- 责任者：Song Mingchun (Shandong Bureau of Geology and Mineral Resources ; Jinan 250013 ; China) ; Song Yingxin
- 刊名：Mineral Deposits
- 出版年：2011
- 卷期：30(5)
- 关键词：金矿 ; gold ores ; 山东 ; Shandong Province
- 页码：p.923-932
- 图表：4 illus., 1 table, 17 refs.
- 分类号：1001
- issnNo：ISSN0258-7106
- isbnNo：CN11-1965/P
The Jiaojia superlarge gold ore district in Laizhou City is composed of Jiaojia gold deposit, Matang gold deposit, Sizhuang gold deposit, Sizhuang deep-seated gold deposit, Matang deep-seated gold deposit and Jiaojia deep-seated gold deposit. The total reserves of gold resources are higher than 600 t. The ore district consists of 4 ore body groups. There are 306 deep-seated ore bodies.Ⅰ-1, Ⅱ-1 and Ⅰ-12 deep-seated main ore bodies are parallel to and superimposed upon each other in horizontal projection.Ⅰ-12, Ⅰdeep-seated main ore bodies and Ⅰ, 1 shallow main ore bodies are connected to form a large ore body. From shallow to deep levels, gold grade and Au/Ag ratio tend to become lower, and gold minerals tend to become simple in shape, fine in size, increasing in gold content, decreasing in silver content and obviously higher in fineness of gold. The variation of characteristics from shallow to deep-seated gold ore bodies is controlled by variation of structure, fluids, interspace and ore-forming physicochemical conditions.