The term delta, however, is not exclusively applied to fluvio-marine deposits; rivers also form Deltas in fresh-water lakes.
"Geology"
James Geikie
The rugged backbone of mysterious Sumatra, descending sharply to the western sea, overlooks a vast alluvial plain on the eastern side, where rice and sugar-cane, coffee and tobacco, flourish between the wide Deltas of sluggish rivers, though rushing streams and wild cascades characterise the opposite shore.
"Through the Malay Archipelago"
Emily Richings
They were now approaching the mighty Amazon, and the river upon which they had hitherto been travelling appeared to divide into many branches, where it formed Deltas with the Amazon.
"Popular Adventure Tales"
Mayne Reid