文化大學機構典藏 CCUR:Item 987654321/41793
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    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/41793


    题名: 清水地熱區硬頁岩-板岩-變質砂岩變質程度量化分析之研究
    The Quantitative of Metamorphic Grade of Argillite-Slate-Metasandstone in the Chingshui Geothermal Field
    作者: 劉佳玫
    贡献者: 地質學系
    关键词: 硬頁岩
    板岩
    變質砂岩
    量化分析
    清水地熱
    日期: 2018-2019
    上传时间: 2019-01-15 16:26:41 (UTC+8)
    摘要: 臺灣幾乎有1/2面積屬於硬頁岩-板岩-變質砂岩,若要了解臺灣島由南至北極低度-低度變質岩特徵,以量化分析工具描述岩石的變質程度將是最好的工具之一。就目前為止,不論國外或者是國內前人研究成果,皆顯少針對硬頁岩-板岩-變質砂岩以量化分析研究之。本計畫將針對清水地熱區出現的硬頁岩-板岩-變質砂岩作為量化分析的材料。將以幾個階段來進行,首先,於赤鹿坑溪及清水溪進行劈理、層面及地質構造位態之量測與岩性之記錄,並且以定向採集岩石標本。再者,研磨水平切面的岩石,並以Image-Pro Premier軟體分析岩石中礦物顆粒的特徵,包括礦物顆粒大小、方向性及其顆粒外形。接著,以X光繞射分析儀分析岩石中黏土礦物組成及其百分比,與伊萊石結晶度值。最後,綜合野外地質調查之岩性、地質構造、各種位態與室內定量分析之岩石組構與黏土礦物百分比及其伊萊石結晶度值,以了解硬頁岩、硬頁岩-變質砂岩、板岩及板岩-變質砂岩不同岩性組合時變質程度的轉變情況。
    The rock types of argillite-slate-metasandstone are widely distribution at least 1/2 area of whole Taiwan. The methods of quantitative analysis are necessary for understanding the characteristics of very low-grade and low-grade metamorphic rock from north to south of Taiwan. However, the previous researches are less focusing on quantitative analysis of argillite-slate-metasandstone.This project will focus on argillite-slate-metasandstone in the Chingshui Geothermal Field area, and will have several stage. First, we will record the geological phenomena including the attitude of cleavage, bedding, geological structure and rock types in the Chihlukeng and Chingshui rivers. Second, using the Image-Pro Premier software measures the petrography of horizontal section including sizes, directions and shapes of minerals. Third, analyze the mineral assemblages, their percentages and illite crystallinite by X-ray diffraction. Finally, combing the results of field trip and rock fabric of quantitative analysis and clay mineral assemblages, their illite crystallinite to classify and interpret the metamorphic grade translation for the different rock type of argillite, argillite-metasandstone, slate, slate-metasandstone.
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