Geography question from JKAS Prelims, 2018 by JKPSC
Theintrusive volcanic landform formed when lava cools in the shape of a saucer place is called as :
Last updated Jun 24, 2026
Correct Answer:
Option A —
Laccolith
While the question describes the shape of a "saucer," there is a slight technical distinction in geological terminology. Here is the breakdown of intrusive landforms:
Laccolith (A): These are large dome-shaped intrusive bodies with a level base and a convex top, often described as mushroom-shaped or resembling a saucer (specifically when referring to a Lopolith, which is the true saucer-shaped landform). In many general examinations, Laccolith is used as the representative term for these large lens-shaped intrusions.
Crater (B): This is an extrusive feature; it is the bowl-shaped depression at the top of a volcano.
Sills (C): These are horizontal, sheet-like intrusions that solidify parallel to the bedding planes of the rock.
Dykes (D): These are vertical or wall-like intrusions that cut across the bedding planes of the rock.
Note: Strictly speaking, a Lopolith is the specific term for a saucer-shaped intrusion (concave upward), while a Laccolith is more dome-shaped (convex upward). However, within the provided options, Laccolith is the intended answer for large, shaped plutonic bodies.
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.
