The cassiterite makes up some fraction of the standard sand and river silt there.

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The industry uses regulated amounts of water from the Athabasca River to separate bitumen from the sand.

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When you go to the west of the Mississippi River, they're actually going to have to take sand from offshore, actually deposit it on the seabed and then retransmit it to make the berms on the islands.

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Flood-tide delta: accretionary deposit of sand found on the bay or river side of an inlet and usually formed by tidal currents.

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Likewise, past busy Benaulim and Cavelossim, you will encounter undisturbed golden sand that stretches south to the mouth of the River Sal at Mobor, where itinerant fisherfolk haul in their wares and the Blue Whale beach shack graces one of the most picture-perfect spots in all of Goa.

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Sand bar: accretionary deposit of sand formed across a river mouth or bay by wave action and joined to the shore at both ends.

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