Clay minerals in mudstones of the Taranaki Basin, New Zealand

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Larmer, M.P. 1998 Clay minerals in mudstones of the Taranaki Basin, New Zealand. Lower Hutt: Institute of Geological & Nuclear Sciences. Institute of Geological & Nuclear Sciences science report 98/26 62 p.

Abstract: This study was undertaken to build a database on clay mineral characteristics of fine grained sedimentary rocks in the Taranaki Basin, New Zealand. The information has implications to the petroleum exploration industry by indicating tthe characteristics and potential of mudrocks as sealing lithologies. To characterise the Taranaki Basin formations, outcrop samples were collected from NW Nelson, and from younger formations in the Taranaki Peninsula area. In addition, core, side wall core (SWC), and cuttings samples were collected from two wells within productive petroleum fields, Kupe South-2 and maui-6. A literature search was also conducted on the clay mineralogy of fine-grained units from the Taranaki Basin. (auth)