济南市莱芜区房干墨玉矿床特征
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摘要
莱芜房干矿区发育2个墨玉矿体,为透镜状、脉状,呈NW向"一"字形分布,具分支复合现象。总体走向315°,倾向NE,倾角52°～61°。玉石质地细润,呈黑绿色色调,透明度差,玻璃或蜡状光泽,摩氏硬度平均4.18,密度平均2.84g/cm~3,放射性内外照射指数低;具鳞片变晶结构、叶片变晶结构,片状和块状构造。矿床属于超基性岩变质矿床。岩体和泰山岩群雁翎关组呈明显的侵入关系,矿体受张裂构造控制,具有岩浆阶段和变质阶段形成的专属性矿物组合和岩石类型,矿床规模为小型。
There are two dark jade deposits in the mining area. They are lenticular and vein-like type and distributed in the shape of "一" with the trend of NW. The two depsits have branch and compounding phenomena. The overall trend is 315°, the inclination is NE, inclination is 52°～61°. Jade has fine texture, black-green hue, poor transparency, glass or waxy luster. The average Morse hardness is 4.18, and average density is 2.84 g/cm~3. Radioactive index is low, with scaly and blade crystal structure, flake and block structure. The deposit belongs to ultrabasic rock metamorphic deposit. Rocks and Yanlingguan formation in Taishan Group are obviously intrusive relation. The ore body is controlled by the tensional fracture structure. It has the exclusive mineral assemblages and rock types formed in the magmatic and metamorphic stages. The deposit scale is small.
There are two dark jade deposits in the mining area. They are lenticular and vein-like type and distributed in the shape of "一" with the trend of NW. The two depsits have branch and compounding phenomena. The overall trend is 315°, the inclination is NE, inclination is 52°～61°. Jade has fine texture, black-green hue, poor transparency, glass or waxy luster. The average Morse hardness is 4.18, and average density is 2.84 g/cm~3. Radioactive index is low, with scaly and blade crystal structure, flake and block structure. The deposit belongs to ultrabasic rock metamorphic deposit. Rocks and Yanlingguan formation in Taishan Group are obviously intrusive relation. The ore body is controlled by the tensional fracture structure. It has the exclusive mineral assemblages and rock types formed in the magmatic and metamorphic stages. The deposit scale is small.
引文
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[18]黄雪蓉.浅谈泰山玉文化溯源[J].东方企业文化,2015(19):23.
[19]李宗成.山东泰山玉矿的发现及矿床和玉石特征[J].山东国土资源,2018,34(10):72-78.
[2]张蓓莉.系统宝石学[M].北京:地质出版社,2006:386.
[3]徐莉.独山玉命名与分类国家标准释义[M].北京:中国质检出版社,2016:6-7.
[4]宋明春.山东省地质矿产图集[M].济南:山东省地图出版社,2012:73-75.
[5]李宗成,邱伟,张念朋,等.山东泰山玉矿地质特征[J].山东国土资源,2012,28(9):14-17.
[6]张厚生,张希雨.泰山玉地质特征及其工艺加工性研究[J].山东地质,1989,5(1):64-72.
[7]贾东亮,高宗军.泰山玉的基本特征及分类研究[J].山东国土资源,2013,29(3):23-27.
[8]张念朋,李宗成,邢楠,等.泰山玉的外观特征及分类分级研究[J].山东国土资源,2015,31(11):26-29.
[9]魏斌,张念朋.山东省泰安市大辛庄泰山玉矿床地质特征[J].地球,2016(10):63-64.
[10]邱伟.泰山玉玉化程度与化学成分的关系浅析[J].山东国土资源,2017,33(11):37-42.
[11]张念朋.泰山玉的致色因素分析[J].山东国土资源,2016,32(7):31-34.
[12]程佑法,李建军,范春丽,等.珠宝与科技-中国珠宝首饰学术交流会论文集[A]∥泰山玉的特征及鉴别[C].北京:国土资源部珠宝玉石首饰管理中心,2015:275-279.
[13]DB37/T2417-2013.泰山玉[S].
[14]白立仑,董桂琛.山东泰山玉[J].中国宝玉石,1993(4):12.
[15]GB50007-2011.建筑地基基础设计规范[S].
[16]DZ/T0130-2006.地质矿产实验室测试质量管理规范[S].
[17]GB6566-2010.建筑材料放射性核素限量[S].
[18]黄雪蓉.浅谈泰山玉文化溯源[J].东方企业文化,2015(19):23.
[19]李宗成.山东泰山玉矿的发现及矿床和玉石特征[J].山东国土资源,2018,34(10):72-78.