Which of the following tectonic plate boundaries is not associated with volcanism?

Question

Which of the following tectonic plate boundaries is not associated with volcanism?

BlackTom AI · Accepted Answer

Question restatement: Which tectonic plate boundary is not associated with volcanism? Options: 1) Continental-oceanic convergent plate boundary, 2) All of these boundaries are associated with volcanism, 3) Continental-continental convergent plate boundary, 4) Oceanic-oceanic convergent plate boundary, 5) Divergent plate boundary.

Option 1: Continental-oceanic convergent plate boundary. At these boundaries, the oceanic plate subducts beneath the continental plate, causing melting of mantle rock and formation of magma that rises to form volcanoes on the overriding plate. This boundary is indeed associated with volcanism, such as the Andes and the Cascade Range.

Option 2: All of these boundaries are associated with volcanism. If this were true, every boundary would host volcanism. However, this is not the case for continental-continental convergence, so this statement is incorrect.

Option 3: Continental-continental convergent plate boundary. Here, two continental plates collide and crumple, creating mountain belts. Subduction of crust is minimized or absent, and melt production is limited, so surface volcanism is not a typical outcome of this boundary. While there can be magmatic intrusions or localized volcanic activity in unusual settings, widespread volcanism is not characteristic of standard continental-continental convergence.

Option 4: Oceanic-oceanic convergent plate boundary. In this scenario, one oceanic plate subducts beneath another, producing island arcs and volcanic activity due to magma generation from subducted material. This boundary is volcanically active.

Option 5: Divergent plate boundary. At divergent boundaries, plates move apart and magma rises to fill the gap, creating new crust. This process commonly produces volcanism, such as mid-ocean ridges and rift valleys.

Summary reasoning: Most plate boundary types involve volcanism due to magma generation or extrusion (oceanic-oceanic, continental-oceanic, and divergent boundaries). The continental-continental convergent boundary is the exception, as its collision creates high mountain ranges with little to no typical surface volcanism. Therefore, the boundary not associated with volcanism is continental-continental convergent plate boundary.

GEL 017 001 SQ 2025 Aloha Quiz 6

Which of the following tectonic plate boundaries is not associated with volcanism?

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GEL 017 001 SQ 2025 Aloha Quiz 6

Which of the following tectonic plate boundaries is not associated with volcanism?

查看解析

登录即可查看完整答案

类似问题

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Question at position 34 Which type of plate boundary involves two plates that move away from each other?divergentconvergenttransformClear my selection

更多留学生实用工具

希望你的学习变得更简单

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