Formation of bowl-shaped craters
Formation of bowl-shaped craters
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DOI：
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发表时间：
1980
影响因子：
4.4
通讯作者：
A. Piekutowski
中科院分区：
文献类型：
--
作者：
A. Piekutowski
高爆装药被用来在几种颗粒状介质中形成碗状陨石坑的实验室规模的例子，这些陨石坑被发现是行星和月球表面上最大和最简单的撞击结构。实验的高速薄膜产生弹坑生长速率和颗粒位移数据，包括定量应力、应变、位移和速度数据。这些结果与产生碗状陨石坑的大爆炸实验的粒子位移和速度数据进行了比较。从这些比较的结果，以及大爆炸和撞击坑的形态特征和结构变形的结果，发展了大型碗形撞击坑形成的时间序列描述。
High-explosive charges are used to form, in several types of granular media, laboratory-scale examples of the bowl-shaped craters that are found to be the largest and simplest class of impact structure on planetary and lunar surfaces. High-speed films of the experiments yield crater growth rate and particle displacement data, including quantitative stress, strain, displacement, and velocity data. These results are compared with the particle displacement and velocity data from large explosion experiments which have produced bowl-shaped craters. A time-sequence description of large, bowl-shaped impact crater formation is developed from the results of these comparisons, as well as those of the morphological features and structural deformations of large explosions and impact craters.