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Weak reduction of rock deformation and plate seismic activity with depth

l of a research area well and most of the observed reduction in line. Experimental deformation of rocks from the pull of history,[link widoczny dla zalogowanych], we calculated the depth of seismic activity is expected to change in marrow (Figure 41. Assumes that all parts of the rock crab, is well combined with her firm at the same rate of change of deformation. An earthquake or a rock of entire b pull, or focus on seismic in the area given the same degree of thrust, the quake cut the drum head with the rock plate and lower the total amount of material strain rate proportional to the tilt. circle painted abroad 3b 4a instantaneous strain rate of rock plates, stretching The maximum length and compression in the rock around the top and bottom plates. two tiny little cross-regional strain rate, cycle 3 (a) uniform state of the mantle rocks to form the reservoir plate. (b) 670km depth of lO-fold increase in viscosity mantle. car prince Yu knock plate only shows part of consumption, not displayed on the ridge lap position. To Po II ��omitted reverse wilted sections. rectangles the same area shows the location of density anomalies, abnormal size flat rectangle width and anti- to change - and show the ticket store of plate tilt strain. line with the group when the liquid soul together,[link widoczny dla zalogowanych], pull the torch-shaped display of rock under the strip from the surface of the elongation to occur, to ugly to buildings if the viscosity increases with the degree of exploration * Department of rock plates Yao suddenly compressed to generate b (x Strain things rock reservoir thickness J Figure 4 One mandarin duck rock board rate should be predicted rate of seismic activity. a: Figure 3h strain within the rock plate thing (670km depth the following 10 Xi mantle increased wheel),[link widoczny dla zalogowanych], center of the plate strain rate for the axis to draw the rock shop. Auxiliary Medical curve represents the right-side song (+), on the left of that stretch (I). minimal deformation in the central stretch of rock s compressed transfer plate where the maximum strain rate of pull in the rock opened and close to 670km from the surface viscous layer at the depth. maximum strain and maximum rock thing at the same thickness. 670kin below. under the boat suddenly I} strain rate spread decreased. b: to asked for the depth of 50km total votes across the strain rate (down �� product). c: pre-earthquake Hao,[link widoczny dla zalogowanych], including the logarithm of mobility. �� with something under the strain Yun Ji-meter board, revolves around the rock and get married on the calculation. weak blame the rock core modulus of the grant, the value of seismic drum �� plate in strain rate and viscosity of the biggest rock Zha. Results from the class of polar cod deposited in the earthquake cycle J. Journal of the rock with depth from the surface that the drum pull oak decline in central silicon. used to stretch under the corresponding long area. heap of pressure, then re-re-Chi,[link widoczny dla zalogowanych], in 670kin One should be a sudden drop in depth, no shock can sink a rock plate 22 - in 670kin strain following a sudden drop. Figure 4b shows the degree cut along the section-by-strain range rate of aggregate results. In order to obtain the expected seismic activity, we must consider the different depths within the rock plate (earthquake zone) thickness. Therefore, we used to rock thickness multiplied by the accumulated strain rate to obtain the expected distribution of seismic activity (Figure 4c .) test gives a simple model assistance side, the calculated model of seismic activity (Figure 4c) is very similar to Figure I the results obtained. in the upper plate rocks, the seismic activity rate decreases exponentially foot depth, the depth in the middle reached the minimum, to 670km deep compression zone for the next dump. seismicity rate increase. In addition. Our results aseismic mantle rock bottom plate inserted to propose a simple mechanism: the depths of the 670tm. If the viscosity of the mantle appropriate increase. rock plate strain than in the sudden possession of a small viscous interface (fields 4a). Although the rock board continued to decline. effective seismic activity has ceased (Figure 4c). so. liquid rock plate model taking into account the real rock board deformation, considered the largest consumer possession with the observed changes in the depth of the focal mechanism of the foot. by changing the depth of seismic activity observed rate of foot model. and how to give a rock plate inserted deep aseismic mantle to a simple explanation. The model can not explain how the entire depth of the rock plate subjected to continuous compression, which though not common deformation model. kerma in Tonga a lower observed Dirk. This may be complicated plate and the plate geometry of the rock mantle flow caused by complex results. with our simple two-dimensional test model can not explain this possibility. but deep earthquake mechanism is uncertain. and seismic activity patterns observed may reflect the Exploration Department of pressure and temperature changes or seismic exploration activities to reflect of the rock plate. However, in this regard. weak consumer easier to consider the possession of the rock plate model without the need to explore a given seismic shock mechanism to explain the observed changes in seismic activity. We see the strain rate is proportional to the seismic activity Any mechanism may be consistent with the observed. be able to briefly explain the main phenomena. This is the weak consumer the most hidden sense of the rock plate model where Xing Lu, the model proposed: the rocks can be observed not as a strong board inserted under the rock trench. but in the weak form of the fluid reservoir into the mantle in the plate. translated from: Nature. Vo1.361. 1993 Translation: Guan Wei Yi-proofing: Chen Hong, a 23 -