| abstract |
The invention provides a method of taking a crustal core sample, wherein the crustal core sample is obtained in a state coated with antimicrobial polymeric gel formed of a polymer and an inorganic antimicrobial agent dispersed in the polymer. It is preferred that the inorganic antimicrobial agent is a compound containing at least one of silver, zinc, copper and ions thereof, the inorganic antimicrobial agent is carried onto a carrier material, the polymer forming the antimicrobial polymeric gel contains a hydrophilic group, and the antimicrobial polymeric gel contains the inorganic antimicrobial agent in a proportion of 0.0001 to 10.0 mass %. n Antimicrobial polymeric gel and powdered gel material suitable for use in taking crustal core sample, comprising a polymeric substance and an inorganic antimicrobial agent dispersed in the polymeric substance, the gel is used for coating the crustal core sample upon the taking by drilling the crust. |