Presentation on theme: "Ministry of Environment and Water National Geofund and Geology"— Presentation transcript:
1Ministry of Environment and Water National Geofund and Geology GIS for processing and analyzing geological data and managing underground resourcesValeri TrendafilovMinistry of Environment and WaterNational Geofund and Geology22, Princess Marie Louse Blvd., 1000 Sofia, Bulgaria
2Paper Topics Bulgarian National Geofund Geological Maps in GIS Exploration of Underground ResourcesExamples
3National GeofundA huge amount of data has been collected in a field of Geological Sciences in Bulgaria in the last years.More than 7000 reports are available in National Geofund covering all aspects of geological activities in Bulgaria including geological mapping, geophysical and geochemical surveys, hydrogeology, exploration of mineral deposits etc. The oldest geological report dated from 1925.The National Geofund is responsible for collecting and storing all geological data in Bulgaria. Part of the data is published. The National Geofund is in charge of disclosure of unpublished information to another organizations under established rules.
4National Geofund Two ways to find the reports of interest In “GeoArchive” Data Base for the reports -using keywords querying. Some keywords - Author name,Title, Year , Location, Map Sheet, Methods, Mineral Resource etc.Using graphical interface (GIS) for the areas in which geological works have been done(an example follows).
6National Geofund Implementation of Information Technologies - 1992 Implementation of GISPrograms financed from the State budget32 data sets available or in progress of creatingMetadata for the sets according GEIXS standardsGEIXS(Geological Electronic Information eXchange System)Espirit No 23802Metadata published on
7National Geofund Other International projects related to GIS: National System for Training of Public Administration inEcological Management of Natural Resources.Contract N IB _JEP , TEMPUS PHARENew Proposals for the5th Framework ProgrammeEnergy, Environment and Sustainable Development:Marine Sediment Information Network for the EuropeanRegional Seas - MARINERSBlack Sea Scene
8Digital Maps - Register and Cadastre of Prospecting and/or Exploration Permits- Maps of Mineral Deposits- Exploration Works- Geochemical and Geophisical Anomalies Maps- Geological Maps- Topographic Maps
9Geological MapsGeological Map of Bulgaria, Scale - 1:500000,1:100000,1:25000 in GIS format - different layers of information :Geological boundariesStratigraphyLithologyTectonicsRiversInfrastructure - towns, roads, railway
10Geological Maps 1. Geological Map of Bulgaria, Scale 1:500000. Published map in 1989, 2 flat coloured sheets covered all territory of Bulgaria, Bulgarian-English edition.The map is compiled on the base of the Geological map of Bulgaria scale 1: and available data of the National Geofund.Digital model available (MapInfo).
13Digital Maps 2. Geological Map of Bulgaria, Scale 1:100000. Published Map Series, 86 coloured flat sheets, covered all the country, availablein Bulgarian or in English edition. All available in digital form (MapInfo).
15Geological Maps 3. Geological Map of Bulgaria, Scale 1:25000. Unpublished map series, standard indexed map sheets, covered mineral potential areas. Reports are available in National Geofund. Some of map sheets are available in digital form(MapInfo). The results from new field geological mapping program are produced directly in digital form and printed. Only Bulgarian edition available.
18Geomorphologic Map4. Geomorphologic Map of Bulgaria, 1: Unpublished map series, map sheets correspond to geological map in scale 1:
19Geochemical Maps 5. Geochemical Map of Bulgaria, Scale 1:100000. Unpublished series, presents point-source geochemical data. The point data have been gridded to create colour classified digital maps.
20Geophysical Maps 6. Gravity Map of Bulgaria, Scale 1:100000 Unpublished map series, Bouguer anomaly contours and location of observations.
21Geophysical Maps 7. Magnetic Map of Bulgaria, 1:100000. Unpublished map series, ground magnetic anomaly contours and location of digitised data points.
23Digital Map Magnetic Map of Bulgaria, 1:500000. Contour map of Za(nT), produced from grid 5x5km
24Geological Maps8.Aeromagnetic and Gamma Ray Spectrometer Data. Regional aero data: Location of digitised data points(2.5 millions) along flight lines and calculated values of magnetic fields and U,Th, K.
25Geological Exploration 9. Exploration Drillholes and Mining Workings. Data set consists of information from drillholes and mining workings of mineral exploration programs.
26Digital Maps10. Seismic Lines in Bulgaria. Data set consists of information fromseismic surveys, onshore and offshore.3930 lines - onshore1573 lines - offshore
27Geological Data Sets11. Oil and Gas Wells. Data set for all the oil and gas wells drilled on the territory of Bulgaria, onshore and offshore wells.
28Geological Data Sets12. Map of Mineral Deposits of Bulgaria, 1: Unpublished map series, consists of point objects that represent location of mineral deposits, occurrence and indication. Total number of objects 7787.
29Geological Data Sets13. Register and Cadastre of Prospecting and/or Exploration Permits. Register and Cadastre of permits for prospecting and/or exploration of underground resources issued by the state authorities according UNDERGROUND RESOURCES ACT.Current International Licensing Rounds are Announced on Web:
30Contents of gold grains in pan samples Examples - Pan sampling data.Data set contains information about position of pan samplesand quality and quantity of minerals. Currently updated.Contents of gold grains in pan samples
31Examples - Gold Exploration Computer map, produced from digitised series of maps of scale ranging from 1:1000 to 1:25000.
35Example of interpretation using information from seismic survey, wells and well logs.
36Other Data SetsSpecialised Cadastre of Deposits and Register of Discoveries. Data set contains maps of mineral deposits and information about the discoveries of underground resources made as a result of geological research.Map of River System in Bulgaria, Scale 1:25000.Digital map sheets produced from topographic maps.Groundwater Monitoring Design for Bulgaria, 1:Computer map for Groundwater Monitoring Design on the base of Geological Map 1:
37Other Data Sets Protected Caves in Bulgaria. Data set contains information about 113 protected caves with maps of caves and protected areas.