Scientific publications

Л.В. Кулешевич, О.Б. Лавров, А.В. Дмитриева, В.М. Тытык.

Благороднометалльная минерализация западного экзоконтакта Хаутаваарского массива (Южная Карелия)

// Труды КарНЦ РАН. No 11. Сер. Геология Докембрия. 2017. C. 59-77

L.V. Kuleshevich, О.B. Lavrov, А. V. Dmitrieva, V.М. Tytyk. Precious-metal mineralization at the western exocontact of the Hautavaara massif, South Karelia // Transactions of Karelian Research Centre of Russian Academy of Science. No 11. Precambrian Geology Series. 2017. Pp. 59-77

Keywords: gold-base metal; gold-sulfoarsenide occurrences; metasomatic alterations; exocontact; Hautavaara massif; Karelia

Intense silicification zones and metasomatic alterations (propylitic-type) with Au-Bi-Tebearing base-metal and sulfoarsenide mineralization were revealed at the exocontact of the Hautavaara granosyenite-monzogranite massif, South Karelia. Ore mineralization at the northwestern exocontact of the massif consists of pyrrhotite, chalcopyrite, sphalerite and galena. There also occur bismuth tellurides, hessite, electrum (30–35 % Ag), altaite and pyrosmalite (rare Mn-Fe-silicate). Alteration zones display elevated Mn, Cu, Zn and Ni concentrations and lower Pb, Bi, Te, Mo, Au, Co and As concentrations. Sulfoarsenide mineralization, consisting of arsenopyrite, galena, chalcopyrite, scheelite, pyrite, cobaltite, sphalerite and finely-dispersed gold (~18–23 % Ag) and Au-Bi associations, is confined to a biotite-chlorite-quartz metasomatic rock zone over gabbro at the southwestern exocontact of the massif. The southwestern aureole of the massif contains elevated As, Co, Pb, Cu, Zn, W, Bi, Au and Te concentrations.

URL: http://journals.krc.karelia.ru/index.php/precambrian/article/view/672

DOI: 10.17076/geo672

Indexed at RSCI

Last modified: November 22, 2017