Fig 2.
Settlement tiles from control sites (a, b and c) and volcanic CO2 seep sites (d, e and f) in Papua New Guinea after 13 months deployment. Tiles in situ (a and d), upper sides (b and e), and lower sides (c and f).
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.