Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 12 September 1997:
Vol. 277. no. 5332, pp. 1639 - 1642
DOI: 10.1126/science.277.5332.1639
Prev | Table of Contents | Next

Reports

Explosive Basaltic Volcanism from Cerro Negro Volcano: Influence of Volatiles on Eruptive Style

Kurt Roggensack, * Richard L. Hervig, dagger Steven B. McKnight, ddagger Stanley N. Williams

The 1992 and 1995 basaltic eruptions of Cerro Negro volcano, Nicaragua, had contrasting eruptive styles. Although they were nearly identical in composition, the 1992 eruption was explosive, producing a 7-kilometer-high sustained ash column, whereas the 1995 eruption was essentially effusive. The differences in water and carbon dioxide contents of melt inclusions from the two eruptions define minimum saturation pressures and show how decompression of initially similar magmas influences eruptive style. Before eruption, the explosive 1992 magma retained water and carbon dioxide while ascending to a moderate crustal level (about 6 kilometers), whereas the nonexplosive 1995 magma lost all carbon dioxide by degassing during ascent to shallow crustal levels (about 1 to 2 kilometers).

Department of Geology, Box 871404, Arizona State University, Tempe, AZ 85287-1404, USA.
*   To whom correspondence should be addressed.

dagger    Also at Center for Solid State Science, Box 871704, Arizona State University, Tempe, AZ 85287-1704, USA.

ddagger    Present address: Friends Seminary, 222 East 16 Street, New York, NY 10003, USA.

Read the Full Text


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Subduction-related Volatile Recycling and Magma Generation beneath Central Mexico: Insights from Melt Inclusions, Oxygen Isotopes and Geodynamic Models.
E. R. Johnson, P. J. Wallace, H. Delgado Granados, V. C. Manea, A. J. R. Kent, I. N. Bindeman, and C. S. Donegan (2009)
J. Petrology 50, 1729-1764
   Abstract »    Full Text »    PDF »
Petrogenesis of Sr-rich adakitic rocks at volcanic arcs: insights from global variations of eruptive style with plate convergence rates and surface heat flux.
G. F. Zellmer (2009)
Journal of the Geological Society 166, 725-734
   Abstract »    Full Text »    PDF »
Introduction to Minerals, Inclusions and Volcanic Processes.
K. D. Putirka (2008)
Reviews in Mineralogy and Geochemistry 69, 1-8
   Full Text »    PDF »
Fluid Inclusion Thermobarometry as a Tracer for Magmatic Processes.
T. H. Hansteen and A. Klugel (2008)
Reviews in Mineralogy and Geochemistry 69, 143-177
   Full Text »    PDF »
Magma Ascent Rates.
M. J. Rutherford (2008)
Reviews in Mineralogy and Geochemistry 69, 241-271
   Full Text »    PDF »
Melt Inclusions in Basaltic and Related Volcanic Rocks.
A. J.R. Kent (2008)
Reviews in Mineralogy and Geochemistry 69, 273-331
   Full Text »    PDF »
Volatile Abundances in Basaltic Magmas and Their Degassing Paths Tracked by Melt Inclusions.
N. Metrich and P. J. Wallace (2008)
Reviews in Mineralogy and Geochemistry 69, 363-402
   Full Text »    PDF »
Experimental Crystallization of a High-K Arc Basalt: the Golden Pumice, Stromboli Volcano (Italy).
I. DI CARLO, M. PICHAVANT, S. G. ROTOLO, and B. SCAILLET (2006)
J. Petrology 47, 1317-1343
   Abstract »    Full Text »    PDF »
Are Arc Basalts Dry, Wet, or Both? Evidence from the Sumisu Caldera Volcano, Izu-Bonin Arc, Japan.
Y. TAMURA, K. TANI, O. ISHIZUKA, Q. CHANG, H. SHUKUNO, and R. S. FISKE (2005)
J. Petrology 46, 1769-1803
   Abstract »    Full Text »    PDF »
The activity of silica, water, and the equilibration of intermediate and silicic magmas.
I. S. E. Carmichael and I. S.E. Carmichael (2004)
American Mineralogist 89, 1438-1446
   Abstract »    Full Text »    PDF »
Rejuvenation of the Fish Canyon magma body: A window into the evolution of large-volume silicic magma systems.
O. Bachmann and G. W. Bergantz (2003)
Geology 31, 789-792
   Abstract »    Full Text »    PDF »
Role of H2O in subduction-zone magmatism: New insights from melt inclusions in high-Mg basalts from central Mexico.
P. Cervantes and P. J. Wallace (2003)
Geology 31, 235-238
   Abstract »    Full Text »    PDF »
Experimental constraints on volatile abundances in arc magmas and their implications for degassing processes.
B. Scaillet and M. Pichavant (2003)
Geological Society, London, Special Publications 213, 23-52
   Abstract »    PDF »
Mantle genesis and crustal evolution of primitive calc-alkaline basaltic magmas from the Lesser Antilles arc.
M. Pichavant and R. Macdonald (2003)
Geological Society, London, Special Publications 219, 239-254
   Abstract »    PDF »
Magmatic Degassing of Volatiles and Ore Metals into a Hydrothermal System on the Modern Sea Floor of the Eastern Manus Back-Arc Basin, Western Pacific.
K. Yang, K. Yang, and S. D. Scott (2002)
Economic Geology 97, 1079-1100
   Abstract »    Full Text »    PDF »
Genesis of primitive, arc-type basalt: Constraints from Re, Os, and Cl on the depth of melting and role of fluids.
K. Righter, J. T. Chesley, and J. Ruiz (2002)
Geology 30, 619-622
   Abstract »    Full Text »    PDF »
Isotopic and elemental partitioning of boron between hydrous fluid and silicate melt.
R. L. Hervig, G. M. Moore, L. B. Williams, S. M. Peacock, J. R. Holloway, and K. Roggensack (2002)
American Mineralogist 87, 769-774
   Abstract »    Full Text »    PDF »
Remote sensing of CO2 and H2O emission rates from Masaya volcano, Nicaragua.
M. R. Burton, C. Oppenheimer, L. A. Horrocks, and P. W. Francis (2000)
Geology 28, 915-918
   Abstract »    Full Text »    PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)