Synchronization Analysis of Stability of Magma Chamber
The stability of magma chamber is controlled by the interior factors, e.g. behavior of activities and cooling rate of the magma chamber, and the exterior factors, e.g. the extrusion and vibration of the rocks around the magma chamber. Under certain conditions, the activities of the rocks around the magma chamber can play a crucial role in the stability of magma chamber, especially in the area with frequent crustal movement.On the basis of the fieldwork in several volcanoes in Wudalianchi Area, Heilongjiang Province, China, by the principle and method of tectonics, geological fluid dynamics, volcanology and non-linear dynamics, we discussed the evolution of the whole properties of magma chamber (mainly pressure) by the oscillator model for magma chamber.According to theoretical analysis, the dynamical complexity of the activities of magma chamber exhibits four types: dissipation, collapse, stabilization and chaos. Further, on the basis of the principle of synchronization, it is found that the phases of oscillators are locked strictly when the evolution of properties of magma chamber approaches the critical state of respective attractor. This result may be useful for forecasting the volcanic activities with seismic data.
Nian Peng Yongshun Liu Baofeng Nie Ningqiang Liu Jinming Zhang
College of Resources, Environment and Tourism, Capital Normal University, No. 105 Xisanhuan Beilu, H College of Resources, Environment and Tourism, Capital Normal University, No. 105 Xisanhuan Beilu, H School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China Jiangxi Dajishan tungsten Group Corporation, Quannan County 341801, Jiangxi, China
国际会议
The 12th Conference of the International Association for Mathematical Geology(第12届国际数学地质大会)
北京
英文
231-234
2007-08-26（万方平台首次上网日期，不代表论文的发表时间）