The Occurrence of Pyrrhotite in the Ngawha Geothermal System, New Zealand

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Description

The Ngawha geothermal system is low in all sulfide minerals, but in comparison to systems in the Taupo Volcanic Zone it contains more widely distributed pyrrhotite which is currently depositing, mainly in fractures. This reflects the high proportion of vapor in the Ngawha system. Pyrrhotite is most common in the upper part of the reservoir and lower part of the aquitard. The Ngawha pyrrhotite is of monoclinic and monoclinic + hexagonal structure.

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Cox, M. E. & Browne, P. R. L. January 1, 1995.

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Description

The Ngawha geothermal system is low in all sulfide minerals, but in comparison to systems in the Taupo Volcanic Zone it contains more widely distributed pyrrhotite which is currently depositing, mainly in fractures. This reflects the high proportion of vapor in the Ngawha system. Pyrrhotite is most common in the upper part of the reservoir and lower part of the aquitard. The Ngawha pyrrhotite is of monoclinic and monoclinic + hexagonal structure.

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  • Proceedings of The 17th New Zealand Geothermal Workshop 1995

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  • Report No.: GEO-PROC-95-02
  • Grant Number: None
  • Office of Scientific & Technical Information Report Number: 895896
  • Archival Resource Key: ark:/67531/metadc890774

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  • January 1, 1995

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • Dec. 7, 2016, 6:22 p.m.

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Cox, M. E. & Browne, P. R. L. The Occurrence of Pyrrhotite in the Ngawha Geothermal System, New Zealand, article, January 1, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc890774/: accessed July 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.