A diamond trilogy: superplumes, supercontinents, and supernovae.

Details A diamond trilogy: superplumes, supercontinents, and supernovae. A diamond trilogy: superplumes, supercontinents, and supernovae.

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999sci...285..851h&link_type=abstract

Science, Vol. 285, No. 5429, p. 851 - 860

Astronomy and Astrophysics

Astrophysics

28

Diamonds: Earth, Diamonds: Supernovae, Diamonds: Solar System

Scientific paper

Diamond is a remarkable mineral and has been long recognized for its unusual physical and chemical properties. This diversity is even greater than formally appreciated because diamond is recognized as an extraordinary recorder of astrophysical and geophysical events that extend from the far reaches of space to Earth's deep interior. Many diamonds are natural antiques that formed in presolar supernovae by carbon vapor deposition, in asteroidal impacts and meteorite craters by shock metamorphism, and in Earth's mantle 1 to 2 billion years after planetary accretion from fluids and melts. The carbon diamond is primordial, but there are unexplained isotopic fractionations and uncertainties in heterogeneity.

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