Auxiliary Material for Paper 2011GC003691

Changes in micronutrient supply to the surface
Southern Ocean (Atlantic Sector) across the glacial termination

Katharine R. Hendry
Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, USA
School of Earth and Ocean Sciences, Cardiff University, Cardiff, UK

Rosalind E. M. Rickaby
Department of Earth Sciences, University of Oxford, Oxford, UK

Claire S. Allen
British Antarctic Survey, Cambridge, UK


Allen, C. S., K. R. Hendry, and R. E. M. Rickaby (2011), Changes in micronutrient supply to the surface
Southern Ocean (Atlantic sector) across the glacial termination, Geochem. Geophys. Geosyst., 12, Q09007, doi:10.1029/2011GC003691.

Introduction

This auxiliary material contains a text file, two tables and a figure.
The text file details the method for cleaning opal samples after heavy liquid separation.
The opal samples were cleaned using a stepwise series of reductive and oxidative reagents.
These steps were carried out before dissolution and analysis. Table S1 displays the (Zn/Si)opal
results for cores KC081 and PC034 (ug/g and umol/mol respectively). Numbers in parentheses
are 1sd. Data labeled “a” are from Ellwood & Hunter (2000b).Table S2 displays the age models
for the cores in the manuscript. Details are given for A) Radiocarbon (Antarctic marine reservoir
after Berkman & Forman (1996); reservoir age = 1300 years) and B) magnetic and biostratigraphic constraints
on age models of cores KC081 and PC034 (Allen et al., 2011). Figure S1 shows a comparison between
the (Zn/Si)opal results of this study and Ellwood and Hunter (2000b). For location of cores see Figure 1,
main text. The crosses show the radiocarbon tie points for KC081 (Allen et al., 2011). See main text for references.

References:
Allen, C. S., Pike, J., Pudsey, C. J., and Leventer, A., 2005. Submillenial variations in ocean conditions during deglaciation based on diatom assemblages from the southwest Atlantic. Paleoceanography 20, doi:10.1029/2004PA001055.
Berkman, P.A., and Forman, S.L., 1996. Pre-bomb radiocarbon and the reservoir correction for
calcareous marine species in the Southern Ocean. Geophysical Research Letters, 23 (4), 363-
366. 

1. 2011gc003691-txts01.txt 
Text S1. Method for cleaning opal samples after heavy liquid separation.

2. 2011gc003691-ts01.txt 
Table S1. (Zn/Si)opal results for cores KC081 and PC034 (ug/g and umol/mol 
respectively).  Numbers in parentheses are 1sd. aData from Ellwood & Hunter 
(2000b).

3. 2011gc003691-ts02.txt 
Table S2. A) Radiocarbon and B) magnetic and biostratigraphic constraints on age 
models of cores KC081 and PC034 (deltaR = 1300 years).

4. 2011gc003691-fs01.jpg
Figure S1. A comparison between the (Zn/Si)opal results of this study and 
Ellwood and Hunter (2000b). For location of cores see Figure 1, main text.  The 
crosses show the radiocarbon tie points for KC081 (Allen et al., 2011).  See 
main text for references.