| 蒋加燥.苏里南共和国金矿类型及主要地质特征[J].地质与勘探,2018,54(4):867-876 |
| 苏里南共和国金矿类型及主要地质特征 |
| Types and main geological characteristics of gold deposits in Suriname |
| 投稿时间：2015-09-14 修订日期：2018-05-18 |
| DOI：10.12134/j.dzykt.2018.04.020 |
| 中文关键词: 苏里南金矿 圭亚那地盾 剪切带（造山）型金矿 泛亚马逊造山期 |
| 英文关键词: Suriname,gold deposit,Guiana Shield,shear-zone (orogenic) gold deposit, Pan-Amazon orogenic period |
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| 中文摘要: |
| 苏里南金矿主要位于圭亚那地盾古元古代的花岗-绿岩带上，沿大型剪切带或断层带分布。通过实地调查、综合研究及结合前人资料的基础上初步认为当地主要有冲洪积型、残坡积型、剪切带（造山）型金矿等类型。剪切带型金矿与剪切构造活动同期或晚于构造变形期，与泛亚马逊造山期后钙碱性火山作用和深成侵入作用同期。根据罗斯贝尔金矿等典型矿床研究，苏里南金矿与圭亚那地盾上其它造山型金矿成矿时代相近（2.023-1.955Ga），泛亚马逊主期的构造对金矿起到了导矿和容矿作用，同时提出苏里南金矿的主要找矿方向。 |
| 英文摘要: |
| Most gold deposits in Suriname are hosted in a Paleoproterozoic granitoid-greenstone belt of the Guiana Shield, which are distributed along major dextral shear zones or reverse faults. On the basis of field investigations, comprehensive study and previous data, it is suggested that the main types of these deposits include alluvial, residual talus, and shear zone (orogenic) ones. Of them, the mineralization of shear zone type gold deposits was concurrent with or later than the structural activity, and synchronous with post-Pan-Amazon orogenic calc-alkaline volcanism and plutonic intrusion. According to the study of the Rosebel gold deposit, the gold deposits in Suriname are potentially similar in the age to other orogenic gold deposits of the Guiana Shield dated between 2.023 and 1.955 Ga. The presence of pre-existing structures provided fluid conduits for gold mineralization. We also propose the primary exploration direction for the Surinan gold deposit. |
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