...Kurt Roggensack Abstract This study demonstrates that crystal size may be used to temporally constrain melt inclusion data. This approach is applied to the 1974 Vulcanian-type eruption of Volcan Fuego in Guatemala to study magma conditions immediately prior to eruption. The 1974 ash deposit shows...

...Richard K. Vessell; David K. Davies Abstract Volcaniclastic sedimentation during and subsequent to the 1971-74 eruption cluster of the Volcano Fuego in Guatemala has occurred in four distinct phases which are part of a 15 to 25 year cycle of sedimentation. In phase 1, the eruption cluster generated...

...DAVID K. DAVIES; MICHAEL W. QUEARRY; SAMUEL B. BONIS Abstract Glowing avalanches from the 1974 eruption of the volcano Fuego, Guatemala, deposited between 0.005 and 0.01 km 3 of nonimbricated, nongraded, nonwelded debris on the southern flanks of the volcano. Avalanches emerged from notches...

...William I. Rose, Jr. Abstract The initial concentrations of S (1,600 ppm) and Cl (1,100 ppm) in the high-Al 2 O 3 basaltic magma from the 1974 eruptions of Fuego Volcano, Guatemala, were inferred from trapped glass inclusions in phenocrysts. During the explosive eruptions, as much as 33% of the S...

...Alfred T. Anderson Abstract Millimeter-sized plagioclase phenocrysts were explosively erupted in high-alumina basaltic ash from Fuego volcano, Guatemala on October 14, 1974. The crystals have unzoned, patchy-zoned and oscillatory-zoned parts. Unzoned, inclusion-poor cores, up to 2 mm thick have...

... on quantitative Raman analysis of the vapor bubbles in MI from the 1959 Kilauea Iki (Hawaii), 1960 Kapoho (Hawaii), 1974 Fuego volcano (Guatemala), and 1977 Seguam Island (Alaska) eruptions. We found that the bubbles typically contain 40 to 90% of the total CO 2 in the MI. Reconstructing the original CO 2 content...

... measurements of the glass composition, CO 2 density in the vapor bubble, and volumes of the melt inclusion and vapor bubble. We evaluate vapor-bubble growth in olivine-hosted melt inclusions from the 1977 Seguam and 1974 Fuego eruptions. The samples are well studied and span a range of mafic...

... on the continentward slope of the mountain belt between the Andean orogenic belt, and the extra-Andean flats towards the north and east. The contractional tectonism along the Patagonian Cordillera may be occurring in at least two geographically different belts: a western (southern in Tierra del Fuego) belt, located...

... with considerable documentation. The autobiography, written at an advanced age and intended only for Darwin’s family, was incomplete and somewhat in error. © 2005 History of Earth Sciences Society 2005 History of Earth Sciences Society Charles Darwin Patagonia Tierra del Fuego Andean Cordillera...

... frequency interference in the analog data lines which has been corrected. The excursion in both legs of tilt around data point A is coincident with a small eruption of Volcan Fuego. Another minor eruption occurred at point B, and was preceded by a period of anomalous seismic activity beneath the volcano...

.... ; Woodruff , L. G. ; and Bonis , S. B. 1978 . The October 1974 basaltic tephra from Fuego Volcano: description and history of the magma body . J. Volcanol. Geotherm. Res. 4 ( 1–2 ): 3 – 53 . Anderson , A. T. 1979 . Water in some hypersthenic magmas . J. Geol. 87 ( 5 ): 509 – 531...