[1] We systematically conducted impact cratering experiments with sedimentary rocks at 0.8-7.1 km/s using various projectiles with 1.1-15 g/cm 3 in density. The crater diameter, depth, and volume are investigated and compared with the results for igneous rocks. Then, using the non-dimensional parameters, the normalized crater diameter p D , the normalized depth p d , the normalized volume p V , the target strength per specific energy p 3 , and the target and projectile density ratio p 4 , the scaling laws,

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