Gold‐Related Sulfide Mineralization and Ore Genesis of the Penjom Gold Deposit, Pahang, Malaysia
Gold‐Related Sulfide Mineralization and Ore Genesis of the Penjom Gold Deposit, Pahang, Malaysia
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马来西亚彭亨州 Penjom 金矿床与金相关的硫化物成矿作用及成因
DOI：
10.1111/j.1751-3928.2007.00014.x
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发表时间：
2007
期刊：
影响因子：
1.4
通讯作者：
Nick Hewson
中科院分区：
文献类型：
--
作者：
K. S. Ariffin;Nick Hewson
Penjom金存款位于彭亨瓜拉利皮斯附近的二叠纪-三叠纪岩石中央带内的劳布-本东缝合线的东侧。该存款的地质主要由一系列细粒至粗粒流纹质至流纹英质凝灰岩、凝灰岩角砾岩和少量流纹质-流纹英质火山岩系组成，与泥质海相沉积岩有关，该沉积岩由巴塘Tungku组和彭亨火山岩系的页岩和次级页岩灰岩组成。细粒至粗粒英云闪长岩和石英斑岩侵入该单元。区内主要构造特征为南北向左旋走滑断层及其附属断层，总体走向为南北向，缓东倾（350°-360°/40°-60°）。Penjom金存款的矿化受构造控制，横向和纵向也不稳定。金矿化可分为（i）与富含碳酸盐的带有关的金，这些带位于含有大量硫化物的扩张石英脉中;（ii）金嵌布在与英云闪长岩有关的石英-碳酸盐脉的网脉中;和（iii）金通常与石英-碳酸盐脉中的毒砂和黄铁矿伴生，所有岩石类型和脆性断裂流纹质火山岩中的韧性性质。闪锌矿、黄铜矿、黝铜矿和磁黄铁矿是金矿化早期的伴生矿物。这些矿物还遭受局部脆性变形。然而，大多数金矿化发生在这些硫化物沉积之后。方铅矿在金矿化末期出现，而碲和铋则与金矿同期伴生。金矿化的发生可能是由于变质变形成因主要集中在剪切带中。成矿作用受围岩（如石墨质页岩）、硫化物矿物和流体-岩石相互作用的强烈控制。
The Penjom gold deposit lies on the eastern side of the Raub‐Bentong Suture line within the Central Belt of Permo‐Triassic rocks, near Kuala Lipis, Pahang, Malaysia. The geology of the deposit is dominated by a sequence of fine‐ to coarse‐grained rhyolitic to rhyodacitic tuff, tuff‐breccia and a minor rhyolitic–rhyodacitic volcanic series, associated with argillaceous marine sedimentary rocks consisting of shale with subordinate shalely limestone of Padang Tungku Formation and Pahang Volcanic Series. Fine‐ to coarse‐grained tonalite and quartz porphyry intruded this unit. The main structural features of the area are north–south‐trending left‐lateral strike‐slip faults and their subsidiaries, which generally strike north–south and dip moderately to the east (350°–360°/40°–60°). Mineralization at the Penjom gold deposit is structurally controlled and also erratic laterally and vertically. The gold mineralization can be categorized as (i) gold associated with carbonate‐rich zones hosted within dilated quartz veins carrying significant amount of sulfides; (ii) gold disseminated within stockwork of quartz–carbonate veins affiliated with tonalite; and (iii) gold often associated with arsenopyrite and pyrite in quartz–carbonate veins and stringers hosted within shear zones of brittle–ductile nature in all rock types and in brittle fractured rhyodacitic volcanic rocks. Sphalerite, chalcopyrite, tetrahedrite and pyrrhotite are the minerals accompanying the early stage of gold mineralization. These minerals also suffered from local brittle deformation. However, most of the gold mineralization took place after the deposition of these sulfides. Galena appears somewhat towards the end of gold mineralization, whereas tellurium and bismuth accompanied gold contemporaneously. The gold mineralization occurred most probably due to the metamorphogenic deformational origin concentrated mostly in the shear zone. The mineralization is strongly controlled by the wall rock (e.g. graphitic shale), the sulfide minerals and fluid–rock interaction.