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Geophysical investigations of the south-western Wairarapa region of New Zealand

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dc.contributor.author Rollo, Jennifer Louise
dc.date.accessioned 2011-05-20T02:36:54Z
dc.date.accessioned 2022-10-26T04:58:18Z
dc.date.available 2011-05-20T02:36:54Z
dc.date.available 2022-10-26T04:58:18Z
dc.date.copyright 1992
dc.date.issued 1992
dc.identifier.uri https://ir.wgtn.ac.nz/handle/123456789/24370
dc.description.abstract A model of the sub-surface structure of the south-western part of the Wairarapa sedimentary basin in central New Zealand was constructed from geophysical data obtained by the author during the period 1990-1991. A total of 122 new gravity observations, eight magnetotelluric (MT) stations and approximately two kilometres of seismic refraction lines were established in the study area. All methods complemented each other in the determination of the final result. The gravity data provided the depth for the basement layer of the basin, and determined the position of a fossil fault in the region of the Wharepapa River channel. The MT and seismic data confirmed the fossil nature of the fault. The results for the boundaries determined by the MT surveys were also shown to agree with the upper layers of the gravity model. The final model presented is of a sedimentary basin with thickness of approximately 2km, with a fossil fault dividing the basin near the vicinity of the Wharepapa River. To the west of the study area is a highly anomalous region which could not be fully modelled in this study because of lack of data in this particular area. en_NZ
dc.format pdf en_NZ
dc.language en_NZ
dc.language.iso en_NZ
dc.publisher Te Herenga Waka—Victoria University of Wellington en_NZ
dc.title Geophysical investigations of the south-western Wairarapa region of New Zealand en_NZ
dc.type Text en_NZ
vuwschema.type.vuw Awarded Research Masters Thesis en_NZ
thesis.degree.discipline Geophysics en_NZ
thesis.degree.grantor Te Herenga Waka—Victoria University of Wellington en_NZ
thesis.degree.level Masters en_NZ

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