New U-Pb zircon ages of the Sandbian (Upper Ordovician) "Big K-bentonite" in Baltoscandia (Estonia and Sweden) by LA-ICPMSBauert, Heikki; Isozaki, Yukio; Holmer, Lars Erik; Aoki, Kazumasa; Sakata, Shuhei; Hirata, TakafumiGFF2014 / p. 30-33 : ill https://doi.org/10.1080/11035897.2013.862854 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS