530
Chapter 11 Sediment Supply, Subsidence, and Basin Fill
a
b
MEAN RATES OF DENUDATION (past 20 Ma)
MECHANICAL O.
ENTIRE
11
CHEMICAl D.
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BENGAl FAN
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f GRAIN SIZE PARTITIONING
S F
10 90
S
F
50 50
S
F
85 15
SILT &
CLAY
SAND &
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B. FAN
B. BASIN
FOREHIMAl.
& DELTA
DEEP
RIVERS
MASS BALANCE
OF EROSION
AND DEPOSITION
PENINSUlAR
INOIA
E
OISSOlVED
(FROM HIMAlAYAS)
TO
INOUS SYSTEM
(5 10 0 Ma )
B = O.B
HIMALA YAS, ERODED ROCKS
(in the past 20 Mal
A = 20.4
SUBHIMALAYAN
FOAEDEEP 3.3
2.5
1.2
'.7
==:> SOLIDS
MASSES TO BE COMPARED
~
OISSOLVEO
ALL VALUES INDICATE x 10'5 t (METRIC TONS)
ERODED IN THE HIMALAYAS (A - BI:
19. 6
ACCUMULATED IN BASINS (TOTAL + G - C - F: 20.6
km
e