地理研究
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Item 埔里盆地的地形面、活動構造與地形演育(地理學系, 2007-05-??) 楊貴三; 張瑞津; 沈淑敏; 石同生埔里盆地位在台灣地理中心附近,屬於雪山山脈南段;大肚溪(烏溪)上游支流南港溪和眉溪流經其間。本研究利用航照判讀、野外實察、地形計測等方法,將埔里 盆地的地形面分為5 段,包括高位階地(LT)3 段,低位階地(FT)和沖積平原(FP)各1 段。由老到新依序分布如下︰LT1 分布在盆地西北部大坪頂一帶者,形成向斜與背斜構造,向東南及南傾動,分布在盆地西南部暨南大學一帶者向東及東南撓曲。LT2 分布在盆地中央略靠西北側水蛙窟一帶及盆地南側蜈蚣窟附近一小塊。LT3 則分布於烏牛欄及坪仔頂。FT 主要分布於盆地西口的眉溪南岸和南港溪兩岸。盆地底部大部分為FP 面,包括氾濫原、現生河床和沖積扇。在LT 面上變位的活動構造,包括背斜和線形各5 段,向斜2 段,多呈北北東走向。背斜及向斜使地形面彎曲,其中,赤崁頂背斜由台糖赤崁頂農場向南南西延伸經烏牛欄階地西部,轉西南至外大坪,長約6 公里。背斜軸部偏西,越老的地形面變位愈大。外大坪(LT1 )東側撓曲崖高約100 公尺。本區之線形構造地形包括線形谷、線形崖、撓曲崖、地形面傾動、構造隆起、反斜崖等。由地形面與活動構造的相互關係,可推論埔里盆地自LT1 面形成以來的地形演育:(1)由埔里盆地北緣礫石沈積的覆瓦狀構造顯示LT1 形成時,北港溪南流入埔里盆地,南港溪及眉溪也注入盆地堆積,分別形成沖積扇,包括北側的大坪頂扇,南側的外大坪扇及眉溪扇。(2)嗣後,隨著LT1 面的隆起,北港溪轉向西流,遺留下盆地北邊的大坪頂殘面。南港溪及其支流眉溪在盆地內的持續下切,則依次形成LT2 、LT3 。由變位地形的證據可知,顯著的背斜、向斜構造及傾動運動,一直持續至LT3 面形成。FT 形成以來的地形面則未發現任何變形。(3)嗣後,各河扇階面受順向河切割,形成丘陵或殘面。目前盆底各溪盛行埋積,現生的眉溪沖積扇及南港溪沖積扇 (FP)廣大分布。Item 濁水溪平原的地勢分析與地形變遷(地理學系, 1985-03-??) 張瑞津Item 臺灣西部與南部活斷層的地形學研究(地理學系, 1984-02-??) 石再添; 鄧國雄; 張瑞津; 石慶得; 楊貴三; 許民陽Item 臺灣東部河口地區之地形學研究(地理學系, 1995-10-??) 石再添; 張瑞津; 林雪美; 張政亮; 劉明錡; 陳政典The vincinity of the estuaries is one of the most populated area in the world. In order to ultilize the resources of this area more reasonably, the understanding of its geomorphological, hydrological and sedimentary characteristics becomes a main and basic task. Since estuary is located on the interface of river and sea, the morphology of estuary is influenced by the factors coming from both environments. The drainage basin area, shoreline length, shape factor, channel gradient, runoff, sediments and monthly discharge, etc. are factors coming from land, while the wind, current, wave and tide etc. coming from the sea. This study focuses on eleven estuaries of the eastern coast of Taiwan. Based on the stream slope, number of channels, discharge, etc., these estuaries can be divided into straight and braided pattern. The former has sandbars or spurs, such as Hualien Hsi, Hsiukuluan Hsi and Kangkou Hsi, while the latter have braided channels, sandy-gravel sediments and changeable sandbars, such as Hoping Hsi, Liwu Hsi and the estuaries in Taitung coastal area. The eastern coast is classified as wave-dominated type according to average wave height and tidal range. The wave impacting upon the area between Hoping Hsi and Hsiukuluan Hsi is severer. The forms of the estuaries in eastern Taiwan have significant seasonal change due to the seasonal differences of discharge, monsoon and typhoon. In the summer, the channels usually become wider and the sandbars are gentler and extended seaward for most estuaries. In the winter, however, these sandbars become narrower, steeper and extend toward right bank. The mouth of channels will be narrowed or even closed when typhoon coming. The forms of estuaries are stable in the long-term scale. Eleven estuaries have only slight change during the period from 1904 to 1989, moving back and forth within the distance of 250m. The channel migration of most estuaries, however, is obvious.Item 臺灣西南部河口地區之地形學研究(地理學系, 1995-03-??) 石再添; 張瑞津; 林雪美; 張政亮; 劉明錡; 陳政典The vincinity of the estuaries is one of the most populated area in the world. In order to ultilize the resource of this area more reasonably, the understanding of geomorphogical, hydrological and sedimentary characteristics becomes a main and basic task. Since estuary is located on the interface of river and sea, the morphology of estuary is influenced by the factors coming from both environments. The drainage basin area, shoreline length, shape factor, channel gradient, opening form, runoff, sediments, and monthly discharge etc. coming from the land. While the wind current, wave and tide etc. coming from the sea. This study area focuses on 20 estuaries of the south-western coast of Taiwan. The five of them are gravel estuaries and the rest are sandy. By correlation grain size of sandy estuaries has relationship with channel gradient below 100m, width of opening and shape factor. The forms of sand bar on estuaries are changed seasonly. Most of them has a tendency migrating southward due to northern moonsoon. The 20 estuaries can be classified into the wave dominated type, the tide dominated type and the runoff dominated type according average wave height, specific discharge and tidal range. Comparing the location of 20 estuaries during the period from 1904 to 1990(85 years). Most estuaries tend to migrate westward. The changes of estuaries are controlled by the intensity of wave and precipitation, the influence of reservior and hydraulic engineering and the changes of land use.Item 海岸山脈東坡河階的地形學研究(地理學系, 1991-03-??) 張瑞津; 石再添; 曾正雄; 高鵬飛; 陳美鈴Owing to the continuous uplift since Quaternary, rejuvenated terraces, gorges and raised alluvial fans are developed well in the eastern slope of Coastal Range. The river terraces in this area are distributed below 200 m generally. The scarps of higher level terrace are larger than that of lower level one. The gravel deposits in higher level terrace are thicker than that of lower level one. Comparing the terrace between six studied rivers, meander terraces are significant both in Mawuku River, Fengpin River, Shuilien Riverand Fanshuliao River whereas fan terraces are developed well in Sanhsien River. In contrary, the terrace in Shuimuting River is undeveloped due to down cutting into hard rock which restricts the widening of terrace. By correlating to marine terraces, most of the terraces in this area are formed in Holocene. The detailed correlation of each step or dating still needs more envidences.Item 臺灣東部花東海岸育的河流等級研究(地理學系, 1977-01-??) 張瑞津Item 塭子川沼澤區的水文地形學研究(地理學系, 1982-01-??) 石再添; 石慶得; 張瑞津; 黃朝恩; 楊萬全; 鄧國雄Item 曾文水庫對流量及輸沙量的影響(地理學系, 2003-11-??) 陳翰霖; 張瑞津Item 地圖縮尺與河流等級之關係(地理學系, 1979-01-??) 張瑞津