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.
Abiotic and biotic parameters of Witpan (turquoise) and the Omongwa pan (purple) with depth. (A) Total organic carbon (TOC), (B) chloride, (C) sulfate, (D) nitrate, (E) water content, (F) acetate, and (G) formate [(B–D,F,G) were obtained from sample leaching]. Note different x-scales.
