2. Classification of Resources

Resources can be classified in several ways: one the bases of (i) renewability, (ii) origin and (iii) utility. The objective of classification would primarily decide how we put a resource under a particular category.

Figure 1: Classification of Resources Figure 2: Global share of recoverable coal reserves Table 1 – Distribution of coal across continents Table 2: Estimations for different types of coal based on formation Table 3: Gondwana coalfields 3.2. Petroleum Table 4: Tertiary coalfields Figure 5: Worldwide Oil Distribution Figure 6: Share of Organization of the Petroleum Exporting Countries (OPEC) in world crude oil reserves 2012 3.3. Natural Gas Figure 7: Countries with largest proved natural gas reserves Figure 8: World Shale Gas Table 5: List of top 10 countries by recoverable shale gas Figure 9: Major coalbed Methane reserves 3.4. India – Petroleum – Petroleum and Natural Gas Table 6: Reserves of Crude Oil in India (2013)Table 7: Reserves of Natural Gas in India (2013)Figure 10: sedimentary Basin of India Figure 11: Major Oil and Gas discoveries after 2000 Table 8: CBM reserves of India Figure 12: Shale oil and gas basins of India Figure 13: Potential Gas Hydrate reserves of India 3.5. Nuclear Figure 14: Known Recoverable Resources of Uranium 2011 Figure 15: Top 10 Uranium producing countries (2010)Figure 17: Uranium occurrence and production centres in India Figure 18: Thorium deposits, India [2] Reserves are identified quantities of “in-place” minerals that are considered recoverable