Monthly Bulletin of the Hawaiian Volcano Observatory (U.S. Geological Survey) Volume 4-5

Monthly Bulletin of the Hawaiian Volcano Observatory (U.S. Geological Survey) Volume 4-5

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1916 edition. Excerpt: ...lake. Sinking predominated over rising. At the west end of the north rampart there was a high grotto hung with four-foot stalactites and surmounted by an eight-foot banner of flame. Another high grotto was in action at the west side of the southeast cove. The eastern dome there had grown very high and was nearly closed over. The driblet cone on the north bench was hissing and a filagree cone glowed on the edge of the north rampart. The wall around the northwest arm appeared five feet high, and the shore bombardment there and at the north and southeast coves was flinging lava over the bank so as to build it up. Flaring chimneys appeared on the north and south sides of the west arm. There was a spurting cone west of the northwest pond. South of the east promontory a large block of the bank of the lake fell in. Confined gas pressure was indicated by pufling noises. On December 13 at 11:30 a. m. there was the thunderous pufling of confined gas. The lake appeared five feet below the lower bench and five fountains were in action. A high spatter rampart was building at the west end of the southwest cove. Much Pele 's hair was floating up from spurts of the southeast cone. About 3:30 p. m. the lake overflowed the southeast cove. On Thursday, December 14. measurement made the depth of the lake surface below the southwest rim of the pit 138 feet, indicating a rise of only two feet in a week. The northern summit of the south island crag was 50 feet above the lake, and the summit of the crag-mass was 78 feet high. The edge of the floor in contact with the wall of the pit under the south station was only three feet above lake level. On this date the lake was high, the pressure of confined gas was strong, the streaming was swift around the...
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Product details

  • Paperback | 168 pages
  • 189 x 246 x 9mm | 313g
  • United States
  • English
  • black & white illustrations
  • 1236781465
  • 9781236781468