Earthquakes and Volcanoes
... waves. Seismic waves originate where rocks first move along the fault, at a location inside Earth called the focus. Earthquakes can occur anywhere between Earth’s surface and depths greater than 600 km. In a news report, you might hear a reporter identify the earthquake’s epicenter. The epicenter is ...
... waves. Seismic waves originate where rocks first move along the fault, at a location inside Earth called the focus. Earthquakes can occur anywhere between Earth’s surface and depths greater than 600 km. In a news report, you might hear a reporter identify the earthquake’s epicenter. The epicenter is ...
A crustal model of the ultrahigh-pressure Dabie Shan orogenic belt
... Figure 3. (top) Trace-normalized low-pass filter (10 Hz) record section of shot point ZhM. For this and all other record section the travel time curves are theoretical curves calculated from the final velocity model. Shot point locations are shown in Figure 2. The dominant phases on the section are ...
... Figure 3. (top) Trace-normalized low-pass filter (10 Hz) record section of shot point ZhM. For this and all other record section the travel time curves are theoretical curves calculated from the final velocity model. Shot point locations are shown in Figure 2. The dominant phases on the section are ...
Isostasy and structure of the lower crust and upper mantle in the
... their outcrop areas in the northwest part of the State are shown in Figure 1 of Drummond (1981, this issue). Following Gee (1979b), a 'block' is taken as the exposed part of a stabilised 'craton'. Brief sum• maries of the geology are given by Drummond (1979c, 1981) and comprehensive descriptions can ...
... their outcrop areas in the northwest part of the State are shown in Figure 1 of Drummond (1981, this issue). Following Gee (1979b), a 'block' is taken as the exposed part of a stabilised 'craton'. Brief sum• maries of the geology are given by Drummond (1979c, 1981) and comprehensive descriptions can ...
measured and predicted seismic response of two similar buildings
... element models are developed and calibrated using seismic signals of input and response, recorded on the two buildings in August 2006. One building was constructed on a traditional rigid foundation and the other was isolated with a Base Control System (BCS). These numerical models are used to carry ...
... element models are developed and calibrated using seismic signals of input and response, recorded on the two buildings in August 2006. One building was constructed on a traditional rigid foundation and the other was isolated with a Base Control System (BCS). These numerical models are used to carry ...
Crustal structure across the post-spreading - Archimer
... time in the next inversion step. Travel times of Pg1, Pg2, PmP and Pn phases are used to obtain the crustal velocity distribution and the Moho geometry. The travel time residuals numbers of picks and normalized χ2 values for each seismic phase are summarized in Table 1. Travel time uncertainties are ...
... time in the next inversion step. Travel times of Pg1, Pg2, PmP and Pn phases are used to obtain the crustal velocity distribution and the Moho geometry. The travel time residuals numbers of picks and normalized χ2 values for each seismic phase are summarized in Table 1. Travel time uncertainties are ...
Magnetotelluric studies in the Market Weighton area of eastern
... criteria for data selection at this stage was the smoothness of the rotated apparent resistivity and phase curves and the consistency of the results over all sections. Those sections having apparent resistivity and phase curves consistently smooth were selected, otherwise they were rejected. In gene ...
... criteria for data selection at this stage was the smoothness of the rotated apparent resistivity and phase curves and the consistency of the results over all sections. Those sections having apparent resistivity and phase curves consistently smooth were selected, otherwise they were rejected. In gene ...
High-resolution estimates of lithospheric thickness from Missouri to
... (MOMA) [6,7,13]. In this time period seven earthquakes within the North American plate were recorded that had magnitudes large enough (5.6 6 Mw 6 7.3) to yield a good signal to noise ratio in the MOMA seismograms. The S and surface waves in these seismograms are sensitive to lithospheric structure a ...
... (MOMA) [6,7,13]. In this time period seven earthquakes within the North American plate were recorded that had magnitudes large enough (5.6 6 Mw 6 7.3) to yield a good signal to noise ratio in the MOMA seismograms. The S and surface waves in these seismograms are sensitive to lithospheric structure a ...
Seismic Strengthening of Masonry Buildings
... masonry building from the early XXth century, situated in Lisbon. Then, it was analyzed its structural strengthening with reinforced concrete walls, with a base-isolated solution and with the application of viscous dampers [2]. In the present work, in order to perform a deep analysis of the building ...
... masonry building from the early XXth century, situated in Lisbon. Then, it was analyzed its structural strengthening with reinforced concrete walls, with a base-isolated solution and with the application of viscous dampers [2]. In the present work, in order to perform a deep analysis of the building ...
Structure and Dynamics of EarthLs Lower Mantle
... Fig. 2. (A) Shear velocity perturbations between 660 km depth and the CMB, isocontoured at ±0.6% (blue/ red) for model S20RTS (43). Sharp LLSVP edges (yellow dashed lines) have been noted for both LLSVPs (8). (B to D) Geodynamical modeling results illustrating different conceptual models to explain ...
... Fig. 2. (A) Shear velocity perturbations between 660 km depth and the CMB, isocontoured at ±0.6% (blue/ red) for model S20RTS (43). Sharp LLSVP edges (yellow dashed lines) have been noted for both LLSVPs (8). (B to D) Geodynamical modeling results illustrating different conceptual models to explain ...
