Depositional age, facies and cyclicity within the Mangahewa reservoir fairway, Middle to Late Eocene, Taranaki Basin

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Higgs, K.E.; Raine, J.I.; Baur, J.R.; Sykes, R.; King, P.R.; Browne, G.H.; Crouch, E.M. 2012 Depositional age, facies and cyclicity within the Mangahewa reservoir fairway, Middle to Late Eocene, Taranaki Basin. Lower Hutt, N.Z.: GNS Science. GNS Science report 2011/47 108 p. + 1 CD

Abstract: Paleogene (Middle to Upper Eocene) rocks in the Taranaki Basin, New Zealand consist of terrestrial, marginal marine, shallow marine and offshore sediments that record a complex history of transgressive and regressive events. The Eocene reservoir fairway is oriented NE-SW with sandstones in this fairway forming one of the main petroleum exploration targets in New Zealand. In our study we have used biostratigraphic data, together with coal sulphur analyses, core and log data in order to get a better understanding of the depositional system for these strata. We have also undertaken well log correlation and have used this as a basis for interpreting sedimentary cycles and sequences. (auth)