鲁东地区元古宙中深变质岩系非金属矿含矿变质建造

METAMORPHOSED NONMETALLIC MINERAL-BEARING FORMATIONS IN THE PROTEROZOIC MEDIUM TO HIGH GRADE METAMORPHIC SEQUENCE IN EASTERN SHANDONG

摘要:

鲁东地区较广泛地发育着元古宙中深变质岩系及非金属矿含矿变质建造，其中蕴藏的石墨、滑石、菱镁矿等非金属产在省内外占有重要地位。鲁东是山东省元古宙非金属矿重要成矿区。主要非金属矿合矿建造有；合石墨变粒岩－片麻岩变质沉积建造，含菱镁矿、滑石、透辉岩、大理岩富镁碳酸盐岩变质沉积建造，含红柱石、夕线石高铝云母片岩变质沉积建造，合石英岩砂质碎屑岩变质沉积建造；含石棉、蛇纹岩、磷灰石镁铁质一超镁铁质侵入岩建造等。鲁东地区不同的非金属矿床，明显受控于不同类型的合矿建造；而不同类型的非金属矿合矿建造的形成又明显受控于不同的大地构造环境。

Abstract:

The Proterozoic medium-to-high grade metamorphic rocks and nonmetallic mineral -bearing formations are distrbuted widely in eastern Shandong, where nonmetallicminerals, such as graphite, talc and magnesite, etc. rank an important position in ourcountry. Eastern Shandong is an important ore-forming region of Proterozoic nonmetallicminerals. Major ore-bearing formations are as follows: graphite-bearing metasedimentaryformation of leptynite-gneiss, metasedimentary formation of magnesite-and talc-bearing diopsi...