Crystal growth under shear flow

科学项目包括三个主题；一是岩石塑性剪切流作用下的造岩矿物压力-温度路径反演，二是利用剪切流作用下的压力-温度路径准确估算出产水量，三是利用变质岩剪切流作用下的造岩矿物生长方式获得变形速率。第一个目标的结果清楚地表明，从石榴石和角闪石的生长分区中获得了精确的压力和温度路径。在三巴川的情况下，变质作用是热的。二是成功地测量了天然样品中石榴石在任何组成和压力-温度下的生长体积。在7-8和9-10kb处出现两个水释放峰。第三个目标可以用由绿泥石生长的石榴石在基质中的有限扩散长度来模拟。石榴石的各向异性生长速率应成为温度和应变/应变速率的函数。

The science program involves three thema ; one is the pressure-temperature path inversion from rock-froming minerals grown under plastic shear flow of rocks, the second is to exactly estimate the water production rate using pressure-temperature path under shear flow, and the third is to obtain the deformation rate using the growth pattern of rock-forming minerals under shear flow of metamorphic rocks.The results of the first target are clear to propose that the precise paths of pressure and temperature were obtained from growth zoning of garnet and amphiboles. In the case of Sanbagawa metamorphism was hot. The second is the successful results that growth volume of garnet can be measured in the natural samples at any composition and pressure-temperature of garnet position. Two peaks of water release were observed at the 7-8, and 9-10kb. The third target can be modeled by means of finite diffusion length in the matrix for garnet growth from chlorite. Te anisotropic growth rate of garnet should become in the function of the temperature and strain/strain rate.