AMS Radiocarbon Dating

PaleoResearch Institute has been working with Dr. Thomas W. Stafford Jr. to develop our methods for AMS Radiocarbon Dating. We believe we are providing the highest quality AMS dating possible. In the following list note the very small sigmas and the small final mass dated.

Our regular price for AMS radiocarbon dating is US $595.

Standard turn-around is 30 business days. Call us at 303.277.9848 for rush service and price.

If you are considering a "Humate Date" because you have no visible charcoal- Call us, we have another choice!

Sample Submission form is here. Right click the link and select "Save Target as" to save locally.

In the table below, FM represents Fraction Modern and is used for radiocarbon determinations post-atmospheric atomic bomb (post 1950).

Sample # base date sigma material mass
PRI-05-30-8 2515 15 Alnus charcoal 0.0042
PRI-05-30-9 2535 15 Alnus charcoal 0.006
PRI-05-39-A27 37920 840 Humate 0.0121
PRI-05-39-A32 8920 20 Humate 0.0423
PRI-05-39-A33 1325 15 Humate 0.0233
PRI-05-39-A34 1510 15 Humate 0.0362
PRI-05-39-A51 3160 15 Humate 0.0052
PRI-05-46-1 905 20 Sacrobatus charcoal 0.0117
PRI-05-30-4 155 15 Salicaceae charcoal 0.0064
PRI-04-99-30 1590 15 Sarcobatus charcoal 0.0041
PRI-05-48-SR1-4 1175 30 cf. Rosaceae Charcoal 0.0037
PRI-05-39-A31 3090 30 Humate 0.0043
PRI-05-48-IC1-2 1015 30 Pinus charcoal .25mg C
PRI-05-48-CC3-1 430 30 Quercus charcoal 0.0071
PRI-05-48-CC1-2 285 30 Salicaceae charcoal 0.0013
PRI-05-48-TC1-4 115 30 Salicaceae charcoal 0.0145
PRI-05-69-UR2-2PIX 510 15 Pine cone scale charcoal 0.4mgC
PRI-05-64-WRR1-2 195 15 Pinus charcoal 0.028
PRI-05-64-YR1-1 555 15 Pinus charcoal 0.0014
PRI-05-69-UR4-2 14860 35 Salicaceae charcoal 0.0016
PRI-05-66-77 1240 15 Zea mays cob 0.0058
PRI-05-66-74 1980 20 Artemisia charcoal 0.0044
PRI-05-87-210 6405 20 Betula charcoal 0.0035
PRI-05-77-P2-C1 4425 20 Conifer charcoal 0.0027
PRI-05-77-P8-C2.3 8920 25 Conifer charcoal 0.0045
PRI-05-66-561 1865 25 Juniperus charcoal 0.005
PRI-05-77-P4-C3 4435 20 Pinus charcoal 0.0032
PRI-05-77-P7-C1.5 7665 20 Pinus charcoal 0.0044
PRI-05-33-1 590 30 Quercus charcoal 0.004
PRI-06-01-5 180 20 Amelancheir charcoal 0.0016
PRI-05-77-P2-C2 3975 25 Conifer charcoal 0.0009
PRI-05-77-P4-C1.2 1580 15 Pinus charcoal 0.0022
PRI-05-77-P8-C1.2 1890 25 Pinus charcoal 0.0016
PRI-05-95-TH1-1 510 15 Pseudotsuga charcoal 0.0031
PRI-05-95-TH2-4 580 20 Pseudotsuga charcoal 0.0024
PRI-05-94-WR-1 220 20 Salicaceae charcoal 0.0023
PRI-04-87-417-425 24970 370 SOM 0.0053
PRI-05-95-SKO1-10 145 15 Thuja plicata wood 0.0032
PRI-05-95-SKO1-11 400 20 Thuja plicata wood 0.0026
PRI-04-98-201-206 6355 20 Uncharred organics 0.0074
PRI-04-98-424-430 7690 35 Uncharred organics .34mgC
PRI-04-98-498-503 17200 70 Uncharred organics 0.0074
PRI-05-19-101 6275 20 microcharcoal 0.0007
PRI-04-87-501-516 22090 90 SOM 0.0069
PRI-04-87-577-581 30630 210 SOM 0.0037
PRI-06-31-CCI1-6 655 20 cf. Alnus charcoal 0.0066
PRI-06-36-CWP1-5 145 15 Salicaceae charcoal 0.0049
PRI-06-12-1-05 2245 15 Charcoal 10.0mg
PRI-06-54-TW1-1 905 20 Pinus charcoal 0.0014
PRI-06-36-BR1-1 1395 15 Charcoal 3.5mg
PRI-06-63-CW-1-2 730 15 Charcoal 1.1 mg
PRI-06-63-FC2-1 3830 15 Charcoal 4.0 mg
PRI-06-63-PW1-1 375 15 Charcoal 0.1 mg
PRI-06-63-SC3-1 955 15 Charcoal 6.1mg
PRI-06-68-SKO5-6 405 20 Acer charcoal 0.006
PRI-06-63-CC3-1 170 20 Asteraceae charcoal 0.0028
PRI-06-80-TC1-2 8980 25 cf. Salicaceae charcoal 0.0002
PRI-06-68-SKO2-3 2220 20 Conifer charcoal 0.0047
PRI-06-68-SKO4-2 810 20 Peat 0.0088
PRI-06-68-SKO4-3 800 20 Peat 0.0052
PRI-06-63-CW2-1 150 20 Pinus charcoal 0.0059
PRI-06-68-SKO2-1 620 20 Pseudotsuga charcoal 0.0078
PRI-06-68-SKO3-2 490 20 Pseudotsuga charcoal 0.0081
PRI-06-63-CC2-1 830 20 Quercus charcoal 0.0038
PRI-06-82-88 5515 20 Soil microcharcoal 0.0015
PRI-06-82-95 8000 30 Soil microcharcoal 0.0002
PRI-06-80-GR2-5SA 1015 15 cf Salicaceae charcoal 0.0001
PRI-06-80-GR1-3U 70 15 Charcoal unidentified 0.0063
PRI-06-95-C-8 10280 25 Charred herbaceous stem 0.0036
PRI-06-80-GR2-4 10025 25 Microcharcoal 0.003
PRI-06-80-CC1-6PI 740 15 Pinus charcoal 0.0004
PRI-06-80-CO1-1PI 1895 20 Pinus charcoal 0.0037
PRI-06-80-TC1-1PI 7955 20 Pinus charcoal 0.0024
PRI-06-80-GR1-5RH 190 15 Rhus charcoal 0.0036
PRI-06-80-GR3-1RO 205 15 Rosaceae charcoal 0.0024
PRI-06-80-CC1-7SA 170 20 Salicaceae charcoal 0.0003
PRI-06-80-CE1-2SA 1215 15 Salicaceae charcoal 0.0018
PRI-06-80-CE1-5SA 1140 20 Salicaceae charcoal 0.0057
PRI-06-80-CO1-3SA 640 15 Salicaceae charcoal 0.0001
PRI-06-80-CR2-4SA 285 15 Salicaceae charcoal 0.0001
PRI-06-80-CR2-5SA 130 15 Salicaceae charcoal 0.0043
PRI-06-80-GR4-1SA 135 15 Salicaceae charcoal 0.0001
PRI-06-80-TC1-7PI 9205 20 Vitrified Pinus charcoal 0.0067
PRI-06-68-SKO7-2 930 15 Acer charcoal 0.0029
PRI-06-68-SKO-7-4 2020 15 Bark - charred 0.0003
PRI-06-86-05-1510R 3560 20 Ceramic residue 0.0039
PRI-06-80-ER1-3CO 630 15 Conifer charcoal 0.0029
PRI-07-02-2B 375 20 Juglans charcoal 0.003
PRI-06-80-GR2-5 12650 30 Microcharcoal 0.0017
PRI-06-78-KO6-C1 8935 20 Peat 0.01
PRI-06-78-KO6-C2 5930 20 Peat 0.0087
PRI-07-01-ECC1 1295 20 Pinus charcoal 0.008
PRI-07-06-1 670 15 Quercus charcoal 0.0052
PRI-06-80-LF1-2RO 675 20 Rosaceae charcoal 0.0004
PRI-06-80-CR1-3/4SA 850 15 Salicaceae charcoal 0.0001
PRI-06-80-CU1-1SA 1710 15 Salicaceae charcoal 0.0015
PRI-06-80-LF1-6SA 1125 15 Salicaceae charcoal 0.001
PRI-06-80-SC1-1/2SA 205 15 Salicaceae charcoal 0.0018
PRI-06-80-SC2-8SA 485 15 Salicaceae charcoal 0.0035
PRI-07-02-1 345 15 Zea mays cupule 0.0038
PRI-05-20-242 2465 15 Aesculus charcoal 0.0091
PRI-05-20-325 3025 15 Carya nutshell 0.0034
PRI-07-24-206 1670 15 Ceramic residue 0.004
PRI-07-24-433 2180 50 Ceramic residue 0.0039
PRI-06-89-107-110 10685 30 Humate 0.0102
PRI-06-89-123-125 14365 45 Humate 0.0015
PRI-06-89-167 15515 50 Humate 0.0026
PRI-06-89-187-192 34420 490 Humate 0.0035
PRI-06-89-210 33510 440 Humate 0.0049
PRI-06-89-65-68 4900 20 Humate 0.007
PRI-06-89-90-92 7240 25 Humate 0.0092
PRI-06-89-96-98 7775 20 Humate 0.0052
PRI-07-19-GVC1-2PI 1305 15 Pinus charcoal 0.0029
PRI-07-19-GVC1-1PS 195 15 Pseudotsuga charcoal 0.0032
PRI-07-33-CO5E002.001 2305 15 Acer glabrum charcoal
PRI-07-31-1CH 1200 20 Acer spp. Charcoal
PRI-05-86-174 315 15 Atriplex charcoal
PRI-06-89-180-183 41870 780 Charcoal
PRI-05-86-78 2495 20 Ephedra charcoal
PRI-05-86-831 200 15 Rhus charcoal
PRI-05-86-386 230 15 Salicaceae charcoal
PRI-05-86-992 245 15 Salicaceae charcoal
PRI-07-49-48 1595 35 Amelancheir charcoal 0.0036
PRI-07-47-14 1965 35 Atriplex charcoal 0.0045
PRI-07-44-163 75 35 Betula twig charcoal 0.0036
PRI-06-89-18-22 2110 35 Humate 0.0047
PRI-07-48-1 1160 35 Pinus charcoal 0.0019
PRI-07-48-2 1540 35 Pinus charcoal 0.0024
PRI-07-49-20 1675 35 Populus charcoal 0.0044
PRI-07-49-24 1735 35 Populus charcoal 0.0029
PRI-07-49-45 1680 35 Populus charcoal 0.0031
PRI-07-45-2 2855 35 Prosopis and Unid charcoal 0.0044
PRI-07-45-1 1785 35 Prosopis charcoal 0.0066
PRI-07-46-15 2865 35 Prosopis charcoal 0.0037
PRI-07-45-139 5425 35 Sediment microcharcoal 0.0026
PRI-07-46-1 3490 35 Sediment microcharcoal 0.0042
PRI-07-46-3 3825 35 Sediment microcharcoal 0.0048
PRI-07-40-2973-1-2 1260 20 Acer negundo Charcoal 0.0015
PRI-07-57-40 .36mgC 9615 45 Alnus charcoal 0.0005
PRI-07-56-1collagen 1.0491FM 0.0025 Bone collagen 0.0037
PRI-07-56-2 collagen 1.1430FM 0.0028 Ivory Collagen 0.0029
PRI-07-40-2977-1-1 865 20 Populus charcoal 0.0019
PRI-07-40-2977-1-2 890 20 Populus charcoal 0.0011
PRI-07-40-2977-2-1 1070 20 Populus charcoal 0.0009
PRI-07-57-35 9430 90 Soil microcharcoal 0.0002
PRI-07-58-283-3101 965 20 Zea mays Cob Charcoal 0.0015
PRI-07-58-433-8266 960 20 Zea mays Cob Charcoal 0.0014
PRI-07-58-433-9688 1005 20 Zea mays Cob Charcoal 0.001
PRI-07-58-356-2814 990 20 Zea mays Cob Charcoal 0.0011
PRI-07-58-433-9646 990 20 Zea mays Cob Charcoal 0.0015
PRI-07-58-509-3236 945 20 Zea mays Cob Charcoal 0.0015
PRI-07-58-395-4712 970 20 Zea mays Cob Charcoal 0.0012
PRI-07-58-433-7825 985 20 Zea mays Cob Charcoal 0.0012
PRI-07-64-6720-19 3735 20 Prosopis charcoal 0.0024
PRI-07-64-6720-32 1560 20 Prosopis charcoal 0.0024
PRI-07-64-6720-15 3700 25 Prosopis charcoal 0.0014
PRI-07-64-6773-2 3710 20 Prosopis charcoal 0.0019
PRI-07-64-7891-1 1770 20 Prosopis charcoal 0.0033
PRI-07-65-1 725 20 Prosopis charcoal 0.002
PRI-07-65-2 2740 20 Prosopis charcoal 0.0021
PRI-07-64-6773-15 1510 20 Soil microcharcoal 0.0021
PRI-07-20-5568-2006-01 6305 25 Unidentified hardwood charcoal 0.0021
PRI-07-58-433-9535 940 25 Zea mays Cob Charcoal 0.0027
PRI-07-87-1656-U2-3 3530 15 Pinus charcoal 0.006
PRI-02-81-SR1-1CO 115 15 Conifer charcoal 0.0022
PRI-07-73-IG0-2CO 950 15 Conifer charcoal 0.0026
PRI-07-74-SK1-3AC 825 20 Arctostaphylos charcoal 0.0014
PRI-07-74-SK1-5AE 1145 15 Acer charcoal 0.0017
PRI-07-81-SC1-1TH 160 15 Thuja charcoal 0.0020
PRI-07-95-1 180 15 Pinus charcoal 0.0020
PRI-07-95-2 8760 20 Pinus charcoal 0.0001
PRI-07-96-1 1.1176 FM 0.0017 Paper 0.0045
PRI-07-104-302-4 2510 15 charred walnut shell 0.0018
PRI-07-104-174-1 1215 15 charred squash rind 0.0001
PRI-07-86-G1.1-C3 680 20 Unid. Hardwood Charcoal 0.0001
PRI-07-86-G1.2-C1 1080 20 Juglandaceae Charcoal 0.0011
PRI-07-86-G1.2-C3 735 20 Unid. Hardwood Charcoal 0.0017
PRI-07-86-G1.2-C31 640 20 Juglandaceae Charcoal 0.0016
PRI-07-86-G1.2-C32 725 20 Unid. Hardwood Charcoal 0.0017
PRI-07-86-G1.2-C33 170 20 Meliaceae Charcoal 0.0016
PRI-07-86-G1.2-C34 180 20 Juglandaceae Charcoal 0.0022
PRI-07-86-G1.2-C35 755 20 Unid. Hardwood Charcoal 0.0001
PRI-07-86-G1.2-C36 140 20 Meliaceae Charcoal 0.0020
PRI-07-86-G1.6-1 1220 20 Fabaceae Charcoal 0.0020
PRI-07-86-G1.6-C2 1215 20 Fabaceae Charcoal 0.0032
PRI-07-86-GP1.2-C1 680 20 Unid. Hardwood Charcoal 0.0028
PRI-07-86-RB-C1 1260 20 Unid. Charred Fruit 0.0010
PRI-07-29-12 1670 15 Quercus charcoal 0.0023
PRI-07-82-T3-1  8775 20 microcharcoal 0.0001
PRI-07-82-T3-2 6555 25 microcharcoal 0.0006
PRI-07-82-T3-5 5200 20 microcharcoal 0.0002
PRI-07-84-1 220 15 microcharcoal 0.0018
PRI-07-84-2M 1720 15 Monocot charcoal 0.0028
PRI-07-88-401 240 15 Residue from ceramic 0.0024
PRI-07-98-AS 940 15 Arctostaphylos Charcoal 0.0019
PRI-07-98-AH 810 15 Picea charcoal 0.0020
PRI-07-101-1 4485 15 Artemisia charcoal 0.0018
PRI-07-82-T3-5T 4715 15 Conifer charcoal 0.0019
PRI-07-104-C48 3100 25 UNIDENTIFIED Charcoal 0.0002
PRI-07-104--P27 5130 90 UNIDENTIFIED Charcoal 0.0001
PRI-07-104-C44 3605 20 UNIDENTIFIED Charcoal 0.0001
PRI-07-86-L1.3W-C13 1480 80 UNIDENTIFIED Charcoal 0.0001
PRI-07-86-PMT1-C1 1575 15 UNIDENTIFIED Hardwood 0.0022
PRI-07-86-L1-C4 1585 15 UNIDENTIFIED Hardwood 0.0005
PRI-07-86-L1.3W-C14 1265 15 cf. Asteraceae 0.0006
PRI-07-86-L1.3W-C13-Bulk 2430 15 UNIDENTIFIED Charcoal 0.0023
PRI-07-86-L1-C1 1.081 FM 0.0057 UNIDENTIFIED Charcoal 0.0001
PRI-07-86-PMT1-C3 1450 20 cf. Asteraceae 0.0001
PRI-07-86-PMT1-C5 1485 15 UNIDENTIFIED Hardwood 0.0022
PRI-07-86-L1-C2 400 15 UNIDENTIFIED Hardwood 0.0014
PRI-07-115-1PI 830 15 Picea single needle 0.001
PRI-07-118-1 210 15 Unid hardwood Bear mask 0.0034
PRI-07-86-PM2.2-C3 2165 25 UNIDENTIFIED Hardwood 0.0001
PRI-07-86-PM2.2-C 1175 25 UNIDENTIFIED Hardwood 0.0001
PRI-07-88-L2-C8 1325 25 UNIDENTIFIED Charcoal 0.0001
PRI-07-86-PM2.5-C1 225 25 Aspidosperma-type charcoal 0.0025
PRI-07-86-L2-C9 2980 25 cf. Fabaceae Charcoal 0.0024
PRI-07-86-PM2-C5 1.0382 FM 0.0031 Meliaceae Charcoal 0.0022
PRI-07-86-L2.4-C16 725 25 Palmae Charcoal 0.0020
PRI-07-86-PM2.6-C1 1.2909 FM 0.0037 UNIDENTIFIED Charcoal 0.0008
PRI-07-86-PM2-C3 1.2041 FM 0.0033 Meliaceae Charcoal 0.0038
PRI-07-86-L2.1-C17 2395 25 UNIDENTIFIED Charcoal 0.0022
PRI-07-86-L2.1-C12 1635 25 UNIDENTIFIED Hardwood 0.0027
PRI-07-86-L2-l2.1-C11 110 25 Meliaceae Charcoal 0.0019
PRI-07-86-L2-C6 1230 25 UNIDENTIFIED Charcoal 0.0015
PRI-07-86-PM2.2-C2 4170 25 UNIDENTIFIED Hardwood 0.0018
PRI-07-86-L2.4-C19 205 25 Meliaceae Charcoal 0.0009

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  • Pollen & Starch
  • Phytolith & Starch
  • Climate Modeling
  • Parasite Analysis
  • Diatom Analysis
  • Macrofloral Remains
  • Charcoal and Wood ID
  • AMS Radiocarbon
  • Fiber Analysis
  • Faunal Analysis
  • Protein Analysis
  • FTIR
  • Organic Residues/Lipid
  • pXRF
  • XRD
  •