| Abbreviation | Definition |
|---|---|
| CAD | Computer Aided Drilling |
| CAGS | Canadian Absolute Gravity Station |
| CANDU | CANadian Natural Deuterium Uranium |
| CBM | Coal Bed Methane |
| CC | Cane Creek |
| CCB | Compacted Clay Barrier |
| CCD | Carbonate Compensation Depth |
| CCGS | Corpus Christi Geological Society |
| CCMEO | Canada Centre for Mapping and Earth Observation |
| CCOG | Canadian Council on Geomatics |
| CCT | Critical Crevice Temperature |
| CDEFG | Collaborative Database Effort For Geology |
| CENC | China Earthquake Networks Center |
| CERA | Cambridge Energy Research Associates |
| CERESIS | Regional Center for Seismology for South America |
| CF | Cape Fear |
| CFA | Continuous Flight Auger |
| CFMS | California Federation of Mineralogical Societies |
| CGL | Central Gem Laboratory |
| CGM | Central Gulf of Mexico |