| 1 | Placer mining: Oldest method of recovering gold from alluvial deposits. | |
| 2 | The slide terminates in a brown fan that extends into the Bailong River. | |
| 3 | There into the sea on the continental shelf of alluvial river delta formation. | |
| 4 | Three main rock types make up the geology of Singapore: igneous, sedimentary and alluvium. Where is the main source of granite found? | |
| 5 | A continuation of these rocks is believed to run deep below the thick alluvial deposits that form the plains of Punjab. |
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