Hacked adult webcam list - Carbon dating real age earth

These two different source of carbon have measurably different —150 km (93 mi) or more (three times or more the depth of source magma for most volcanoes). These typically small surface volcanic craters extend downward in formations known as volcanic pipes.The pipes contain material that was transported toward the surface by volcanic action, but was not ejected before the volcanic activity ceased.This is because cratons are very thick, and their lithospheric mantle extends to great enough depth that diamonds are stable.

carbon dating real age earth-75

Diamonds are brought close to the Earth's surface through deep volcanic eruptions by magma, which cools into igneous rocks known as kimberlites and lamproites.

Diamonds can also be produced synthetically in a HPHT method which approximately simulates the conditions in the Earth's mantle.

Diamonds are thought to have been first recognized and mined in India, where significant alluvial deposits of the stone could be found many centuries ago along the rivers Penner, Krishna and Godavari.

Diamonds have been known in India for at least 3,000 years but most likely 6,000 years.

Small amounts of defects or impurities (about one per million of lattice atoms) color diamond blue (boron), yellow (nitrogen), brown (lattice defects), green (radiation exposure), purple, pink, orange or red.

Diamond also has relatively high optical dispersion (ability to disperse light of different colors).Those properties determine the major industrial application of diamond in cutting and polishing tools and the scientific applications in diamond knives and diamond anvil cells.Because of its extremely rigid lattice, it can be contaminated by very few types of impurities, such as boron and nitrogen.) is a metastable allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice.Diamond is less stable than graphite, but the conversion rate from diamond to graphite is negligible at standard conditions.The most familiar uses of diamonds today are as gemstones used for adornment, a use which dates back into antiquity, and as industrial abrasives for cutting hard materials.

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