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(DSC04646) THE EVOLUTION OF PAOAY LAKE: Shoreline processes are capable of generating lakes. Wave action during high tide causes sand and silt deposited offshore to form sandbars. During lowtide, sandbars close to the beach, are dried by the wind and sun, which are transported by strong winds blowing toward the land, to finally build up sand dunes. The famous sand dunes of Ilocos Norte, between Currimao and Casili, most probably began this way. The sand dunes of Ilocos Norte, like any sand dunes of the world, are not static landforms; they change in shape, size and location, depending on the strength and direction of prevailing winds. Protected from easterly winds from the South China Sea, can make them move and change form. Thus, these sand dunes can only migrate to the east and toward the land. During the early stages, landward-moving sand dunes bury lagoons, creeks, brooks, gullies and mounds. Near Nagbacalan, probably a creek draining into the South China Sea, was smothered by the sand dunes, but their migration further eastward was blocked by the remnants of northeast-trending elongated hills of ancient sand dunes that served as the western limits of the creek’s watershed. However, the sand dunes only succeeded in partly burying these land, filling up pre-existing topographic lows near Nagbacalan. Watershed area of the creek that survived started to collect water from rains and groundwater, and formed what is now PAOAY LAKE. (Taken from the site marker)

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1 comment

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    • photo of chanelchat
    • I love this capture you have many beautiful look in your country in philippines many lake and good capture of the see and sky. Have a good week MaryAnn and the best for you.

    • said chanelchat

    • 1 months 22 days ago

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