References
- Allen , S. R. , Bryner , V. F. , Smith , I. E. M. and Ballance , P. F. 1996 . Facies analysis of pyroclastic deposits within basaltic tuff‐rings of the Auckland volcanic field, New Zealand. . New Zealand Journal of Geology and Geophysics , 39 : 309 – 327 .
- Büchel , G. 1987 . Geophysik der Eifel‐Maare. . Mainzer geowissenschaftliche Mitteilungen , 16 : 227 – 274 .
- Cooper , G. R. J. 1992 . GeoModel, combined magnetic and gravity modelling, Version 1.3. , Johannesburg : University of the Witwatersrand .
- Cox , M. E. and Browne , P. R. L. Structural setting of Ngawha Geothermal System, North Island, New Zealand . Proceedings 14th New Zealand Geothermal Workshop . pp. 337 – 344 .
- Evans , R. 1994 . Sheet P05—Kaikohe. Geological map of Northland 1:50 000 Kerikeri [privately published]
- Fisher , R. V. and Schmincke , H.‐U . 1984 . Pyroclastic rocks , 472 Berlin, Heidelberg, New York, Tokyo : Springer .
- Harland , W. B. , Armstrong , R. L. , Cox , A. V. , Craig , L. E. , Smith , A. G. and Smith , D. G. 1989 . A geologic time scale 1989. , 263 Cambridge, New York, Port Chester, Melbourne, Sydney : Cambridge University Press .
- Kermode , L. 1992 . Geology of the Auckland urban area. , Institute of Geological & Nuclear Sciences Geological Map 2.63
- Lorenz , V. 1982 . Maare und Schlackenkegel der Westeifel. . Spektrum der Wissenschaft 2 , 1982 : 26 – 37 .
- Mertes , H. 1983 . Aufbau und Genese des Westeifeler Vulkanfeldes . Bochumer geologische und Geotechnische Arbeiten , 9 : 415
- Meyer , W. 1985 . Zur Entstehung der Maare in der Eifel. . Zeitschrift der Deutschen Geologischen Gesellschaft , 136 : 141 – 155 .
- Rout , D. J. , Cassidy , J. , Locke , C. A. and Smith , I. E. M. 1993 . Geophysical evidence for temporal and structural relationships within the monogenetic basalt volcanoes of the Auckland volcanic field, northern New Zealand. . Journal of Volcanology and Geothermal Research , 57 : 71 – 83 .
- Skinner , D. N. B. 1981 . Geological setting and sub‐surface geology of Ngawha. . DSIR Geothermal Report , 7 : 14 – 35 .
- Smith , I. E. M. , Okada , T. , Itaya , T. and Black , P. M. 1993 . Age relationships and tectonic implications of late Cenozoic basaltic volcanism in Northland, New Zealand. . New Zealand Journal of Geology and Geophysics , 36 : 385 – 393 .
- White , J. D. L. 1996 . Impure coolants and interaction dynamics of phreatomagmatic eruptions. . Journal of Volcanology and Geothermal Research , 74 : 155 – 170 .
- Zolitschka , B. , Negendank , J. F. W. and Lottermoser , B. G. 1995 . Sedimentological proof and dating of the early Holocene volcanic eruption of Ulmener Maar (Vulkaneifel, Germany). . Geologische Rundschau , 84 : 213 – 219 .