Gorakhpur - Geology

Geology

The district geology is primarily river born alluvium. Few mineral products are mined in Gorakhpur, with the most common being a nodular limestone conglomerate known as kankar, brick, and saltpetre. The last occurs principally in the south and south-east and is manufactured in a crude state in considerable quantities most of it being exported to markets of Bihar. In the Bansgaon tahsil kankar is most abundant and quarries are seen at many places. It is also extracted from some places in Mahrajganj tahsil. Lime is obtained by burning kankar. Brick clay is abundant everywhere and bricks are made all over the district. The soil in the district is light sandy or dense clay of yellowish brown colour. The sand found in the rivers is medium to coarse grained, greyish white to brownish in colour and is suitable for construction