Services

Environmental studies and geotourism

The Earth’s geological potential involves not only its mineral and energy resources and land-use for construction, but also wildlife, educational and recreational values. Environmental information and geotourism contribute to people’s responsibility for the environment and their ability to integrate environmental considerations into all decision-making in an informed manner.

Environmental studies
Environmental knowledge extends to whatever puts quality and content into people’s lives. Ultimately environmental awareness aims at changing people’s environmental attitudes and more importantly, their behaviour.

Geotourism
Geological as well as biological features may attract nature lovers and tourists. Natural attractions can also generate considerable service business. Tourism should be organized on a sustainable basis to ensure that these attractions give lasting pleasure to future generations.

Tanzania has some of the geological wonders of the world as geotouristic attractions. Among the most prominent attractions include

  • Ngorongoro Crater: one of the ten wonders of the world and largest volcanic crater in the world.
  • Kilimanjaro mountain: The roof of Africa standing at 5,895 m.a.s.l and is the highest volcanic peak in the world.
  • Oldonyo Lengai: The only natro-carbornatite volcano on the planet earth.
  • Olduvai Gorge: Spectacular and very fertile volcanic ash blankets laid over Precambrian age (about 2 billion years old) and Neo proterozoic eclogites at Chisi. Metamorphic rocks. It is the place where remains of the earliest man were found.
  • East African Rift Valley: Host of largest and deepest lakes of Africa, diverse types of evaporates, salt deposits, hot springs and magnificent cinder cones and craters.
  • Mautia Hill: The only locality in the world where the mineral yoderite occurs in nature in a complex skarn – type metamorphic mineral assemblage
  • Eclogite occurrences: The most ancient ultra high pressure “eclogites” at Yalumba, Ikola, and Kungwe Bay of Paleoproterozoic

To develop geotourism GST provides:
Evaluation of regional nature values.
Mapping and popularization of nature targets.
Innovative design of geo-parks, trails and visitor centres of geological attractions.
Production of educational and tuition materials (guide books, site information, multimedia presentations, in-depth studies).

Land use and planning
Developing infrastructure such as large buildings, roads, railways, air ports, power stations, telecommunication, construction of water dams and gas distribution networks, depend on geological information of the ground.

GST has skills and equipment to carry out geological and geophysical studies on the ground and to transform the recorded data into useful information and provide geo-technical recommendations.

Teaching materials
Teaching kits containing rocks and minerals are supplied to schools and other training institutions as teaching materials (see price list) .

Geo Database Services

Cartographic services
GST offers GIS based cartographic services on processing and production of digital and analogue maps used in the mineral sector and other sectors of the economy.

Other cartographic services offered include:

  • Processing and producing customer-tailored maps.
  • Provision of map printing services to external customers.
  • Provision of digitization.
  • Provision of map enlargement and reduction.
  • Provision of dyeline map production.
  • Scanning.
  • Binding.
  • Photocopying.

Library services
The library of the Geological Survey of Tanzania is the main library for geoscience information in Tanzania. The library provides services to staff, geoscientific organisations and universities as well as members of the public.

The GST library, holds more than fourteen thousand (14,000) items. The holdings include more than seven hundred (700) geologic maps and more than 2,800 geophysical maps. It also houses monographs and conference volumes, theses and dissertations, CD-ROMs. In addition to purchasing, materials are acquired through exchange agreements with both national and international organisations. The library material is also available to users through interlibrary loans. The Library is also currently the sale centre of geoscientific products from GST.

Archives
The Geological Archives render services to GST staff and external customers. External customers are normally charged minimal charges for search service.
The Archives database contains unpublished, classified, and open file reports, field notebooks, maps, old mine plans, slides and CD-ROMs. The time coverage of the reports is from 1885 to present.

Copies of the material can be ordered (price list) . Also increasing amount of reports is available in full-text and the material can be studied in the Archives.

Drill cores
GST is the national custodian for drill cores. GST houses thousands of meters of diamond drill cores obtained from drilling operations carried out by mineral exploration and mining companies and GST. Drill Core Register contains basic metadata about cores. (price list)

Rock Library services
The Rock Library contains varieties of rock and mineral samples from the mapped areas of the country. These samples are well documented and are available to the investors and researchers.

Geological Museum at GST as centre of learning
The museum has a variety of rocks, minerals and fossils collected from within the country and abroad.

The Geological Museum has an exchange program with other Geological Museums in the world, whereby exchanges are made for geological samples and other materials including, meteorites and fossils for similar samples from other parts of the world.

Visitors from Tanzania and outside the country visit the Museum to see and learn from the rich geological collections of Tanzania and some of the products of GST (price list)

Laboratory Services

price list

The GST laboratory is among the leading establishment in the country undertaking chemical, mineralogical, petrological analyses of mineral, soil, rock and water samples. It also provides services on environmental studies and mineral beneficiation tests.

GST Laboratory has developed a Quality Assurance System (QAS), which complies with the ISO/IEC 17025-General Requirements for the Competence of Testing and Calibration Laboratories.

Chemical analysis
Services offered include: sample preparation, fire assay and wet chemistry analysis. The chemical laboratory performs a wide range of determinations, which include:

  • Major elements (SiO2, Al2O3, TiO2, P2O5, CaO, Fe2O3, K2O, MgO, MnO and Na2O.
  • Base metals (Pb, Zn, Ni, Cu).
  • Trace elements (Ag, As, CO, Cr, Cu, MO, Ni, Pb, Zn, Au, Hg).
  • Precious metals (Au, Ag).
  • Water analysis (both clean and waste) for various components such TDS, sulphates, conductivity, salinity, pH, turbidity, colour and cations are analysed in water colour.
  • Pollutant elements (metals) such as: mercury, lead, zinc, cadmium, arsenic and selenium.

Petrophysical measurement
Petrophysical properties of rocks are essential for interpreting geophysical measurements and in assessing geochemical, mineralogy and geophysical constituents of rocks. The Geological Survey of Tanzania (GST) undertakes petrophysical measurements for determining petrophysical properties of rock and ore samples.

The following petrophysical measurements are undertaken:

  • Magnetic susceptibility of rocks
  • Remanent magnetization
  • Q – ratio calculation.
  • Rock density.
  • Rock conductivity.

Petrophysical Laboratory
The Geological Survey of Tanzania (GST) has a petrophysical laboratory for measuring petrophysical properties of rock and ore samples. Petrophysical parameters can be used for quantification of geophysical interpretations and have also direct geological applications.

Petrophysical laboratory measurements include density, porosity, magnetic susceptibility and remanent magnetization and galvanic or inductive resistivity.

The GST laboratory equipment has been developed for rapid measurement of many samples with high accuracy. Measured data are currently stored in a database, and data analyses and summaries are available for scientific and commercial purposes.

Geophysical Services

Price list

Geophysical data and information is widely used in the mineral exploration, infrastructure building and the environmental assessment.

GST offers a wide range of geophysical field surveys for exploration, geological mapping, environmental studies, urban and physical planning, and basic research. Instrumentation includes magnetometers, gravimeters, seismographs, spectral IP, and EM wide-band deep sounding equipment. Geophysical field teams work closely with exploration companies in the field, conducting geophysical surveys in order to verify performance and gain credibility.

Geophysical services offered include price list

  • Magnetic survey
  • Electromagnetic (EM) survey
  • Radiometric survey
  • Induced polarisation (IP)
  • Gravity survey
  • Borehole logging

Geological Services

price list

Reconnaissance exploration
Regional geological mapping
Remote sensing
Photogeological interpretation
Stream sediment geochemistry
Geophysical surveys
Detailed exploration
Detailed geological mapping
Geochemical survey
Stream sediments sampling
Soil sampling
Rock chip sampling
Core drilling
Geophysical survey
Magnetic survey
Electromagnetic survey (EM)
Radiometric survey
Induced polarisation (IP)
Gravity survey

Extension services are offered to institutions, individuals and small scale miners.

Petrological and mineralogical studies

The Mineralogy and petrology laboratory section is equipped with modern facilities for sample preparation, analyzing different minerals, rocks and identification of gemstones. The laboratory offers services on preparation of thin and polished sections, micropetrographic studies and gemological studies.

Lapidary

The laboratory offers services for rock cutting and polishing as per customer demand. The laboratory cuts and polishes specimens for dimension and decoration stones.


Preparation of rock samples at the lapidary unit

Mineral processing

The minerals processing laboratory incorporates facilities for technology testing in mineral separation using magnetic, electrostatic, gravitational, froth flotation and gold cyanidation techniques. Upgrading tests on industrial minerals are also conducted.


Denver froth flotation cell

Engineering Geology Unit and Laboratory

FUNCTIONS

  • To conduct engineering geological studies and provide advice on land use planning, construction and mining industry.

In carrying out the above function, the laboratory is undertaking the following activities:

  1. Geotechnical Investigations for construction purposes.
  2. Rock mechanics analysis for construction and mining purposes.
  3. Slope stability analysis for geo-hazards studies.
  4. Laboratory material testing for soil and rock mechanics.
    5.Soil classification.
    6.Determination of engineering properties of aggregates(Aggregate tests).


Compressive/Crushing Machine

CHEMICAL LABORATORY EQUIPMENTS

  1. XRF- EPSILONS
  2. XRF- MINIPAL 4
  3. ICP-OES
  4. AAS FITTED WITH GRAPHITE FURNANCE
  5. AAS- 50- ATOMIC ABSORBTION SPECTROMETER
  6. AAS- 55 B- ATOMIC ABSORBTION SPECTROMETER
  7. CS- ANALYSER
  8. SPECTRAPHOTOMETER- UV/VIS
  9. CENTRIFUGE- 5702
  10. CENTRIFUGE- 46933
  11. HEATING PANNEL
  12. HOT PLATE
  13. FURNANCE -3PCS
  14. PH METER- P90
  15. PH METER-
  16. HOT PLATE- CLIFTON
  17. MAGNETIC STRIAR - LABCON
  18. BALANCE -ADAM EQUIPMENT
  19. BALANCE -METTLER TOLEDO
  20. BALANCE - EGB -HT
  21. BALANCE -N61
  22. CUPPEL MAKER
  23. SAMPLE MIXIES - JURGENS
  24. SWINGING MILL WITH AGATE CONTENER (HERZOG)
  25. PULIRENZER
  26. SAMPLE DRIER - INFRA RED
  27. SIEVE SHAKER
  28. JAWCRUSHER - BB2
  29. SWINGING MILL WITH AGATE CONTENER
  30. SAMPLE SPILINTER - RET SCH
  31. PRESSER - PITIT - DICKIE & STOCKL
  32. WATER BATH - DIGITAL ULTRASONIC BATH
  33. KJELDAH
  34. FURNANCE - MUFFLE

  35. SAMPLE MIXER- J S 14 -M

    PETROLOGY AND MINERALOGY EQUIPMENTS

  36. OPTIKA POLARIZING MICROSCOPE -2
  37. ZEIS AXIOLAB POLARIZING MICROSCOPE
  38. MEIJI TECHNO POLARIZING MICROSCOPE
  39. WILD M3C BINSCULAR MICROSCOPE
  40. SYNTEST IMMERSIONSCOPE
  41. SARTOPIUS HYDIOSCOPIC BALANCE
  42. POLANISCOPE (M4)
  43. REFRACTOMETER (GEMLED)
  44. JAMES SWIFT (GRAIN COUNTER)
  45. NORTON CLIPPER ROCK CUTTING MACHINE
  46. STRUE DISCOPLAN - TS GRINDING & CUTTING
  47. COMPRESSOR
  48. JEAN WIRTZ POLISHING MACHINE
  49. LOGITECH THIN SECTION CUT OH SAW

  50. HOT PLATE

    MINERAL PROCESSING LABORATORY EQUIPMENTS

  51. ROD/BALL MILL
  52. ORE FEEDER - (2)
  53. SHAKING TABLE
  54. CLASSIFIER
  55. HUMPHREY CONCENTRATE
  56. MUD PUMP
  57. H.M.S (HEAVY MEDIA SEPARATOR)
  58. TROMMELS CONCENTRATE
  59. BOWL GRINDER
  60. HYDRO CYCLONE
  61. MAGNETIC SEPARATOR (DRY) CONTINOUS
  62. OVEN/DIYER (2)
  63. ELECTROSTATIC SEPARATOR
  64. BALL MILL (BATCH)
  65. FLOTH FLOATATION CELL(3)
  66. CENTRIFUGAL CONCENTRATE
  67. PRESSURE FILTER
  68. PULP DENSITY BALANCE
  69. AVERY BEAM BALANCE
  70. POUND (LB) BALANCE
  71. SIEVE SHAKER - (3)
  72. COMPRESSOR
  73. JAW CRUSHER (2)
  74. ROLL CRUSHER
  75. PULVERIZER
  76. DOUBLE DEEK VIBRATE SCREEN
  77. GRINDING MACHINE
  78. DRIL MACHINE
  79. UNDER GROUND FAN (2)

Services offered by GST

The GST has a broad knowledgeable pool of experts on earth sciences. GST is well known as a source of excellent geoscientific databases of the country, for its reliability, confidentiality, strong business morals and solid project management. The GST has a wide experience of operations in Tanzania and offers services to customers on a commercial basis.

GST expert services include broad geoscientific and technical know-how sought by individual clients, exploration and mining companies, government and institutions. The expert services focus on servicing the mineral sector and other sectors of the economy such as construction industry, land use planning, water resources and environmental studies.

GST technical services comprises of chemical analyses, mineral processing, micro-petrography, geological, geophysical and geochemical services. In all business operations GST apply modern management tools as well as the Internal Quality System.

As a consultancy institution, the main goal is to help GST’s partners resolve their problems related to mineral exploration, mining and the sustainable use of geological raw materials, environment and land-use management

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