On the distribution of zirconium and hafnium in the Skaergaard intrusion, East Greenland

Details On the distribution of zirconium and hafnium in the Skaergaard intrusion, East Greenland On the distribution of zirconium and hafnium in the Skaergaard intrusion, East Greenland

Mar 1969

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1969gecoa..33..357b&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 33, Issue 3, pp.357-374

Physics

9

Scientific paper

Twenty-five determinations of Zr and eleven of Hf, together with a number of analyses of separated minerals, are reported for a series of representative samples from the Skaergaard intrusion. These show that in the successive residual liquids there was a marked increase in both the Zr and Hf concentrations, together with a slight but significant rise in the Zr / Hf ratio, similar to that normally found in alkaline rocks. This is attributed to a very low state of polymerisation in these liquids, caused principally by a build-up of volatiles as crystallisation proceeded, and also their characteristic chemical constitution.

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