of the earth's poles. The earth's polar circumference is about 21,600 miles, while its equatorial circumference is about 24,900 miles. That means that sea level at either pole is about 500 miles closer to the earth's center than is sea level at the equator - a pretty insurmountable head start.
On 7/21/05, Pat Kambesis <[email protected]> wrote: > > The deepest cave, where ever it is these days would have to be somewhere on > the earth's lithospheric crust which has a maximum thickness of about 22 > miles (current deepest cave is 2km in vertical extent). From the bottom of > the crust to the earth's core is about 1800 some miles and then another 1700+ > miles to the earth's center. Everything below the crust is hot molten rock > which is definitely not a good place to find caves. > > Probably the deepest hole in the ground might be the diamond mines in Africa > - some are as much as 2 miles deep > > pk > > To unsubscribe, send an e-mail to mailto:[email protected] > with the following message--unsubscribe cavetex. For help and > information go to www.cavetex.net. > List administrator: mailto:[email protected] > To unsubscribe, send an e-mail to mailto:[email protected] with the following message--unsubscribe cavetex. For help and information go to www.cavetex.net. List administrator: mailto:[email protected]
