大邱-倭館 以北의 霞山洞層에 나타나는 赤色層 分布에 關하여 = On the Distribution of Reddish Beds of Hasandong Formation in Northern Part of Daegu-Waegwan Area

다국어 초록 (Multilingual Abstract)

This study deals with the distribution of Reddish beds of Hasandong Formation in the northern part of Daegu-Waegwan area.
The numbers of Reddish beds are counted more than 100 at northern most part of the study area while only 10 at southern area of the middle part. Near the Mt. Palgong, Reddish beds are disappeared, but they appear again at south-east of Waegwan area. It seems that the Reddish beds cannot be interpreted as an indicator of the paleoclimate such as subtropical savanna. The geological boundaries, which were drawn according to intercalation of the Reddish beds,are never related to isochronous horizon.
It seems that the disappearance of Reddish beds near the Mt.Palgong is partly due to the result of the intrusion of granite by which this area was affected thermal metamorphism.
According to Rock Color Chart (published by G.S.A. 1963), the colors of 60 samples of Reddish beds are generally confined in 3 colors; grayish red(5R 4/2), grayish red (10R 4/2) and moderate red(5R 5/4).
The microscopic examination shows that the most sandstones associated with the Reddish beds are classified as arkose according to Dapples' scheme(1953).

목차 (Table of Contents)

• Ⅰ. 序論
• Ⅱ. 赤色層 成因論
• Ⅲ. 赤色層의 分布
• 1. 調査方法
• 2. 赤色層의 分布
• 3. 柱狀圖
• 4. 砂岩의 分類
• 5. 色度 및 粒度
• 6. 加熱實驗
• Ⅳ. 結言