月岳山北側 古雲里層 方解石 雙晶을 利用한 推定差應力 分析

• 영문명: Inferred differential stress from twinning in calcite of Gounri formation in the northern area of Worak-san, Korea
• 발행기관: 대한자원환경지질학회
• 저자명: Myeong Hyeok Ihm(任明赫) Young Eom Kim(金英嚴) Tae Woo Chang(張泰雨)
• 간행물 정보: 『자원환경지질』24권 2호, 177~184쪽, 전체 8쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1991.04.30

영문 초록

Ogchon Supergroup directly contacts with Choseon Supergroup in the northern area of Worak-san, where evidences indicating thrust-fault formed during D₂-deformation are observed. On footwall of thrust fault, calcite veins in Gounri Formation belonging to Choson Supergroup may be deformed during thrust faulting(D₂). Calcite veins are parallel to axial plane cleavage(S₂) of F₂ fold and truncate slaty cleavage(S₁). Therefore, we can use deformation twins in calcite grains of the veins as a marker for inferred differential stress operated upon thrust faulting. The inferred differential stresses are estimated at 190 Mpa from K₁ sample. The stress from K₁ sample close to the contact between Ogchon Supergroup and Choseon Supergroup shows a higher value than K₂-K₆ samples, probably having an important influence upon thrust faulting. The differential stress reveal again high value at K₇ sample, which may suggest the presence of another thrust fault.

목차

ABSTRACT

序言

地質構造

推定 差應力 分析

考察

結言

參考文獻