 | Christie, A. B., Simpson, M. P., Brathwaite, R. L., Mauk, J. L., Simmons, S. F. (2007) Epithermal Au-Ag and Related Deposits of the Hauraki Goldfield, Coromandel Volcanic Zone, New Zealand. Economic Geology, 102 (5) 785-816 doi:10.2113/gsecongeo.102.5.785 | Journal (article/letter/editorial) | | Zone, New Zealand ANTHONY B. CHRISTIE,† GNS Science, P.O. Box 30-368, Lower Hutt 5040, New Zealand MARK...1142, New Zealand ROBERT L. BRATHWAITE, GNS Science, P.O. Box 30-368, Lower Hutt, New Zealand JEFFREY...92019, Auckland Mail Centre, Auckland 1142, New Zealand Abstract Epithermal Au-Ag vein deposits of the...Hauraki goldfield in the Coromandel volcanic zone, New Zealand, produced 320,000 kg Au and 1.5 million kg Ag...Ag between 1862 and 2006 from a total land area of approximately 2,900 km2. Approximately 69 percent of |  | | Journal (article/letter/editorial) | | Epithermal Province: The Hauraki Goldfield, New Zealand* JEFFREY L. MAUK,1,† CHRIS M. HALL,2 JOHN T....92019, Auckland Mail Centre, Auckland 1142, New Zealand 2 Department of Geological Sciences, University...the southern province, adularia from quartz veins at the Maratoto deposit provide a preferred 40Ar/39Ar...40Ar/39Ar age of 6.41 ± 0.04 Ma, and adularia from a quartz vein at the Sovereign deposit yields a preferred...37 ± 0.03 and 6.51 ± 0.03 Ma. Adularia from one quartz vein from the Favona deposit yields a 40Ar/39Ar |  | | Journal (article/letter/editorial) | | and Prospects of the Waitekauri Area, Hauraki Goldfield, New Zealand MARK P. SIMPSON† AND JEFFREY L....Auckland, New Zealand Abstract The Waitekauri area of the Hauraki goldfield, New Zealand, contains several...Au-Ag deposits and prospects. From west to east, the area contains the Sovereign, Jubilee, Scimitar, Scotia...a 3-km-long composite cross section through the area. Most host rocks are intensely altered, with 100...weaker toward the east. Alteration minerals include quartz, adularia, albite, chlorite, pyrite, illite, interstratified |  | | Report (issue) | | R., and Fuffield, W. A., 1980, Coso Geothermal Area, Geothermal investigations in the Coso Range, California;...1979, Geochemistry of hydrothermal ore deposits: New York, John Wiley and Sons, Inc., 798 p. 2nd ed.;...ed., Geochemistry of hydrothermal ore deposits: New York, John Wiley and Sons, Inc., p. 404-460. Barnes...ed., Geochemistry of hydrothermal ore deposits: New York, John Wiley and Sons, Inc., p. 278-403. Baston...Cameron volume on unconventional mineral deposits; New York, publisher, p. 191-205. Berger, B. R., and Silberman |  | | Report (issue) | | R., and Duffield, W. A., 1980, Coso Geothermal Area, Geothermal investigations in the Coso Range, California:...Geochemistry of hydrothermal ore deposits, 2nd ed.: New York, John Wiley and Sons, Inc., 798 p. Barnes, H...ed., Geochemistry of hydrothermal ore deposits: New York, John Wiley and Sons, Inc., p. 404-460. Barnes...ed., Geochemistry of hydrothermal ore deposits: New YoTT, John Wiley and Sons, Inc., p. 278-403. Baston...Cameron volume on unconventional mineral deposits: New York, Society of Mining Engineers of AIME, p. 191-205 |
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Maratoto-Wentworth area, Waikato Region, New Zealand