Whole rock assay data for the El Teniente, Skouries and Muratdere porphyry Cu deposits. Samples were selected for analysis from boreholes in the Muratdere Cu-Au-Mo porphyry deposit, Western Turkey; and the Skouries Cu-Au porphyry deposit, Greece; and samples from the El Teniente Cu-Mo porphyry deposit were selected from the Natural History Museum London’s ore collection. This data contains whole rock assay data performed by ALS, comprising the whole rock concentration of metals and semi-metals from the three deposits. This data was collected as part of the TeaSe consortium NERC grant in order to determine the concentration and hosting of critical and precious metals in various types of ore deposits and barren rocks from different geological environments.

Active Quarries These are quarries and pits in Northern Ireland producing a range of hard rock and aggregate products The data set is based on surveys carried out by GSNI and the data shown comes from the latest compilation completed in 1999 to 2000.

There are three Mining licences as follows: Mining licences This layer shows the spatial distribution of mining licences currently held by companies in Northern Ireland. Each individual licence is shown in outline. January 2010 Mineral Prospecting Licences This layer shows the spatial distribution of mineral exploration licences held by companies in Northern Ireland. Each individual licence is shown in outline Historic Licence Areas This layer shows the spatial distribution of historic mineral licence boundaries in Northern Ireland. The areas where the boundaries of the licences layers appear to overlap reflect temporally different licence periods for the same area. Further information on this data set is available from GSNI (Contact Mark Patton, e-mail: mark.patton@detini.gov.uk).

Mineral Occurrences These data constitute the mineral occurrences in Northern Ireland recorded in Geological Survey of Northern Ireland publications. This index will be updated periodically with the addition of exploration data released from confidentiality under the terms of the Mineral Development Act (NI) 1969. Further information on this data set is available from GSNI (Contact Mark Patton, e-mail: mark.patton@detini.gov.uk).

Geochemical and field data collected from samples from ore deposits hosted in the Troodos ophiolite, Cyprus by Dr Andrew Martin during his PhD. File T1 contains sample names, locations and description and file T2 contains photographs and field observations for sample localities. File T3 contains portable x-ray fluorescence (XRF) data from powdered Troodos ophiolite samples. Files T4 - T8 contain sulphide trace element data from laser-ablation inductively-coupled-plasma mass-spectrometry (LA-ICP-MS) analysis of samples from various deposits in the Troodos ophiotlite. Files T9 and T10 contain bulk sample geochemistry from aqua regia digest and ICP-MS for deposits from the Troodos ophiolite. File T11 contains results from conventional ä34S analysis of sulfide minerals from Troodos deposits and file T12 contains x-ray diffraction analysis data from silica-rich deposits in the Troodos ophiolite. Data is used in papers available at https://doi.org/10.1016/j.oregeorev.2019.01.024, https://doi.org/10.1180/mgm.2018.81 and https://doi.org/10.1016/j.chemgeo.2019.119325 and in Dr Andrew Martin's PhD thesis, available at http://orca.cf.ac.uk/124346/.

This layer of the map based index (GeoIndex) shows the location of available Mineral Assessment Reports, the information for the index has been taken from the BGS UK Sand and Gravel Database. Each report studied the sand and gravel resources of an area of between one hundred and two hundred square kilometres. This layer shows individual polygons of the geographical areas covered by each report. Selecting the individual polygons via the map based index (GeoIndex) application gives details of the corresponding report title, number, author(s), subtitle and the date report was first published. The Department of the Environment commissioned this Report series from the British Geological Survey.

Sample locations and geochemical data from the Aurora Ni-Cu-PGE magmatic sulphide deposit, Northern Bushveld Complex, South Africa. Samples were taken from two boreholes on the La Pucella farm, courtesy of Pan Palladium Limited. This data contains petrological photographs; scanning electron microscope element maps and identification of platinum group minerals and precious metal minerals; and trace element concentration of ore minerals. This data was collected as part of the TeaSe consortium NERC grant in order to determine the concentration and hosting of critical and precious metals in various types of ore deposits and barren rocks from different geological environments. This data was collected and interpreted by researchers at Cardiff University and is used in a paper, available at https://doi.org/10.1016/j.oregeorev.2019.02.008.

Reports of 267 mineral exploration projects carried out in the UK under the Mineral Exploration and Investigation Grants Act (MEIGA). Produced by external mineral exploration companies between 1971 and 1984. Includes project files kept on behalf of DTI (Department of Trade and Industry). All reports are held in hard copy and all are now on openfile.

Petrological and geochemical data of sulphides and samples from the Muratdere Cu-Au-Mo porphyry deposit, Turkey. Samples were taken from several boreholes from the Muratdere mine in Western Turkey, courtesy of Stratex International (now Oriole Resources). This data contains petrological photographs and trace element concentration of ore minerals. This data was collected as part of the TeaSe consortium NERC grant in order to determine the concentration and hosting of critical and precious metals in various types of ore deposits and barren rocks from different geological environments. This data was collected and interpreted by researchers at Cardiff University and is used in a paper, available at https://doi.org/10.5382/econgeo.4638.

This dataset provides an overview of hydrothermal alteration samples from the island of Milos, Greece, that were analysed using a portable infrared mineral analyser (PIMA) or AgriSpec spectrometer. During data acquisition, spectrums were input into The Spectral Geologist (TSG) to provide an instant and estimated mineral identification using the shortwave infrared (SWIR) part of the electromagnetic spectrum. The samples were acquired during field visits between 2017 - 2019 by the British Geological Survey and the GW4+ Doctorial Training Partnership (NE/L002434/1). This data was primarily used to aid sample collection for further hydrothermal alteration analyses to improve our understanding of regional and local paleo-hydrothermal activity across the island. Identification by the TSG provides an estimation only, and the raw data files in .txt, .fos and .csv formats, are supplied for each analysis in the attached zipped file. This may be useful within the metallic and industrial mineral mining sector and associated researchers. The data includes grid references (± 5 m), TSG interpretations, and field/sample observations noted during data acquisition. GW4+ Doctoral Training Partnership (NE/L002434/1) is supported by grant award GA/09F/139 – RMS E3557, and the British Geological Survey’s University Funding Initiative (BUFI S345).