Minor and trace element composition and age of Yukon probable-microtektites

Details Minor and trace element composition and age of Yukon probable-microtektites Minor and trace element composition and age of Yukon probable-microtektites

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993lpi....24..163b&link_type=abstract

In Lunar and Planetary Inst., Twenty-fourth Lunar and Planetary Science Conference. Part 1: A-F p 163-164 (SEE N94-12015 01-91)

Other

Drops (Liquids), Fluorine, Geochronology, Meteoritic Composition, Rare Earth Elements, Sediments, Tektites, Trace Elements, Yukon Territory, Chondrites, Electron Probes, Geochemistry, Glass, Ion Probes, Shales, Sulfur

Scientific paper

Major, minor, and trace element composition of the candidate micro tektites from Yukon Territory suggest a possible impact site of hydrothermally altered limestone and sand or chert, or possibly a carbonatite. Their REE/chondrite curve is similar in character to, but higher than, shale composites of North America, Australia, and Europe. Relative to these same composites, the Yukon droplets are enriched in Y, F, S, Sr, P, Mn, Mg, and Ca. They are depleted in Rb, Li, Th, Nb, Ti, K, Na, Fe, Si, and Al. Biostratigraphic constraints on the droplets indicate they are Middle to Late Devonian, more likely Middle Devonian, in age.

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