我国铁矿床的一种新类型——弓长岭式含石墨的富磁铁矿矿床及其成因

A CONTRIBUTION TO THE GENESIS OF RICH MAGNETITE DEPOSIT OF THE GONGCHANGLING TYPE——IN THE LIGHT OF GRAPHITE DISCOVERED IN IT

Graphite has been identified for the first time from rich magnetite ores in Gongehangling,Northeast China.It is suggested that the deposit is originated from siderite of sedimentary origin through regional metamorphism.In view of the unique charaeteristics of its geologieal setting and mineral assemblage this deposit should be elassified as a new type in

Graphite has boon identified for the first time from rich magnetite ores in Gongehangling,Northeast China.It is suggested tliat the deposit i.s originated from siderite of sedimentary origin through regional metamorphism.In view of the unique characteristics of its geological setting and mineral assemblage this deposit should be classified as a new type in China.