Origin of the anomalous Ar-40 - Ar-39 age of Zaire cubic diamonds - Excess Ar-40 in pristine mantle fluids

Details Origin of the anomalous Ar-40 - Ar-39 age of Zaire cubic diamonds - Excess Ar-40 in pristine mantle fluids Origin of the anomalous Ar-40 - Ar-39 age of Zaire cubic diamonds - Excess Ar-40 in pristine mantle fluids

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989natur.337..226o&link_type=abstract

Nature (ISSN 0028-0836), vol. 337, Jan. 19, 1989, p. 226-229. Research supported by MOESC.

Mathematics

Logic

13

Argon Isotopes, Cubic Lattices, Diamonds, Earth Mantle, Geophysical Fluids, Radioactive Age Determination, Potassium Isotopes, Zaire

Scientific paper

Cubic diamonds from Zaire show excellent correlations between potassium content and Ar-40/Ar-36 ratio, and between Ar-40/Ar-36 and Ar-39/Ar-36, which can be interpreted to yield an 'isochron' age of about 6 Gyr. Now the discovery of a correlation between chlorine content and Ar-40, together with recent mineralogical and geochemical work concerning the origin of cubic diamonds, strongly suggests that the Ar-40 is an excess component which has no age significance, and that the Ar-40 and its associated potassium are contained in submicrometer inclusions of mantle-derived fluid.

Affiliated with

Also associated with

No associations

Rating

Origin of the anomalous Ar-40 - Ar-39 age of Zaire cubic diamonds - Excess Ar-40 in pristine mantle fluids does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Origin of the anomalous Ar-40 - Ar-39 age of Zaire cubic diamonds - Excess Ar-40 in pristine mantle fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Origin of the anomalous Ar-40 - Ar-39 age of Zaire cubic diamonds - Excess Ar-40 in pristine mantle fluids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-828122