Seismic Database Airborne Database Studies and Reports Well Data
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Greenpeace Deep Sea Oil Briefing
May 2012 Out of our depth: Deep-sea oil exploration in New Zealand greenpeace.org.nz Contents A sea change in Government strategy ......... 4 Safety concerns .............................................. 5 The risks of deep-sea oil ............................... 6 International oil companies in the dock ..... 10 Where is deep-sea oil exploration taking place in New Zealand? ..................... 12 Cover: A view from an altitude of 3200 ft of the oil on the sea surface, originated by the leaking of the Deepwater Horizon wellhead disaster. The BP leased oil platform exploded April 20 and sank after burning, leaking an estimate of more than 200,000 gallons of crude oil per day from the broken pipeline into the sea. © Daniel Beltrá / Greenpeace Right: A penguin lies in oil spilt from the wreck of the Rena © GEMZ Photography 2 l Greenpeace Deep-Sea Oil Briefing l May 2012 The inability of the authorities to cope with the effects of the recent oil spill from the Rena cargo ship, despite the best efforts of Maritime New Zealand, has brought into sharp focus the environmental risks involved in the Government’s decision to open up vast swathes of the country’s coastal waters for deep-sea oil drilling. The Rena accident highlighted the devastation that can be caused by what in global terms is actually still a relatively small oil spill at 350 tonnes and shows the difficulties of mounting a clean-up operation even when the source of the leaking oil is so close to shore. It raised the spectre of the environmental catastrophe that could occur if an accident on the scale of the Deepwater Horizon disaster in the Gulf of Mexico were to occur in New Zealand’s remote waters. -
GNS Science Consultancy Report 2008/XXX
Compilation of seismic reflection data from the Tasman Frontier region, southwest Pacific R. Sutherland P. Viskovic F. Bache V. Stagpoole J. Collot P. Rouillard T. Hashimoto R. Hackney K. Higgins N. Rollet M. Patriat W.R. Roest GNS Science Report 2012/01 March 2012 BIBLIOGRAPHIC REFERENCE 1Sutherland, R.; 1Viskovic, P.; 1Bache, F.; 1Stagpoole, V.; 2Collot, J.; 3Rouillard, P.; 4Hashimoto, T.; 4Hackney, R.; 4Higgins, K.; 4Rollet, N.; 5Patriat, M.; 5Roest, W.R; 2012. Compilation of seismic reflection data from the Tasman Frontier region, southwest Pacific, GNS Science Report 2012/01. 72 p. 1 GNS Science, PO Box 30368, Lower Hutt 5040, New Zealand 2 Service Géologique de Nouvelle-Calédonie (SGNC), Direction de l’Industrie des Mines et de l’Energie de Nouvelle Calédonie (DIMENC), B.P. 465, 98845 Nouméa, New Caledonia 3 Agence de Développement Economique de la Nouvelle-Calédonie (ADECAL), B.P. 2384, Nouméa, New Caledonia 4 Geoscience Australia, GPO Box 378, Canberra ACT 2601, Australia 5 Institut français de recherche pour l'exploitation de la mer (IFREMER), Géosciences marines, Département Ressources physiques et Ecosystèmes de fond de Mer, Institut Carnot EDROME, BP 70, 29280 Plouzané, France © Institute of Geological and Nuclear Sciences Limited, 2012 ISSN 1177-2458 ISBN 978-0-478-19879-9 CONTENTS ABSTRACT .......................................................................................................................... III ACKNOWLEDGEMENTS .................................................................................................... -
Planktonic Foraminifera As Oceanographic Proxies: Comparison of Biogeographic Classifications Using Some Southwest Pacific Core-Top Faunas
Hindawi Publishing Corporation ISRN Oceanography Volume 2013, Article ID 508184, 15 pages http://dx.doi.org/10.5402/2013/508184 Review Article Planktonic Foraminifera as Oceanographic Proxies: Comparison of Biogeographic Classifications Using Some Southwest Pacific Core-Top Faunas G. H. Scott GNS Science, 1 Fairway Drive, Lower Hutt 5010, New Zealand Correspondence should be addressed to G. H. Scott; [email protected] Received 29 April 2013; Accepted 17 June 2013 Academic Editors: M. Elskens and M. T. Maldonado Copyright © 2013 G. H. Scott. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The distribution of planktonic foraminifera, as free-floating protists, is largely controlled by hydrography. Their death assemblages in surficial sediments provide proxy data on upper water mass properties for paleoceanography. Techniques for mapping faunal distributions for this purpose are compared in a study of 35 core-top samples that span the Subtropical Front in the Southwest Pacific. Faunas are analyzed by taxon composition, order of dominant taxa, and abundance. Taxon composition (presence-absence data) and dominant taxa (ordinal data) recognize groups of sites that approximate major water mass distributions (cool subtropical water, subantarctic water) and clearly define the location of the Subtropical Front. Quantitative data (relative abundances) more closely reflect the success of taxa in upper water mass niches. This information resolves groups of sites that reflect differences in intrawater mass hydrography. Comparisons suggest that abundance data should provide much better oceanographic resolution globally than the widely used ordinal biogeographic classification that identifies only Tropical, Subtropical Transitional, Subpolar and Polar provinces. -
Campbell Plateau: a Major Control on the SW Pacific Sector of The
Ocean Sci. Discuss., doi:10.5194/os-2017-36, 2017 Manuscript under review for journal Ocean Sci. Discussion started: 15 May 2017 c Author(s) 2017. CC-BY 3.0 License. Campbell Plateau: A major control on the SW Pacific sector of the Southern Ocean circulation. Aitana Forcén-Vázquez1,2, Michael J. M. Williams1, Melissa Bowen3, Lionel Carter2, and Helen Bostock1 1NIWA 2Victoria University of Wellington 3The University of Auckland Correspondence to: Aitana ([email protected]) Abstract. New Zealand’s subantarctic region is a dynamic oceanographic zone with the Subtropical Front (STF) to the north and the Subantarctic Front (SAF) to the south. Both the fronts and their associated currents are strongly influenced by topog- raphy: the South Island of New Zealand and the Chatham Rise for the STF, and Macquarie Ridge and Campbell Plateau for the SAF. Here for the first time we present a consistent picture across the subantarctic region of the relationships between front 5 positions, bathymetry and water mass structure using eight high resolution oceanographic sections that span the region. Our results show that the northwest side of Campbell Plateau is comparatively warm due to a southward extension of the STF over the plateau. The SAF is steered south and east by Macquarie Ridge and Campbell Plateau, with waters originating in the SAF also found north of the plateau in the Bounty Trough. Subantarctic Mode Water (SAMW) formation is confirmed to exist south of the plateau on the northern side of the SAF in winter, while on Campbell Plateau a deep reservoir persists into the following 10 autumn. -
Mixed Deformation Styles Observed on a Shallow Subduction Thrust, Hikurangi Margin, New Zealand Å
https://doi.org/10.1130/G46367.1 Manuscript received 10 April 2019 Revised manuscript received 21 June 2019 Manuscript accepted 26 June 2019 © 2019 The Authors. Gold Open Access: This paper is published under the terms of the CC-BY license. Published online 16 July 2019 Mixed deformation styles observed on a shallow subduction thrust, Hikurangi margin, New Zealand Å. Fagereng1, H.M. Savage2, J.K. Morgan3, M. Wang4, F. Meneghini5, P.M. Barnes6, R. Bell7, H. Kitajima8, D.D. McNamara9, D.M. Saffer10, L.M. Wallace11, K. Petronotis12, L. LeVay12, and the IODP Expedition 372/375 Scientists* 1School of Earth & Ocean Sciences, Cardiff University, Cardiff CF10 3AT, UK 2Lamont-Doherty Earth Observatory, Columbia University, Palisades, New York 10964, USA 3Department of Earth Science, Rice University, Houston, Texas 77005, USA 4College of Oceanography, Hohai University, Nanjing, Jiangsu 210093, China 5Dipartimento di Scienze della Terra, Universita degli Studi di Pisa, Pisa 56126, Italy 6National Institute of Water and Atmospheric Research, Wellington 6021, New Zealand 7Basins Research Group, Imperial College London, Kensington SW7 2AZ, UK 8Department of Geology and Geophysics, Texas A&M University, College Station, Texas 77845, USA 9Department of Earth, Ocean and Ecological Sciences, University of Liverpool, Liverpool L69 3GP, UK 10Department of Geosciences, The Pennsylvania State University, University Park, Pennsylvania 16802, USA 11GNS Science, Lower Hutt 5040, New Zealand 12International Ocean Discovery Program, Texas A&M University, College Station, Texas 77845, USA ABSTRACT and sampled the Pāpaku thrust at Site U1518 Geophysical observations show spatial and temporal variations in fault slip style on shal- offshore New Zealand’s North Island (Fig. -
Geophysical Structure of the Southern Alps Orogen, South Island, New Zealand
Regional Geophysics chapter 15/04/2007 1 GEOPHYSICAL STRUCTURE OF THE SOUTHERN ALPS OROGEN, SOUTH ISLAND, NEW ZEALAND. F J Davey1, D Eberhart-Phillips2, M D Kohler3, S Bannister1, G Caldwell1, S Henrys1, M Scherwath4, T Stern5, and H van Avendonk6 1GNS Science, Gracefield, Lower Hutt, New Zealand, [email protected] 2GNS Science, Dunedin, New Zealand 3Center for Embedded Networked Sensing, University of California, Los Angeles, California, USA 4Leibniz-Institute of Marine Sciences, IFM-GEOMAR, Kiel, Germany 5School of Earth Sciences, Victoria University of Wellington, Wellington, New Zealand 6Institute of Geophysics, University of Texas, Austin, Texas, USA ABSTRACT The central part of the South Island of New Zealand is a product of the transpressive continental collision of the Pacific and Australian plates during the past 5 million years, prior to which the plate boundary was largely transcurrent for over 10 My. Subduction occurs at the north (west dipping) and south (east dipping) of South Island. The deformation is largely accommodated by the ramping up of the Pacific plate over the Australian plate and near-symmetric mantle shortening. The initial asymmetric crustal deformation may be the result of an initial difference in lithospheric strength or an inherited suture resulting from earlier plate motions. Delamination of the Pacific plate occurs resulting in the uplift and exposure of mid- crustal rocks at the plate boundary fault (Alpine fault) to form a foreland mountain chain. In addition, an asymmetric crustal root (additional 8 - 17 km) is formed, with an underlying mantle downwarp. The crustal root, which thickens southwards, comprises the delaminated lower crust and a thickened overlying middle crust. -
Review of Tsunamigenic Sources of the Bay of Plenty Region, GNS Science Consultancy Report 2011/224
DISCLAIMER This report has been prepared by the Institute of Geological and Nuclear Sciences Limited (GNS Science) exclusively for and under contract to Bay of Plenty regional Council. Unless otherwise agreed in writing by GNS Science, GNS Science accepts no responsibility for any use of, or reliance on any contents of this Report by any person other than Bay of Plenty regional Council and shall not be liable to any person other than Bay of Plenty regional Council, on any ground, for any loss, damage or expense arising from such use or reliance. The data presented in this Report are available to GNS Science for other use from June 2012. BIBLIOGRAPHIC REFERENCE Prasetya, G. and Wang, X. 2011. Review of tsunamigenic sources of the Bay of Plenty region, GNS Science Consultancy Report 2011/224. 74 p. Project Number: 410W1369 Confidential 2011 CONTENTS EXECUTIVE SUMMARY ....................................................................................................... VII 1.0 INTRODUCTION .......................................................................................................... 1 2.0 OVERVIEW OF PREVIOUS STUDIES ........................................................................ 1 2.1 Joint Tsunami Research Project of EBOP and EW (Bell et al. 2004) ............................ 1 2.2 Tsunami Source Study (Goff et al. 2006) ....................................................................... 4 2.2.1 Mw 8.5 Scenarios.............................................................................................. 5 2.2.1.1 -
Methane Seepage Along the Hikurangi Margin, New Zealand
ARTICLE IN PRESS MARGO-04469; No of Pages 20 Marine Geology xxx (2010) xxx–xxx Contents lists available at ScienceDirect Marine Geology journal homepage: www.elsevier.com/locate/margeo Methane seepage along the Hikurangi Margin, New Zealand: Overview of studies in 2006 and 2007 and new evidence from visual, bathymetric and hydroacoustic investigations J. Greinert a,b,⁎, K.B. Lewis c, J. Bialas b, I.A. Pecher d, A. Rowden c, D.A. Bowden c, M. De Batist a, P. Linke b a Renard Centre of Marine Geology (RCMG), Ghent University, Krijgslaan 281 s.8, B-9000 Gent, Belgium b IFM-GEOMAR, Leibniz Institute of Marine Sciences at the University of Kiel, Wischhofstraße 1-3, 24148 Kiel, Germany c National Institute of Water and Atmospheric Research, Private Bag 14 901, Kilbirnie, Wellington, New Zealand d GNS Science, 1 Fairway Drive, Avalon, Lower Hutt 5010, New Zealand article info abstract Article history: This paper is an introduction to and an overview of papers presented in the Special Issue of Marine Geology Received 5 May 2009 “Methane seeps at the Hikurangi Margin, New Zealand”. In 2006 and 2007, three research cruises to the Received in revised form 20 December 2009 Hikurangi Margin at the east coast of New Zealand's North Island were dedicated to studying methane Accepted 23 January 2010 seepage and gas hydrates in an area where early reports suggested they were widespread. Two cruises were Available online xxxx carried out on RV TANGAROA and one on RV SONNE using the complete spectrum of state-of-the-art equipment for geophysics (seismic, sidescan, controlled source electromagnetics, ocean bottom seism- Keywords: fl methane seepage ometers and hydrophones, singlebeam and multibeam), sea oor observations (towed camera systems, gas hydrate ROV), sediment and biological sampling (TV-guided multi-corer, gravity-corer, grab, epibenthic sled), multibeam mapping deployment of in-situ observatories (landers) as well as water column sampling and oceanographic studies hydroacoustic flares (CTD, moorings). -
Bathymetry of the New Zealand Region
ISSN 2538-1016; 11 NEW ZEALAND DEPARTMENT OF SCIENTIFIC AND INDUSTRIAL RESEARCH BULLETIN 161 BATHYMETRY OF THE NEW ZEALAND REGION by J. W. BRODIE New Zealand Oceanographic Institute Wellington New Zealand Oceanographic Institute Memoir No. 11 1964 This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/ Fromispiece: The survey ship HMS Penguin from which many soundings were obtained around the New Zealand coast and in the south-west Pacific in the decade around 1900. (Photograph by courtesy of the Trustees, National Maritime Museum, Greenwich.) This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/ NEW ZEALAND DEPARTMENT OF SCIENTIFIC AND INDUSTRIAL RESEARCH BULLETIN 161 BATHYMETRY OF THE NEW ZEALAND REGION by J. W. BRODIE New Zealand Oceanographic Institute Wellington New Zealand Oceanographic Institute Memoir No. 11 1964 Price: 15s. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/ CONTENTS Page No. ABSTRACT 7 INTRODUCTION 7 Sources of Data 7 Compilation of Charts 8 EARLIER BATHYMETRIC INTERPRETATIONS 10 Carte Gen�rale Bathymetrique des Oceans 17 Discussion 19 NAMES OF OCEAN FLOOR FEATURES 22 Synonymy of Existing Names 22 Newly Named Features .. 23 FEATURES ON THE CHARTS 25 Major Morphological Units 25 Offshore Banks and Seamounts 33 STRUCTURAL POSITION OF NEW ZEALAND 35 The New Zealand Plateau 35 Rocks of the New Zealand Plateau 37 Crustal Thickness Beneath the New Zealand Plateau 38 Chatham Province Features 41 The Alpine Fault 41 Minor Irregularities on the Sea Floor 41 SEDIMENTATION IN THE NEW ZEALAND REGION . -
Seismic Characteristics of Polygonal Fault Systems in the Great South Basin, New Zealand During the Diagenesis Process
Open Geosciences 2020; 12: 851–865 Research Article Sukonmeth Jitmahantakul, Piyaphong Chenrai*, Pitsanupong Kanjanapayont, and Waruntorn Kanitpanyacharoen Seismic characteristics of polygonal fault systems in the Great South Basin, New Zealand https://doi.org/10.1515/geo-2020-0177 during the diagenesis process. Interpretation of the received January 30, 2020; accepted June 12, 2020 polygonal fault in this area is useful in assessing the Abstract: Awell-developed multi-tier polygonal fault migration pathway and seal ability of the Eocene mudstone system is located in the Great South Basin offshore New sequence in the Great South Basin. Zealand’s South Island. The system has been characterised Keywords: seismic interpretation, polygonal fault using a high-quality three-dimensional seismic survey tied system, Great South Basin to available exploration boreholes using regional two- dimensional seismic data. In this study area, two polygonal fault intervals are identified and analysed, Tier 1 and Tier 2. Tier 1 coincides with the Tucker Cove Formation (Late 1 Introduction Eocene) with small polygonal faults. Tier 2 is restricted to ( ) - the Paleocene-to-Late Eocene interval with a great number Since polygonal fault systems PFSs have been dis of large faults. In map view, polygonal fault cells are covered in sedimentary basins worldwide, many PFSs outlined by a series of conjugate pairs of normal faults. The have been studied with respect to petroleum exploration, - polygonal faults are demonstrated to be controlled by such as their seal capacity and as a paleo stress [ – ] ( ) fi depositional facies, specifically offshore bathyal deposits indicator 1 5 . Henriet et al. 1991 rst described PFS characterised by fine-grained clays, marls and muds. -
Exploration of New Zealand's Deepwater Frontier * GNS Science
exploration of New Zealand’s deepwater frontier The New Zealand Exclusive Economic Zone (EEZ) is the 4th largest in the world at about GNS Science Petroleum Research Newsletter 4 million square kilometres or about half the land area of Australia. The Legal Continental February 2008 Shelf claim presently before the United Nations, may add another 1.7 million square kilometres to New Zealand’s jurisdiction. About 30 percent of the EEZ is underlain by sedimentary basins that may be thick enough to generate and trap petroleum. Although introduction small to medium sized discoveries continue to be made in New Zealand, big oil has so far This informal newsletter is produced to tell the eluded the exploration companies. industry about highlights in petroleum-related research at GNS Science. We want to inform Exploration of the New Zealand EEZ has you about research that is going on, and barely started. Deepwater wells will be provide useful information for your operations. drilled in the next few years and encouraging We welcome your opinions and feedback. results would kick start the New Zealand deepwater exploration effort. Research Petroleum research at GNS Science efforts have identified a number of other potential petroleum basins around New Our research programme on New Zealand's Zealand, including the Pegasus Sub-basin, Petroleum Resources receives $2.4M p.a. of basins in the Outer Campbell Plateau, the government funding, through the Foundation of deepwater Solander Basin, the Bellona Basin Research Science and Technology (FRST), between the Challenger Plateau and Lord and is one of the largest research programmes in GNS Science. -
Developing Community-Based Scientific Priorities and New Drilling
Workshop Reports Sci. Dril., 24, 61–70, 2018 https://doi.org/10.5194/sd-24-61-2018 © Author(s) 2018. This work is distributed under the Creative Commons Attribution 4.0 License. Developing community-based scientific priorities and new drilling proposals in the southern Indian and southwestern Pacific oceans Robert McKay1, Neville Exon2, Dietmar Müller3, Karsten Gohl4, Michael Gurnis5, Amelia Shevenell6, Stuart Henrys7, Fumio Inagaki8,9, Dhananjai Pandey10, Jessica Whiteside11, Tina van de Flierdt12, Tim Naish1, Verena Heuer13, Yuki Morono9, Millard Coffin14, Marguerite Godard15, Laura Wallace7, Shuichi Kodaira8, Peter Bijl16, Julien Collot17, Gerald Dickens18, Brandon Dugan19, Ann G. Dunlea20, Ron Hackney21, Minoru Ikehara22, Martin Jutzeler23, Lisa McNeill11, Sushant Naik24, Taryn Noble14, Bradley Opdyke2, Ingo Pecher25, Lowell Stott26, Gabriele Uenzelmann-Neben4, Yatheesh Vadakkeykath24, and Ulrich G. Wortmann27 1Antarctic Research Centre, Victoria University of Wellington, Wellington, 6140, New Zealand 2Research School of Earth Sciences, Australian National University, Canberra, 0200, Australia 3School of Geosciences, The University of Sydney, Sydney, NSW2006, Australia 4Alfred Wegener Institute, Helmholtz Center for Polar and Marine Research, 27568 Bremerhaven, Germany 5California Institute of Technology, Pasadena, CA 91125, USA 6College of Marine Science, University of South Florida, Saint Petersburg, FL 33701, USA 7GNS Science, Lower Hutt, 5040, New Zealand 8Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama 236-0001,