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Congratulations to the 2026 NOSAMS Graduate Student Interns

July 28, 2026

Congratulations to the 2026 NOSAMS Graduate Student Interns
NOSAMS is pleased to announce the recipients of the 2026 graduate student internships:

Phyllis Koh (Columbia University): "Investigating past source water variability of the Florida Current using radiocarbon measurements of Siderastera Siderea coral"

Fan Liu (University of California, Santa Barbara): "Radiocarbon and thermochemical constraints on terrestrial carbon export to the Arctic Ocean"

Kaitlyn Tucker (University of Florida): "Bomb 14C in Otolith Protein as a Novel Method of Age Validation for Deepwater Fishes"

Highlights from the Recent Literature

Adomako-Mensah, E., Johnson, W. P., Carter, S. C., Solomon, D. K., Mace, W. D., Hynek, S. A., & Hurlow, H. (2026). Significance of ancient artesian fresh groundwater below the playa of a hypersaline terminal lake of hemispheric significance. Journal of Hydrology668, 134813. https://doi.org/10.1016/j.jhydrol.2025.134813

Ballalai, J. M., Vázquez Riveiros, N., Santos, T. P., Nascimento, R. A., Mudelsee, M., Piacsek, P., Venancio, I. M., Dias, B. B., Belem, A., Costa, K. B., Toledo, F., & Albuquerque, A. L. S. (2026). Modes of deep-water circulation in the subtropical South Atlantic over the last 770 kyr revealed by a zonal δ13C gradientPalaeogeography, Palaeoclimatology, Palaeoecology689, 113679. https://doi.org/10.1016/j.palaeo.2026.113679

Bao, R., Che, Y., Liu, M., Zhang, N., Zhou, Y., Dong, L., Li, S., Sherwood, O. A., Yu, M., Chen, Z., Yang, S., Wang, N., Zhu, L., Chen, J., Bao, M., Li, H., Chen, L., Wu, W., Ma, H., & Burdige, D. J. (2026). Efficient preservation of old methane-derived organic carbon in deep-sea surface sediments. Nature Communicationshttps://doi.org/10.1038/s41467-026-74250-2

Brown, G. A., Love, A. J., Banks, E. W., Broadley, M. W., Tyne, R. L., Chambers, T. E., Deslandes, A., Suckow, A., Musan, I., Cahill, K. L., Jenkins, W. J., & Seltzer, A. M. (2026). Integrated groundwater noble gas and isotope tracers constrain hydroclimate variability and subsurface volatile sources. Earth and Planetary Science Letters690, 120173. https://doi.org/10.1016/j.epsl.2026.120173

Chu, M., Liu, K., Cai, Z., Rasbury, T., Kölling, M., Zabel, M., McHugh, C., Strasser, M., Ikehara, K., & Bao, R. (2026). Sediment-modulated seafloor residence time controls efficient organic carbon burial in subduction zones. Nature Communicationshttps://doi.org/10.1038/s41467-026-72049-9

Cisternas, M., Saldaña, B., Ely, L. L., Wesson, R. L., Guerra, M., Brill, D., Melnick, D., Espinoza, A., Dura, T., & Pilarczyk, J. (2026). Paleoseismic evidence for the 1730 Mw ≥9 Chile earthquake in a former coastal lagoon: An infrequent, shallow, tsunamigenic rupture with plausible near-term recurrence. Quaternary Science Reviews375, 109789. https://doi.org/10.1016/j.quascirev.2025.109789

Clift, P. D., Wycoff, B., Carter, A., Muñoz, S., Neubeck, N., Gregory, B., Wilson, C. A., Rittenour, T., Blusztajn, J., & Ali, T. (2026). Climatic and anthropogenic controls on late Holocene sediment transport to the Gulf of Mexico by the Mississippi River. Earth-Science Reviews275, 105401. https://doi.org/10.1016/j.earscirev.2026.105401

Finkenbinder, M. S., Lane, T. P., Adamson, K. R., Finney, B. P., Abbott, M. B., Monteath, A. J., Ianno, A., Papp, C. N., Fortune, A. F., Delpais, M. J., Novak, M. E., Delgado Rodriguez, A. Y., & Baratta, D. D. (2026). Lake sediment records of deglaciation and post-glacial paleoenvironmental conditions, northeast Pennsylvania, USAQuaternary Science Reviews389, 110132. https://doi.org/10.1016/j.quascirev.2026.110132

Hathorne, E. C., Bertlich, J., Hembury, D., & James, R. H. (2026). The effects of shell size and mass on trace element incorporation in different species of planktonic foraminiferaFrontiers in Marine Science13https://doi.org/10.3389/fmars.2026.1792234

Henne, P. D., Stolze, S., Kehrwald, N. M., Brice, B., & Allen, C. D. (2026). Millennial-scale climatic and cultural impacts on vegetation and fire at the southern edge of the Rocky Mountains, USA. Quaternary Science Reviews376, 109821. https://doi.org/10.1016/j.quascirev.2026.109821

Lee, S.-C., Lee, K., Cha, J.-Y., Lee, E.-J., & Oh, N.-H. (2026). Highly varying radiocarbon isotope ratios of dissolved organic carbon in forest headwater streams in South Korea. Journal of Hydrology664, 134616. https://doi.org/10.1016/j.jhydrol.2025.134616

Lucas, A., Pallacks, S., Incarbona, A., Mortyn, P. G., & Ziveri, P. (2026). Tropicalization and biodiversity restructuring of calcifying plankton in a rapidly warming Mediterranean Sea. Global and Planetary Change259, 105314. https://doi.org/10.1016/j.gloplacha.2026.105314

Paradeisis-Stathis, S., Waters, M. N., Willard, D. A., & Vachula, R. S. (2026). Cyanobacteria and aquatic ecosystem dynamics across 28,000 years of environmental changes in subtropical North America. Quaternary Science Reviews376, 109842. https://doi.org/10.1016/j.quascirev.2026.109842

Repasch, M., Anderson, S. P., Anderson, R. S., Arcuri, J., Galy, V., Koch, J. C., & Overeem, I. (2026). Erosional and Hydrological Controls on the Age and Thermochemical Stability of Particulate Organic Carbon in an Arctic River. Global Biogeochemical Cycles40(6), e2026GB009202. https://doi.org/10.1029/2026GB009202

Zhu, F., Carter-Champion, A., Wharton, J. H., Bracamontes-Ramírez, J., Burke, A., de Menocal, P. B., Fairman, D., Keigwin, L. D., Marchitto, T. M., Papachristopoulou, E., Rae, J. W. B., Rosenthal, Y., Zhao, N., & Thornalley, D. J. R. (2026). Co-ordinated shifts in deep-water formation and Gulf Stream migration during abrupt climate changesNature Communications17(1), 4966. https://doi.org/10.1038/s41467-026-73832-4

A full bibliography of publications utilizing NOSAMS analyses can be found here.
Did we miss your recent NOSAMS publication? Email us here.

NOSAMS Graduate Student Internship opportunity – deadline extended

June 1, 2026

NOSAMS Graduate Student Internship opportunity - deadline extended to June 10
Two internships are awarded annually to U.S. based graduate students to carry out research at NOSAMS. Successful applicants are awarded funds to cover all analytical costs (for a modest number of analyses), round-trip travel and accommodation for a stay at WHOI, and subsistence while in Woods Hole, but not field work and sampling. Applications are due by June 10, 2026; see here for more information or to apply.

Highlights from the Recent Literature
Anderson, L., Finney, B.P. & Baxter, W.B. (2026) Shifting winter atmospheric teleconnections to the North Pacific reconcile Younger-Dryas and Holocene δ18O signals. Nature Communications 17, 2287.
https://doi.org/10.1038/s41467-026-68841-2

Alcorn, R., Ontiveros-Cuadras, J. F., Govindankutty Menon, A., Glock, N., Tappa, E., Burke, J., Castillo, M.L.M., and Davis, C. (2026). Expansion of the Eastern Tropical North Pacific oxygen minimum zone during the last deglaciation recorded by planktic foraminifera. Paleoceanography and Paleoclimatology, 41, e2025PA005370. https://doi.org/10.1029/2025PA005370

Ke, Y., West, A.J., Geyman, E.C., Huy, K.A., Dion-Kirschner, H., Smith, M.I., Andau, J.S., Magyar, J.S., Lamb, M.P., and Fisher, W.W. (2026) Persistent organic carbon storage in river floodplains over millennia. Nat Commun. https://doi.org/10.1038/s41467-026-72405-9

Ryu, Y., Han, H., Na, T., Kim, G.., and Hwang, J. (2026) Marginal seas as potential sinks for refractory carbon. Limnol Oceanogr, 71: e70297. https://doi.org/10.1002/lno.70297

Liu, F., Macdonald, F.A., Galy, V., Li, L., Raven, M.R., Li, G., Chen, J., Li, G.K. (2026) Tectonic and climatic controls on organic carbon burial in a tropical arc-continent collision zone. Earth Planet. Sci. Lett. 687 https://doi.org/10.1016/j.epsl.2026.120057

Herlinger, J. F., Allen, K. A., Hall, B. L., Putnam, A. E., Handley, M. J., Lowell, T. V., & Russell, J. L. (2026). Intensified meltwater influx during Heinrich Stadial 1 recorded in the Gulf of Maine, USA. Paleoceanography and Paleoclimatology, 41, e2026PA005442. https://doi.org/10.1029/2026PA005442

Mailloux, B.J., Ahmed, K.M., Akter, A., Blau, S., Bostick, B., Buchholz, B.A., Choudhury, I., Ellis, T., Harvey, C., Kahn, M., Killough, M., Vetter, M.C.Y.L., Michael, H., Mozumder, R., Scanlan, K., Slater, G., Trembath-Reichert, E., van Green, A. (2026) Advected carbon younger than sediment fuels microbial metabolism in a pumped deep aquifer. Commun. Earth Environ. https://doi.org/ 10.1038/s43247-026-03590-0

Bongers, J.L., Dalton, J.A., Marsh, E.J., Mejia, J.G., Robinson, J.R., Osborn, J., Milton, E.B.P., Yaber, A.R., Sarmiento, I.A., Pizarro, N.O., Kassadjikova, K., Fehren-Schmitz, L. (2026  Ancient DNA reveals a family ossuary and long-distance migration on the Pacific coast before the Inca Empire. Nat Commun 17, 4222. https://doi.org/10.1038/s41467-026-72216-y

 

 

A full bibliography of publications utilizing NOSAMS analyses can be found here.
Did we miss your recent NOSAMS publication? Email us here.

MICADAS Users Workshop; graduate student internship

April 23, 2026

Announcement: MICADAS Users Workshop
We are pleased to announce that the 2nd MICADAS User Workshop will be held on the campus of University of California Irvine on September 9–10, 2026, co-organized by KCCAMS (UCI),  NOSAMS (WHOI) and AEL-AMS (uOttawa). The workshop is intended for individuals who currently have a MICADAS or related instrument at their institution, or who are actively planning to acquire one. Attendees are expected to share best practices, recent advances, successes, and challenges related to their MICADAS and peripherals. To learn more or to register please visit here.

Second Reminder: NOSAMS Graduate Student Internship opportunity
Two internships are awarded annually to U.S. based graduate students to carry out research at NOSAMS. Successful applicants are awarded funds to cover all analytical costs (for a modest number of analyses), round-trip travel and accommodation for a stay at WHOI, and subsistence while in Woods Hole, but not field work and sampling. Applications are due by June 1, 2026; see here for more information or to apply.

Highlights from the Recent Literature
Tuross, N. and Reynard, L.M. (2026) Isotopes of feather art: location, husbandry, production and antiquity, Isotopes in Environmental and Health Studies, https://doi.org/10.1080/10256016.2026.2647478

Kolb, M. J., Seabold, E., Lincoln, N., Farnsworth-Wallace, B., & Dega, M. (2026). Dryland Swale Farming and Long-term Land Use in Upland Kula, Maui, Hawaiʻi. Journal of Field Archaeology, 1–16. https://doi.org/10.1080/00934690.2026.2633474Kol

Wendt JAF, Neeley M, Alt M, Ewing SA, Fischer GS and McWethy DB (2026) American bison kill site use and abandonment amid drought and cultural shifts in late Holocene Montana. Front. Conserv. Sci. 6:1688950. https://doi.org/10.3389/fcosc.2025.1688950

Lu, W., Oppo, D. W., Jiang, X., Dang, H., & Jian, Z. (2026). Lower glacial oxygen in the eastern equatorial Pacific concentrated in the deep sea. Geophysical Research Letters, 53, e2025GL119372. https://doi.org/10.1029/2025GL119372

Edgerton, B.A. and Chipman, M.L. (2026), Late Holocene moisture variability in Arctic Alaska from chitin δ18O. Boreas. https://doi.org/10.1111/bor.70052

 

A full bibliography of publications utilizing NOSAMS analyses can be found here.
Did we miss your recent NOSAMS publication? Email us here.

NOSAMS graduate student internship; recent literature highlights

March 30, 2026

NOSAMS Graduate Student Internship opportunity
Two internships are awarded annually to U.S. based graduate students to carry out research at NOSAMS. Successful applicants are awarded funds to cover all analytical costs (for a modest number of analyses), round-trip travel and accommodation for a stay at WHOI, and subsistence while in Woods Hole, but not field work and sampling. Applications are due by June 1, 2026; see here for more information or to apply.

Highlights from the Recent Literature
Loope, H.M., Antinao, J.L., Hanson, P.R., Jacobs, P.M., Grimley, D.A. (2026) Last glacial maximum and late glacial aeolian sand activity, south-central Indiana, USA. Quaternary Research, no. (2026): 1-18. https://doi.org/10.1017/qua.2025.10063

Steward, B.D., Bone, S.E., Spielman-Sun, E., Marcus, M.A., Pierce, S., Boye, K., Noel, V. (2026) Organic colloid composition in variable-redox porewaters within a mountainous floodplain. Water Research https://doi.org/10.1016/j.watres.2026.125556

Collins, C.R., Parenteau, M.N., Jahnke, L.J., Kubo, M.D., Moseman-Valtierra, S. Young, K., Cardance (2026) Lipid biomarkers reveal dominance of aerobic methanotrophy in a continental serpentinizing system. Front. Microbiol. 16: 1694997. https://doi.org/10.3389/fmicb.2025.1694997

Stewart, B.D., Bone, S.E., Spielman-Sun, E., Marcus, M.A., Pierce, S., Boye, K., Noel, V. (2026) Organic colloid composition in variable-redox porewaters within a mountainous floodplain. 295: 125556. https://doi.org/10.1016/j.watres.2026.125556

Yao, Q. Liu, K.-b., McCloskey, T., Midway, S., Fang, S., Lam, N., and Wang, K. (2026) Geographically metachronous pattern of tropical cyclone activity regimes across the North Atlantic Basin. Global and Planetary Change. 260: 105379 https://doi.org/10.1016/j.gloplacha.2026.105379

Wendt, J.A.F., Neeley, M., Alt, M., Ewing, S.A., Fischer, G.S., McWethy, D.B. (2026) American bison kill site use and abandonment amid drought and cultural shifts in late Holocene Montana. Front. Conserv. Sci 6: 1688950. https:// doi.org/10.3389/fcosc.2025.1688950

Zhou, L., Su, Y., Li, Zheng, S., Han, H., Lu, P., Wang, P., Chen, X., Yu, S.-Y. (2026) Holocene flood clusters in East China driven by coupled ENSO-Western Pacific Warm Pool dynamics. Paleogeography, Paleoclimatology, Paleoecology. 689: 113671. https://doi.org/10.1016/j.palaeo.2026.113671

Wood, J.R., Mahan, S., East, A.E., Bilderback. E.L., Krolczyk, E.T., Rasmussen, B.A., Zyatitsky, K.S., Hallas, L. (2026) Geochronologic data reveal Late Pleistocene to Holocene debris-flow history and wildfire association within Whiskeytown National Recreation Area, Klamath Mountains, northern California. Quaternary Research. https://doi.org/10.1017/qua.2025.10064

Linscott, B., Wallace, A.A., Becerra-Valdivia, L., Harris, M.R.P., Fireman, A.L., Bennett, J.D., Patterson III, W.F., Vander Zanden, H.B. (2026) Bomb radiocarbon reveals keratin growth dynamics in loggerhead (Caretta caretta) and green (Chelonia mydas) turtles. Marine Biology. 173: 34 https://doi.org/10.1007/s00227-025-04792-4

McWethy, D.B., Alt, M., Tipkemper-Wolfe, A. (2026) Millennial-Scale Fire and Vegetation Change from a Rare Mid-Latitude Permafrost Fen (Beartooth Plateau, WY). Fire 9(3): 103. https://doi.org/10.3390/fire9030103

Lu, W., Oppo, D.W., Liu, Z. et al. (2025) Warmer shallow Atlantic during deglaciation and early Holocene due to weaker overturning circulation. Nat. Geosci. 18, 787–792. https://doi.org/10.1038/s41561-025-01751-y

Medina Faull LE, Taylor GT, Beaupré SR (2025) Microplastic contaminants potentially distort our understanding of the ocean’s carbon cycle. PLoS One 20(10): e0334546. https://doi.org/10.1371/journal.pone.0334546

Wharton, J.H., Renoult, M., Gebbie, G. et al. Deeper and stronger North Atlantic Gyre during the Last Glacial Maximum. Nature 632, 95–100 (2024). https://doi.org/10.1038/s41586-024-07655-y

A full bibliography of publications utilizing NOSAMS analyses can be found here.
Did we miss your recent NOSAMS publication? Email us here.

January 2026 Newsletter

January 30, 2026

Ever wonder what happens to samples before they’re analyzed?

At NOSAMS, organic carbon samples are carefully pre-treated using either acid-base-acid (ABA) methods or acid leaching to ensure accurate results. For select samples, we use our automated OCtoPuS — the Organic Carbon Pretreatment System.

Curious to see how it works? Watch OCtoPuS in action in this short video.

Highlights from the Recent Literature

Keigwin, L.D., Petrie, B., Boyle, E.A. (2025) Slope water intrusions onto Canadian Atlantic continental shelf during the past 1800 Years.Paleoceanography and Paleoclimatology 40, e2025PA005183. https://doi.org/10.1029/2025PA005183

Ryu, Y., Han, H., Na, T., Kim, G., and Hwang, J. (2025) Marginal seas as potential sinks for refractory carbon. Limnol. Oceanogr. 71(1): e70297.  https://doi.org/10.1002/lno.70297

Xia, P., Luo, X., Liu, B., Zhang, Y., Meng, X., and Du, J. (2026) The sources and export mechanisms of dissolved organic carbon in pore water of a mangrove swamp revealed by dual carbon isotopes. Catena 263: 109691. https://doi.org/10.1016/j.catena.2025.109691

Pasqualini, A., Smethie, W.M., Newton, R., Schlosser, P. (2026) Deep water renewal in the Amerasian Basin derived from natural and anthropogenic tracer datasets. JGR Oceans 131(1): e2025JC023245. https://doi.org/10.1029/2025JC023245

Tsalickis, A., Waters, M.N., Campbell, J., Vachula, R.S. (2026) Heavy metal-based bat guano chronologies: A cautionary tale. 36(1): 107-111. https://doi.org/10.1177/09596836251378031

Hall, B.L., Putnam, A.E., Lowell, T.V., Denton, G.H., Russell, J.L., Soteres, R.L., Spoth-Ascencao, M.M., Miles, M.L., Thomas, S.G., Moreno, P.I., Schwartz, R., and Schaefer, J.M. (2026) Rapid thinning of the Cordillera Darwin Icefield at the onset of Termination I. Quaternary Science Reviews. 373: 109754. https://doi.org/10.1016/j.quascirev.2025.109754

Boxleitner, K., Spengler, R.N., Alekseitseva, V., Chargynov, T., Abdykanova, A., Sayfuloev, N., Shnaider, S. (2026) Archaeobotanical investigations at high-elevation sites of the Pamier Mountains and Fergana foothills. iScience 29(1): 114349. https://doi.org/10.1016/j.isci.2025.114349

A full bibliography of publications utilizing NOSAMS analyses can be found here.

Did we miss your recent NOSAMS publication? Email us here.

December 2025 Newsletter

January 30, 2026

Highlights from the Recent Literature

Barry, P.H. et al. (2025) Carbon, nitrogen, and noble gas isotopes reveal deep volatile signatures in thermal springs in the Central Volcanic Zone (CVZ) of the Andes. Earth Planet Sci. Lett. 651: 11969. https://doi.org/10.1016/j.epsl.2024.119169

Lee, S.C et al., (2025) Sediments near industrial ports can be hotspots of fossil carbon accumulation. Marine Pollution Bulletin 213: 117636 https://doi.org/10.1016/j.marpolbul.2025.117636

Walker, M.R. et al., (2025) Reconstructing Annual Δ14C During Miyake Events Using Deciduous and Evergreen Trees. Global Biogeochemical Cycles  39,e2024GB008423. https://doi.org/10.1029/2024GB008423

Shervette, V.R. et al. (2025) “Bomb radiocarbon in otoliths and eye lenses of reef fishes from Atlantic waters of the southeastern U.S..” Environmental Biology of Fishes, no. 8: 1131-1149. https://doi.org/10.1007/s10641-025-01713-8

A full bibliography of publications utilizing NOSAMS analyses can be found here.

November 2025 Newsletter

January 30, 2026

Sue Handwork, Al Gagnon retiring

After a combined 83 years of service, NOSAMS administrator Sue Handwork and prep lab manager Al Gagnon are concluding their distinguished careers at NOSAMS. Al retired earlier this year, and Sue will soon follow. Over the years, many of you have shared how Al and Sue have shaped your experiences at NOSAMS, whether guiding you through the art of flame sealing or helping you navigate complex university payment systems.

Please join us in congratulating Sue and Al as they embark on their next chapters.

Highlights from the Recent Literature

Jones, B. M., Kanevskiy, M. Z., Ward Jones, M. K., et al. (2025) Cryptic Ice Wedge Networks in Holocene Peat, Yukon-Kuskokwim Delta, Alaska.Permafrost and Periglacial Processes, 0:1-24 https://doi.org/10.1002/ppp.70004

Sert, M. F., Bernstein, H. C., Dølven, K. O., et al. (2025) Cold Seeps and Coral Reefs in Northern Norway: Carbon Cycling in Marine Ecosystems With Coexisting Features  Journal of Geophysical Research: Biogeosciences, no. 3: e2024JG008475. https://doi.org/10.1029/2024JG008475

Gremillion, S. L., Wallace, D. J., Eisemann, E. R. (2025) Interdisciplinary Applications for Identifying and Quantifying Modern Storm Washover Deposits on Pea Island, North Carolina, USA. Journal of Geophysical Research: Oceans, no. 5: e2024JC021695. https://doi.org/10.1029/2024JC021695

A full bibliography of publications utilizing NOSAMS analyses can be found here.

October 2025 Newsletter

October 9, 2025

NOSAMS leading 14C-DIC interlaboratory comparison

Internationally recognized standard material does not exist for the 14C analysis of dissolved inorganic carbon (DIC), creating challenges for laboratories seeking to carry out this analysis. NOSAMS is leading an effort to carry out the first 14C-DIC interlaboratory comparison. The exercise will include surface and deep (2200 m) seawater collected from Station ALOHA located in the North Pacific subtropical gyre. Depending on availability, we will also distribute radiocarbon depleted groundwater.

If you would like to participate in the intercomparison please let us know here.

seawater 14C-DIC samples

Call for Applications: NOSAMS Postdoctoral Scholar

We invite applications from innovative and driven researchers to carry out radiocarbon research at the NOSAMS facility. We seek an outstanding individual to pursue work in one or both of the following areas: (i) radiocarbon in oceanic systems (ii) advances in accelerator mass spectrometry and related techniques. Applicants can carry out research with any WHOI scientific staff member on their research interests. Applications are due December 1, 2025. More information can be found here.

Highlights from the Recent Literature

Sparrow K.J., Chanton J.P., Hanke U.M., Kurz, M.D., McNichol A.P. (2024) Peatland organic matter quality varies with latitude as suggested by combination of FTIR and Ramped Pyrolysis Oxidation. PLoS ONE 19(11): e0309654. https://doi.org/10.1371/journal.pone.0309654

Tremblay, M., J.C. Stager, J.M. St-Jacques, S. Murphy, M., Peros, B.S. Carl. (2024) A 13,000 year history of vegetation and fire in a rare inland pine barrens: The Albany Pine Bush (Albany County, New York, USA). PLoS ONE https://doi.org/10.1371/journal.pone.0314101

Fang, W., Evangeliou, N., Eckhardt, Sabine, E., Xiao, H., and Li, H. (2025). Unprecedented shifts in aerosol pollution sources in China under a decade of clean air actions. Communications Earth & Environment, no. 1 (2025): 512. https://doi.org/10.1038/s43247-025-02487-8

Arora, S., Meenan, N., Srivastava, E., Cochran, D., et al. (2025) Earthquake rupture variability along the central seismic gap segment (78°– 82°E) of the Himalayan Frontal Thrust, Western and Central Himalaya. Scientific Reports, no. 1 (2025): 21916. https://doi.org/10.1038/s41598-025-07274-1

Hulver, A.M., Teixidó, N., Kemp, D. W., et al. (2025) High heterotrophic capacity favors Mediterranean coral success and resilience in the face of ocean acidification Coral Reefs, 44:1041-1054. https://doi.org/10.1007/s00338-025-02663-4

A full bibliography of publications utilizing NOSAMS analyses can be found here.

NOSAMS Seawater 14C-DIC Inter-laboratory Comparison

September 15, 2025
NOSAMS is organizing an inter-laboratory comparison for seawater 14C-DIC. The exercise will include surface and deep (2200 m) seawater collected from Station ALOHA located in the North Pacific subtropical gyre.
To participate, please fill out and submit this form. Information marked with an asterisk (*) is required.
The deadline for registration is November 1, 2025. We anticipate samples will be shipped out in January 2026. For further information or inquiries please email NOSAMS.
Sample and shipment details
We anticipate sending triplicate bottles of both surface and deep seawater samples. If resources allow, we will include 1-2 bottles of 14C-free groundwater collected from Fort Caswell (NC, USA). All samples are poisoned with mercuric chloride and sealed in 500-ml glass bottles. Bottles will be packaged securely for shipping in a plastic crate of dimensions 27.2 in (L) x 17.2 in (W) x 12.5 in (H) (69 x 44 x 32 cm).
NOSAMS will make its best possible effort to provide adequate documentation of the samples, but it is the responsibility of the recipient of the 14C-DIC inter-comparison samples to arrange for necessary clearances, fees, and taxes. If you have concerns in this regard, please contact NOSAMS.

December 2024 Newsletter

December 19, 2024

Happy Holidays from NOSAMS

The past six months have been very busy at the NOSAMS facility. In September we hosted a MICADAS workshop that brought together 42 people from 18 international institutions at WHOI, plus an additional 38 online participants.

Mark Roberts has recently retired after 22+ productive years as Staff Physicist with the facility. We are happy to report he will maintain an Emeritus role at NOSAMS.

Last week we hosted an Introduction to Radiocarbon workshop in Washington, D.C. prior to the AGU Fall Meeting. Attendees had the opportunity to practice sampling and discuss issues ranging from preventing contamination to nomenclature.

Our fees will be increasing effective April 2025. The new fee chart can be found on our website.

Highlights from the recent literature

Lester, J. G., Graven, H. D., Khatiwala, S., McNichol, A.P. (2024) Changes in Oceanic Radiocarbon and CFCs Since the 1990s.” Journal of Geophysical Research-Oceans 129, e2023JC020387. https://doi.org/10.1029/2023JC020387

McHugh, C. M., Seeber, L., Gulick, Sean P.S., et al. (2024) Sedimentary signatures of large earthquakes along the submerged Enriquillo−Plantain Garden transpressional plate boundary, northern Caribbean.” Geology . https://doi.org/10.1130/G52258.1

Goldstein, S. T., Mueller, N. G., Janzen, A., et al. (2024) Early agriculture and crop transitions at Kakapel Rockshelter in the Lake Victoria region of eastern Africa.” Proceedings of the Royal Society B: Biological Sciences, no. 2026 : 20232747. https://doi.org/10.1098/rspb.2023.2747

A full bibliography of publications utilizing NOSAMS analyses can be found here.