PHYSICAL PROPERTIES

Physical properties measurements taken on core recovered from Site 1190 consist of thermal conductivity and standard index properties measurements. Recovery from Holes 1190A, 1190B, and 1190C was low and did not allow for many physical properties measurements. Because the short fragmented core pieces were not suitable for automated multisensor track measurements, no magnetic susceptibility or natural gamma radiation measurements were taken. Likewise, compressional wave velocity could not be measured. One thermal conductivity measurement was possible on core from Hole 1190B; Section 193-1190B-2R (Piece 7, 39-45 cm) had a value of 1.07 W/(m·K). This value is similar to those obtained for unaltered rock at Sites 1188 and 1189. Index properties measurements were taken on one minicore from Hole 1190B, and the data are shown in Table T6. Grain density for a powder sample prepared for ICP-AES from interval 193-1190B-2R-1, 3-5 cm (3.53 mbsf), is 2.60 g/cm3. The grain density for the minicore is slightly lower than the measurement on the ICP-AES powder, but the samples were taken from different intervals, so a direct comparison cannot be made. The grain density values are lower than those of unaltered rocks from Sites 1188 and 1189, but the porosity value is higher.