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桃園縣的海岸地形與地質 PowerPoint PPT Presentation


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桃園縣的海岸地形與地質. 臺北市立教育大學 環境教育與資源研究所 許民陽教授. 海岸分布與組成物質. 桃園縣的海岸北起蘆竹鄉海湖附近,西南至新屋鄉蚵殼港,呈東北東 - 西南西走向,略呈向外凸的弧形,全長約 43 公里,曲折度不大,僅各河口附近有凹入的河口或潟湖地形,缺乏天然良港,竹圍及永安漁港為人工圍築防波堤而成。海岸組成物質以沙、礫石及珊瑚礁為主。. 海岸分類. ( 一 ) 沙岸:占本縣海岸大部分,海底平淺,退潮時露出寬廣的沙灘及沙洲。 ( 二 ) 礫岸:分布北段海湖至竹圍沙崙一帶,海灘由粗大礫石組成,海岸坡度較陡,波浪侵蝕陸地的能量較大。

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桃園縣的海岸地形與地質

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()


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  • 2~3


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  • 225(67545=225)


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  • (1993)

  • 5301~3


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1.

a.20647

b.12929

c.8419

d.17539

e.778317


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2.

334341

260880


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1()

3~4


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()


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  • 8

  • 1904-199661996


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  • 1978199820450600

  • -20-40


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  • 19981124.5

  • 1978199820-80


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  • 20

  • 1978199817-33


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  • 19997953


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  • 1978199820-952035-95 (30)15-3519781998357


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20

19781998


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  • 17-331999795 (3)3


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1.

(up wash) (back wash)

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  • 34 (2006) 83-865.5-11.516

  • 2-3


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(2)

2.

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(3)

3.

(1999)

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  • 1001904-19661966-199630


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  • (Stromatlite)34.6


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  • ()


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  • 6(2009)

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-14


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6C14

-14


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  • NW-9~NW-11NW-9NW-920NW-10NW-11NW-12NW-13

  • 624050447140

  • NW-14~NW-1620-14283050328050NW-17NW-18


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  • 7--14~


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7C14

-14

(2007)


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  • 5~7

  • 2-3


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  • 2-3450


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  • 1961


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