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1994
It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.
Some results of U-Pb and Rb-Sr dating of spodumenic granosyenite-porphyry in the Alakhinskii Stock in the Gorny Altai region are presented. Both isotope methods have equally indicated the Jurassic period. This may be regarded as conclusive proof of intrusive activity in the Altai-Sayan region during that epoch.