英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Drumlin - Wikipedia
    A drumlin, from the Irish word droimnín ("little ridge"), first recorded in 1833, in the classical sense is an elongated hill in the shape of an inverted spoon or half-buried egg [1][2] formed by glacial ice acting on underlying unconsolidated till or ground moraine
  • Drumlins - Formation, Characteristics, and Importance of Glacial Landforms
    Drumlins - In the fascinating study of glacial landforms, one of the most distinctive features sculpted by moving ice is the drumlin These smooth, oval-shaped hills are formed beneath glaciers and provide vital clues about the direction and behavior of ancient ice flows The word drumlin comes from the Irish word “druim”, meaning “ridge” — perfectly describing their elongated, ridge
  • Drumlin | Glacial Landform, Moraine Eskers | Britannica
    Drumlin, oval or elongated hill believed to have been formed by the streamlined movement of glacial ice sheets across rock debris, or till The name is derived from the Gaelic word druim (“rounded hill,” or “mound”) and first appeared in 1833 Drumlins are generally found in broad lowland regions,
  • Drumlins - U. S. National Park Service
    The classic drumlin shapes is a hill that highest on its up-glacier end and tapers gently from there, like a half-buried egg Not all drumlins taper like this, though Because they have been streamlined by flowing ice, scientists often use them to understand past glacier flow directions They are longest in the direction of flow
  • What Is a Drumlin? Definition, Formation Examples | Geography Worlds
    A drumlin is a smooth, elongated hill shaped by glacial ice movement Learn how drumlins form, what they tell us about ice sheets, and where to find drumlin
  • What Is a Drumlin? Glacial Landforms That Reveal Ice Flow Direction . . .
    A drumlin is a smooth, elongated, oval-shaped hill composed of glacial sediment (till) that was shaped by the movement of a glacier or ice sheet Drumlins have a distinctive asymmetric profile: one end is steep and blunt (the stoss end, facing the direction the ice came from), while the other tapers to a gentle slope (the lee end, pointing in the direction the ice flowed)
  • What Are Drumlins and How Are They Formed? - Biology Insights
    A drumlin is an elongated, streamlined hill sculpted beneath a massive glacier or ice sheet The term comes from the Gaelic word druimnín, meaning “little ridge ” Drumlins are formed by the immense pressure and movement of glacial ice acting on the loose sediment, or till, at the glacier’s base Their shape and orientation provide geologists with a direct map of the direction that
  • Drumlin – Geography - Mammoth Memory Geography
    Drumlin – A hill made of glacial till deposited by a moving glacier, usually shaped like half an egg (Pronounced drum-lin) NOTE: The drumlin is usually elongated or an oval shape, with the longer axis parallel to the former direction of ice movement To remember the meaning of the term Drumlin, use the following mnemonic: The drum mer lin ed (drumlin) up and did a drum roll as the egg was
  • Drumlin - en. meteorologiaenred. com
    The drumlin is a whale-shaped glacial mound, shaped by the movement of ice during ice ages It is formed from the accumulation of glacial sediments and abrasion erosion It is composed primarily of glacial mud known as till, which includes clay, sand, and gravel Moraines, deposits of glacial sediment, are essential in the formation of drumlins in the glacial landscape
  • Drumlin | Definition, Formation Properties - Study. com
    Learn about drumlins, the drumlin definition and word origin Discover the relationship between drumlins and glaciers, how drumlins are formed and their properties





中文字典-英文字典  2005-2009