Today we logged the COSC-1 geophone drill hole (COSC-1G): temperature, fluid electric conductivity, electric resistivity, full waveform sonic and natural gamma. Logger's depth of COSC-1G is 102,3 m. For comparison, we run a natural gamma log inside the conductor casing of the COSC-1 drill hole, where the cuttings were sampled. At 83,5 m logger's depth we encountered the plug from cementing the casing. The distance between the two drill holes is only about 20 m, but the highly strained rocks can vary considerably over short distances and we have to wait for the processed data to see whether a correlation is possible.