Table T1. Analytical results of an in-house Composite Standard, Site 1098. Standard was included in all sample runs.

Table T1. Analytical results of an in-house Composite Standard, Site 1098. Standard was included in all sample runs.


Dissolution reagent	Digestion time (hr)	Avg. SiO_{2 biogenous}(wt%)	Standard deviation	n
2-M Na₂CO₃¹	8.5-9	31.6	1.6	25
2-M KOH	9	31.4	1.4	14
2-M Na₂CO₃²	5	23	2	48

Note: 1 = this study, 2 = Anderson and Ravelo, 2001.