@article {2994,
	title = {14C Blank Corrections for 25{\textendash}100 μg Samples at the National Ocean Sciences AMS Laboratory},
	journal = {Radiocarbon},
	volume = {61},
	year = {2019},
	month = {10/2019},
	pages = {1403 - 1411},
	abstract = {Replicate radiocarbon (14C) measurements of organic and inorganic control samples, with known Fraction Modern values in the range Fm = 0{\textendash}1.5 and mass range 6 μg{\textendash}2 mg carbon, are used to determine both the mass and radiocarbon content of the blank carbon introduced during sample processing and measurement in our laboratory. These data are used to model, separately for organic and inorganic samples, the blank contribution and subsequently {\textquotedblleft}blank correct{\textquotedblright} measured unknowns in the mass range 25{\textendash}100 μg. Data, formulas, and an assessment of the precision and accuracy of the blank correction are presented.},
	keywords = {AMS, AMS dating, blank corrections},
	isbn = {0033-8222, 1945-5755},
	doi = {10.1017/RDC.2019.74},
	url = {https://www.cambridge.org/core/journals/radiocarbon/article/14c-blank-corrections-for-25100-g-samples-at-the-national-ocean-sciences-ams-laboratory/494B9CF72445198570213B4A2CC303D0},
	author = {Roberts, M. L. and Elder, K. L. and Jenkins, W. J. and Gagnon, A. R. and Xu, L. and Hlavenka, J. D. and Longworth, B. E.}
}
@article {246,
	title = {A High-Performance (14)c Accelerator Mass Spectrometry System},
	journal = {Radiocarbon},
	volume = {52},
	year = {2010},
	note = {id: 2095; PT: J; CT: 20th International Radiocarbon Conference; CY: MAY 31-JUN 05, 2009; CL: Big Isl, HI; SI: 1; UT: WOS:000285437800005},
	pages = {228-235},
	abstract = {A new and unique radiocarbon accelerator mass spectrometry (AMS) facility has been constructed at the Woods Hole Oceanographic Institution. The defining characteristic of the new system is its large-gap optical elements that provide a larger-than-standard beam acceptance. Such a system is ideally suited for high-throughput, high-precision measurements of (14)C. Details and performance of the new system are presented.},
	issn = {0033-8222},
	doi = {10.2458/azu_js_rc.52.3657},
	author = {Roberts, M. L. and Burton, J. R. and Elder, K. L. and Longworth, B. E. and McIntyre, C. P. and von Reden, K. F. and Han, B. X. and Rosenheim, B. E. and W. J. Jenkins and Galutschek, E. and McNichol, A. P.}
}
@article {2443,
	title = {Linking lithology and land use to sources of dissolved and particulate organic matter in headwaters of a temperate, passive-margin river system},
	journal = {Geochimica Et Cosmochimica Acta},
	volume = {71},
	year = {2007},
	note = {30},
	month = {Sep},
	pages = {4233-4250},
	abstract = {A number of rivers have been found to transport highly aged organic matter [OM]; however, the sources of this aged material remain a matter of debate. One potential source may be erosion and weathering of headwater lithologies rich in ancient sedimentary OM. In this study, waters, suspended particulates, streambed sediments, rocks and soils from fourteen small headwater watersheds of a mid-size, temperate, passive margin river were sampled and characterized by Delta C-14, delta C-13, and POC/TPN ratios to identify sources of particulate and dissolved OM delivered to the river mainstem. These headwater sites encompass a range in lithology (OM-rich shales, OM-lean carbonate/mudstone facies, and OM-free crystalline rocks) and land use types (forested and agricultural), and allow investigation of the influence of agriculture and bedrock types on stream OM characteristics. Streams draining large areas of both agricultural land use and OM-rich lithology contain particulate OM [POM] that is more C-14-depleted than streams draining forested, shale-free watersheds. However, this is not sufficient to account for the significantly lower Delta C-14-POC measured in the river mainstern. Dissolved OM [DOM] Delta C-14 are in all cases enriched compared to POM from the same stream, but are otherwise highly variable and unrelated to either land use or lithology. POC/TPN ratios were likewise highly variable. POC and DOC delta C-13 signatures were similar across all watersheds. Based on isotope mass balance, C-14-free fossil OM sources contribute 0-12\% of total stream POM. Although these results do not unequivocally separate the influences of land use and lithology, watershed coverage by shale and agriculture are both important controls on stream A Delta C-14-POC. Thus export of aged, particle-associated OM may be a feature of river systems along both passive and active continental margins. (C) 2007 Elsevier Ltd. All rights reserved.},
	keywords = {ATCHAFALAYA RIVER, ATMOSPHERIC O-2, BLACK SHALE, continental-shelf, GULF-OF-MEXICO, marine-sediments, MINERAL, SPACE-TIME CLIMATE, STABLE-ISOTOPES, surface sediments, SURFACES},
	isbn = {0016-7037},
	doi = {10.1016/j.gca.2007.06.056},
	author = {Longworth, B. E. and Petsch, S. T. and Raymond, P. A. and Bauer, J. E.}
}
@conference {1775,
	title = {Regional variability in the ages and reactivities of riverine dissolved and particulate organic matter exported to a temperate ocean margin},
	booktitle = {ASLO Aquatic Sciences Meeting},
	year = {2007},
	note = {id: 477},
	month = {2007},
	address = {Santa Fe, NM},
	author = {Bauer, J. E. and Raymond, P. A. and Cole, J. J. and Petsch, S. T. and Longworth, B. E. and Caraco, N. F. and Keesee, E. J.}
}
@conference {1638,
	title = {A geostatistical approach to watershed sources of aged riverine organic matter to the Hudson-Mohawk River system},
	booktitle = {American Geophysical Union Fall Meeting},
	year = {2006},
	note = {id: 483},
	month = {2006},
	address = {San Francisco, CA},
	author = {Longworth, B. E. and Petsch, S. T. and Raymond, P. A. and Bauer, J. E.}
}
@conference {1790,
	title = {Sources age and composition of dissolved and particulate organic matter delivered to a passive margin river system},
	booktitle = {ASLO/AGU Ocean Science Meeting},
	year = {2006},
	note = {id: 485},
	month = {2006},
	address = {Honolulu, HI},
	author = {Petsch, S. T. and Gordon, E. S. and Longworth, B. E. and Schillawki, S. E. and Raymond, P. A.}
}
@article {2028,
	title = {Controls on the variability of organic matter and dissolved inorganic carbon ages in northeast U.S. rivers},
	journal = {Marine Chemistry},
	volume = {92},
	year = {2004},
	note = {id: 967},
	month = {2004},
	pages = {353-366},
	author = {Raymond, P. A. and Bauer, J. E. and Caraco, N. F. and Cole, J. J. and Longworth, B. E. and Petsch, S. T.}
}
@conference {1563,
	title = {Ancient organic matter sources to the Hudson-Mohawk River system: implications of riverine transport of ancient organic matter for the global biogeochemical},
	booktitle = {American Geophysical Union (AGU)},
	year = {2003},
	note = {id: 1027},
	month = {2003},
	address = {San Francisco, CA},
	author = {Longworth, B. E. and Raymond, P. A. and Petsch, S. T.}
}
