(TWO ASSOCIATIONS OF NATIVE ELEMENTS IN EOCENE ACID VOLCANIC ROCKS FROM EASTERN SIKHOTE-ALIN. Article Filimonova L.G., Arapova G.A., Basalaeva I.V., Gorshkov A.I., Laputina I.P., Trubkin N.V. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva. Vol. 114. 1985. P. 400-409