This is impossible to answer with a finite number, because there may be undiscovered Kimberlite pipes in Botswana.
There are no known kimberlite or lamproite volcanic pipes in California. There are many serpentinite bodies present, but these are generally not volcanic pipes and are not of deep seated origin.
No. Most volcanoes do not have kilberlite. Kimberlite is a rather unusual form of igneous rock found primarily in kimberlite pipes.
Kimberlite pipes are typically quarried using open pit mines.
Diamonds are brought to the surface from the lower mantle by means of kimberlite pipes. Kimberlite pipes are only found within old cratonic crust, such as Africa.
A craton is 'an old and stable part of the lithosphere' -- the earth's crust. One class of inclusions in the formation of the earth's crust when subductions of crust were folded into the deep, kimberlite diamond areas that lie about 150-450 K below the surface. Diamonds as we know them are exploded to the earth's surface through kimberlite pipes, which are carrot shaped and widest at the surface. Although not all kimberlite pipes are sources for diamonds, most diamonds are found in areas where kimberlite pipes occur.
There are no known kimberlite or lamproite volcanic pipes in California. There are many serpentinite bodies present, but these are generally not volcanic pipes and are not of deep seated origin.
South Africa has the most kimberlite pipes. The link below has more inforamtion you might be interested in.
in kimberlite pipes. these happen in many parts of the world (including the U.S.) but they seem to be most concentrated in southern africa.
No. Most volcanoes do not have kilberlite. Kimberlite is a rather unusual form of igneous rock found primarily in kimberlite pipes.
Kimberlite pipes are typically quarried using open pit mines.
All diamonds are formed from carbon. Kimberlite and diamonds are both erupted to the earth's surface via volcanic pipes. Kimberlite is an indicator mineral, increasing odds for geologists that a volcanic pipe includes diamonds: not all pipes erupt diamonds with kimberlite. Kimberlite can be considered a 'neighbor' or 'kin' of diamond, but not a source.
In 'kimberlite pipes' which are volcanic vents deep underground in South Africa, Brazil, Canada, Australia and India. Also in river sediments the flow over these pipes, and kimberlite pipes in other parts of Africa.
Diamonds are brought to the surface from the lower mantle by means of kimberlite pipes. Kimberlite pipes are only found within old cratonic crust, such as Africa.
A craton is 'an old and stable part of the lithosphere' -- the earth's crust. One class of inclusions in the formation of the earth's crust when subductions of crust were folded into the deep, kimberlite diamond areas that lie about 150-450 K below the surface. Diamonds as we know them are exploded to the earth's surface through kimberlite pipes, which are carrot shaped and widest at the surface. Although not all kimberlite pipes are sources for diamonds, most diamonds are found in areas where kimberlite pipes occur.
They are Intrusive forming unique vertical pipes in the earth's crust.
Apparently kimberlite pipes -- that can contain diamonds -- are volcanic formations that begin deep within the earth's mantle. Because diamonds and kimberlite -- and other semi-precious gems -- are formed in similar locations, some kimberlite rock contains diamonds. You can read more, below.
Kimberlite pipes, the best source of mined diamonds today, erupt to the earth's surface like any volcano. You can read more about this morphology and volcanology, below.