Publications

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Publications

  • The mineralogy, texture and significance of silica derived from alteration by steam condensate in three New Zealand geothermal fields

    Authors
    Patrick Browne, K.A. Campbell, K.A. Rodgers, K.L. Cook
    Journal
    Clay Minerals
    Year
    2002
    Opaline silica residue accumulates on the surface and in the near surface of the Te Kopia, Tikitere and Rotokawa geothermal fields, where rhyolitic tuffs are attacked by steam condensate, made acid (p... REGISTER NOW TO SEE MORE

  • The steam condensate alteration mineralogy of Ruatapu cave, Orakei Korako geothermal field, Taupo Volcanic Zone, New Zealand

    Authors
    Patrick Browne, K.A. Campbell, K.A. Rodgers, R. Martin, K.A. Hamlin
    Journal
    Mineralogical Magazine
    Year
    2000
    Ruatapu cave has developed beneath a block of hydrothermally altered Quaternary vitric tuff in the active Orakei Korako geothermal field. The cave extends ~45 m, with a vertical drop of 23 m, to a sha... REGISTER NOW TO SEE MORE

  • The nature and significance of sulphate-rich, aluminous efflorescences from the Te Kopia geothermal field, Taupo Volcanic Zone, New Zealand

    Authors
    Patrick Browne, K.A. Rodgers, R. Martin
    Journal
    Mineralogical Magazine
    Year
    1999
    Alunogen and meta-alunogen are the dominant phases present in transient sulphate efflorescences that are the latest products of the alteration of ignimbrite country rocks in the long-lived Te Kopia ge... REGISTER NOW TO SEE MORE