Appraisals/evaluations - 18
Coal - 56
Cold regions/permafrost - 3
Computer applications - 11
Construction materials - 26
Economic geology - 288
Engineering geology - 162
Environmental geology - 777
Enviro impact assmnt - 11
Enviro site assmnt - 152
Exploration - 282
Field geology - 46
Forensic geology - 4
General geology/Earth sci - 58
Geochemistry - 43
Geologic modeling - 26
Geomorphology - 21
Geophysics - 52

Geostatistics - 8
Geotechnical - 44
Geothermal - 2
Hazardous waste - 47
Hydrogeology - 709
Industrial minerals - 26
Investment analysis - 4
Land reclamation - 2
Management - 47
Marine geology - 14
Mathematical geology - 2
Metallic minerals - 13
Micropaleontology - 1
Mineralogy - 8
Mining geology - 127
Natural gas - 15
Operations/developmnt - 3
Paleontology - 12
Palynology - 0

Petrography/petrology - 12
Petroleum - 122
Phosphates - 4
Planetology - 4
Regional geology - 4
Remote sensing - 14
Sedimentology - 17
Seismology - 1
Soil science - 4
Stratigraphy - 11
Structural geology - 17
Tectonics - 1
Uranium - 10
Volcanology - 7
Waste disposal - 10
Water resources - 36