Question

What are the terms used for the calcareous deposits in the northern plains?

Answer 1

Hint: The northern plain lies between the Himalayas and the peninsular plateau of India. It is formed by the depositional work of three different river systems which are Sutlej, Ganga and Brahmaputra. Thus, the northern plains are termed as the deposited plains.

Complete answer: The calcareous deposits in the northern plains are popularly termed as Kankar.
Northern plains are having great diverse relief features. Based on the variations in many such relief features, the Northern plains can have four regions. The rivers, after descending from the mountains making a deposit of pebbles in a narrow belt. This belt is lying parallel to the slopes of the Shivalik. This is termed as bhabar.
All the streams disappear in this belt of bhabar. South of this belt, the streams and rivers re-emerge and hence creating a wet, swampy and marshy region. It is termed as terai. The largest part of this northern plain is formed of the older form of alluvium. It is lying above the floodplains of the rivers and presents a feature as a terrace. It is known as bhangar. The soil in such types of regions are containing the calcareous deposits. These are locally known as kankar. The newer and younger deposits of the flood plains are termed as khadar.

Note: The three river systems in the Northern plains from the east side to the west side are the Brahmaputra, Ganga and Indus. The Indus and its other tributaries like Jhelum, Chenab, Ravi, etc are originating in the Himalayas.