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South Africa
96%
Vitrinite
57%
Inertinite
56%
Macerals
48%
Coal Sample
42%
South African Coal
31%
Rare Earth Elements
31%
Coal Seam
24%
Organic Petrology
22%
Coal Petrography
20%
Coal Ash
18%
Mineral Matter
18%
Combustion
18%
Inertinite Maceral
17%
Vol%
17%
Coal Type
16%
Microlithotypes
16%
South African
16%
Karoo Basin
16%
Raman Spectroscopy
16%
Waterberg
16%
Coal Properties
15%
Structural Change
15%
Depositional Environment
15%
Pyrite
15%
CO2 Adsorption Capacity
15%
Organic Matter
14%
Modes of Occurrence
14%
Polyaspartamide
14%
Petrography
13%
Coal Quality
13%
Semifusinite
13%
X-ray
13%
Mineralogy
13%
Witbank Coalfield
12%
Diffraction
12%
Soutpansberg
12%
Silica
12%
CO2 Capture
12%
Petrographic Composition
12%
Trace Elements
12%
Highveld Coal
12%
Liptinite
12%
Petrology
12%
Coal Rank
11%
Total Organic Carbon
11%
Bituminous Coal
11%
Ash Samples
10%
Lump Coal
10%
Gasifier
10%
Earth and Planetary Sciences
Republic of South Africa
100%
Maceral
78%
Petrology
62%
Vitrinite
53%
Rare Earth Element
34%
Permian
29%
Carbon Dioxide
27%
Coal Seam
24%
Organic Matter
22%
Anthracite
17%
Reflectance
16%
Iron Ore
15%
Borehole
15%
X Ray Diffraction
14%
Mineralogy
14%
Trace Element
13%
Kaolinite
13%
Depositional Environment
13%
Raman Spectrometry
12%
Raman Spectroscopy
12%
Vitrinite Reflectance
11%
Bituminous Coal
11%
Geochemistry
11%
Organic Carbon
11%
Dolomite
10%
Coal Rank
10%
Hydrocarbon
10%
Black Shale
10%
Chemical Element
9%
Thermal Maturity
9%
Botswana
9%
Pyrolysis
8%
China
8%
Beneficiation
8%
Nuclear Magnetic Resonance
8%
Shale Gas
8%
Coalification
7%
United States of America
7%
Coal Mine
7%
Palynology
7%
Mongolia
7%
Comparative Study
7%
Geology
7%
Inductively Coupled Plasma Mass Spectrometry
6%
X-Ray Fluorescence Spectroscopy
6%
Silicon Dioxide
6%
Porosity
6%
Structural Change
6%
Scanning Electron Microscopy
6%
Neutron Activation Analysis
6%