Decadal- to interannual-scale source water variations in the Caribbean Sea recorded by Puerto Rican coral radiocarbon

Kilbourne, K. H.; Quinn, T. M.; Guilderson, Thomas P.; Webb, Robert S.; Taylor, Frederick W.

doi:10.1007/s00382-007-0224-2

Cited by 49 publications

(87 citation statements)

References 48 publications

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“…Druffel and Linick 1978;Druffel 1980Druffel , 1982Druffel , 1989Guilderson et al 1998Guilderson et al , 2004Kilbourne et al 2007;Druffel et al 2007Druffel et al , 2008. Recently, Kilbourne et al (2007) produced a subdecadal 14 C time series from a Puerto Rico coral (Montastraea faviolata) from AD 1750 to 2000 that showed significant decadal variability likely related to the advection of different water masses into the Caribbean Sea, and possible changes in the Atlantic meridional overturning circulation. Druffel et al (2007) provided an ultra-high resolution (annual) 14 C time series from the Galápa-gos Islands in the tropical east Pacific based on a coral colony with annual banding (Pavona clavus), which demonstrated the natural variability of the oceanic 14 C since AD 1600.…”

Section: Introductionmentioning

confidence: 99%

Very Long-Lived Mollusks Confirm 17th Century AD Tephra-Based Radiocarbon Reservoir Ages for North Icelandic Shelf Waters

et al. 2008

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ABSTRACT. Marine sediment records from the north Icelandic shelf, which rely on tephrochronological age models, reveal an average ΔR (regional deviation from the modeled global surface ocean reservoir age) of approximately 150 yr for the last millennium. These tephra-based age models have not hitherto been independently verified. Here, we provide data that corroborate ΔR values derived from these sediment archives. We sampled the youngest portion (ontogenetic age) of a bivalve shell, Arctica islandica (L.), for radiocarbon analysis, which was collected alive in 2006 from the north Icelandic shelf iñ 80 m water depth. Annual band counting from the sectioned shell revealed that this clam lived for more than 405 yr, making it the longest-lived mollusk and possibly the oldest non-colonial animal yet documented. The 14 C age derived from the umbo region of the shell is 951 ± 27 yr BP. Assuming that the bivalve settled onto the seabed at AD 1600, the corresponding local value of ΔR is found to be 237 ± 35 yr by comparison of the 14 C age with the Marine04 calibration curve (Hughen et al. 2004) at this time. Furthermore, we cross-matched a 287-yr-old, dead-collected, A. islandica shell from AD 1601 to 1656 from the same site with the live-caught individual. 14 C analysis from the ventral margin of this shell revealed a ΔR of 186 ± 50 yr at AD 1650. These values compare favorably with each other and with the tephra-based ΔR values during this period, illustrating that 14 C from A. islandica can effectively record 14 C reservoir changes in the shelf seas.

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Section: Introductionmentioning

confidence: 99%

Very Long-Lived Mollusks Confirm 17th Century AD Tephra-Based Radiocarbon Reservoir Ages for North Icelandic Shelf Waters

et al. 2008

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“…Radiocarbon ages were converted to calendar years using one of two reference datasets. Fraction modern values <0.927 (corresponding to ages older than c. 1750 AD) were converted to calendar years using the Calib 6.0 program (Stuiver and Reimer, 1986) and the IntCal/MarineCal09 calibration dataset based on tree ring chronologies (Reimer et al, 2004), whereas values >0.927 were converted to calendar years using the Calibomb program (Reimer et al, 2004) and a surface water F 14 C reconstruction for the Caribbean from a Montastraea faveolata coral core from Puerto Rico (Kilbourne et al, 2007). This calibration procedure produced conservative estimates of measurement uncertainty for all parameters, and provided calendar age probability distribution functions and ranges that included one standard deviation (Tables 1 and 2).…”

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confidence: 99%

Molluscan subfossil assemblages reveal the long-term deterioration of coral reef environments in Caribbean Panama

Cramer

Leonard‐Pingel

Rodriguez

et al. 2015

Marine Pollution Bulletin

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“…Few attempts have been made to determine local marine reservoir effects in the Caribbean. Studies in the Cariaco Basin, Venezuela (Hughen et al 1996), Jamaica, the Bahamas (Broecker and Olson 1961), and Puerto Rico (Kilbourne et al 2007) suggest, however, that the R may be minimal. The regional average for the Caribbean, including the Florida Keys and locations along the northern South American coast, is now estimated to have a weighted mean R of 15 ± 40, although this may change as further studies are conducted (also see www.qub.ac.uk/arcpal/marine).…”

Section: Resultsmentioning

confidence: 99%

New Radiocarbon Dates for the Grenadine Islands (West Indies)

Fitzpatrick

Giovas²

2011

Radiocarbon

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ABSTRACT. Intensified archaeological research in the Caribbean over the past 2 decades has provided a wealth of new information on how and when these islands were settled prehistorically. However, there has been a paucity of research on islands in the southern Lesser Antilles, which would allow for more rigorous testing of migration models and various settlement pattern hypotheses. To address some of these chronological and geographical gaps, we present a corpus of 41 radiocarbon dates from several sites in the Grenadine Island chain. Results to date support a relatively late Ceramic Age settlement of these smaller islands (about AD 400) compared to other nearby, larger islands in the southern Lesser Antilles (about AD 200) as well as the Caribbean as a whole (about 400/500 BC). Intriguing questions also remain as to an apparent, but as yet inadequately tested, pattern where earlier colonization dates are correlated with larger island size.

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Decadal- to interannual-scale source water variations in the Caribbean Sea recorded by Puerto Rican coral radiocarbon

Abstract: Water that forms the Florida Current, and eventually the Gulf Stream, coalesces in the Caribbean from both subtropical and equatorial sources.

Cited by 49 publications

References 48 publications

Very Long-Lived Mollusks Confirm 17th Century AD Tephra-Based Radiocarbon Reservoir Ages for North Icelandic Shelf Waters

Very Long-Lived Mollusks Confirm 17th Century AD Tephra-Based Radiocarbon Reservoir Ages for North Icelandic Shelf Waters

Molluscan subfossil assemblages reveal the long-term deterioration of coral reef environments in Caribbean Panama

New Radiocarbon Dates for the Grenadine Islands (West Indies)

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