DC 欄位 值 語言 DC.contributor 應用地質研究所 zh_TW DC.creator 林建緯 zh_TW DC.creator Jian-Wen Lin en_US dc.date.accessioned 2001-8-16T07:39:07Z dc.date.available 2001-8-16T07:39:07Z dc.date.issued 2001 dc.identifier.uri http://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN= 87228007 dc.contributor.department 應用地質研究所 zh_TW DC.description 國立中央大學 zh_TW DC.description National Central University en_US dc.description.abstract 溫泉水的分析結果上，陰離子的分析項目以SO42-濃度為最高，而平均陰離子濃度則以大油坑地區為三地中最高者，尤以SO42-與Cl-濃度最為顯著。陽離子分析方面，平均而言以Na+、Ca2+以及總鐵離子的含量較高，而K+、Mg2+的濃度則較低，微震活動、淋濾作用、雨水稀釋等皆是溫泉水的離子濃度變化的原因。至於氫氧穩定同位素分析結果顯示，並無明顯證據指出有來自於地函或岩漿庫的成分混入，因此推測大屯火山區溫泉水的主要來源皆為天水，並未有安山岩水或岩漿水的混入，而大油坑與庚子坪地區的δD－δ18O偏離情形，原因主要應為強烈的蒸發作用所致，部分樣品或有少量地層水的加入。 至於採樣點的地熱活動特性上，中山樓地區離地下熱源較遠，因此活動較為緩和，大油坑地區則有非常劇烈的噴氣活動，推測離地下熱源較近，且地下構造較為破碎，因此有助於火山氣體的上升，而庚子坪方面，此區的噴氣活動雖不如大油坑強烈，但強烈的蒸發作用顯示地下的高熱，推測此地區距離熱源亦不遠，但地下構造似較無容許火山氣體直接上升的通道存在。 zh_TW dc.description.abstract According to the statistical analysis, the fumarolic gas concentrations including SO2, HCl and CO2, were certainly affected by the release of earthquake energy, in addition to some influence from rain precipitation and sampling condition. Whereas the results of thermal water demonstrate that microearthquake, leaching and dilution by meteoric water controlled the concentration including SO42-, Cl-, CO32-, Na+, Ca2+, K+, Mg2+and Fe. Furthermore, hydrogen and oxygen isotope compositions show the lineation of intensive evaporation effect, the mixing from magma water or andesitic water is limited in this study. Finally, as for the geochemical characteristics of three sampling areas in Tatun Volcano Group, Chungshanlo was concluded farther away from magma chamber than Tayuken and Kentzepin, the underneath structure in Tayuken area was believed to be more fractural than the other two areas. en_US DC.subject 大屯火山 zh_TW DC.subject 地熱氣 zh_TW DC.subject 溫泉水 zh_TW DC.subject 地球化學 zh_TW DC.title 大屯火山群地熱氣與溫泉水之地化特性 zh_TW dc.language.iso zh-TW zh-TW DC.title Geochemical Characteristics of Fumarolic Gases and Thermal Waters in Tatun Volcano Group en_US DC.type 博碩士論文 zh_TW DC.type thesis en_US DC.publisher National Central University en_US