 | | Journal (article/letter/editorial) | | Margin and Intraplate Magmatism, North Island, New Zealand by R. M. BRIGGS 1 AND W. F. McDONOUGH 2 3 1...Department of Earth Sciences, University of Waikato, Hamilton, New Zealand Research School of Earth Sciences,...the Wadati-Benioffzone on the North Island, New Zealand. These two contrasting magma types, together...period (1-60-2-74 Ma) and constitute the Alexandra Volcanics. Field relationships indicate that these diverse...alkalic and convergent margin region. INTRODUCTION The Alexandra Volcanics consist of two contrasting magma |  | | Journal (article/letter/editorial) | | geochemical features of the Okete Volcanics, western North Island, New Zealand Roger M. Briggs 1 and Gordon...Sciences Department, University of Waikato, Hamilton, New Zealand 2 Center for Volcanology, University...Eugene, Oregon, 97403, USA Abstract. The Okete Volcanics form small volume mono- genetic volcanoes situated...Alexandra Volcanics, in the back-arc tectonic environment of western North Island, New Zealand. The lavas...lavas and tufts of the Oketc Volcanics have compositions which include basanites, alkali olivine basalts |  | | Journal (article/letter/editorial) | | Basalts in the South Auckland Volcanic Field, New Zealand: Evidence for Two Coeval Magma Suites from Distinct...SCIENCES, THE UNIVERSITY OF WAIKATO, PRIVATE BAG 3105, HAMILTON, NEW ZEALAND 2 DEPARTMENT OF GEOLOGY,...UNIVERSITY OF AUCKLAND, PRIVATE BAG 92019, AUCKLAND, NEW ZEALAND 3 DEPARTMENT OF EARTH SCIENCES, LA TROBE UNIVERSITY...situated south of Auckland City, North Island, New Zealand. Two groups of basalts are distinguished based...intraplate volcanic fields in North Island, New Zealand (Fig. 1). The field formed between 051 and 159 |  | | Journal (article/letter/editorial) | | diopside in peridotite xenoliths from North Island, New Zealand KEI IKEHATA* AND SHOJI ARAI Department of Earth...Pliocene-Quaternary hawaiite from the Ngatutura volcanic field of the North Island, New Zealand. The diopside is characterized...mantle xenoliths in hawaiite from North Island, New Zealand. Here, we report its petrographic and chemical...peridotite xenoliths. GEOLOGICAL BACKGROUND New Zealand straddles a tectonically active boundary between...monogenetic volcanoes made up of basaltic lava flows, scoria cones, and maars within the Northland and Auckland |  | Hopkins, Jenni L., Timm, Christian, Millet, Marc-Alban, Poirier, André, Wilson, Colin J.N., Leonard, Graham S. (2016) Os isotopic constraints on crustal contamination in Auckland Volcanic Field basalts, New Zealand. Chemical Geology, 439. 83-97 doi:10.1016/j.chemgeo.2016.06.019 | Journal (article/letter/editorial) | | contamination in Auckland Volcanic Field basalts, New Zealand Jenni L. Hopkins, Christian Timm, Marc-Alban...contamination in Auckland Volcanic Field basalts, New Zealand, Chemical Geology (2016), doi: 10.1016/j.chemgeo...contamination in Auckland PT Volcanic Field basalts, New Zealand RI Jenni L. Hopkins*a, Christian Timmb, Marc-Alban... Wellington 6140, New Zealand Science, PO Box 30368, Lower Hutt 5040, New Zealand MA bGNS NU aSchool...basaltic volcanic fields in the North Island, New Zealand. PT Previous studies on AVF eruptive products |  | Price, R. C., Stewart, R. B., Woodhead, J. D., Smith, I. E. M. (1999) Petrogenesis of High-K Arc Magmas: Evidence from Egmont Volcano, North Island, New Zealand. Journal of Petrology, 40 (1) 167-197 doi:10.1093/petroj/40.1.167 | Journal (article/letter/editorial) | | Evidence from Egmont Volcano, North Island, New Zealand R. C. PRICE1∗, R. B. STEWART2, J. D. WOODHEAD3...TECHNOLOGY, THE UNIVERSITY OF WAIKATO, PRIVATE BAG 3105, HAMILTON, NEW ZEALAND 2 DEPARTMENT OF SOIL SCIENCE...SCIENCE, MASSEY UNIVERSITY, PALMERSTON NORTH, NEW ZEALAND 3 SCHOOL OF EARTH SCIENCES, UNIVERSITY OF MELBOURNE...OF GEOLOGY, UNIVERSITY OF AUCKLAND, AUCKLAND, NEW ZEALAND RECEIVED MAY 27, 1997; REVISED TYPESCRIPT ACCEPTED...of volcanic activity in the North Island of New Zealand, and is one of four closely associated Quaternary |  | | | | NORTH ISLAND NEW ZEALAND Poor Kn1ght1 Is • . ,, r ,n H~n & C h1ck...Rivt~r I'. MY OF East C,pe Pf.NEW PLYMO • Cil.pe Eimo C • Portl.lfld I MY Secretar)'...ISLAND f Pq,1 Pt., 1~s II t I SOUTH ISLAND NEW ZEALAND +I s University College Cardiff Library...' _____ TELE - . _, • The Geology of New Zealand Volume 2 •• J-----~---.. ~ ::,,::::j::~....Associate Editors: G. R. Stevens, M. T. Te Punga New Zealand Geological Survey, Department of Scientific and |  | | Book (volume) | | NORTH ISLAND NEW ZEALAND Poor Kn1ght1 Is • . ,, r ,n H~n & C h1ck...Rivt~r I'. MY OF East C,pe Pf.NEW PLYMO • Cil.pe Eimo C • Portl.lfld I MY Secretar)'...ISLAND f Pq,1 Pt., 1~s II t I SOUTH ISLAND NEW ZEALAND +I s University College Cardiff Library...' _____ TELE - . _, • The Geology of New Zealand Volume 2 •• J-----~---.. ~ ::,,::::j::~....Associate Editors: G. R. Stevens, M. T. Te Punga New Zealand Geological Survey, Department of Scientific and |  | | Journal (article/letter/editorial) | | and andesites from the Taupo Volcanic Zone, New Zealand* R. C. PRICE,’M. T. MCCIJLLOCH,’I. E. M. SMITH...Auckland, New Zealand ‘~~~rnent of Soil Science, Massey University, Pa~me~ton North, New Zealand (Received...most westerly expression of volcanic activity in New Zealand’s North Island and is 140 km west of the...of Egmont Volcano is that, through com~ns with volcanics in the TVZ, it provides an opportunity to examine...a subducting plate boundary. This paper presents new Sr, Nd, and Pb isotopic data for young volcanic rocks |
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