Higgs, K.E.; King, P.R.; Sykes, R.; Crouch, E.M.; Browne, G.H.; Chague-Goff, C.; Palmer, J.; Raine, J.I.; Brathwaite, R.L. 2006 Mangahewa Project : a multidisciplinary study of the mid-late Eocene succession, on-shore Taranaki Basin. Version 1. Lower Hutt: GNS Science. GNS Science report 2006/18. 1 CD
Abstract: Most of the currently producing petroleum reserves in the Taranaki Basin are contained within a broadly NE-SW trending fairway of Paleocene- to Eocene-aged sandstones. This study is focused on delineating trends along a NW-SE trending transect line through the mid-late Eocene Mangahewa Formation intersected in 8 wells, cutting perpendicular to the interpreted paleoshoreline.This catalogue provides an interdisciplinary illustrative guide to the Mangahewa Formation. An attempt has been made to correlate the mid-late Eocene deposits by integrating biostratigraphic ages and chemostratigraphy with paleoenvironments from miospores, dinoflagellates and foraminifera and a sedimentological study of available cores and wireline logs. Where possible, 2-D seismic has been used to constrain the main correlation lines and thus provide a more robust framework for building a sequence stratigraphic model. Changes in reservoir mineralogy have also been examined along the transect line using petrographic and X-ray diffraction techniques. (auth)
