210Pb chronology and trace metal geochemistry at Los Tuxtlas, Mexico, as evidenced by a sedimentary record from the Lago Verde crater lake
Abstract
Vol. 25 (Suppl.) 2006 CHINESE JOURNAL GEOCHEMISTRY 17 larger value of 1.033 instead of 1.0194. Oi (2000, 2001) calculated a value of 1.0260 by using ab initio quantum chemistry calculations on gas-phase B(OH)3 and B(OH)4. Meanwhile, to explain these offsets, some other efforts also have been made on this issue, such as considering vital effects for different foraminifers or corals with different living microenvironments (e.g. Sanyal et al. 2001; Hrnisch et al. 2003, 2004; Zeebe et al. 2003)....