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Geothermal Energy

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Table 1 The thermal and hydraulical properties prescribed to the layers of the numerical model

From: The origin of deep geothermal anomalies in the German Molasse Basin: results from 3D numerical models of coupled fluid flow and heat transport

Layer

Dominant lithology

Ref

Porosity (–)

Ref

Hydraulic conductivity (m/s)

Ref

Heat capacity [MJ/(kg K)]

Ref

Thermal conductivity [W/(mK)]

Ref

Radiogenic heat production (W/cbm)

Ref

1–6

Folded Molasse

conglomerate, sand, silt, clay

8

0.029

1

2.00E−08

4

2.5

1

2.1

2

1.45E−06

1

7–13

Foreland Molasse

conglomerate, sand, silt, clay

8

0.029

1

2.00E−07

4

2.5

1

2.1

2

1.45E−06

1

14

Cretaceous

claystone, limestone

8

0.029

1

5.00E−05

4

2.5

1

2.8

1

1.50E−06

1

15

Purbeck

limestone, claystone

8

0.060

2

1.00E−06

1

2.3

1

2.7

1

1.50E−06

1

16

Malm Zeta (Massen)

limestone, dolomite

8

0.075

2

Variable

5

2.3

1

2.6

3

1.50E−06

1

Malm Zeta (Schicht)

limestone, dolomite

8

0.035

3

Variable

5

2.3

1

2.6

3

1.50E−06

1

17

Malm Epsilon (Massen)

limestone, dolomite

8

0.075

2

Variable

5

2.3

1

2.6

3

1.50E−06

1

Malm Epsilon (Schicht)

limestone, dolomite

8

0.035

3

Variable

5

2.3

1

2.6

3

1.50E−06

1

18

Malm Delta (Massen)

limestone, dolomite

8

0.075

2

Variable

5

2.3

1

2.6

3

1.50E−06

1

Malm Delta (Schicht)

limestone, dolomite

8

0.035

3

Variable

5

2.3

1

2.6

3

1.50E−06

1

19

Malm Gamma (Massen)

limestone, dolomite

8

0.051

1

Variable

5

2.3

1

2.2

1

1.50E−06

1

Malm Gamma (Schicht)

limestone, dolomite

8

0.035

3

Variable

5

2.3

1

2.2

1

1.50E−06

1

20

Malm Beta (Massen)

limestone, dolomite

8

0.051

1

1.00E−09

6

2.3

1

2.2

1

1.55E−06

1

Malm Beta (Schicht)

limestone, dolomite

8

0.035

3

1.00E−09

6

2.3

1

2.2

1

1.55E−06

1

21

Malm Alpha (Massen)

limestone, dolomite, claystone

8

0.051

1

1.00E−09

6

2.3

1

2.2

1

1.55E−06

1

Malm Alpha (Schicht)

limestone, dolomite, claystone

8

0.035

3

1.00E−09

6

2.3

1

1.9

3

1.55E−06

1

Helvetic

limestone, dolomite, claystone

8

0.035

3

1.00E−09

1

2.3

1

1.9

3

1.55E−06

1

22–23

PreMalm

claystone, sandstone, marl

8

0.051

1

5.00E−06

4

2.3

1

2.2

1

1.55E−06

1

24–26

Crystalline crust

granite/granodiorit

9

1.0E−09

9

1.00E−21

4

3.2

1

3.1

1

1.50E−06

7

Faults

  

0.200

10; 1

5.00E−05

10; 1

2.6

10; 1

2.6

10; 1

  
  1. The influence of each property on the predicted thermal field has been tested systematically
  2. References: (1) Schulz and Thomas (2012), (2) Koch et al. (2009), (3) Homuth et al. (2014), (4) StMWIT (2010), (5) Birner (2013), (6) Birner et al. (2009), (7) Noack et al. (2013), (8) Freudenberger and Schwerd (1996), (9) Scheck (1997), (10) Cherubini et al. (2014)
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