<Tr> <Td> 1 to 0 </Td> <Td> 0.5--1 mm </Td> <Td> 0.020--0.039 in </Td> <Td> Coarse sand </Td> </Tr> <Tr> <Td> 2 to 1 </Td> <Td> 0.25--0.5 mm </Td> <Td> 0.010--0.020 in </Td> <Td> Medium sand </Td> </Tr> <Tr> <Td> 3 to 2 </Td> <Td> 125--250 μm </Td> <Td> 0.0049--0.010 in </Td> <Td> Fine sand </Td> </Tr> <Tr> <Td> 4 to 3 </Td> <Td> 62.5--125 μm </Td> <Td> 0.0025--0.0049 in </Td> <Td> Very fine sand </Td> </Tr>

When does deposition occur during the overall erosion process