| Code |
Method Type |
IAGA7 |
URL |
Description |
|
| GM-ALPHA |
Geochronology Method |
|
|
Age determination by using alpha counting. |
| GM-ARAR |
Geochronology Method |
|
|
40Ar/39Ar age determination. |
| GM-ARAR-AP |
Geochronology Method |
|
|
40Ar/39Ar age determination: Age plateau. |
| GM-ARAR-II |
Geochronology Method |
|
|
40Ar/39Ar age determination: Inverse isochron. |
| GM-ARAR-IS |
Geochronology Method |
|
|
40Ar/39Ar age determination: Insitu spot age using laser system. |
| GM-ARAR-NI |
Geochronology Method |
|
|
40Ar/39Ar age determination: Normal isochron. |
| GM-ARAR-SC |
Geochronology Method |
|
|
40Ar/39Ar age determination: Single crystal age. |
| GM-ARAR-SC-10 |
Geochronology Method |
|
|
40Ar/39Ar age determination: Average age based on less than 10 single crystal ages. |
| GM-ARAR-SC-1050 |
Geochronology Method |
|
|
40Ar/39Ar age determination: Average age based on 10 to 50 single crystal ages. |
| GM-ARAR-SC-50 |
Geochronology Method |
|
|
40Ar/39Ar age determination: Average age based on more than 50 single crystal ages. |
| GM-ARAR-TF |
Geochronology Method |
|
|
40Ar/39Ar age determination: Total fusion or recombined age. |
| GM-C14 |
Geochronology Method |
|
|
Radiocarbon age determination. |
| GM-C14-AMS |
Geochronology Method |
|
|
Radiocarbon age determination: AMS. |
| GM-C14-BETA |
Geochronology Method |
|
|
Radiocarbon age determination: Beta decay counting. |
| GM-C14-CAL |
Geochronology Method |
|
|
Radiocarbon age determination: Calibrated. |
| GM-CC |
Geochronology Method |
|
|
Correlation chronology. |
| GM-CC-ARCH |
Geochronology Method |
|
|
Correlation chronology: Archeology. |
| GM-CC-ARM |
Geochronology Method |
|
|
Correlation chronology: ARM. |
| GM-CC-ASTRO |
Geochronology Method |
|
|
Correlation chronology: Astronomical. |
| GM-CC-CACO3 |
Geochronology Method |
|
|
Correlation chronology: Calcium carbonate. |
| GM-CC-COLOR |
Geochronology Method |
|
|
Correlation chronology: Color or reflectance. |
| GM-CC-GRAPE |
Geochronology Method |
|
|
Correlation chronology: Gamma Ray Polarimeter Experiment. |
| GM-CC-IRM |
Geochronology Method |
|
|
Correlation chronology: IRM. |
| GM-CC-ISO |
Geochronology Method |
|
|
Correlation chronology: Stable isotopes. |
| GM-CC-REL |
Geochronology Method |
|
|
Correlation chronology: Relative chronology other than stratigraphic successions. Relative dating by cross-cutting relationships in the field. This method code should not be used instead of GM-STRAT if dealing with a stratigraphic succession.. |
| GM-CC-S |
Geochronology Method |
|
|
Correlation chronology: Ratio of the low field and saturation IRM. |
| GM-CC-STRAT |
Geochronology Method |
|
|
Correlation chronology: Stratigraphic succession. |
| GM-CC-TECT |
Geochronology Method |
|
|
Correlation chronology: Tectites and microtectites. |
| GM-CC-TEPH |
Geochronology Method |
|
|
Correlation chronology: Tephrochronology. |
| GM-CC-X |
Geochronology Method |
|
|
Correlation chronology: Susceptibility. |
| GM-CHEM |
Geochronology Method |
|
|
Chemical chronology. |
| GM-CHEM-AAR |
Geochronology Method |
|
|
Chemical chronology: Amino acid racemization. |
| GM-CHEM-OH |
Geochronology Method |
|
|
Chemical chronology: Obsidian hydration. |
| GM-CHEM-SC |
Geochronology Method |
|
|
Chemical chronology: Stoan coatings CaCO3. |
| GM-CHEM-TH |
Geochronology Method |
|
|
Chemical chronology: Tephra hydration. |
| GM-COSMO |
Geochronology Method |
|
|
Cosmogenic age determination. |
| GM-COSMO-AL26 |
Geochronology Method |
|
|
Cosmogenic age determination: 26Al. |
| GM-COSMO-AR39 |
Geochronology Method |
|
|
Cosmogenic age determination: 39Ar. |
| GM-COSMO-BE10 |
Geochronology Method |
|
|
Cosmogenic age determination: 10Be. |
| GM-COSMO-C14 |
Geochronology Method |
|
|
Cosmogenic age determination: 14C. |
| GM-COSMO-CL36 |
Geochronology Method |
|
|
Cosmogenic age determination: 36Cl. |
| GM-COSMO-HE3 |
Geochronology Method |
|
|
Cosmogenic age determination: 3He. |
| GM-COSMO-KR81 |
Geochronology Method |
|
|
Cosmogenic age determination: 81Kr. |
| GM-COSMO-NE21 |
Geochronology Method |
|
|
Cosmogenic age determination: 21Ne. |
| GM-COSMO-NI59 |
Geochronology Method |
|
|
Cosmogenic age determination: 59Ni. |
| GM-COSMO-SI32 |
Geochronology Method |
|
|
Cosmogenic age determination: 32Si. |
| GM-DENDRO |
Geochronology Method |
|
|
Dendrochronology. |
| GM-ESR |
Geochronology Method |
|
|
Electron Spin Resonance. |
| GM-FOSSIL |
Geochronology Method |
|
|
Age determined from fossil record. |
| GM-FT |
Geochronology Method |
|
|
Fission track age determination. |
| GM-HIST |
Geochronology Method |
|
|
Historically recorded geological event. |
| GM-INT |
Geochronology Method |
|
|
Age determination through interpolation between at least two geological units of known age. |
| GM-INT-L |
Geochronology Method |
|
|
Age determination through interpolation between at least two geological units of known age: Linear. |
| GM-INT-S |
Geochronology Method |
|
|
Age determination through interpolation between at least two geological units of known age: Cubic spline. |
| GM-ISO |
Geochronology Method |
|
|
Age determined by isotopic dating, but no further details available. |
| GM-KAR |
Geochronology Method |
|
|
40K-40Ar age determination. |
| GM-KAR-C |
Geochronology Method |
|
|
40K-40Ar age determination: Cassignol method. |
| GM-KAR-I |
Geochronology Method |
|
|
40K-40Ar age determination: Isochron. |
| GM-KAR-MA |
Geochronology Method |
|
|
40K-40Ar age determination: Model age. |
| GM-KCA |
Geochronology Method |
|
|
40K-40Ca age determination. |
| GM-KCA-I |
Geochronology Method |
|
|
40K-40Ca age determination: Isochron. |
| GM-KCA-MA |
Geochronology Method |
|
|
40K-40Ca age determination: Model age. |
| GM-LABA |
Geochronology Method |
|
|
138La-138Ba age determination. |
| GM-LABA-I |
Geochronology Method |
|
|
138La-138Ba age determination: Isochron. |
| GM-LABA-MA |
Geochronology Method |
|
|
138La-138Ba age determination: Model age. |
| GM-LACE |
Geochronology Method |
|
|
138La-138Ce age determination. |
| GM-LACE-I |
Geochronology Method |
|
|
138La-138Ce age determination: Isochron. |
| GM-LACE-MA |
Geochronology Method |
|
|
138La-138Ce age determination: Model age. |
| GM-LICHE |
Geochronology Method |
|
|
Lichenometry. |
| GM-LUHF |
Geochronology Method |
|
|
176Lu-176Hf age determination. |
| GM-LUHF-I |
Geochronology Method |
|
|
176Lu-176Hf age determination: Isochron. |
| GM-LUHF-MA |
Geochronology Method |
|
|
176Lu-176Hf age determination: Model age. |
| GM-LUM |
Geochronology Method |
|
|
Luminescence. |
| GM-LUM-IRS |
Geochronology Method |
|
|
Luminescence: Infrared stimulated luminescence. |
| GM-LUM-OS |
Geochronology Method |
|
|
Luminescence: Optically stimulated luminescence. |
| GM-LUM-TH |
Geochronology Method |
|
|
Luminescence: Thermoluminescence. |
| GM-MOD |
Geochronology Method |
|
|
Model curve fit to available age dates. |
| GM-MOD-L |
Geochronology Method |
|
|
Model curve fit to available age dates: Linear. |
| GM-MOD-S |
Geochronology Method |
|
|
Model curve fit to available age dates: Cubic spline. |
| GM-MORPH |
Geochronology Method |
|
|
Geomorphic chronology. |
| GM-MORPH-DEF |
Geochronology Method |
|
|
Geomorphic chronology: Rate of deformation. |
| GM-MORPH-DEP |
Geochronology Method |
|
|
Geomorphic chronology: Rate of deposition. |
| GM-MORPH-POS |
Geochronology Method |
|
|
Geomorphic chronology: Geomorphology position. |
| GM-MORPH-WEATH |
Geochronology Method |
|
|
Geomorphic chronology: Rock and mineral weathering. |
| GM-NO |
Geochronology Method |
|
|
Unknown geochronology method. |
| GM-O18 |
Geochronology Method |
|
|
Oxygen isotope dating. |
| GM-PBPB |
Geochronology Method |
|
|
207Pb-206Pb age determination. |
| GM-PBPB-C |
Geochronology Method |
|
|
207Pb-206Pb age determination: Common Pb. |
| GM-PBPB-I |
Geochronology Method |
|
|
207Pb-206Pb age determination: Isochron. |
| GM-PLEO |
Geochronology Method |
|
|
Pleochroic haloes. |
| GM-PMAG-ANOM |
Geochronology Method |
|
|
Paleomagnetic age determination: Magnetic anomaly identification. |
| GM-PMAG-APWP |
Geochronology Method |
|
|
Paleomagnetic age determination: Comparing paleomagnetic data to APWP. |
| GM-PMAG-ARCH |
Geochronology Method |
|
|
Paleomagnetic age determination: Archeomagnetism. |
| GM-PMAG-DIR |
Geochronology Method |
|
|
Paleomagnetic age determination: Directions. |
| GM-PMAG-POL |
Geochronology Method |
|
|
Paleomagnetic age determination: Polarities. |
| GM-PMAG-REGSV |
Geochronology Method |
|
|
Paleomagnetic age determination: Correlation to a regional secular variation curve. |
| GM-PMAG-RPI |
Geochronology Method |
|
|
Paleomagnetic age determination: Relative paleointensity. |
| GM-PMAG-VEC |
Geochronology Method |
|
|
Paleomagnetic age determination: Full vector. |
| GM-RATH |
Geochronology Method |
|
|
226Ra-230Th age determination. |
| GM-RBSR |
Geochronology Method |
|
|
87Rb-87Sr age determination. |
| GM-RBSR-I |
Geochronology Method |
|
|
87Rb-87Sr age determination: Isochron. |
| GM-RBSR-MA |
Geochronology Method |
|
|
87Rb-87Sr age determination: Model age. |
| GM-REOS |
Geochronology Method |
|
|
187Re-187Os age determination. |
| GM-REOS-I |
Geochronology Method |
|
|
187Re-187Os age determination: Isochron. |
| GM-REOS-MA |
Geochronology Method |
|
|
187Re-187Os age determination: Model age. |
| GM-REOS-PT |
Geochronology Method |
|
|
187Re-187Os age determination: Pt normalization of 186Os. |
| GM-SCLERO |
Geochronology Method |
|
|
Screlochronology. |
| GM-SHRIMP |
Geochronology Method |
|
|
SHRIMP age dating. |
| GM-SMND |
Geochronology Method |
|
|
147Sm-143Nd age determination. |
| GM-SMND-I |
Geochronology Method |
|
|
147Sm-143Nd age determination: Isochron. |
| GM-SMND-MA |
Geochronology Method |
|
|
147Sm-143Nd age determination: Model age. |
| GM-THPB |
Geochronology Method |
|
|
232Th-208Pb age determination. |
| GM-THPB-I |
Geochronology Method |
|
|
232Th-208Pb age determination: Isochron. |
| GM-THPB-MA |
Geochronology Method |
|
|
232Th-208Pb age determination: Model age. |
| GM-UPA |
Geochronology Method |
|
|
235U-231Pa age determination. |
| GM-UPB |
Geochronology Method |
|
|
U-Pb age determination. |
| GM-UPB-CC-T0 |
Geochronology Method |
|
|
U-Pb age determination: Concordia diagram age, upper intersection. |
| GM-UPB-CC-T1 |
Geochronology Method |
|
|
U-Pb age determination: Concordia diagram age, lower intersection. |
| GM-UPB-I-206 |
Geochronology Method |
|
|
U-Pb age determination: 238U-206Pb isochron. |
| GM-UPB-I-207 |
Geochronology Method |
|
|
U-Pb age determination: 235U-207Pb isochron. |
| GM-UPB-MA-206 |
Geochronology Method |
|
|
U-Pb age determination: 238U-206Pb model age. |
| GM-UPB-MA-207 |
Geochronology Method |
|
|
U-Pb age determination: 235U-207Pb model age. |
| GM-USD |
Geochronology Method |
|
|
Uranium series disequilibrium age determination. |
| GM-USD-PA231-TH230 |
Geochronology Method |
|
|
Uranium series disequilibrium age determination: 231Pa-230Th. |
| GM-USD-PA231-U235 |
Geochronology Method |
|
|
Uranium series disequilibrium age determination: 231Pa-235U. |
| GM-USD-PB210 |
Geochronology Method |
|
|
Uranium series disequilibrium age determination: 210Pb. |
| GM-USD-RA226-TH230 |
Geochronology Method |
|
|
Uranium series disequilibrium age determination: 226Ra-230Th. |
| GM-USD-RA228-TH232 |
Geochronology Method |
|
|
Uranium series disequilibrium age determination: 228Ra-232Th. |
| GM-USD-TH228-TH232 |
Geochronology Method |
|
|
Uranium series disequilibrium age determination: 228Th-232Th. |
| GM-USD-TH230 |
Geochronology Method |
|
|
Uranium series disequilibrium age determination: 230Th. Ionium dating in deep sea sediments. |
| GM-USD-TH230-TH232 |
Geochronology Method |
|
|
Uranium series disequilibrium age determination: 230Th-232Th. |
| GM-USD-TH230-U234 |
Geochronology Method |
|
|
Uranium series disequilibrium age determination: 230Th-234U. |
| GM-USD-TH230-U238 |
Geochronology Method |
|
|
Uranium series disequilibrium age determination: 230Th-238U. |
| GM-USD-U234-U238 |
Geochronology Method |
|
|
Uranium series disequilibrium age determination: 234U-238U. |
| GM-UTH |
Geochronology Method |
|
|
238U-230Th age determination. |
| GM-UTHHE |
Geochronology Method |
|
|
U-Th-He age determination. |
| GM-UTHPB |
Geochronology Method |
|
|
U-Th-Pb age determination. |
| GM-UTHPB-CC-T0 |
Geochronology Method |
|
|
U-Th-Pb age determination: Concordia diagram intersection age, upper intercept. |
| GM-UTHPB-CC-T1 |
Geochronology Method |
|
|
U-Th-Pb age determination: Concordia diagram intersection age, lower intercept. |
| GM-VARVE |
Geochronology Method |
|
|
Age determined by varve counting. |
|
