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High-energy seismic events in Legnica–Głogów Copper District in light of ASG-EUPOS data

Zbigniew Szczerbowski
Zbigniew Szczerbowski
   | May 17, 2019
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Article Category: Original article
Published Online: May 17, 2019
Page range: 25 - 40
Received: Dec 05, 2018
Accepted: Apr 11, 2019
DOI: https://doi.org/10.2478/rgg-2019-0004
© 2019 Zbigniew Szczerbowski, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Figure 1

Geological map of the study (according to Dadlez et al. (2000)) and location of the LEGN and GLOG stations
Geological map of the study (according to Dadlez et al. (2000)) and location of the LEGN and GLOG stations

Figure 2

Temporal distribution of N and E components evaluated in the GLOG station
Temporal distribution of N and E components evaluated in the GLOG station

Figure 3

Temporal distribution of N and E components evaluated in the LEGN station
Temporal distribution of N and E components evaluated in the LEGN station

Figure 4

Temporal variation of apparent strain evaluated for the base LEGN-GLOG
Temporal variation of apparent strain evaluated for the base LEGN-GLOG

Figure 5

Temporal variation of apparent strain evaluated for the base GLOG-ZARY
Temporal variation of apparent strain evaluated for the base GLOG-ZARY

Figure 6

Temporal variation of apparent strain evaluated for the base GLOG-LESZ
Temporal variation of apparent strain evaluated for the base GLOG-LESZ

Figure 7

Temporal variation of apparent strain evaluated for the base GLOG-WROC
Temporal variation of apparent strain evaluated for the base GLOG-WROC

Figure 8

Temporal variation of apparent strain evaluated for the base LEGN-WROC
Temporal variation of apparent strain evaluated for the base LEGN-WROC

Figure 9

Approximation of LEGN-GLOG apparent strain variation by sine function (dashed line)
Approximation of LEGN-GLOG apparent strain variation by sine function (dashed line)

Figure 10

Approximation of apparent strain variation by multi-peak Gaussian for positive and negative peaks separately
Approximation of apparent strain variation by multi-peak Gaussian for positive and negative peaks separately

Figure 11

Frequency distribution of large seismic events in LGCD (ML > 4) in time intervals referenced to approximated Xc evaluated for positive peaks
Frequency distribution of large seismic events in LGCD (ML > 4) in time intervals referenced to approximated Xc evaluated for positive peaks

Figure 12

Frequency distribution of large seismic events in LGCD (ML > 4) in time intervals referenced to approximated Xc evaluated for negative peaks
Frequency distribution of large seismic events in LGCD (ML > 4) in time intervals referenced to approximated Xc evaluated for negative peaks

Figure 13

Frequency distribution of very large seismic events in LGCD ML > 4.3) in time intervals referenced to approximated Xc evaluated for positive peaks
Frequency distribution of very large seismic events in LGCD ML > 4.3) in time intervals referenced to approximated Xc evaluated for positive peaks

Figure 14

Frequency distribution of very large seismic events in LGCD (ML > 4.3) in time intervals referenced to approximated Xc evaluated for negative peaks
Frequency distribution of very large seismic events in LGCD (ML > 4.3) in time intervals referenced to approximated Xc evaluated for negative peaks

Figure 15

Modelled negative and positive peaks approximating apparent strain of the LEGN-GLOG base and velocity of the apparent strain rates’ variations. Small stars: occurrence of seismic events with magnitude ML > 4.0 and big ones with magnitude over 4.3. Distinctive periods: ts – period of maximal values of apparent strain rates, tvs – period of maximal values of strain rates velocities.
Modelled negative and positive peaks approximating apparent strain of the LEGN-GLOG base and velocity of the apparent strain rates’ variations. Small stars: occurrence of seismic events with magnitude ML > 4.0 and big ones with magnitude over 4.3. Distinctive periods: ts – period of maximal values of apparent strain rates, tvs – period of maximal values of strain rates velocities.

Evaluated parameters of Gaussian peak and the values are expressed in mm/m for positive and negative peaks

Positive peaksNegative peaks
ParameterParameter successive of peakValue of parameterStandard error on parameter value [±]Parameter of successive peakValue of parameterStandard error on parameter value [±]
Area under the curveA11.00E-058.7E-07A1-2.00E-052.5E-06
A26.32E-063.8E-07A2-2.00E-051.3E-06
A38.69E-065.2E-07A3-2.00E-052.2E-06
A41.00E-056.2E-07A4-2.00E-051.7E-06
A51.00E-055.7E-07A5-3.00E-052.3E-06
A62.94E-063.0E-07A6-2.00E-052.4E-06
Variance parameterσ1132.668.8σ1214.578.8
σ276.454.7σ2158.534.7
σ3122.527.3σ3200.567.3
σ4156.238.1σ4168.708.1
σ5142.207.6σ5208.567.6
σ651.885.5σ6180.745.5
Location parameter (centre of the peak)Xc139649.704.2Xc139857.793.4
Xc240053.372.2Xc240196.022.8
Xc340362.523.3Xc340538.982.9
Xc440738.033.7Xc440917.272.7
Xc541093.743.4Xc541300.573.8
Xc641489.722.6Xc641619.097.2
Baseline offsety0-5.439E-081.0542E-09y02.74E-084.987E-09
Peak height HH18.4E-083.8E-07H12.7E-092.5E-06
H28.7E-085.2E-07H25.6E-091.3E-06
H38.3E-086.2E-07H38.8E-102.2E-06
H48.0E-085.7E-07H4-1.9E-091.7E-06
H58.2E-083.0E-07H56.5E-102.3E-06
H67.7E-088.8E+00H6-4.8E-092.4E-06
eISSN:
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Computer Sciences, other, Geosciences, Geodesy, Cartography and Photogrammetry
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