Metallogenic Regularity and Prospecting Direction of Gold Deposits in Qinghai, China(PDF)
《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]
- Issue:
- 2018年第02期
- Page:
- 162-175
- Research Field:
- 基础地质与矿产地质
- Publishing date:
Info
- Title:
- Metallogenic Regularity and Prospecting Direction of Gold Deposits in Qinghai, China
- Author(s):
- WANG Fu-de; LI Yun-ping; JIA Yan-hui
- The Fifth Exploration Institute of Geology and Mineral Resources of Qinghai Province, Xining 810099, Qinghai, China
- Keywords:
- gold deposit; ore-controlling factor; spatial-temporal distribution; metallogenic belt; ore-concentrated area; metallogenic prospect; prospecting direction; Qinghai
- PACS:
- P612
- DOI:
- -
- Abstract:
- The gold deposits in Qinghai can be divided into fractured alteration rock-type, marine volcanic rock-type, skarn-type, overlay-type and sand-type. The forming ages of deposit are continuous, ranging from Early Paleozoic to Cenozoic. The peaks of deposit development appear at Late Paleozoic and Mesozoic. Late Paleozoic deposits are mainly located in the northern margin of Qaidam Basin, and Mesozoic deposits mainly distribute in East Kunlun, West Qinling and North Bayankala. The rock gold deposits mainly distribute to the north of 35°N. The fractured alteration rock-type gold deposits are the main in Qinghai, and are strictly controlled by structures. The output and distribution of gold orefields and deposits are controlled by regional deep fractures and secondary structural units as well. Based on the information of gold orefields, deposits and metallogenic characteristics, there are 19 gold ore-concentrated areas divided. According to the ore-concentrated areas, mineralization information and regional metallogenic conditions, the 10 gold metallogenic prospects were proposed. Considering several factors such as regional geological background, information integration and research level, the 5 gold metallogenic prospects including Suganhu-Xitieshan, Saishikenan-Chachalongwa, Qimantage, Citieshan-Zhiyu and Tongde-Tongren are most promising. The above 5 gold metallogenic prospects mainly distribute in the northern and central Qinghai, and are related to the northern margin of Qaidam mineralization belt (Ⅲ-6), the East Kunlun metallogenic belt (Ⅲ-8) and the West Qinling metallogenic belt (Ⅲ-9).
Last Update: 2018-04-19