Geology Reference
In-Depth Information
Table 3.1
Primary constituents of the pyrolysates and TMAH-pyrolysates of fossil leaves from Ardèche diatomite
Pyrolysis-GC-MS
a
TMAH-py-GC-MS
Benzene +
derivatives
Lignin
moieties
n
-alkane/alkene
doublet range
Most abundant
alkane
FAME
range
b
Fossil leaves sp. 1
Pristenes
Tocopherol
C
16
FA
FAMEs
Quercuspalaeocerris
+
a
+
+
−
10-31
29
+
+
28-32
Quercussuber
+
+
+
−
10-31
29
+
+
N.d.
Quercussp
+
+
+
−
10-31
29
−
+
28-32
Quercushispanica
+
+
+
+
8-31
29, 31
+
+
30
Pinussp
+
+
+
+
10-31
31
+
+
30
Populus alba
+
−
+
+
9-31
29
−
+
28-32
Acer pseudocampestre
+
+
+
−
10-32
29
+
+
N.d.
Vitisteutonica
+
+
+
−
9-31
29
+
+
26-32
Castaneavesca
+
+
+
−
10-30
29
+
+
28-32
Tiliasp
+
+
+
+
10-33
29
−
+
28-34
Matrix
−
−
−
−
−
−
−
−
−
a
Presence or absence of specifi c pyrolysis products are indicated by a (+) or (−), respectively
b
Note that all TMAH pyrolysates contain a predominance of C
16
and C
18
FAME along with various other low-molecular-weight components; shown in this
column is solely the range of the high-molecular-weight FAMEs (all with a strong even-over-odd predominance)
Search WWH ::
Custom Search