ABSTRACT Since the first official discovery of gold in 1852, gold has been mined in New Zealand from three main types of deposits: placer (c. 19 Moz Au), orogenic (mesothermal; c. 8 Moz Au) and epithermal (c. 11 Moz Au). Currently, gold production in New Zealand is from more than 30 placer mines (>50,000 oz Au per annum) on the West Coast, and in Otago and Southland, and from hard-rock mines at the Macraes orogenic deposits in northeast Otago (202,990 oz Au produced in 2018), and the epithermal deposits of the Waihi area (83,492 oz Au produced in 2018) in the Hauraki Goldfield. The discovery of the Sams Creek intrusion-hosted gold deposit in west Nelson in 1974 has also encouraged exploration for this type of gold deposit. Exploration models for orogenic, intrusion-hosted and epithermal gold deposits have been developed addressing general deposit characteristics, mineral system models and key features for use in exploration. Orogenic deposits are hosted in Western Province Greenland Group (e.g. Reefton Goldfield) and Eastern Province Haast Schist Group (e.g. Macraes), whereas epithermal deposits are associated with Cenozoic volcanic rocks in Northland (e.g. Puhipuhi), and the Coromandel (e.g. Waihi) and Taupo (e.g. Ohakuri) volcanic zones.

中文翻译：

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新西兰硬岩金矿床及其勘探模式介绍

摘要自 1852 年首次正式发现黄金以来，新西兰已从三种主要类型的矿床中开采黄金：砂矿（约 19 Moz Au）、造山带（中温；约 8 Moz Au）和超热液（约 11莫兹奥）。目前，新西兰的黄金产量来自西海岸、奥塔哥和南地的 30 多个砂金矿（每年超过 50,000 盎司金），以及奥塔哥东北部 Macraes 造山带的硬岩矿（202,990 盎司金） 2018 年生产的金）以及位于 Hauraki Goldfield 的 Waihi 地区的浅成热矿床（2018 年生产了 83,492 盎司金）。1974 年在西纳尔逊发现的 Sams Creek 侵入体金矿床也鼓励了对此类金矿床的勘探。造山带勘探模型，已开发侵入岩和超热液金矿床，解决一般矿床特征、矿物系统模型和用于勘探的关键特征。造山带矿床位于西部省格陵兰群（例如 Reefton Goldfield）和东部省哈斯特片岩群（例如 Macraes），而低温热液矿床与北部地区（例如 Puhipuhi）以及科罗曼德（例如 Waihi）和陶波的新生代火山岩有关（例如 Ohakuri）火山区。