Bài viết giới thiệu một số kết quả nghiên cứu mới về đặc điểm quặng hóa chì - kẽm khu vực Phia Đăm - Khuổi Mạn trên cơ sở áp dụng phương pháp địa chất truyền thống, kết hợp phương pháp nghiên cứu thành phần vật chất và phương pháp toán thống kê. | 120 Journal of Mining and Earth Sciences Vol. 61 Issue 5 2020 120-134 Features of lead-zinc mineralization in the Phia Dam - Khuoi Man region Phuong Nguyen 1 Dong Phuong Nguyen 1 Huong Thi Nguyen 3 Huong Thi Le 3 Dinh Van Do 2 1 Facury of Environment Hanoi University of Mining and Geology Vietnam 2 VietNam Office of Mineral Reserve Assessment Hanoi Vietnam 3 Mining and Goelogy Consulting amp Technology deployment JSC Hanoi Vietnam ARTICLE INFO ABSTRACT Article history The paper introduces a number of new research results on the Received 15th June 2020 characteristics of lead - zinc ores in Phia Dam - Khuoi Man areas based Accepted 13th Sep. 2020 on the application of traditional geological methods combining the Available online 31st Oct. 2020 method of researching material composition and method statistical Keywords maths. In the study area there are two forms of ore bodies with Bac Kan characteristics described as below the first form consists of ore bodies developed along the stratabound bedding surface are mainly distributed Lead-zinc mineralization in either anticlinal structures . Phia Dam region or cuesta . Khuoi Phia Dam - Khuoi Man. Man region and the second form consists of ore bodies in lodes filled in cracks or zones of fracture along the northwest southeast faults. Primary ore minerals are mainly galena sphalerite pyrite chalcopyrite etc. and gangue minerals are calcite dolomite and quartz. Ore structures are nests veins disseminated veins banded speckled or sometimes breccia - like ones. The relevant and controlling factors of lead-zinc mineralization in Phia Dam - Khuoi Man region are the northwest - southeast fault system and the lithostratigraphy. Ores are of either mesothermal or epithermal deposits temperatures varies from 162 to 308 degrees Celcius with a specific symbiotic combination of quartz - sphalerite - galena - chancopyrite. Copyright 2020 Hanoi University of Mining and Geology. All rights reserved. ___________ .
