地槽区
In recent years, there more different types Mo deposits ( spots) have been discovered in Jilin geosynclinal area, mainly porphyry, quartz vein, skarn and fracture altered rock deposits.
近几年吉林槽区陆续发现多处不同类型的钼矿床(点),其主要类型有斑岩型、石英脉型、矽卡岩型、破碎蚀变岩型。
All those facts above show that source material of the alkaline-rich intrusions in North China platform has close relationship with the enriched mantle and that of the geosynclinal area has close relationship with the depleted-mantle.
以上事实说明华北地台区富碱侵入岩的物质来源与富集地幔关系密切,而地槽区的则与亏损地幔关系密切。
The Paleozoic strata of the Jilin geosynclinal area
吉林槽区的早古生代地层
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