Lake Pavin History, geology, biogeochemistry, and sedimentology of a deep meromictic maar lake

385

0

9

14

13

12

11

10

8

7

6

5

4

3

2

1

Depth (m)

0

6

5

4

3

2

1

Depth (m)

0

60

50

40

30

20

10

Depth (cm)

80

70

460

480

470

450

440

Depth (cm)

s

sg

sg

sg

sg

PAV99 PAV12 PAV09-B1

s

PAV08 PAV10-E PAV09-C5

s

BASIN

PLATEAU LITTORAL

110

100

90

Depth (cm)

1

2

4

6

7a-b

9

12

11

10a-b

13

15 16

18

19

(^20) 22a-b 21
35
34
33
32
31
30a-b
29
28
27
2625
23a-b
17a-b
3
24a-b
sgp
s
5
8
14
Laminated brownish facies
Deformed laminated facies
Massive dark brownish facies
Massive greenish facies
Laminated grey facies
Massive grey facies
Erosive layer
Pavin crater material
Massive brownish facies
Leaf debris
Fine and coarse sands
Gravels and pebbles
Normal graded bedding
Hiatus
In-situ laminated unit
Reworked material
Plant material
Bulk sediment
Basement
In-situ massive unit
sgps : sand - g : gravel - p : pebble
Sandy silts
Massive yellowish facies
Grain-size
Chronology
Lithological facies
Sedimentary units
Fig. 23.2 Synthetic illustration of lithological logs of key sediment
cores from Lake Pavin retrieved in the deep central basin (PAV99,
PAV12, PAV09-B1), the plateau (PAV08) and littoral environments
(PAV10-E and PAV09C5). The location and code of radiocarbon sam-
ples (bulk sediment or plant material) detailed in Table 23.1 are also
indicated
23 Pavin Paleolimnology
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