地理学报 ›› 2011, Vol. 66 ›› Issue (3): 340-347.doi: 10.11821/xb201103006

• 海岸地貌 • 上一篇    下一篇

马祖列岛海岸阶地研究

董德辉1, 王花俤2, 邓国雄1   

  1. 1. 台湾省台北市立教育大学, 台北10048;
    2. 马祖北竿中山国中, 连江县21042
  • 收稿日期:2010-08-25 修回日期:2011-01-20 出版日期:2011-03-20 发布日期:2011-05-15
  • 作者简介:董德辉(1960-), 男, 山东胶县人, 助理教授, 博士, 从事地貌学、构造地质学、环境灾害、观光景区规划方面的研究。E-mail: thtung@tmue.edu.tw

The Study of Marine Terraces on Matsu Islands

TUNG Terhuei1, WANG Huati2, TENG Kouhsiung1   

  1. 1. Department of History and Geography & Center Teacher Education and Career Guidance, Taipei Municipal University of Education, Taipei 10048, China;
    2. Matsu Beigan Chung Shan Junior High School, Lianjiang County 21042, Taiwan, China
  • Received:2010-08-25 Revised:2011-01-20 Online:2011-03-20 Published:2011-05-15

摘要: 距今二亿年前的三迭纪晚期一系列之大地构造运动,形成福建沿海的平潭—东山褶皱带,以及长樂—诏安断裂带,又因为构造运动以及岩浆活动的影响,在褶皱带与断裂带的东缘形成一系列的岛屿,马祖列岛的形成,与中国东南沿海的造山运动有密切关系,皆受到影响而产生变动。马祖地区的海阶,共有9 段阶地,各段阶地的海拔高度依序为0~10 m、20~38 m、40~56 m、58~78 m、80~97 m、100~128 m、142~160 m、172~182 m、238~248 m。依据晚更新世海阶序列与隆升率关系对比基图迭合法的推估,各段阶地生成年代分别为6 ka BP、46 ka BP、55 ka BP、76 kaBP、79 ka BP、94 ka BP、105 ka BP、119 ka BP、175 ka BP,除了第一级阶地为全新世时期所形成,其余皆为更新世时期的产物,比对马祖列岛海阶的高度与间距,测得整个地区的基盘平均隆升速率为1.6 mm/a。

关键词: 褶皱带, 马祖列岛, 海阶, 隆升速率

Abstract: The tectonic movements of Pingtan-Dongshan fold belt and Changleh-Zhao'an fault zone occurred in late Jurassic. Due to the influence of tectonic movement and magmatic activities, formed a series of islands off the coast of southeast China including the Matsu Islands. The results show that the Matsu Islands have 9 marine terraces, with heights of 0-10 m, 20-38 m, 40-56 m, 58-78 m, 80-97 m, 100-128 m, 142-160 m, 172-182 m and 238-248 m. Based on the relationship of late Pleistocene marine terraces sequence and uplift rate base map, we have estimated formation age of various marine terraces, i.e., 6 ka BP, 46 ka BP, 55 ka BP, 76 ka BP, 79 ka BP, 94 ka BP, 105 ka BP, 119 ka BP and 175 ka BP. The terraces formed in Pleistocene except the first step in Pliocene. The basement average uplift rate is estimated to be 1.6 mm/a after we compared the height and spacing of marine terraces on the Matsu Islands.

Key words: fold belt, tectonic movement, Matsu Islands, marine terrace, uplift rate