Mineral Commodity Report 14: Gold
http://www.crownminerals.govt.nz/cms/minerals/publications/publications#ExpNZGold

Tony Christie, Bob Brathwaite, Institute of Geological and Nuclear Sciences Limited


This Institute of Geological and Nuclear Sciences document provides information about gold mining and production. Topics include types of ores and minerals, properties, formation, uses, price, world production and consumption, ore processing and refining, production, reserves, and future trends. Also described are the different ways that gold deposits form including placer deposits, mesothermal deposits, banded iron formation deposits, epithermal gold-silver deposits, intrusion related breccia-hosted deposits, and by-product gold. Detailed examples from around the world are given for each type of gold deposit.

This resource is referenced here:
Subject: Geoscience:Geology:Igneous and Metamorphic Petrology
Resource Type: Scientific Resources:Overview/Reference Work
Topics: Solid Earth:Petrology