Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Concentration profiles of pore water sulfate (A) and extractable sulfide minerals (B) with depth for Stege Marsh sampling sites. x axis uncertainties represent 2 standard deviations from the mean and estimated weighing precisions for sulfate and sulfides, respectively. y axis uncertainties reflect scales of homogenization of samples obtained from sediment coring.
