CAJ | 학술논문

乌山顶泥火山位于台湾西南部旗山断层沿线.由于台湾西南部具有独特的地质构造背景,沿着古亭坑背斜和旗山断层沿线分布了许多泥火山.本文以乌山顶泥火山为例,研究泥火山的成因.在了解泥火山地质背景、活动现状的基础上,分析了喷出物的矿物组成、古生物组合、流体地球化学特征.喷出的主要矿物有石英、伊利石、高岭石-蒙脱石混层矿物、伊利石-蒙脱石混层矿物,古生物有Reticulofenestra minuta、 Sphenolithus abies等,流体中的离子主要是Cl~-、Na~+等.由此探讨了泥浆来源和成因机制,认为泥火山的活动与深部古亭坑组地层存在异常高压有关,构造活动是泥火山活动的主要诱发因素.
오산정니화산위우태만서남부기산단층연선.유우태만서남부구유독특적지질구조배경,연착고정갱배사화기산단층연선분포료허다니화산.본문이오산정니화산위례,연구니화산적성인.재료해니화산지질배경、활동현상적기출상,분석료분출물적광물조성、고생물조합、류체지구화학특정.분출적주요광물유석영、이리석、고령석-몽탈석혼층광물、이리석-몽탈석혼층광물,고생물유Reticulofenestra minuta、 Sphenolithus abies등,류체중적리자주요시Cl~-、Na~+등.유차탐토료니장래원화성인궤제,인위니화산적활동여심부고정갱조지층존재이상고압유관,구조활동시니화산활동적주요유발인소.
The Wushanding mud volcano is located along the Chishan fault in southwestern Taiwan. Due to the unique tectonic setting, there exist many mud volcanoes along the Gutingkeng anticline and the Chishan fault in southwestern Taiwan. Investigation was conducted on the genesis of the Wushanding volcano. Based on a field investigation of the Wushanding mud volcano, the authors analyzed mineral components, fluid geochemistry and micropalaeontological assemblage of the muddy eructation. The main mineral components include quartz, illite, kaolinite-smetice, illite-smecite, with such fossils as Reticulofenestra minuta and Sphenolithus abies. Fluid ions are composed mainly of Cl~- and Na~+ . It is thought that bodi the overpressure of the Gutingkeng Formation and the structural extrusion in Quaternary must have played the crucial roles in the formation and activity of the mud volcano.