File:The American journal of science (1909) (17529935944).jpg

Title: The American journal of science
Identifier: americanjourna4271909newh (find matches)
Year: 1880 (1880s)
Authors:
Subjects: Science
Publisher: New Haven : J. D. & E. S. Dana
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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132 Washington—Submarine Eruptions of 1831 and 1891- ing in this connection. These areas of very shoal water are all small, and usually set in groups on a rather shallow "bank." In some cases, as the Keith reef, the bottom is so near the sur- face of the water that the sea breaks. Although many of these are covered with coral, the characters of their submarine topography (shown in detail for some on Chart No. 2127), which resemble those of shoals known to have been the sites of submarine eruptions, lead to the conclusion that these shal- FlG. l
Text Appearing After Image:
low patches have also originated in the same way, and that submarine eruptions have been of comparative frequency in this portion of the Mediterranean. That we have direct knowledge of so few of them need not cause surprise, when it is remembered that many of them probably gave rise to no solid or lasting island, as was true of Foerstner Volcano, and that their periods of activity were often short, so that, as was the case with the eruptions of 1845 and 1846, it is only by the rare chance of some passing vessel (generally the small

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