East Coast

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Whakataki Beach - Brad Field

East Coast Source Rock Properties Database

Ventura, G.T., et al. 2011

Free for download from New Zealand Petroleum Basin Explorer (PBE)

This database provides Rock-Eval pyrolysis and vitrinite reflectance data for 1115 well and outcrop samples of Cretaceous to Neogene rocks from the East Coast Basin of New Zealand. It represents an update of the earlier database of Hollis & Manzano-Kareah (2005). Various sample stratigraphic assignments have been updated and additional data have been included from public domain reports, university theses, and unpublished GNS Science data sets.

Bibliographic reference

Ventura, G.T.; Field, B.D.; Sykes, R. 2013. East Coast Basin Source Rock Properties. GNS Science Data Series 22a.

Geological Transect Across the Wairoa Area

Field, B., et al. 2011

FREE in the New Zealand Petroleum Basin Explorer (PBE)

GNS Science Data Series 11a product compiles industry and research data on the Wairoa area of northern Hawke's Bay and summarises interpretations and conclusions relating mainly to the hydrocarbon reservoir potential of the Middle Miocene Tunanui Formation. Aspects addressed include clastic and fractured reservoir quality, seal quality, seismic interpretation and facies, faults and fault seal and the present stress regime.

Bibliographic reference

Field, B., Baur, J., Bland, K., Browne, G., Griffin, A., Ilg, B., Juniper, Z., Lawrence, M., Marrett, R., Mildren, S., Milner, M., Morgans, H., Roncaglia, L., Uruski, C., Zhu H. 2011. Geological Transect Across the Wairoa Area: Insights into elements of the East Coast petroleum system. GNS Science Data Series 11a.

A Play Based Assessment of the Pegasus and East Coast Basins

Isaac, M., et al. 2012

FREE in the New Zealand Petroleum Basin Explorer (PBE)

The study was intended to be the first element of an Offshore Prospectivity Atlas, the intent of which is to provide a systematic baseline ready-reference tool for petroleum explorers, to help them quickly evaluate basins, provinces, trends, plays and permits. The first module, comprising foundation GIS data layers and explanatory text for the whole country, is available from the web through GNS Science’s Petroleum Basin Explorer. For the second module, NZP&M selected the Pegasus and East Coast basins as the highest priority.

Text tiled in layers according to level of detail is available as a stand-alone product and on line from GNS through Petroleum Basin Explorer. The assessment includes tabular data, images of seismic surveys, maps derived from the interpretation of seismic data, transects, outcrop photographs and photomicrographs, and links to other data sets.

New Zealand Stratlink - Interactive Basin Chronostratigraphic Transects.

King, P. R, Boyes, A. F., et al. 2011

FREE in the New Zealand Petroleum Basin Explorer (PBE)

A digitally remastered, full colour version of the Folio 1: Cretaceous to recent Sedimentary Patterns in New Zealand. Each transect is provided as an individual PDF document, with built-in interactive links. The original chronostratigraphy in each basin has been updated to the New Zealand Geological Timescale 2010/1 with the use of Time Scale Creator software.

Within each transect there are also internal clickable links to measured sections, selected well summary sheets (displaying lithological and stratigraphic information with links to well header data), and brief formation descriptions (with external links to the New Zealand Stratigraphic lexicon).

East Coast and Pegasus Basins Seismic Sequence Stratigraphy

Bland, K.J., 2012

FREE in the New Zealand Petroleum Basin Explorer (PBE)

This product presents sequence stratigraphic, and some seismic facies and structural interpretation on five composite seismic lines, using precursor regional-scale seismic horizon mapping undertaken by GNS Science. The seismic transects have been interpreted to illustrate the depositional and structural architecture of East Coast and Pegasus Basins.

All four transects have been presented in three ways within a single Adobe PDF. Firstly, an un-interpreted panel is shown to provide a frame of reference for the following interpretations. The second panel depicts the interpreted distribution of a series of regionally extensive seismic horizons and the strata that they encapsulate. The third panel provides a generalised interpretation of sequence boundaries, channels, and packages of turbidites/basin-floor fans, mass transport deposits (MTDs) and progradational wedges. On some profiles volcanic edifices have been highlighted.