The crustal stress field of Germany: a refined prediction

Geothermal Energy

Science – Society – Technology

Table 1 Overview of all units defined in the model and parameters used

Layer ID	Name	Density (kg/m³)	Young’s modulus (GPa)	Poisson’s ration (−)	Friction angle (°)	Cohesion (MPa)	Tensile strength (MPa)
2	Relict elements	2400^a	15^b	0.29^b	38^b	10^b	5
3	Sediments outside 3DD	2700	30	0.25	38^b	10^b	5
4	Cenozoic volcanics	2860^a	54^c	0.25^c	50ⁱ	39ⁱ	5
5	Cenozoic sediments of the NGB	2480^a	15^b	0.29^b	38^b	10^b	5
6	Cenozoic sediments of the URG	2300^a	15^b	0.29^b	38^b	10^b	5
7	Cenozoic sediments of the Molasse Basin	2350^a	15^b	0.29^b	38^b	10^b	5
8	Folded Molasse	2400^a	15^b	0.29^b	38^b	10^b	5
9	Thrusted units of the Alps	2700^a	23^c	0.25^c	40	25	5
10	Cretaceous	2590^a	20^c	0.25^c	40^j	18^j	7^k
11	Jurassic	2600^a	20^c	0.26^c	36^b,j	15^b,j	5
12	Triassic	2650^a	28^c	0.25^c	36^b,j	31^b,j	5
13	Zechstein salt	2100^a	25^g	0.27^g	–	–	–
14	Zechstein carbonates	2400^a	30^c	0.25^c	50ⁱ	18ⁱ	5
15	Rotliegend sediments	2600^a	15^c	0.19^c	43^l,m	25^l,m	5^l,m
16	Rotliegend volcanics	2650^a	26^c	0.25^c	40^l	57^l	15^l
17	Pre-Permian	2670^a	40^c	0.25^h	40^l,n	15^l,n	5^l,n
18	Upper crust ALCAPA	2750^d	70^h	0.25^h	40^b,c	30^b,c	5
19	Upper crust ATA	2790^e	70^h	0.25^h	40^b,c	30^b,c	5
20	Upper crust AV	2820^d	70^h	0.25^h	40^b,c	30^b,c	5
21	Upper crust EEC	2810^d	70^h	0.25^h	40^b,c	30^b,c	5
22	Lower crust	3000^d,e	80^h	0.25^h	40^b,c	30^b,c	5
1	Lithospheric mantle	3300^e,f	130	0.25^h	40^b,c	30^b,c	5

For abbreviations, see Fig. 2. Further detailed information on the individual units can be found in Anikiev et al. (2019) and Ahlers et al. (2021a)
^aAnikiev et al. (2019), ^bHergert et al. (2015), ^cBär et al. (2020), ^dMaystrenko and Scheck-Wenderoth (2013), ^eTašárová et al. (2016), ^fPrzybycin et al. (2015), ^gWenting et al. (2017), ^hTurcotte and Schubert (2014), ⁱZoback (2007), ^jReyer (2013), ^kDubelaar and Nijland (2016), ^lAlber et al. (2015), ^mStöckhert et al. (2013), ⁿAlber and Solibida (2017)