| 胡升奇,孙哲雨,李晓龙,龚敬海,张铁成,王英辉.黑龙江林口县大砬子村晶质石墨矿地质特征及成矿规律[J].矿产勘查,2020,11(11):2430-2439 |
| 黑龙江林口县大砬子村晶质石墨矿地质特征及成矿规律 |
| Geological characteristics and metallogenic regularities of the Dalazicun crystal graphite deposit in the Linkou County, Heilongjiang Province |
| 投稿时间：2020-07-01 |
| DOI： |
| 中文关键词: 石墨矿 大盘道组 地质特征 大砬子村 林口县 黑龙江 |
| 英文关键词: graphite deposit, Dapandao Formation, geological characteristics, Dalazicun, Linkou, Heilongjiang Province |
| 基金项目:黑龙江省地质勘查基金项目(编号:KCZX-SMKC-2016009)资助。 |
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| 中文摘要: |
| 黑龙江省林口县大砬子村石墨矿位于佳木斯—兴凯(地块)Fe-Au-P-石墨-矽线石成矿带中部,为一沉积变质大型晶质石墨矿床。赋矿层位为中-新元古界兴东岩群大盘道岩组中段(Pt2-3dp2),在矿区内共圈定3条石墨矿带,包括9条石墨矿体。根据槽探和钻探工程结果,该区预测石墨矿矿石量5077.72万t,矿物量402.61万t,固定碳平均品位7.93%。通过对大砬子村石墨矿的地质特征和矿体特征分析,确定了矿体均呈近南北向展布,产状与地层一致,矿石自然类型主体为石墨石英片岩型,局部为含石墨斜长变粒岩型；矿石工业类型为晶质细鳞片石墨矿,总结了其成矿规律,该石墨矿为一层控矿床,成矿碳质来源为有机质,成矿时代为中-新元古代-早古生代。该石墨矿的找矿发现及研究成果对在黑龙江东部佳木斯隆起兴东岩群大盘道组寻找同类矿床具有参考意义。 |
| 英文摘要: |
| The Dalazicun graphite deposit in the Linkou County is located in the middle of the Jiamusi-Xingkai (block) Fe-Au-P-graphite-silimanite metallogenic belt. It is a large sedimentary metamorphic crystalline graphite deposit. The ore bearing horizon is hosted in the middle member of the Dapandao Rock Formation (Pt2-3dp2) of the Mesoproterozoic-Neoproterozoic XingdongRock group, and 3 ore belts and 9 graphite orebodies have been delineated.According to the results of trenching and drilling engineering, the total amount of graphite ore is predicted to be 50.7772 million tons, the mineral quantity is 4.0261 million tons, and the average grade of fixed carbon is 7.93%.Based on the analysis of geological characteristics and ore body characteristics of dalazicun Graphite Deposit, it is determined that the ore bodies are distributed in nearly north-south direction, and the occurrence is consistent with the stratum. The main natural type of ore is graphite quartz schist type, and It is minor composed of graphite plagioclase granulite type. The industrial type of ore is crystalline fine-scale flake graphite ore. The metallogenic regularity is summarized. It is a stratabound deposit, the carbon source is organic matter, and the metallogenic age is Mesoproterozoic-Neoproterozoic-Early Paleozoic. The discovery and research result of this graphite deposit has reference significance for the exploration of similar deposits in dapandao rock formation of Xingdong rock group in Jiamusi uplift, Eastern Heilongjiang Province. |
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