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no edit summary
===Organic Facies D===
===Organic Facies D===
Criteria for this final facies are H/C
Criteria for this final facies are H/C <0.60 and HI <50. This facies contains highly oxidized organic matter, which may represent burnt wood (charcoal), recycled terrestrial material, and thermally postmature constituents. It may include fragments of larger woody components recycled from porous sandy units where oxidation prevailed. This facies is usually encountered in small concentrations and has no hydrocarbon generative capacity.
I
t
occur
s
i
n
progradin
g
sediment
s
associate
d
wit
h
se
a
leve
l
highstand
s
an
d
redeposite
d
sediment
s
o
f
lowstands
.
Organi
c
facie
s
D
i
s
th
e
regionall
y
distribute
d
typ
e
I
V
kerogen
.
I
t
i
s
frequentl
y
foun
d
i
n
fluvia
l
paleoenvironments
,
o
n
offshor
e
toe
s
o
f
deltas
,
an
d
wher
e
organi
c
carbo
n
ha
s
bee
n
recycled
.
Sediment
s
containin
g
thi
s
keroge
n
ca
n
b
e
foun
d
i
n
al
l
system
s
tracts
,
includin
g
th
e
fine-graine
d
part
s
o
f
turbidite
s
i
n
lowstan
d
system
s
tract
s
an
d
th
e
silt
s
an
d
mud
s
o
f
highstan
d
progradin
g
sediments