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对于反映火山浅层隐伏构造的重力资料的研究表明:这种研究可以得到有关构造地质发展和活火山的动力学演化的重要信息.初步估计,与火山有关的异常重力场的所有记录实例都源于并集中于火山内部.波长小于20km、幅度30mGal的正异常,主要反映了由于各种地质结构沉降所形成的玄武岩火山的特性;这些正异常是由一些与周围不同的相对密集侵入的复合岩浆体引起的.这种不同,可能是由于这些岩浆体含有较多的镁铁矿物质、或者更可能由于以前喷发的、近地表的物质并非密集.波长达100km、幅度达60mGal的负异常出现在许多大的火山喷口(破火山口),这些喷口中有许多曾喷出过具有高量硅石火山碎屑灰和浮轻石;这种不紧密的硅石火山喷口的填充、再加上低密度的岩浆体,就造成了这种负异常.有迹象表明:具有重力异常型的连续区与火山系统地质演化基本相符,从原始裂谷或玄武安山岩的减少到高浓度的硅石火山喷口都证明了这一点经过对活火山多次的微重力观测,使得对岩浆运动、岩浆注入的变化、以及岩浆密度变化的密切监测成为可能.火山系统的动力学模型提供新的隐伏岩浆体特性的证据,对于预测火山喷发事件有很大的潜力.
Studies of gravitational data that reflect shallow volcanic insubstantial tectonics show that this study can yield important information about the structural evolution and dynamic evolution of active volcanoes. Preliminary estimates suggest that all recorded instances of volcano-related anomalous gravitational fields originate from and focus on the interior of the volcano. Positive anomalies of less than 20 km in wavelength and 30 mGal in amplitude mainly reflect the characteristics of basaltic volcanoes formed by the subsidence of various geological structures; these positive anomalies are caused by relatively intruded composite lavas that are relatively inhomogeneous with each other. This difference may be due to the fact that these magmas contain more mafic minerals or are more likely to be less dense due to previous eruptions. Negative anomalies of up to 60 km in wavelength and up to 60 mGal occur in many large volcanic vents (caldera), many of which have been sprayed with high amounts of silica volcanic ash and pumice; this less closely The filling of the silica volcano spout, coupled with the low-density magma, causes this negative anomaly. There are indications that the continuum with gravity anomalies basically conforms to the geological evolution of the volcanic system. The reduction from the original rift or basaltic andesite to the high concentration of silica volcanic vents proves this after several microgravity observations of the volcano , Making it possible to monitor magmatic movement, changes in magmatic injectivity, and close monitoring of magmatic density changes. The kinetic model of the volcanic system provides new evidence of the characteristics of a hidden volcanic body and has great potential for predicting volcanic eruptions.