Publications
Filter Total Items: 2763
Kilauea Volcano: The 1967-68 summit eruption
On 5 November 1967 Kilauea volcano began erupting lava from vents on the floor of its summit pit crater. Halemaumau, 170 meters deep. This eruption ended nearly 2 years of the quiescence that followed a short lived eruption on the east rift zone of Kilauea in December 1965 (1). The 1967-68 eruption was the first activity in Halemaumau since July 1961 (2). The eruption ceased on 13 July 1968 follo
Authors
Willie Tomoni Kinoshita, R. Y. Koyanagi, Thomas L. Wright, Richard S. Fiske
Inflation of Kilauea Volcano prior to its 1967-1968 eruption: Vertical and horizontal deformation give clues regarding the structure of an active Hawaiian volcano
No abstract available.
Authors
Richard S. Fiske, Willie Tomoni Kinoshita
Distribution of scandium between coexisting biotite and hornblende in igneous rocks
Scandium analyses of more than 90 pairs of coexisting biotite and hornblende from igneous rocks of various provinces (including Southern California, Boulder, Sierra Nevada, Boulder Creek batholiths and the Jemez Mountains volcanic rocks) indicate that the distribution ratio (Kd = Schornblende/Scbiotite) for most samples closely approached that of an equilibrium distribution. Median Kd values for t
Authors
Robert I. Tilling, L. Paul Greenland, D. Gottfried
Nuées Ardentes of the 1968 Eruption of Mayon Volcano, Philippines
Mayon Volcano, southeastern Luzon, began a series of explosive eruptions at 0900 April 21, 1968, and by May 15 more than 100 explosions had occurred, at least 6 people had been killed, and roughly 100 square km had been covered by more than 5 cm of airfall ash, blocky ash flows, and a lava flow. All material crupted was porphyritic augite-hypersthene andesite.Explosions from the summit crater (ele
Authors
James G. Moore, W.G. Melson
Volcanic substructure inferred from dredge samples and ocean-bottom photographs, Hawaii
Ocean-bottom photographs from 18 stations and dredge hauls from 35 stations adjacent to the Island of Hawaii indicate that basaltic pillow lava and pillow fragments are the dominant rock type on the crest and flanks of the submarine rift zone ridges, whereas glassy basalt sand and scoria are the dominant type on the submarine flanks of the volcanoes directly downslope from land. These relations in
Authors
James G. Moore, Richard S. Fiske
Analysis of a 24-Year photographic record of Nisqually glacier, Mount Rainier National Park, Washington
A systematic coverage of Nisqually Glacier by photographs taken from a network of stations on the ground was begun in 1942 to explore the value and limitations of such photographs as an aid in glacier study. Principles developed may be of value elsewhere, especially for the program 'Measurement of Glacier Variations on a World-Wide Basis' of the International Hydrological Decade.
Nisqually Glacie
Authors
Fred M. Veatch
Mineralogy of sulfides from certain Hawaiian basalts
Polymineralic sulfide grains, composed principally of Fe sulfide and Fe-Cu sulfide, with magnetite, have been studied mineragraphically and by electron probe, and interpreted in terms of experimental data for the system Fe-Ni-Cu-S. The three main phases are monosulfide solid solution, a Cu-Fe sulfide (solid solution) with composition near cubanite, and Ti-free magnetite. The grains are believed to
Authors
G. A. Desborough, Alfred T. Anderson, Thomas L. Wright
Article navigation zonal distribution of variations in structural state of alkali feldspar within the Rader Creek pluton, Boulder Batholith, Montana
The granodioritic Rader Creek pluton of the composite Boulder batholith contains microperthitic alkali feldspar of bulk composition Or65 to Or86 with a structurally variable potassic phase. Complete cell parameters, 2V measurements, and bulk composition are given for 11 feldspar samples. The 131 and 131 reflections for these and 58 additional samples show the following structural types in the pota
Authors
Robert I. Tilling