The Lode Gold Occurrence in the «Territory» of Oleg Kuvaev (North of the Chukotka Upland)

A sample of a gold-bearing quartz vein from the Upper-Ichuveem ore occurrence, discovered in the Triassic terrigenous complex in the north of the Chukotka Upland, the Oleg Kuvaev's “Territory”, had been comprehensively studied. The gross gold grade was estimated at 3–4 g / t. The vein includes...

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Bibliographic Details
Main Authors: Silaev, V. I., Kokin, A. V., Filippov, V. N., Khazov, A. F., Kiseleva, D. V., Cherednichenko, N. V., Vasiliev, E. A.
Format: Article in Journal/Newspaper
Language:Russian
Published: Perm State University 2021
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Online Access:http://geology-vestnik.psu.ru/index.php/geology/article/view/406
Description
Summary:A sample of a gold-bearing quartz vein from the Upper-Ichuveem ore occurrence, discovered in the Triassic terrigenous complex in the north of the Chukotka Upland, the Oleg Kuvaev's “Territory”, had been comprehensively studied. The gross gold grade was estimated at 3–4 g / t. The vein includes quartz, native gold, sulfide-gold-silver solid solutions, alumoseladonite, aluminium-sulfate-phosphates Fe-Pb-Mg-Ca compound, apatite, pyrite, iron-titanium oxides, litharge, native phases composed of Fe (Ni), Ag-Pb-Bi, Fe-Al-PS-As, multicomponent ocher of hypergene origin. Native gold ranges from medium to fine. The vein contains particles of non-crystalline organic matter, which is close in composition of organic groups to polysaccharides. It is possible that the carbon particles found in the gold-quartz vein are of an abiogenic nature and can be compared with abiogenic condensed organelles in the products of modern volcanism. The data obtained make it possible to attribute the Upper Ichuveem gold ore occurrence to a low-sulfide gold-quartz formation, but with additional signs of gold-silver and polymetallic formations, which can be regarded as a favorable prerequisite for prospecting and exploration in Oleg Kuvaev's «Territory» not only of gold-placer deposits, but also of lode gold deposits. Комплексно исследован образец золотоносной кварцевой жилы с Верхне-Ичувеемского рудопроявления, выявленного в триасовом терригенном комплексе на севере Чукотского нагорья – «Территории» Олега Куваева. Валовое содержание золота оценивается в 3–4 г/т. В состав жилы входят кварц, самородное золото, сульфидно-золото-серебряные твердые растворы, алюмоселадонит, алюмо-сульфато-фосфаты Fe-Pb-Mg-Ca состава, апатит, пирит, железо-титановые оксиды, глёт, самородные фазы состава Fe (Ni), Ag-Pb-Bi, Fe-Al-P-S-As, поликомпонентные охры гипергенного происхождения. Самородное золото колеблется от средне- до высокопробного. В составе жилы обнаружены частицы некристаллического органического вещества, близкого по составу органических групп к ...