er—somet been t possible.
Because see into to use otecly involvereading ravel terior. e also knotle bit about tlefrom e pipes, fires, in effect, a cannonball of magma to t supersonic speeds. It is a totally random event. A kimberlite pipe could explode inyour backyard as you read to 120 milesdoe pipes bring up all kinds of t normally found on or near tite, crystals of olivine, and—just occasionally, in about one pipein a s of carbon comes up e ejecta, but most isvaporized or turns to grape. Only occasionally does a s up at just tspeed and cool doness to become a diamond. It ive diamond mining city in t t kno. Geologists kno someern Indiana t may be trulycolossal. Diamonds up to ty carats or more scattered sites tt no one es, it may be buriedunder glacially deposited soil, like ter in Io Lakes.
So tle. Scientists aregenerally agreed t ter crust, amantle of , viscous rock, a liquid outer core, and a solid inner core.
1e kno ted by silicates, for t’s overall density. t be uff inside. e kno togenerate our magnetic field some be a concentrated belt ofmetallic elements in a liquid state. t muc everyt—eract, o bet any time in ture—is a matter of at least some uncertainty, and generallyquite a lot of uncertainty.
Even t of it , is a matter of some fairly strident debate.
Nearly all geology texts tell you t continental crust is to six miles t ty-five miles tinents, and forty to sixty miles tain c ties ions. t beneatains, for instance, is only aboutnineteen to ty-five miles to quicksand. (Some people tailed picture of terior, o 40 km (25 mi) is t. From 40 to 400 km (25 to 250 mi) is tle. From 400 to 650 km (250 to 400 mi) is a transition zone betle.
From 650 to 2,700 km (400 to 1,700 mi) is tle. From 2,700 to 2,890 km (1,700 to 1,900 mi) is t;Dquot; layer. From 2,890 to 5,150 km (1,900 to 3,200 mi) is ter core, and from 5,150 to 6,378 km (3,200 to3,967 mi) is the inner core.
its crust are questions t divide geologists i