publication . Article . 2000

The chemically zoned 1949 eruption on La Palma (Canary Islands): Petrologic evolution and magma supply dynamics of a rift zone eruption

Kaj Hoernle; Andreas Klügel; Hans-Ulrich Schmincke; James D. L. White;
Open Access
  • Published: 10 Mar 2000 Journal: Journal of Geophysical Research: Solid Earth, volume 105, pages 5,997-6,016 (issn: 0148-0227, Copyright policy)
  • Publisher: American Geophysical Union (AGU)
  • Country: Germany
Abstract
The 1949 rift zone eruption along the Cumbre Vieja ridge on La Palma involved three eruptive centers, 3 km spaced apart, and was chemically and mineralogically zoned. Duraznero crater erupted tephrite for 14 days and shut down upon the opening of Llano del Banco, a fissure that issued first tephrite and, after 3 days, basanite. Hoyo Negro crater opened 4 days later and erupted basanite, tephrite, and phonotephrite, while Llano del Banco continued to issue basanite. The eruption ended with Duraznero erupting basanite with abundant crustal and mantle xenoliths. The tephrites and basanites from Duraznero and Llano del Banco show narrow compositional ranges and defi...
Subjects
free text keywords: Earth-Surface Processes, Ecology, Earth and Planetary Sciences (miscellaneous), Space and Planetary Science, Palaeontology, Forestry, Aquatic Science, Atmospheric Science, Soil Science, Geochemistry and Petrology, Geophysics, Oceanography, Water Science and Technology, Geology, Tephrite, Xenolith, Igneous rock, Magma, Rift, Rift zone, Basanite, Geochemistry, Volcano, geography.geographical_feature_category, geography
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EuroMarine
European Marine Science
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