@article { ISI:000286433100039,
	title = {The Deglacial Evolution of North Atlantic Deep Convection},
	journal = {SCIENCE},
	volume = {331},
	number = {{6014}},
	year = {2011},
	month = {JAN 14},
	pages = {202-205},
	type = {Article},
	abstract = {Deepwater formation in the North Atlantic by open-ocean convection is an essential component of the overturning circulation of the Atlantic Ocean, which helps regulate global climate. We use water-column radiocarbon reconstructions to examine changes in northeast Atlantic convection since the Last Glacial Maximum. During cold intervals, we infer a reduction in open-ocean convection and an associated incursion of an extremely radiocarbon (C-14)-depleted water mass, interpreted to be Antarctic Intermediate Water. Comparing the timing of deep convection changes in the northeast and northwest Atlantic, we suggest that, despite a strong control on Greenland temperature by northeast Atlantic convection, reduced open-ocean convection in both the northwest and northeast Atlantic is necessary to account for contemporaneous perturbations in atmospheric circulation.},
	issn = {0036-8075},
	doi = {10.1126/science.1196812},
	author = {Thornalley, David J. R. and Barker, Stephen and Broecker, Wallace S. and Elderfield, Henry and McCave, I. Nick}
}
@article {501,
	title = {A 190\% drop in atmosphere{\textquoteright}s Delta(14) C during the "Mystery Interval" (17.5 to 14.5 kyr)},
	journal = {Earth and Planetary Science Letters},
	volume = {256},
	year = {2007},
	note = {id: 1921; PT: J; UT: WOS:000246051000009},
	pages = {90-99},
	abstract = {Reconstructions of atmospheric Delta(14)C for the deglacial period reveal a 190 +/- 10\%. drop between 17.5 and 14.5 kyr before present, during the {\textquoteright}mystery interval{\textquoteright}. While it appears that the major contributor must be the mixing between an isolated low radiocarbon abyssal reservoir and the remainder of the ocean, a combination of (14)C measurements on coexisting benthic and planktic foraminifera shells and (13)C/(12)C measurements on benthic foraminifera make it difficult to identify a sufficiently large volume for this reservoir. An alternative scenario, based on higher (14)C production rates between about 38 and 18 kyr ago, would escape the need for a large, isolated reservoir prior to the mystery interval but instead would call for a better ventilated ocean afterwards. The addition of (14) C-deficient sedimentary carbon appears not to be an important contributor. While the unlikely explanation that the half-life of (14)C is 15\% greater than the accepted value (5730 yr) would eliminate the steady decrease in the (14)C/C over the last 40 kyr, it would not explain the steep drop which occurred between 17.5 and 14.5 kyr. (c) 2007 Elsevier B.V. All rights reserved.},
	issn = {0012-821X},
	doi = {10.1016/j.epsl.2007.01.015},
	author = {Broecker, Wallace and Barker, Stephen}
}
@article {394,
	title = {Radiocarbon age offsets of foraminifera resulting from differential dissolution and fragmentation within the sedimentary bioturbated zone},
	journal = {Paleoceanography},
	volume = {22},
	year = {2007},
	note = {id: 1920; PT: J; UT: WOS:000246308600002},
	pages = {PA2205-PA2205},
	abstract = {Shells of coexisting species of planktonic foraminifera from the Ontong Java Plateau reveal radiocarbon age offsets of up to 2200 years. Similar offsets are found between fragments and whole shells of single species. Steady state modelling of dissolution and bioturbation within the sedimentary mixed layer predicts age differences of up to several kiloyears due to the interplay between differential dissolution and fragmentation of foraminifer shells and bioturbation. The observation that fragile foraminiferal shells are systematically older than those of more robust species is more difficult to explain. Mechanisms of chemical erosion, interface dissolution, and sediment redistribution are all apparently unable to explain this phenomenon. A possible solution is presented in which a particular species may be represented by two distinct classes of shells which are more or less robust. In this case, differential dissolution and fragmentation causes an increase in the mean age as the fragile class contributes less to the remaining intact shells. This study highlights the vulnerability of low sedimentation rate cores to the effects of dissolution and bioturbation.},
	issn = {0883-8305},
	doi = {10.1029/2006PA001354},
	author = {Barker, Stephen and Broecker, Wallace and Clark, Elizabeth and Hajdas, Irka}
}
