An evaluation of benthic foraminiferal B/Ca and δ11B for deep ocean carbonate ion and pH reconstructions

Details An evaluation of benthic foraminiferal B/Ca and δ11B for deep ocean carbonate ion and pH reconstructions An evaluation of benthic foraminiferal B/Ca and δ11B for deep ocean carbonate ion and pH reconstructions

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010e%26psl.293..114y&link_type=abstract

Earth and Planetary Science Letters, Volume 293, Issue 1-2, p. 114-120.

Computer Science

5

Scientific paper

Reliable reconstructions of deep ocean carbonate ion concentration, [CO32-], and pH are crucial to understand mechanisms responsible for the past atmospheric CO2 variations observed in ice cores. However, it is challenging to reconstruct past deep water [CO32-] and pH and literature results from different proxies conflict, warranting careful investigations on possible reasons for the existing inconsistencies. Here, we present the first down core B/Ca and δ11B records measured in an epifaunal benthic foraminifer Cibicidoides wuellerstorfi from the Caribbean Sea during the last 160 kyr. The two proxies yield quantitatively comparable deep water [CO32-] and pH results, showing high values during glacials relative to inter-glacials (differences in [CO32-] and pH are ˜ 35 μmol/kg and ˜ 0.15, respectively), consistent with past ocean circulation changes in the Caribbean Sea. Our data provide convincing evidence that both proxies serve as faithful proxies to estimate deep ocean [CO32-] and pH, despite our incomplete understanding of boron incorporation into foraminiferal carbonates.

Affiliated with

Also associated with

No associations

Rating

An evaluation of benthic foraminiferal B/Ca and δ11B for deep ocean carbonate ion and pH reconstructions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with An evaluation of benthic foraminiferal B/Ca and δ11B for deep ocean carbonate ion and pH reconstructions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An evaluation of benthic foraminiferal B/Ca and δ11B for deep ocean carbonate ion and pH reconstructions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1314673