Chamber-by-Chamber Measurements of Planktonic Foraminiferal Mg, Sr, and Na to Ca Ratios With Femtosecond LA-ICP-MS.

ABSTRACT:

Rationale

Distribution patterns of foraminifera are controlled by environmental parameters such as temperature, salinity, and nutrient concentrations in each water mass. Since trace elements to Ca ratios of marine microfossil calcite test of foraminifera record environmental and ecological habitat information, we used femtosecond (fs) LA-ICP-MS to obtain accurate chamber-by-chamber Mg/Ca, Sr/Ca, and Na/Ca of four foraminifera species to clarify the impact of foraminiferal depth migration on paleoceanographic reconstruction. The Mg/Ca and Sr/Ca ratios were measured with precision better than 5%, fulfilling the accuracy typically required for paleoceanographic reconstructions. We also examined the differences in element ratios due to the pretreatment cleaning methods for extracting a

SUBMITTER: Yoshimura T 

PROVIDER: S-EPMC12816436 | biostudies-literature | 2026 Apr

REPOSITORIES: biostudies-literature