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Bulgarian National Geological Data Sets

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Title: Bulgarian National Geological Data Sets


1
Bulgarian National Geological Data Sets
  • Valeri Trendafilov, Nikolay Markov
  • Ministry of Environment and Waters
  • National Geofund and Geology

2
Paper Topics
  • Bulgarian National Geofund
  • Bulgarian Geological Data Sets

3
National Geofund
  • A huge amount of data has been collected in a
    field of Geological Sciences in Bulgaria in the
    last 50 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 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    unpublished information to another organizations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.

4
National Geofund
  • The oldest geological report dated from 1925
  • Two ways to find 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 and etc.
  • Using graphical interface for the areas in which
    geological works have been done(an example
    follows).

5
National Geofund
6
Geological Data Sets
  • The metadata for 32 geological data sets and 14
    images as examples were prepared for the GEIXS
    project.
  • The metadata were sent via e-mail to Jan Jillema
    on 2 times.
  • The short descriptions of data sets follow below.

7
Geological Data Sets
  • 1.Geological Map of Bulgaria, Scale 1500000.
  • 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 1100000 and
    available data of the National Geofund.
  • Digital model available (MapInfo).

8
Digital Map
9
Digital Map
  • Fragment of 1500000 map in real scale

10
Geological Data Sets
  • 2. Geological Map of Bulgaria, Scale 1100000.
  • Published Map Series, 86 coloured flat sheets,
    covered all the country, available in Bulgarian
    or in English edition.
  • All available in digital form (MapInfo).

11
Digital Maps
12
Digital Map, example.
13
Geological Data Sets
  • 3. Geological Map of Bulgaria, Scale 125000.
  • 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.

14
Digital Maps
15
Digital Maps, example.
16
Geological Data Sets
  • Geological Maps, Scale - 1500000,1100000,125000
    in GIS format - different layers of
    information
  • Geological boundaries
  • Stratigraphy
  • Lithology
  • Tectonics
  • Rivers
  • Infrastructure - towns, roads, railway

17
Geological Data Sets
  • 4. Geomorphologic Map of Bulgaria, 1100000.
    Unpublished map series, map sheets correspond to
    geological map in scale 1100000.

18
Geological Data Sets
  • 5. Geochemical Map of Bulgaria, 1100000.
  • Unpublished series, presents point-source
    geochemical data. The point data have been
    gridded to create colour classified digital maps.
  • 6. Gravity Map of Bulgaria, 1100000.
  • Unpublished map series, Bouguer anomaly
    contours and location of observations

19
Digital Maps
20
Geological Data Sets
  • 7. Magnetic Map of Bulgaria, 1100000.
  • Unpublished map series, ground magnetic anomaly
    contours and location of digitised data points.

21
Geological Data Sets
  • 8. Map of Mineral Deposits of Bulgaria, 1100000.
    Unpublished map series, consists of point objects
    that represent location of mineral deposits,
    occurrence and indication.
  • 9. Geoarchive - Data set in Bulgarian language
    about all the reports available in National
    Geofund with the key words for searching.
  • 10. Oil and Gas Wells. Data set for all
    the oil and gas wells
  • drilled on the territory of
    Bulgaria, onshore and offshore.
  • 11.Seismic Lines in Bulgaria. Data set consists
    of information from seismic surveys, onshore and
    offshore.

22
Example of interpretation using information from
seismic survey, wells and well logs.
23
Geological Data Sets
  • 12.Aeromagnetic and Gamma Ray Spectrometer Data.
    Regional aero data Location of digitised data
    points along flight lines and calculated values
    of magnetic fields and U,Th, K.

24
Geological Data Sets
  • 13. Exploration Drillholes and Mining Workings.
    Data set consists of information from drillholes
    and mining workings of mineral exploration
    programs.
  • 14. National Balance of Reserves and Resources.
    The data set consists of reserves and resources
    of all metallic, industrial minerals, oil and
    gas, coal deposits in Bulgaria.
  • 15. Tectonic Map of Bulgaria, 1500000.
  • Published map, 2 sheets,
    Bulgarian-English Edition, 1976.

25
Digital Map
  • 16. Magnetic Map of Bulgaria, 1500000.
  • Contour map of Za(nT), produced from grid 5x5km

26
Geological Data Sets
  • 17. Metallogenic Map of Bulgaria, 11000000.
  • Published 1coloured map sheet, English edition,
    1989
  • 18. Map of Delimited Areas of Gold Deposits in
    Bulgaria.
  • Computer map, produced from digitised series of
    maps of scale ranging from 11000 to 125000.
  • 19. Map of Uranium Mineralization in Bulgaria.
  • Computer Map with uranium deposits, occurrences
    and radioactive anomalies, digitised from maps of
    scale 1200000.

27
Geological Data Sets
  • 20. Physical properties of the Rocks.
  • Data set containing information for rock
    samples-coordinates, type of rock, geologic end
    tectonic position and major physical properties.
    Currently updated.
  • 21. Pan sampling data.
  • Data set contains information about position of
    pan samples and quality and quantity of minerals.
    Currently updated.

28
Contents of gold grains in pan samples
29
Geological Data Sets
  • 22. Geological Study Areas in Bulgaria. Computer
    maps of the areas in which geological works have
    been done.
  • 23. 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.
  • 24. Specialised 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.

30
Geological Data Sets
  • 25. Map of the Geological Hazards in Bulgaria,
    1500000.
  • Published Map accompanying with
    explanatory text in booklet, 1 folded colour
    sheet, Bulgarian-English edition, 1994
  • 26.Groundwater Monitoring Design for
    Bulgaria, 11000000
  • Computer map for Groundwater Monitoring
    Design on the base of Geological Map 1500000.
  • 27. Map of Underground Waters, 1500000.
  • Unpublished map, paper copy.
  • 28. Map of Mineral Waters in Bulgaria, 1500000.
  • Unpublished map, paper copy.

31
Geological Data Sets
  • 29. Hydrogeological Map of Bulgaria, 1200000.
  • Published Atlas containing 28 coloured map sheets
    and 16 hydrogeological sections.
  • 30. Map of Resources of Underground Waters in
    Bulgaria, 1200000.
  • Published Atlas containing 28
    coloured map sheets.
  • 31. Map of River System in Bulgaria, 125000.
  • Digital map sheets produced from
    topographic maps.
  • 32. Protected Caves in Bulgaria.
  • Data set contains information about 113 protected
    caves with maps of caves and protected areas.
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