Geology Reference
In-Depth Information
Table 6.
Calcareous epiphyte productivity values (g m
2
yr
1
and g kg
1
sg
1
yr
1
) of the fi ve
predominant species, averaged from individual quadrat productivity values from each site.
sg = seagrass.
Carbonate
Mean
Std. error
N
Minimum
Maximum
CaCO
3
g m
2
yr
1
P. angustifolia
79.1
10.7
67
6.2
565.1
P. australis
88.6
7.5
75
10.7
424.7
P. sinuosa
106.3
10.6
198
0.7
1227.4
A. antarctica
Blade
202.6
26.9
35
11.1
741.7
Stem
50.4
8.3
35
6.7
218.5
A. griffi thii
Blade
87.6
11.5
82
0.7
593.8
Stem
47.2
3.7
82
3.5
150.5
CaCO
3
g kg
1
sg
1
yr
1
P. angustifolia
325.8
32.5
75
39.24
2367.0
P. australis
354.6
21.3
198
6.9
1726.6
P. sinuosa
718.1
50.4
35
167.29
1294.8
A. antarctica
Blade
718.1
50.4
35
167.29
1294.8
Stem
164.3
13.0
35
64.35
366.4
A. griffi thii
Blade
448.5
35.6
82
27.43
1306.1
Stem
236.8
8.2
81
91.22
435.7
Table 7.
Sediment accumulation in seagrass beds of calcareous epiphytic particles, over a period
of 1000 years. See text for assumptions made to produce these fi gures.
CaCO
3
g m
2
ky
1
CaCO
3
g m
2
ky
1
All localities
SD
West Island
SD
Streaky Bay
23.5
18.6
WI01/01
5.7
4.5
Port Lincoln
5.5
2.1
WI02/99
14.3
7.1
Tumby Bay
16.2
12.6
WI03/00
11.5
7.4
Cape Hardy
9.2
1.9
WI03/01
5.2
2.1
Dutton Bay
1.8
1.0
WI05/19
11.0
5.2
Cowlers Landing
4.7
1.5
WI06/00
3.5
1.4
Whyalla
1.3
0.6
WI09/99
11.6
7.1
Chinaman Ck-1
4.3
2.5
WI09/99
7.8
7.8
Chinaman Ck-2
2.0
1.9
WI10/00
6.5
4.9
Chinaman Ck-3
2.9
1.0
WI11/99
13.2
5.9
Moonta Bay
9.3
3.4
WI03/00deep
10.5
10.3
Stansbury
3.6
1.5
WI05/99deep
3.5
2.0
Tipparra Reef
1.8
0.7
WI06/00deep
7.0
6.7
Port Moorowie
8.6
4.3
WI11/99deep
4.4
4.9
Ardrossan
16.2
7.2
Semaphore
2.1
0.9
Torrens
1.8
0.6
Marino Rock
2.5
1.4
Normanville
18.6
6.7
Cape Jaffa
7.0
4.5
Kingston
4.4
2.2
from New South Wales and Western Australia are
used. The range is 1.8-24.0 cm kyr
1
.
several important conclusions that can be drawn
from this study.
The temperate water marine grass carbonate
factory
IMPLICATIONS FOR THE COOL-WATER
CARBONATE DEPOSITIONAL SYSTEM
Sediment production
Even though the sediments directly associated
with the grass beds were not analysed, there are
Two types of sediment are produced by seagrass
epiphytes in south Australia, carbonate mud from
