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.
GeoB 13501 activity rates (at 42.5, 105.5, 201.5, 301.5, 401.5, 501.5, 601.5, 701.5, 801.5 cm) and detailed lithological features (L*, Ca, Fe, Mn, and Ca/Al). GeoB 13501 presents several sand layers (yellow lines) and two clay-rich layers (gray lines). Mn micronodules occur at the Mn peaks.
