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Volcanoes — Geography STD 9 — Question

ICSE BoardEnglish MediumSTD 9GeographyVolcanoes2 Marks
Question
Name any two intrusive landforms made by volcanic eruptions.
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Answer

  1. Batholiths: Large-sized intrusions in igneous rocks. They occur at considerable depth and come to the surface in course of mountain building activity.
  2. Laccolith: These are formed when magma spreads laterally in a dome shape. The dome also forces the overlying strata to bulge upward. The projecting landform is subjected to erosion and denudation. Thus laccolith comes to the surface.

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