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.
A bimodal peaks n-alkane envelope of sample Ar-149 maximizing at nC16 and nC29 typical of source rock whose organic matters have been derived from a variable mixture of algal and terrigenous higher plant materials. Note 13,15, e.t.c represent the n-alkane carbon numbers and Pr; Pristane, and Ph; Phytane.
