振荡构造是浅表地质体在冲击作用或冲击波作用下产生振荡,而在岩石矿物中形成的变形构造,是瞬间超高压(5—10GPa)作用的产物,具有高应变速率(super high strain rate,>10~2s^(-1)).振荡构造分布不广,与区域构造应力场不匹配,但对其研...振荡构造是浅表地质体在冲击作用或冲击波作用下产生振荡,而在岩石矿物中形成的变形构造,是瞬间超高压(5—10GPa)作用的产物,具有高应变速率(super high strain rate,>10~2s^(-1)).振荡构造分布不广,与区域构造应力场不匹配,但对其研究,不仅具有地质意义,而且具有天文意义.冲击造成的地壳振荡有可能是导致冈瓦纳解体的直接作用.一般来讲,目前技术尚不能捕捉地质体在波的作用下留下的信息,但在强烈冲击波的作用点。展开更多
In gold mine of ductile shear zone type, the sub-fissures, the parallel penetrativejoints and the structure cracks distributed in the direction of R-plane (Riedel shearplane) are often regarded as the structures in re...In gold mine of ductile shear zone type, the sub-fissures, the parallel penetrativejoints and the structure cracks distributed in the direction of R-plane (Riedel shearplane) are often regarded as the structures in relation to gold concentration. Butthese structures are not the products formed by ductile shearing. They formed notonly later than the dynamic recrystallization of minerals such as quartz in shear zone,展开更多
Ductile deformation and brittle deformation belong to totally different deformation systems, but in field investigation and indoor research, they are often found to be intergrown. Some people think that this is due to...Ductile deformation and brittle deformation belong to totally different deformation systems, but in field investigation and indoor research, they are often found to be intergrown. Some people think that this is due to two different deformation processes, while展开更多
文摘振荡构造是浅表地质体在冲击作用或冲击波作用下产生振荡,而在岩石矿物中形成的变形构造,是瞬间超高压(5—10GPa)作用的产物,具有高应变速率(super high strain rate,>10~2s^(-1)).振荡构造分布不广,与区域构造应力场不匹配,但对其研究,不仅具有地质意义,而且具有天文意义.冲击造成的地壳振荡有可能是导致冈瓦纳解体的直接作用.一般来讲,目前技术尚不能捕捉地质体在波的作用下留下的信息,但在强烈冲击波的作用点。
基金Project supported by the National Natural Science Foundation of China.
文摘In gold mine of ductile shear zone type, the sub-fissures, the parallel penetrativejoints and the structure cracks distributed in the direction of R-plane (Riedel shearplane) are often regarded as the structures in relation to gold concentration. Butthese structures are not the products formed by ductile shearing. They formed notonly later than the dynamic recrystallization of minerals such as quartz in shear zone,
文摘Ductile deformation and brittle deformation belong to totally different deformation systems, but in field investigation and indoor research, they are often found to be intergrown. Some people think that this is due to two different deformation processes, while
