Simple Penetration Test for Sedimentary Rocks

  title={Simple Penetration Test for Sedimentary Rocks},
  author={Kazuyoshi Ida},
  • Kazuyoshi Ida
  • Published 1958
  • Geology
  • Simplified penetration-test shows the relative value of consolidation for sedimentary rocks as well as soil. This method is to measure the press-mark which is made by falling some metal instrument (cone, awl or steel ball) on the horizontal surface of rocks, and is available for the geological field-works and core-tests.