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Match the following:

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Match the following:

Volcanic Landform
A. Sills
B. Dykes
C. Lacolith
D. Batholith

Description
a. Wall-like structure perpendicular to the ground
b. Thick horizontal deposits
c. Dome-like structure covering vast area
d. Level base connected by a pipe-like conduct from below

Answer Options:

  1. A-b, B-a, C-d, D-c
  2. A-b, B-c, C-d, D-a
  3. A-c, B-d, C-a, D-b
  4. A-a, B-b, C-c, D-d

Correct Answer: 1. A-b, B-a, C-d, D-c

Explanation:

  • Sills (A): Horizontal intrusions of magma between layers of rock – Thick horizontal deposits (b).
  • Dykes (B): Vertical or steeply inclined intrusions of magma – Wall-like structure perpendicular to the ground (a).
  • Lacolith (C): Dome-shaped magma intrusion that creates an uplift – Dome-like structure covering vast area (d).
  • Batholith (D): Large underground magma chamber – Level base connected by a pipe-like conduct from below (c).

This matching of volcanic landforms with their descriptions is a part of geographical features related to igneous intrusions.

1 Answer

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Here are the sources to verify the information:

  1. Geological and Volcanic Landforms - NCERT Geography

    • NCERT Geography textbooks provide a detailed explanation of volcanic landforms like sills, dykes, lacoliths, and batholiths.
    • Official Source: NCERT Website

  2. Geography of Volcanoes and Intrusive Landforms

    • Refer to the topic "Igneous Rocks and Landforms" in standard geography books like G.C. Leong's Physical Geography.
    • Available via: Oxford University Press

  3. US Geological Survey (USGS)

    • USGS offers definitions and diagrams of volcanic landforms.
    • Official Source: USGS Website
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