The American journal of science (1913) (18126357856)

Title: The American journal of science

Identifier: americanjourna4351913newh (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

Text Appearing Before Image:

F. A. Perret—Some Kilauean Ejectamenta. 617 and guests of the Volcano House, on seeing these drops, soon picked up others beside the trail leading down into the crater, while, by a curious coincidence, an assistant of Professor Brigham, in ascending Ilualalai, found a number of similar ejections, but which are of a larger and coarser habit of forma- tion. It seems probable, therefore, that their production is quite common to volcanoes of this type and that it is the result Fig.

Text Appearing After Image:

Fig. Fine and coarse lava filaments. (Pele's Hair.) of a secondary phase of activity in localities of comparatively recent eruption. The most common and the most continuously formed of all Kilauean ejecta are the vitreous filaments, commonly called Pele's Hair—so well known and so frequently described as to render superfluous a detailed consideration here. Very fine and very coarse specimens are together reproduced in fig. 7, the straight, thick wire having been found by Miss Thurston, and kindly presented to the writer. The sponge lava or " thread lace scoria " has also been fully described,* and, furthermore, all of this material observed by the writer lay upon the pahoehoe lava in a continuous stratum, indicating formation in situ and therefore not to be included under the head of ejectamenta. * Dana, " Characteristics of Volcanoes."

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1913

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