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  • Groundwater boreholes are represented by point data with each point having attributes describing location, depth and water levels, if known. Additional attribution characterising aquifer type has been added to the original data for the purposes of this project. The data layer is part of the 'Geology of the Middlemarch area' 1:50 000 dataset covering a part of of East Otago around Middlemarch township.

  • This layer represents quarries and escarpments and is based on LINZ Topo50 data modified using aerial photography and fieldwork.

  • This georeferenced raster image represents aeromagnetic data for the Middlemarch area depicting total magnetic intensity, reduced to pole, upwards continued to 500 metres. The data is part of a geophysical survey undertaken for Glass Earth NZ Ltd. in 2007. The data layer is part of the 'Geology of the Middlemarch area' 1:50 000 dataset covering a part of East Otago around Middlemarch township.

  • The extent and nature of landslide boundaries are represented by line features and described in terms of type and the accuracy with which the boundary is located. The data layer is part of the 'Geology of the Middlemarch area' 1:50 000 dataset covering a part of of East Otago around Middlemarch township.

  • This georeferenced raster image represents electromagnetic data for the Middlemarch area depicting apparent resistivity at 40 000 Hz. The data is part of a geophysical survey undertaken for Glass Earth NZ Ltd. in 2007. The data layer is part of the 'Geology of the Middlemarch area' 1:50 000 dataset covering a part of East Otago around Middlemarch township.

  • Annotation in this layer contains commodity labels for sites in NZL_GNS_GM5_resources_point_50k. The data layer is part of the 'Geology of the Middlemarch area' 1:50 000 dataset covering a part of of East Otago around Middlemarch township.

  • This georeferenced raster image depicts the Bouger gravity field from data generated by the New Zealand gravity station network in 2015. The data layer is part of the 'Geology of the Middlemarch area' 1:50 000 dataset covering a part of East Otago around Middlemarch township.

  • This georeferenced raster image represents electromagnetic data for the Middlemarch area depicting apparent resistivity at 400 Hz. The data is part of a geophysical survey undertaken for Glass Earth NZ Ltd. in 2007. The data layer is part of the 'Geology of the Middlemarch area' 1:50 000 dataset covering a part of East Otago around Middlemarch township.

  • This data layer contains points with each point having attributes describing the type of geological structural measurement, its strike, and dip. It complies with the GeoSciML Portrayal standard and fields required by that standard were populated using the CGI Controlled Vocabulary (2012-11). The data layer is part of the 'Geology of the Middlemarch area' 1:50 000 dataset covering a part of of East Otago around Middlemarch township.

  • The 'Geology of the Hyde-Macraes Shear Zone and Waihemo Fault Zone area' is a 1:50 000 scale map covering a part of East Otago and extending off shore to the Karitane Canyon. This dataset spatially represents the geological boundary information for the area encompassed by this map.