始興郡 西面一帶의 鑛化規制構造와 航空寫眞解析結果와의 比較硏究

• 영문명: The study of structural control and relative photogeological interpretation on Shiheung mine region
• 발행기관: 대한자원환경지질학회
• 저자명: Jeong Mahn Chi(池楨蔓) Byeoonghwa Ryuu(柳炳和)
• 간행물 정보: 『자원환경지질』3권 4호, 199~230쪽, 전체 32쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1970.12.30

영문 초록

One of the biggest sulfide metallic (Cu, Pb, Zn) ore deposits of South Korea is located in the area of Seo-myeon, Shiheung-gun, Gyeonggi-do. Geology of the region is mostly composed of metasediments of biotite schist, graphite schist, injection gneiss, sericite schist, limesilicate and quartzite from bottom, those are applicable to so-called Yeoncheon System of Pre-Cambrian, and granodiorite, quartz porphyry, basic dykes are outcroped in a small scope as intrusives. The origin of the ore deposit is pyrometasomatic contact deposits due to hydrothermal replacement and the ore bodies are imbedded in lower bed of limesilicate formation as impregnation and ore minerals are galena, sphalerite, marmatite, chalcopyrite, bornite, chalcocite, covellite, and the later two minerals are both hypogene and supergene. Gangue minerals are mostly skarn minerals those hornblende, diopside, epidote, hedenbergite, chlorite, garnet and quartz except primary calcite and quartz. Boundary plane (NS strike) between schists and limesilicate seemed to be primary opening of ore solution and fractures bearing N 50°~80°W are secondary structural control for localization of ore minerals and the third structural controls are both irregular gashes and schistosity in small scale. Photogeological study was carried with vertical aerial photo scaled 1 : 38,000 and enlarged 1 : 10,000 under stereoscope. The study on the area convinced the fact that the geologic boundaries between rocks, limesilicates and quartzites, are traced easily by their typical topographic feature and drainage, and the main fracture patterns which derived from the result of fracture traces, that photogeologic lineament observed under stereoscope, are those bearing (1) N20°W, (2) N58°W, (3) N76°W, (4) EW, (5) N20°E, (6) N62°E, (7) N77°E. Among the written fractures, (5) (not schistosity, in case of fault) (6) (7) are post-mineral faults and others are pre-mineral faults and others are pre-mineral structures, and (2) (3) (6) (7) are coincided with statistical figure of 208 fractures surveyed in underground. By the result of the study, mineralized zone, are presumed to extend north and southward, total length about 4km.

목차

Abstract

1. 序言

2. 位置(硏究對象地域)

3. 地形

4. 地質

5. 地質構造

6. 航空寫眞 判讀에 依한 地形ㆍ地質

7. 地層各論

8. 鑛床

9. 坑內調査結果에서 導出한 斷裂性構造의 樣式

10. 航空寫眞의 fracture traces

11. 坑內調査에서 導出한 斷裂性構造의 樣式(A)과 航空寫眞判讀에 依한 fracture traces(B)와의 比較

12. 結論

參考文獻