India's diverse and ancient geological structure is indeed the primary reason for its rich and varied mineral resources. The country's landmass comprises some of the oldest geological formations on Earth, including the Peninsular Shield, which is a remnant of the ancient Gondwana supercontinent, as well as younger sedimentary basins and the relatively recent Himalayan fold mountains. This geological history has led to the formation and concentration of minerals in distinct belts across the country.

1. The North-Eastern Peninsular Mineral Belt: This is arguably the richest mineral belt in India, encompassing the Chota Nagpur Plateau region (Jharkhand, Odisha, West Bengal, and parts of Chhattisgarh). Its wealth is attributed to the ancient crystalline and metamorphic rocks of the Peninsular Shield, along with extensive Gondwana coalfields. This belt is a storehouse of metallic minerals like iron ore (hematite and magnetite found in Singhbhum, Mayurbhanj, Keonjhar), manganese (Odisha, Jharkhand), copper (Singhbhum), bauxite (Jharkhand, Odisha), and mica (Koderma, Hazaribagh). The Gondwana formations are particularly rich in high-grade bituminous coal, making it the prime coal-producing region.

2. The Central Mineral Belt: Extending across parts of Madhya Pradesh, Chhattisgarh, Maharashtra, and Andhra Pradesh, this belt is also rich in minerals associated with ancient geological formations. It contains significant deposits of manganese (Balaghat, Nagpur), bauxite (Amarkantak Plateau), limestone, and some iron ore. The geological setup here, with its mix of crystalline rocks and sedimentary sequences, supports these diverse mineral occurrences.

3. The South-Western Peninsular Mineral Belt: This belt covers parts of Karnataka, Goa, and Kerala. It is characterized by the Dharwar system of rocks, which are among the oldest metamorphic rocks in India, known for their metallic mineral content. This region is famous for its high-grade iron ore (Kudremukh, Bellary-Hospet), manganese, and bauxite. While coal deposits are scarce, the region has significant reserves of monazite and thorium sands along the Kerala coast, derived from the weathering of Peninsular rocks.

4. The North-Western Mineral Belt: Primarily located in Rajasthan and parts of Gujarat, this belt is associated with the ancient Aravalli mountain range, one of the oldest fold mountain systems globally. The geological processes involved in the formation of the Aravallis led to the concentration of non-ferrous metallic minerals like copper (Khetri), zinc, and lead (Zawar). Additionally, the sedimentary basins in this region yield significant deposits of mica, gypsum, rock salt, and petroleum (Gujarat).

5. The Himalayan Mineral Belt: Being a young fold mountain system, the Himalayas are tectonically active and less explored for major mineral deposits. However, some tertiary coal, copper, lead, and zinc deposits are found in scattered pockets. The rugged terrain and environmental fragility also limit extensive mining activities.

In conclusion, the distribution of India's major mineral belts is a direct reflection of its complex geological evolution. The ancient crystalline rocks of the Peninsular Shield are the primary source of metallic minerals, while the Gondwana sedimentary basins hold vast coal reserves. The younger sedimentary formations contribute petroleum and natural gas, and specific geological processes have concentrated non-ferrous metals in regions like the Aravallis. This strong correlation underscores how geological structure dictates mineral wealth.