The Kerogen reference article from the English Wikipedia on 24-Apr-2004
(provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Kerogen

Have you considered sponsoring a child
Kerogens are chemical compounds formed by the low-grade metamorphism (i.e. diagenesis) of organic molecules derived from decaying plant and animal matter.

Kerogens are the precursors to hydrocarbons (fossil fuels). Labile kerogen breaks down to form heavy hydrocarbons (i.e. oils), refractory kerogen breaks down to form light hydrocarbons (i.e. gases) and inert kerogen forms graphite.


See also: petroleum geology.