+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Magnetotelluric sounding of the Hikurangi Margin, New Zealand

Magnetotelluric sounding of the Hikurangi Margin, New Zealand

Geophysical Journal International 144(2): 343-355

Magnetotelluric soundings from 30 sites on the Hikurangi margin have been used to image the electrical resisitivity structure associated with subduction of the Pacific Plate beneath the Australian Plate along the east coast of the North Island of New Zealand. The data are generally 2-D in nature and exhibit a strike orientation that is compatible with the observed tectonic strike of the margin. 1-D inversions on invariant impedance responses from sites on a transect parallel of this orientation yield and electrical structure that correlates with both the near-surface geology and the results of a seismic refraction profile. 2-D inversion and forward modelling of responses from a transect across the margin not only clearly identify surface conductive sediments associated with the outer forearc region but also suggest the possibility of a thin conductive zone immediately above the plate interface. The conductive layer is coincident with a low-velocity region identified by seismic results and has been interpreted as being due to subducted sediments.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 019361031

Download citation: RISBibTeXText

DOI: 10.1046/j.0956-540x.2000.01330.x

Related references

Seismic characterisation of gas hydrate systems associated with active margin sediments, Hikurangi margin, New Zealand. Geoscience Society of New Zealand Miscellaneous Publication 129: 99, 2010

Individualization of a forearc basin during the active margin evolution; Hikurangi subduction margin, New Zealand. Comptes Rendus de l'Academie des Sciences, Serie II Sciences de la Terre et des Planetes, 1997

Morphostructure and evolution of submarine canyons across an active margin; Cook Strait sector of the Hikurangi Margin, New Zealand. Marine Geology 260.1-4, 2009

Relations between large scale rotations and tectonic deformations in an active margin setting; Hikurangi subduction margin (New Zealand). Memoires Geosciences-Montpellier 14: 253-257, 1999

From a passive to an active margin; tectonic and sedimentary processes linked to the birth of an accretionary prism (Hikurangi Margin, New Zealand). Bulletin de la Societe Geologique de France, Huitieme Serie 162(4): 649-660, 1991

Methane seeps at the Hikurangi Margin, New Zealand. Marine Geology 272.1-4, 2010

Electrical structure of the Hikurangi margin, New Zealand. International Union of Geodesy and Geophysics General Assembly = Union Geodesique et Geophysique Internationale Comptes Rendus de la, 1999

Structural transition at the southern Hikurangi Margin, New Zealand. New Zealand Geophysical Society : posium, Abstracts. 1995; Pages ; unpaginated. 1995., 1995

Seismotectonics of the Hikurangi Margin and North Island, New Zealand. New Zealand Geophysical Society : posium, Abstracts. 1995; Pages ; unpaginated. 1995., 1995

Novel cold seep habitat along the Hikurangi margin New Zealand. Geophysical Research Abstracts 10, 2008

Gas hydrates exploration on the Hikurangi margin, New Zealand, 2010. GNS Science Report: 31, 2010

Paleomagnetically observed rotations along the Hikurangi margin of New Zealand. NATO ASI Series Series C: Mathematical and Physical Sciences, 1989

Evolution of the Poverty Bay Indentation, Hikurangi margin, New Zealand. Geological Society of New Zealand Miscellaneous Publication 125: 111, 2008

Investigation of magnetotelluric sounding for lithosphere in the Qinghai-Xizang Plateau and its eastern margin region. Diqiu Wuli Diqiu Huaxue Kancha Yanjiusho Shokan = Bulletin of the Institute of Geophysical and Geochemical Exploration, Ministry of Geology and Mineral Resources 4: 255-269, 1990

Subduction and back-arc activity at the Hikurangi convergent margin, New Zealand. Pure and Applied Geophysics 129(1-2): 203-231, 1989