-
Steranes constitute a
group of
alkane organic compounds with a cyclopentane-fused
hydrogenated phenanthrene structure as the
parent nucleus, and they derived...
-
basin dating back
perhaps to 1.6 to 1.7
billion years ago. The
presence of
steranes, eukaryotic-specific biomarkers, in
Australian shales previously indicated...
-
Their presence has been
indirectly detected by
fossilized steroids,
called steranes,
hydrocarbon markers characteristic of the cell
membranes of the sponges...
- 0]decane)
Polycycloalkanes Adamantane Diamondoid Perhydrophenanthrene Sterane Cubane Prismane Dodecahedrane Basketane Churchane Pagodane Twistane Other...
- and
steranes that are
thought to be
derived from
cyanobacteria and eukaryotes, respectively, were
found in the
Pilbara of
Western Australia.
Steranes are...
-
aromatic hydrocarbons, hopanes,
steranes, and
specific nitroarenes (e.g. 1-nitropyrene). The
ratio of
hopanes and
steranes to
elemental carbon can be used...
-
forms do exist, such as the
sterane campestane (24R-methylcholestane).
Along with
cholestane and stigmastane, this
sterane is used as a
biomarker for early...
- 24-n-Propylcholestane is a
sterane,
which are
derived from
sterols after being buried in the sediment.
Sterols turn into
steranes by
saturating the sterol's...
- C26
steranes are
present in
samples in much
lower quantities,
generally a
magnitude lower, as
compared to more
common C27, C28, and C29
steranes. Instead...
- 0]decane)
Polycycloalkanes Adamantane Diamondoid Perhydrophenanthrene Sterane Cubane Prismane Dodecahedrane Basketane Churchane Pagodane Twistane Other...
