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  • This Feature Class contains Common Risk Segment (CRS) polygon features for denoting the risk of seal rocks being absent within the Eocene succession in sedimentary basins in the Northwest Province (Taranaki, Deepwater Taranaki, and Reinga-Northland basins). Risk is depicted by a relatively simple "traffic-light" system: green colours denote low risk, orange denotes moderate risk, and red colours denote high risk. It is important to note that a rating of high risk (red) for this petroleum systems element does not conclusively rule it out; rather, it indicates that on the basis of currently available open-file information there is a high risk for that factor being able to effectively contribute to the petroleum system in that area. For any given prospective area, more detailed work and data acquisition would be required. For more information about these data please refer to: Arnot, M.J. and Bland, K.J. et al. (Compilers), 2016. Atlas of Petroleum Prospectivity, Northwest Province: ArcGIS geodatabase and technical report. GNS Science Data Series 23b.

  • Known locations of mineral or other geological resource occurrence and/or exploitation are depicted as point data representing a geological resource with each point having attributes describing the commodity present, type of working and lithology, if known. The data layer is part of the 'Geology of the Victoria Range' 1:50 000 dataset covering a part of of the Buller District on the West Coast of the South Island of New Zealand.

  • This Feature Class contains polygon features that summarise the exploration potential of the Late Cretaceous succession within sedimentary basins in the Northwest Province (Taranaki, Deepwater Taranaki, and Reinga-Northland basins). Areas where all of the requirements for oil or gas accumulation are present are indicated as having high exploration potential. Areas where all the requirements are not optimum, but may be present are indicated as areas of moderate exploration potential. Areas of low exploration potential indicates that on the basis of currently available open-file information there is a high risk for one or more of the petroleum systems elements not being able to effectively contribute to the petroleum system in that area. It is important to note that a rating of low exploration potential does not conclusively rule it out; rather, there is a high degree of uncertainty associated with presence of one or more of the petroleum system elements. For any given prospective area, more detailed work and data acquisition would be required. For more information about these data please refer to: Arnot, M.J. and Bland, K.J. et al. (Compilers), 2016. Atlas of Petroleum Prospectivity, Northwest Province: ArcGIS geodatabase and technical report. GNS Science Data Series 23b.

  • This Feature Class presents available open-file age, lithostratigraphic formations, thickness, lithology, paleobathymetric and data source information for petroleum exploration wells relevant to the 20 Ma paleogeographic map.

  • This dataset represents the resources present at or near the surface and comprises points with attributes describing the type of resource. The dataset is part of the Geology of the Hyde-Macraes Shear Zone and Waihemo Fault Zone area, northeastern Otago collection produced by GNS Science. The mapping frame within which the features have been observed is defined as surface geology (i.e. the bedrock and superficial deposits that are exposed at the topographic surface or would be visible if the overlying soil was removed). The data structure complies with the GeoSciML 4.1 standard, where relevant, and uses the appropriate CGI Controlled Vocabularies. This dataset forms part of Martin AP, Smith Lyttle B, Allibone AH, Blakemore H, Cox SC, Craw D, Doyle S, Kellett RL, MacKenzie DJ, Mortimer N, Ritchie T, Sahoo TR, Stephens S, 2021. Geology of the Hyde-Macraes Shear Zone and Waihemo Fault Zone area, northeastern Otago. GNS Science Geological Map 9. Lower Hutt, New Zealand. GNS Science. For more information on data, distribution options and formats visit https://doi.org/10.21420/59NX-QR39.

  • This Feature Class contains contours that depict the interpreted depth below sea level in milliseconds two-way-time (TWT) to the P50 (c. 35 Ma; base-Oligocene; base of New Zealand Whaingaroan Stage) horizon in the Northwest Province of the Atlas of Petroleum Prospectivity (namely the Taranaki, Deepwater Taranaki, and Reinga-Northland basins). For more information about the seismic horizon naming scheme used in this project please refer to: Strogen, D.P.; King, P.R. 2014. A new Zealandia-wide seismic horizon naming scheme. Lower Hutt, NZ: GNS Science. GNS Science report 2014/34. 20 p. The TWT grids, from which these contours were derived, were generated in Paradigm 2015 SeisEarth software using an adaptive fitting algorithm and a grid resolution of 1 km x 1 km. Faults have not been incorporated into the regional-scale gridding of the TWT maps in this project. The TWT grids were then exported from SeisEarth (Zmap format), checked for internal consistency in Zetaware (Trinity 4.61), edited as needed to account for gridding errors and then exported as ArcView Ascii grids, imported and contoured with Esri's ArcGIS software. Contour spacing is 250 ms. Given the considerable variability in the spacing and density of 2D seismic data over the entire NWP area the "smoothness" of the TWT maps varies accordingly. In the central Taranaki Basin, where seismic line spacing may be 5 km or less, the 1 km x 1 km grid resolution captures the geological complexity well. However, in areas of the NWP such as the Deepwater Taranaki Basin to the west and Reinga Basin in the north, seismic line spacing may be in the order of 15 to 30 km. In such areas the underlying geological complexity is only captured where seismic interpretation exists along the available 2D seismic lines. For further information on these data, please refer to: Arnot, M.J. and Bland, K.J. et al. (Compilers), 2016. Atlas of Petroleum Prospectivity, Northwest Province: ArcGIS geodatabase and technical report. GNS Science Data Series 23b.

  • This Feature Class contains, as a polygon feature, the outline of the southern Taranaki Basin mapping area, part of GNS Science's "4D Taranaki Project" (4DT) within the Petroleum Basins Research (PBR) programme. It is recognised that whilst the APP NWP seismic mapping has been undertaken at an appropriate resolution for a frontier basin, GNS Science has over the past decade put significant effort into mapping, modelling, and depth conversion in the southern Taranaki Basin region (refer Bull et al., 2015: Depth structure maps, isopach maps and a regional velocity model from the southern Taranaki Basin (4D Taranaki Project). GNS Science Data Series 12c). In particular, the more sophisticated velocity modelling in the southern Taranaki Basin results in a more robust depth conversion in the areas that have experienced significant uplift and erosion during the Miocene compressional phases. Due to the availability of better resolution depth-converted data in the south, the APP's NWP grids were overwritten with the relevant southern Taranaki Basin mapped intervals to take advantage of this more robust depth conversion. As the cell size of the Bull et al. (2015) grids is finer than the NWP grids, the former were down sampled to 1 km x 1 km cell size to match the NWP gridding. Although the TWT interpretation is constant across the models' boundary, it was found that due to the different depth conversion methods applied there was a marked step in between depth grids. It was decided to leave this footprint artefact to help differentiate between the two modelled areas rather than smoothing the join.

  • The Dam polygons signify the area of landslide debris that blocked the watercourse, forming the landslide dam. Where possible, this includes only the debris that formed the dam while other debris that did not block the watercourse has been mapped separately into the DebrisTrail feature class. Occasionally, the Dam polygon may be representative of the whole landslide deposit. In some instances, the dam no longer exists in the landscape and its extent has been interpreted. The Dam was delineated using a variety of methods from manual mapping on 1 m resolution LiDAR to unsupervised techniques using remote sensing. The quality of data (e.g., resolution, accuracy, etc.) therefore varies depending on the technique used (linked to the QualityRankings table). This feature class contains attributes that are specific to the landslide dam.

  • This Feature Class contains paleogeographic line features for 24 Ma (latest Oligocene; New Zealand Waitakian Stage). Features include paleobathymetric contours.

  • This Feature Class contains paleogeographic structural polyline features for sedimentary basins in the Northwest Province (Atlas of Petroleum Prospectivity), namely the Taranaki, Deepwater Taranaki, and Reinga-Northland basins. Features are depicted relative to the modern New Zealand coastline. No palinspastic reconstructions have been undertaken. Polygon features for 51 Ma (Early to Middle Eocene, NZ Stages Waipawan to Heretaungan) are contained in this Feature Class.