Geoscience Reference
In-Depth Information
Fig. 3.59
Stalagmite 2 in
Snezhanka Cave with
attached geophones (photo
G. Suranyi)
Table 3.3
The parameters of the investigated stalagmites in Snezhanka Cave (Paskaleva et al.
2008
)
H
(cm)
a
g
(m/s
2
)
^D
Average
(D
Min
- D
Max
)
(cm)
Measured
natural
frequency
f
0
(Hz)
Theoretical
natural
frequency
f
0
(Hz)
Elast
modul, E
(GPa)
Density
(g/cm
3
)
Tensile
failure stress
(MPa)
1
2
3
4
5
6
7
8
9
8.6-12.4
9.2
Snezhanka
1
140
complicated
form, middle part
flaring
6.1
5.1
6.240
2.32 + 0.1
5
2.61 + 0.28
10.0-14.0
Snezhanka
2
140
11.3
8.3-13.7
19.9
13.2
6.240
2.32 + 0.15
2.61 ± 0.28
10.0-19.0
Fig. 3.60
Map of Eminova
Cave (after Beron et al.
2006
)
