...Brian Jones; Robin W. Renaut; Michael R. Rosen Abstract Amorphous silica and calcite form the deposits in the vent and on the discharge apron of Waikite Spring 100 (WS-100), which is located in the Waikite Geothermal area on North Island, New Zealand. These precipitates formed from spring water...

.... M.E. 1992a. The location and geochemistry of natural features in the Waikite geothermal system. DSIR Chemistry Technical Report No. 92/14. Glover R.B. Klyen L.E. Crump M. E. Spring chemistry of the Waikite-Puakohurea thermal area Proceedings of rhe New Zealand Geothermal Workshop...

...BRIAN JONES; ROBIN W. RENAUT; MICHAEL R. ROSEN; KEVIN M. ANSDELL Abstract Coniform stromatolites are found in several sites in the Tokaanu and Whakarewarewa geothermal areas of North Island, New Zealand. At Tokaanu, silicification of these stromatolites is taking place in Kirihoro, a shallow hot...

... in New Zealand (Waikite Springs and Ohaaki Pool) and Kenya (Lorusio hot springs) shows that they can form in natural sedimentary regimes. Analysis of samples from these deposits shows that this crystal morphology develops under disequilibrium conditions that are unrelated to a specific environmental...

... of the Waikite springs in New Zealand, the mucus plays an active role in the formation of the calcite deposits by providing a template for crystal nucleation and binding the small calcite crystals to the substrate. The latter process is especially important because the flowing waters of the spring could easily...

... and Volcanic Waters and Gas Discharges . Report No. CD2401, Chemistry Division, Department of Scientific and Industrial Research, Petone, New Zealand. Glover R.B. Klyen L.E. Crump M.E. 1992 . The location and geochemistry of natural features in the Waikite geothermal system . Department...

... to the southwest flows from the base of the Te Waro scarp ( Fig. 3 ). The Waikite Spring is a 98 °C boiling bicarbonate spring that flows at a rate of ∼40 l/s ( Glover et al., 1992 ). The bicarbonate content of the Waikite Spring, although heavily diluted compared to other New Zealand bicarbonate geothermal waters...

... (>90 °C) calcite precipitation at Waikite Hot Springs, North Island, New Zealand . Journal of the Geological Society (of London) , 153 : 481 – 496 . Jones B. Renaut R.W. Rosen M.R. 1997a . Biogenicity of silica precipitation around geysers and hot-spring vents, North Island, New...

... a ). More than 500 thermal features, including hot springs, geysers, boiling mud and fumaroles, are present in the Whakarewarewa geothermal area on North Island, New Zealand (Figs.  1 , 2 ) ( Lloyd 1975 ). Most vents in the Waikite Geyser complex and along the Te Puia Fault (Fig.  2 ) at Whakarewarewa...

..., New Zealand, are preserved through replacement and/or encrustation. Organic matter is typically absent, and examples of sheaths being partly replaced or coated by other minerals, such as iron oxide, have not yet been recognized. Accordingly, the cellular-level information needed for microbe...

...Figure 1 Map of North Island of New Zealand showing study locations. A) Taupo Volcanic Zone. B) Location of Whakarewarewa in Taupo Volcanic Zone. C) Map of Whakarewarewa geothermal area showing location of Waikite Geyser complex (box labeled D) and Papakura Geyser (sample F). D) Plan...

... of New Zealand showing location of Whakarewarewa geothermal area. E) Detailed map of Whakarewarewa geothermal area (modified from Jones et al. 2001 ) showing location of Geyser Flat, Te Anarata, and Waikite Geyser. ...

.... , 1994 , Waimangu, Waiotapu, and Waikite Geothermal Systems, New Zealand: Background and history : Geothermics , 23 . 379 – 400 . Jones , B. , Konhauser , K. , Renaut , R.W. , and Wheeler , R.S. , 2004 , Microbial silicification in Iodine Pool, Waimangu geothermal area, North...