Scientific Survey of Porto Rico and the Virgin Islands, Vol. 1: Part 4; The Physiography of Porto Rico (Classic Reprint) - Softcover

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Excerpt from Scientific Survey of Porto Rico and the Virgin Islands, Vol. 1: Part 4; The Physiography of Porto Rico

After the dissection of the coastal plains the entire coast suffered a slight submergence, the result possibly of the melting of the continental ice sheets at the end of glacial time. The recent changes which have taken place since this submergence involve the deposition of alluvium along stream courses and its dissection to form terraces, the building of extensive alluvial fans on the south coast, the silting up of bays, and the work of the waves and wind, which has been most pronounced on the north side of the island. Finally there is some evidence of a slight emergence at a veryr recent date.

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