16.6古生代板块构造
Section outline
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Lesson
::经验教训Could these mountains have existed in the Paleozoic?
::难道这些山 曾经存在于Paleozoic?Sure! There have been lots of huge mountain ranges in Earth history. When continents collide, big mountains grow. The formation of Pangaea created long large mountain ranges. The mountains that formed then look a lot like the Himalayas do today.
::当然了,地球历史上有很多巨大的山脉。当大陆相撞时,大山会生长。潘加亚的形成创造了很长的山脉。那时形成的山脉与今天的喜马拉雅山很相似。The Paleozoic Era
::Paleozoic时代The Paleozoic is the earliest era of the Phanerozoic. The Paleozoic was also the longest era of the Phanerozoic. But the Paleozoic was relatively recent. It began only 570 million years ago. At the start of the Paleozoic, there was a supercontinent called Rodinia. The supercontinent broke apart during the early part of the Paleozoic.
::Paleozoic是Phanerozoic最早的时代,Paleozoic也是Phanerozoic最悠久的时代。但Paleozoic是相对近期的。它始于5亿7千万年前。在Paleozoic开始的时候,有一个叫Rodinia的超级continent。在Paleozoic早期,超级continent分裂了。The Phanerozoic is recent history compared with the Precambrian. This is one reason that the Paleozoic is much better known than the Precambrian. Another reason is that Paleozoic organisms had hard parts, and they fossilized better.
::与Precambrian相比,Phanerozoic是近代史。 这也是Paleozoic比Precambrian更为人所知的原因之一。 另一个原因是Paleozoic生物有硬部分,它们化化得更好。Formation of Pangaea
::Pangaea的组建A mountain-building event is called an orogeny . Orogenies take place over tens or hundreds of millions of years. Continents smash into each other. Microcontinents and island arcs smash into continents. All of these events cause mountains to rise.
::山地建设活动被称为“异质” 。 古老的奥秘发生在数千亿年或数亿年的时间里。 大陆相互碰撞。 微量污染物和岛屿弧将大洲撞入大洲。 所有这些事件都导致山峰上升。When Pangaea came together there were orogenies all along the collision zones. Geologists find much evidence of these orogenies. For example, Laurentia collided with the Taconic Island Arc during the Taconic Orogeny ( Figure ). The remnants of this mountain range make up the Taconic Mountains in New York.
::当潘加亚聚在一起时,相撞区各处都有不同物种。地质学家发现了许多关于这些物种的证据。例如,洛朗蒂亚与塔康尼岛弧相撞(图 ) 。 这一山脉的残存构成纽约的塔康尼山脉。The Taconic Orogeny is an example of a collision between a continent and a volcanic island arc.
::火山火山口是大陆与火山岛弧相撞的一个例子。Laurentia experienced other orogenies as it collided with the northern continents. The southern continents came together to form Gondwana. When Laurentia and Gondwana collided to create Pangaea, the Appalachians rose. Geologists think the Appalachians were once higher than the Himalayas are now.
::洛朗西亚在与北方大陆相撞时,经历了其他不同的情况。 南部各大洲共同组成了贡德瓦纳。 当洛朗西亚和贡德瓦纳相撞创建潘加亚时,阿帕拉契亚人崛起。 地质学家认为阿巴拉契亚人曾经比喜马拉雅山脉高过一次。Pangaea
::潘加亚Pangaea was the last supercontinent on Earth. Evidence for the existence of Pangaea was what Alfred Wegener used to create his hypothesis . Continental drift is described in the chapter Plate Tectonics .
::Pangaea是地球上最后的超级大陆毗连体,证明Pangaea存在的证据是Alfred Wegener用来创造他的假设。As the continents move, the shape of the oceans changes too. At the time of Pangaea, most of Earth’s water was collected in a huge ocean. This ocean was called Panthalassa ( Figure ).
::随着大陆的移动,海洋的形状也发生了变化。 在潘加亚时,大部分地球水都是在巨大的海洋中收集的。 这块海洋被称为潘塔拉萨(Panthalassa ) 。Pangaea was the sole landform 250 million years ago. The rest of the planet was a huge ocean called Panthalassa, along with a few smaller seas.
::潘加亚是2.5亿年前唯一的陆地形态。 地球的其余部分是一个巨大的海洋,叫做潘塔拉萨,还有几个较小的海洋。Summary
::摘要- The Paleozoic began with the supercontinent Rodinia. The era ended with the supercontinent Pangaea.
::帕利奥索伊奇从超级大陆人罗迪尼亚开始,随着超级大陆人潘加埃亚的结束,这个时代结束了。
- As continents come together, orogenies build up mountain ranges.
::随着各大洲走到一起, 异种会建立山脉。
- Pangaea was a giant landmass made of all of the continents around 250 million years ago.
::潘加亚是一个巨型陆地, 由大约2.5亿年前的所有大陆组成。
Review
::回顾- How do plate tectonics processes result in orogenies?
::板块构造过程如何产生异种?
- How did Pangaea come together?
::潘加亚是怎么走到一起的?
- How is the creation of Pangaea related to events like the Taconic orogeny?
::Pangalea的创造与 诸如营养质质质之类的事件 有何关联?
- The Paleozoic began with the supercontinent Rodinia. The era ended with the supercontinent Pangaea.
