222
Chapter 5 Oceanic Sediments
a
PREDOMINANTLY SIUCICLASTIC SANDY TURBIDITES
DISTAL
BASE OF SLOPE)
(BASIN PLAIN, LOWER FAN LOBE)
!: ANOXIC
OXIC
OXIC DEEP WATER,
TM
TS
TM
T
em
1
TM
TS
PE
b
DEEP WATER
DEEP WATER,
ABOVE CCD, REDEL
BELOW CCD
POSITED ORGANIC
MATIER
S
bi
TM
bi
TM
MF
Im
TM
eb
TS
eb
gr
TS
TM
OM
PE
Im
PE
gm
Im
TM
Im
TS
eb
TS
MF
TI:"m
PE
5-10
em ,;._ _
Im,gm
A
L
A
R
L
A
1 .,/'
I
\
LUTITE ARENITE RUDITE
OVERBANK
DEPOSITS
L
A
GRADED CALCARENITES CALLODAPIC UMESTONES)
l AND ASSOCIATED CARBONAtE SEDIMENTS OF SLOPES)
DISTAL
~-- -- -- ---- ---- .------- PROXIMAj..
SL
TS
TS
TS
PE
DF
m
1
(UPPER SLOPE, PLATFORM MARGIN)
FREQUENTLY
EROSION
st·ig I TRACTION
COARSE SHELLS
\
/'
\,
Jtt/
REEF TALUS
CHERT(BANDS
OR NODULES)
I
~
FINE-GRAINED
CARBONATE TURBIDITE
(MUD TURBIDITE TM)
bi
PE
T
gm LlME OOZE
OR MARL
1·5
:!: PLANT
em
Im REMAINS
l jE.ULr-rL A R
/'
I
"
LUTITE ARENITE RUDITE
ANO TRACTION CARPET)
AND CLASTS
-V
\
MIXED SEQUENCE
IDEAL, COMPLETE
\.
CARBONATE TURBIDITE \
r.: '.;>,'''~'''' ",,,,;...-- LlME SAND, :!: CROSSBRECCIA
BEDDED
,
PE
\ , TS ~~~
(REEF DETRITUS
LlTHIFIED CARBONATE)
TS
T
gr I!: SHELLS
AND SHELL
FRAGMENTS,
0,2-1
CL ASTS )
m
1
L
A
R
~
PE
1
1-10
m
1
TS, GRADED
CALCARENITE
SLUMP IHEMIPELAGIC SLOPE
CARBONATES)
~""~--TM + CHERT
R
gr
WATER
ESCAPE
STRUCT.
. ig
eb
Is
gr,mv
sI
ig
R
Fig. 5.16. a Proximal-distal trends in vertica1 successions of mass flow deposits and turbidites altemating
with hemipe1agic beds. The 1atter may be deposited
be10w the CCD (- carb free of carbonate) or under
anoxic conditions (black). Converse1y, mud
turbidites can be rich in organic matter (GM). Thinbedded turbidites occur in overbank deposits of midfan regions and in more distal areas (cf. Fig. 5.18).
Note the different vertica1 sca1es. b Proximal and
distal carbonate turbidites associated with p1atform
margins and slope sediments; various vertica1 sca1es.
(After Meischner 1964; Scholle et al. 1983a;
McIlreath and James 1984)
Chapter 5 Oceanic Sediments
a
PREDOMINANTLY SIUCICLASTIC SANDY TURBIDITES
DISTAL
BASE OF SLOPE)
(BASIN PLAIN, LOWER FAN LOBE)
!: ANOXIC
OXIC
OXIC DEEP WATER,
TM
TS
TM
T
em
1
TM
TS
PE
b
DEEP WATER
DEEP WATER,
ABOVE CCD, REDEL
BELOW CCD
POSITED ORGANIC
MATIER
S
bi
TM
bi
TM
MF
Im
TM
eb
TS
eb
gr
TS
TM
OM
PE
Im
PE
gm
Im
TM
Im
TS
eb
TS
MF
TI:"m
PE
5-10
em ,;._ _
Im,gm
A
L
A
R
L
A
1 .,/'
I
\
LUTITE ARENITE RUDITE
OVERBANK
DEPOSITS
L
A
GRADED CALCARENITES CALLODAPIC UMESTONES)
l AND ASSOCIATED CARBONAtE SEDIMENTS OF SLOPES)
DISTAL
~-- -- -- ---- ---- .------- PROXIMAj..
SL
TS
TS
TS
PE
DF
m
1
(UPPER SLOPE, PLATFORM MARGIN)
FREQUENTLY
EROSION
st·ig I TRACTION
COARSE SHELLS
\
/'
\,
Jtt/
REEF TALUS
CHERT(BANDS
OR NODULES)
I
~
FINE-GRAINED
CARBONATE TURBIDITE
(MUD TURBIDITE TM)
bi
PE
T
gm LlME OOZE
OR MARL
1·5
:!: PLANT
em
Im REMAINS
l jE.ULr-rL A R
/'
I
"
LUTITE ARENITE RUDITE
ANO TRACTION CARPET)
AND CLASTS
-V
\
MIXED SEQUENCE
IDEAL, COMPLETE
\.
CARBONATE TURBIDITE \
r.: '.;>,'''~'''' ",,,,;...-- LlME SAND, :!: CROSSBRECCIA
BEDDED
,
PE
\ , TS ~~~
(REEF DETRITUS
LlTHIFIED CARBONATE)
TS
T
gr I!: SHELLS
AND SHELL
FRAGMENTS,
0,2-1
CL ASTS )
m
1
L
A
R
~
PE
1
1-10
m
1
TS, GRADED
CALCARENITE
SLUMP IHEMIPELAGIC SLOPE
CARBONATES)
~""~--TM + CHERT
R
gr
WATER
ESCAPE
STRUCT.
. ig
eb
Is
gr,mv
sI
ig
R
Fig. 5.16. a Proximal-distal trends in vertica1 successions of mass flow deposits and turbidites altemating
with hemipe1agic beds. The 1atter may be deposited
be10w the CCD (- carb free of carbonate) or under
anoxic conditions (black). Converse1y, mud
turbidites can be rich in organic matter (GM). Thinbedded turbidites occur in overbank deposits of midfan regions and in more distal areas (cf. Fig. 5.18).
Note the different vertica1 sca1es. b Proximal and
distal carbonate turbidites associated with p1atform
margins and slope sediments; various vertica1 sca1es.
(After Meischner 1964; Scholle et al. 1983a;
McIlreath and James 1984)