Table of
<ol>
<li>IZ
<li>GEOSECS $@ SiO sub 3$ 25
</ol>
<a href="http://iridl.ldeo.columbia.edu/SOURCES/.GEOSECS/ISTA+25+VALUE/SIO3/" >Additional Information</a><p><table border>
<tr><th>IZ</th><th>$@ SiO sub 3$</th></tr>
<tr><th></th><th>micromole/kg</th></tr>
</table>