Although most volcanoes are found at convergent or divergent plate boundaries, intraplate volcanoes are found in the middle of a tectonic plate. The Hawaiian Islands are the exposed peaks of a great chain of volcanoes that lie on the Pacific plate. These islands are in the middle of the Pacifi...
Volcanoes often form along ___. A. river banks B. plate boundaries C. mountain tops D. deserts 相关知识点: 试题来源: 解析 B。解析:“Volcanoes often form along plate boundaries where magma from the mantle can reach the surface.”,火山通常沿着板块边界形成。反馈 收藏 ...
00 托福背景知识-地质系列10-Development of Plate Tectonics 08:45 托福背景知识-地质系列11-The Wilson Cycle and Plate Boundaries 09:30 托福背景知识-地质系列12-The Layers of the Ocean- 05:07 托福背景知识-地质系列13-Topography and Types of Sediments 09:10 托福背景知识-地质系列14-Pillow Lava, ...
This chapter focuses on divergent plate boundaries, that is where two lithospheric plates drift away from each other. Plate divergence may occur on continental, transitional and oceanic lithosphere, with spreading rates varying over nearly 2 orders of magnitude, from a few mm/year to~15cm/year. ...
Deep down in the ocean at tectonic plate boundaries, hot fluids rise from hydrothermal vents. The fluids are devoid of oxygen and contain large amounts of metals such as iron, manganese or copper. Some may also transport sulfides, methane and hydrogen. When the hot water mixes with the cold...
of material. Ash from the volcanic eruption is also present between the lava layers along the edge of the volcano. Composite volcanoes are common along the Pacific Ring of Fire and other major tectonic plate boundaries where the presence of water in the magma chamber creates explosive eruptions....
3- Volcanoes are most commonly found alongtectonic plate boundaries, where the Earth's plates are moving apart or grinding together.The Ring of Firearound the Pacific Ocean is home to about 90% of the world's active volcanoes. However, volcanoes can also be found in the middle of plates, ...
The vast majority of volcanic activity occurs where tectonic plates collide, called convergent boundaries, or spread, called divergent boundaries. However, there is a special class of volcanoes that form within plates. These inter-plate volcanoes are kno
A. Along the plate boundaries B. In the middle of the continents C. At the poles D. On the ocean floor far from the land 相关知识点: 试题来源: 解析 A。解析:大多数火山位于板块边界处。板块边界处地壳运动活跃,容易形成火山。选项B,大陆中部不是火山的主要分布地。选项C,极地不是火山主要分布的...
Unlike most of the world"s volcanoes, they are not always found at the boundaries of the great drifting plates that make up the earth"s surface; on the contrary, many of them lie deep in the interior of a plate. [分析]首先可以通过分号将句子断开。前面分句中,句首是unlike引导的状语,they...