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  • AUSIMM
    Volcanic Stratigraphy, Structure and Controls on Mineralization, Golden Cross Mine, New Zealand.

    By McOnie A. W, Rutherford PG

    A volcanic sequence is described from the Golden Cross Mine, Waihi, New Zealand. The sequence includes seven lithostratigraphic units comprising flow and pyroclastic units of Coromandel Group andesit

    Jan 1, 1995

  • AUSIMM
    Volcanic-Associated Mineralization in the Kangiara Region, South Eastern New South Wales, Australia.

    Near Kangiara in south eastern New South Wales, Australia, a number of polymetallic (copper, lead and zinc, with minor silver and gold) mineral deposits occur within a relatively broad volcanic rock b

    Jan 1, 1990

  • AUSIMM
    Volcanic-Sedimentary Facies Associations Hosting the Volcanogenic Massive Sulphide Mineralisation at Golden Grove, Western Australia

    The Archean Gossan Hill Group at Golden Grove, Western Australia, hosts two potentially economic volcanogenic massive sulphide deposits. The volcanic-sedimentary succession hosting this mineralisa

    Jan 1, 1987

  • AUSIMM
    Volcanics and Mineral Deposits Along a Plate Boundary

    Waitemata Tectonic Event(25 Ma ago) created a subduction system from the northeast of Northland, causing: (1) the emplacement of the Northland Allochthon (24-23 Ma) which provided argillaceous limesto

    Jan 1, 1997

  • AUSIMM
    Volcanoes and Volcanic Risk in the Circum-Pacific

    The Circum-Pacific is defined to include back arcs and continental areas of volcanism. Volcanoes must be regarded as dormant, if the time since their last eruption is less than about ten times the

    Jan 1, 1987

  • AUSIMM
    Volcanogenic Cu-Pb-Zn Mineralization in the Mons Cupri District, West Pilbara

    The Mons Cupri Cu-Pb-Zn deposit is situated within a complex Archaean volcanic sequence dominated by rhyolitic fragmental rocks. This sequence is underlain by a 150 m group of rhyolitic ash flow t

    Jan 1, 1973

  • AUSIMM
    Volcanogenic Massive Sulfide Deposits in New Zealand

    By R L. Brathwaite

    In New Zealand, volcanogenic massive sulfide (VMS) deposits are found in three main geological environments associated with: 1.   ophiolitic basalts of Oligocene age in Northland and East Ca

    Jan 1, 2005

  • AUSIMM
    Volume and Structural Changes Occuring During the Isothermal and Non-Isothermal Reduction of High Grade Hematite Pellets

    By Morrison AL

    The volume changes occurring during the reduction by hydrogen of single, high-grade hematite pellets under isothermal and non- isothermal conditions were investigated using a time-lapse photographi

    Jan 1, 1980

  • AUSIMM
    Volumetric Determination of Iron: New Method of Reduction

    THE reduction of iron from the ferric to the ferrous state prior to its titration by permanganate or dichromate may give erroneous results in the presence of other reducible metals such as titanium. S

    Jan 1, 1922

  • AUSIMM
    Volumetric Reserves And Probability Estimates

    By Stewart W. J

    The volumetric method of estimating hydrocarbon resources and recoverable reserves is and probably will remain a dominant method in petroleum engineering. The method is technically very simple, bu

    Jan 1, 1979

  • AUSIMM
    Voorspoed Diamond Mine - Challenges of Re-Opening a Historical Mine with an Inferred Resource

    The pyroclastic-filled Voorspoed kimberlite pipe has a low grade due to significant internal dilution which translates to a marginal business case. The site, with excavations, tailings dumps and build

    Jan 1, 2009

  • AUSIMM
    Wacker Sampling as an Effective Gold Exploration Tool in the Reefton Goldfield, Greenland Group, West Coast, New Zealand

    By M E. Dunphy, P Silversmith

    The Reefton Goldfield, both historically and potentially, represents a significant gold producing camp in the Westland province of New Zealand. Some two million ounces of gold have been produced from

    Jan 1, 1997

  • AUSIMM
    WAD Cynoprobe - A Case Study for the Development of an Online Weak Acid Dissociable (WAD) Cyanide Measurement Device

    By P Lotz

    With the recent increase in environmental awareness, gold mining companies are fast becoming signatories of the International Cyanide Management Code (ICMI, 2007). The objective of the Code is to impr

    Jan 1, 2007

  • AUSIMM
    Waihi Basin Structure in Light of Recent Geophysical Surveys

    By R L. Brathwaite

    As part of an investigation of the deep structure of the Waihi Basin, an extensive set of resistivity measurements was recently collected by DSIR Geology & Geophysics. The objective of this work i

    Jan 1, 1991

  • AUSIMM
    Waihi Gold - Extended Project

    By M Maguire

    The purpose of this paper is to provide an illustration of the Resource Management Act processes at their best. Many of you will be aware of the Martha Mine situated in the middle of Waihi Township in

    Jan 1, 1998

  • AUSIMM
    Waihi Gold Mine's Community Story

    Waihi Gold Mining Company Limited, a wholly owned subsidiary of Normandy Mining Limited, operates the Martha gold mine, located in the township of Waihi, New Zealand. The operation, an unincorporated

    Jan 1, 2000

  • AUSIMM
    Waihi û A New Beginning

    Newmont Waihi Gold operates the Martha Mine open pit at Waihi, New Zealand and is developing the Favona Underground Project two kilometres to the east. The Company is exploring the Waihi district unde

    Jan 1, 2004

  • AUSIMM
    Waihi-Paeroa Gold Extraction Co. Ltd.

    THE following paper is a description of the plant and operations of the above company in their recovery and treatment of the quartz tailings deposited as final residues by the various mining companies

    Jan 1, 1911

  • AUSIMM
    WaihiÆs 2020 Vision: Part A: The Community's Blue-print

    Gold was discovered at Waihi in 1878. In 1987 the modern Martha Mine opened in the middle of the town of Waihi. Newmont Waihi Gold as the current licence holder has been operating the mine since 2000.

    Jan 1, 2006

  • AUSIMM
    WaihiÆs 2020 Vision: Part B: Where to From Here?

    For the past 3 years Waihi as a community has been actively engaged in consultation about its future with regard to the environmental, cultural, economic and social viability. This has been made possi

    Jan 1, 2006