Areal variations in the composition of the Kinnekulle altered volcanic ash bed (Caradoc) - relations to sedimentary faciesKiipli, Tarmo; Kallaste, Toivo; Kiipli, EnliWOGOGOB-2004 : 8th Meeting of the Working Group on the Ordovician Geology of Baltoscandia : May 13-18, 2004, Tallinn and Tartu, Estonia : conference materials : abstracts and field guidebook2004 / p. 55-56 : ill https://www.academia.edu/498310/Areal_variations_in_the_composition_of_the_Kinnekulle_altered_volcanic_ash_bed_Caradoc_relations_to_sedimentary_facies Chloritization of Upper Ordovician Pirgu bentonites - source material or diagenetic environment?Kirsimäe, Kalle; Hints, Rutt; Kallaste, Toivo; Kiipli, Enli; Kiipli, TarmoWOGOGOB-2004 : 8th Meeting of the Working Group on the Ordovician Geology of Baltoscandia : May 13-18, 2004, Tallinn and Tartu, Estonia : conference materials : abstracts and field guidebook2004 / p. 57-58 https://artiklid.elnet.ee/record=b2610235*est Metabentonites of the Pirgu Stage (Ashgill, Upper Ordovician) of the East BalticKiipli, Enli; Kallaste, Toivo; Kiipli, TarmoWOGOGOB-2004 : 8th Meeting of the Working Group on the Ordovician Geology of Baltoscandia : May 13-18, 2004, Tallinn and Tartu, Estonia : conference materials : abstracts and field guidebook2004 / p. 53-54 : ill https://artiklid.elnet.ee/record=b2610225*est