This georeferenced raster image represents aeromagnetic data for the Middlemarch area depicting total magnetic intensity, reduced to pole, second vertical derivative. 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.

Annotation in this layer contains the mapSymbol for polygon features depicted in NZL_GNS_GM5_geological_units_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 Free-air gravity anomalies 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.

The extent and nature of geological faults are represented by line features and described in terms of the exposure, direction of movement, age and activity of the fault and the accuracy with which the fault is located. It complies with the GeoSciML Portrayal standard for ShearDisplacementStructureView 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.

Annotation in this layer contains age information for point features in NZL_GNS_GM5_geochronology_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.

Annotation in this layer contains numeric values for inclination of point features depicted in NZL_GNS_GM5_structural_measuremant_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.

Magnetic lineations are identified as line features and described in terms of relative frequency and amplitude. This data layer contains interpretation of the total magnetic intensity reduced to pole aeromagnetic data from the Glass Earth geophysical survey undertaken 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 symbols depicting fold type and numerals representing generation for line features in NZL_GNS_GM5_folds_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 data layer comprises polygons with each polygon having attributes describing the type of geological unit, its content, name and age. It complies with the GeoSciML Portrayal standard for GeologicUnitView 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.