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

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Depth (cm)

Depth (cm)

0

60

50

40

30

20

10

80

70

100

90

0

6

5

4

3

2

1

gp

PAV08

s

s

zoom

PAV08

E4

E4

E1

E6

E6

cal BP

cal AD

a

b AD 2008

1400 1200 1000 800 600 400 200 0

600 800 1000 1200 1400 1600 1800 2000

Erosive layer

Pavin crater material

Leaves debris

In-situ laminated unit

Reworked material

Basement

Lithological facies Sedimentary units

Massive dark brownish facies

Massive yellowish facies

Laminated brownish facies

Fine and coarse sands

(^14) C age
(^14) C age rejected
Linear interpolation with
95% confidence intervals
Calibrated age
Age-depth model

• 
  

• 
  

Max

Min

First derivative

spectra values

130012001100

Cal BP

BP 1290 +/- 35

probability

95%

PAV08

140013001200

Cal BP

BP 1430 +/- 21

probability

95%

PAV08

10 20 30 40 50

L* (SI)

b* (SI)

0205 10 15

d405 d695

Spectral map

0205 10 15

TOC (%)

0 200 400 600

d445d525

800

HI (mg HC/g TOC)

OI (mg CO2/ g TOC)

Fig. 23.4 Multi-proxies analyses on core PAV08 ( a ) and associated
age-depth model of the upper unit ( b ) with calibration results with
IntCal13 (Reimer et al. 2013 ). For continuous measurements, thick and

dashed lines represent respectively a moving average and the mean.

Sedimentary events E1, E4 and E6 discussed in the text are highlighted

by grey bars

L. Chassiot et al.