The study area located in Chongpung-myon and Kumsong-Myon, Chewon-Kun, Chungbuk Province consists of the Chosun Group (Great Limestone Series) in eastern part and the Okchon Group in Western part. In order to clarify the structural relationship between the two groups, structural patterns and geologic features have systematically been investigated. The dominant structural features of the area are NW~E trending thrust faults, which are interpreted to have formed by progressive northward thrust movement during the Late CretaceousrEarly Tertiary orgeny. The predominant ocurrence of cataclastic rocks such as fault breccia, fault clay and micro-breccia suggests that the thrust faults were formed at relatively high level. The folds in limestone area consist of the primary fold (axial plane of NNW direction)and the secondary fold (axial plane of NE direction). F1 fold looks like a recumbent fold and F2 fold looks like up-right fold. The interference patterns of the area are applicable type 3. According to the interlimb angle F1 fold is included to the closed fold and F2 fold the open fold. The micro fabric study reveals that the ductile deformation is dominant in this area. According to the strain measurements using the deformed quartz grains, Lode'value(ν) is-0.24∼1.00 and the strain ellipsoids are oblate and prolate strain type.

This study was carried out to find a useful mushroom at Chungnam Agricultural Research And Extention Service. Twenty materials used were collected from domestic and exotic area. These races were compared bontanical characteristics to leading varieties by PCR-RAPD methods. Mycelial growth temperature of Chongpung and Myongwol were at 20 to 25 ℃ and 25 to 30 ℃ at PDA medium, respectively mycelial growth of these varieties were similiar at pH 6.5 to 7.5. In case of mushroom cultivation temperature ranges, Chongpung was at 5 to 26℃ and Myongwol was at 7 to 28℃, but the optimum temperature range of these were appeared at 15 to 19℃. Culture temperature of these was 23℃ and period of mycelial culture was needed 23 to 24 days under 850cc/pp, while was needed 11 to 12 days at waste cotton medium. Cap color of these at first inducing mushroom was all dark blue, but at late growing stages Chongpung was shown as grey, and Myongwol was shown as dark grey. Yield of Chongpung was appeared as 46kg/3.3m2 and that of Myongwol was 41kg /3.3m2, while Chunchu No2 as check was 40kg/3.3m2. Results from PDA medium and PCR-RAPD analysis two of these were different from others.