| 孙建东,张雪辉,吕劲松,康丛轩,张勇,武彬.江西金山矿田罗家墩金矿地球化学、锆石U-Pb年龄及地质意义[J].矿产勘查,2018,9(3):293-304 |
| 江西金山矿田罗家墩金矿地球化学、锆石U-Pb年龄及地质意义 |
| Geochemical characteristics,zircon U-Pb age and geological significance in the Luojiadun gold deposit in Jinshan ore field,Jiangxi |
| 投稿时间：2017-08-27 |
| DOI： |
| 中文关键词: 罗家墩金矿 韧性剪切带 成矿年龄 江西 |
| 英文关键词: Luojiadun gold deposit, ductile shear belt, metallogenic age, geological significance |
| 基金项目:中国地质调查局项目(编号:1212011120846、12120113065500、DD20160038)资助。 |
|
| 摘要点击次数: 1824 |
| 全文下载次数: 1203 |
| 中文摘要: |
| 通过罗家墩金矿地球化学、超糜棱岩及变沉凝灰岩锆石LA-ICP-MS U-Pb定年研究表明:从千糜岩经变沉凝灰岩、糜棱岩到超糜棱岩,SiO2、CaO总体为带入组分,Al2O3、TFe、K2O为带出组分；超糜棱岩、变沉凝灰岩成岩分别为(844.0±6.4)Ma、(847.6±5.6)Ma,表明张村岩群归属新元古代；矿区(田)成矿与江南造山运动相近,主成矿期为晋宁期；由变沉凝灰岩经糜棱岩到超糜棱岩,相近的岩石学、地化特征表明它们成岩环境、物源的一致性,赋矿岩石原岩岩性为石英角斑质沉凝灰岩。 |
| 英文摘要: |
| The Luojiadun gold geochemistry,ultramylonite and meta sediment-tuff zircon LA-ICP-MS U-Pb dating of :the phyllonite to meta sediment-tuff、mylonite to ultramylonite、SiO2, CaO overall into the group, Al2O3, TFe, K2O to carry out components; ultramylonite, meta sediment-tuff rock were (844±6.4)Ma, (847.6±5.6)Ma, showed that Zhangcun group belonging to the Neoproterozoic; mining area (field); similar metallogenic Jiangnan orogenic movement, the main mineralization stage of Jinning period; from meta sediment-tuff by mylonite to ultramylonite, similar petrology, geochemical characteristics show that the consistency of their diagenetic environment, source rock, ore rock lithology quartz keratophyric tuff. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|