Abstract
“THE Stone Reefs of Brazil, their Geological and Geographical Relations, with a Chapter on the Coral Reefs,” is the title of a memoir by Mr. J. C. Branner (Bull. Mus. Comp. Zool. Harvard Coll., vol. xliv., geological series, vol. vii.). These stone reefs form striking features-along the Brazilian coast from near Ceará to Porto Seguro; they are formed of sandstone, in places almost a quartzite, and stand flush with the water at high tide, while at low tide they are left exposed like long, low, flat-topped walls. The ports and towns behind these reefs owe their existence to them, as they form natural breakwaters, usually standing across the mouths of streams and estuaries.
Article PDF
Rights and permissions
About this article
Cite this article
Geological Notes . Nature 70, 334–335 (1904). https://doi.org/10.1038/070334a0
Issue Date:
DOI: https://doi.org/10.1038/070334a0