It shows the remnants of a delta, and this picture tells us something: water was abundant and stayed founting at the surface for a very long time.
자투리를 보여주고 있지만, 무언가를 말해주고 있습니다: 물이 풍부했고, 지면에서 솟아오르며  오랫동안 머물렀습니다.