Physical properties, structure and destruction of magmatic silicate melt and their implication to the magmatic process

岩浆硅酸盐熔体的物理性质、结构和破坏及其对岩浆过程的影响

基本信息

批准号：
10304041
负责人：
TANIGUCHI Hiromitsu
金额：
$ 23.42万
依托单位：
Tohoku University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A).
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

项目摘要

The purpose of this research project are : 1. To make the system of measurement of physical properties of magmatic silicate melt both under 1 atm and high pressure, and both under high temperature and low temperature including liquid state, super-cooled liquid state and glassy state. 2. The physical properties we have planed to measure are viscosity coefficient, density and some related properties. 3. To understand the concrete mechanism of a magmatic process, we have also planned to determine the structure of related materials including glass and mineral, and to apply the determination of both explosion energy and the depth of explosive volcanism.Unfortunately, it took one and a half year to construct the system, we could not get enough data for the purpose, however, the followings are the main summary at the present : 1. The establishment of universal viscosity-equation which is applicable to wide temperature rage of magmatic silicate melt based on the WLF equation. This enable us to calculate the viscosity at around 1000 ℃. 2. We have presented a new model of mechanism of an earthquake generated by the destruction of magmatic silicate melt.3. We have determined the viscosity and density of melts of albite and peridotite compositions for the understanding of a magma ocean. 4. We have determined the structure of hydrous ringwoodite. 5. We have suceeded in the determination of both explosion energy and explosion depth of the Usu 2000 phreatic explosions.

该研究项目的目的是：1。使岩浆硅树脂的物理性质的测量系统融化在1 atm和高压下，以及在高温和低温下，包括液态，超冷的液态和玻璃状态。 2。我们计划测量的物理特性是粘度系数，密度和某些相关特性。 3。要了解岩浆过程的具体机制，我们还计划确定相关材料在内的结构，包括玻璃和矿物质，并确定爆炸能量和爆炸性火山的深度的确定，不幸的是，构建该系统的目的是为了构建足够的数据，以下是一个范围的效率，以下是一个范围，该系统的范围是范围的。基于WLF方程的岩浆硅树脂融化的温度愤怒。这使我们能够计算约1000℃的粘度。 2。我们提出了一种新的地震机理模型，该机制是由岩浆硅熔体破坏产生的。3。我们已经确定了al木和橄榄岩组成的熔体的粘度和密度，以理解岩浆海洋。 4。我们已经确定了液压林木的结构。 5。我们已经成功地确定了USU 2000 phreatic爆炸的爆炸能量和爆炸深度。