Zobrazeno 1 - 10
of 78
pro vyhledávání: '"John E. Guest"'
Publikováno v:
Active Lavas ISBN: 9781003325178
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d194ecc8cf3013701ea6265960d79e78
https://doi.org/10.4324/9781003325178-4
https://doi.org/10.4324/9781003325178-4
Publikováno v:
Geological Society, London, Memoirs. 44:1-3
The Azores is an archipelago in the Atlantic Ocean composed of nine volcanic islands. The islands are dispersed along a general WNW–ESE trend crossing the Mid-Atlantic Ridge in the area where the Eurasian, African and North American lithospheric pl
Publikováno v:
Journal of Volcanology and Geothermal Research. :52-62
We describe and compare two types of pahoehoe on Mount Etna: one similar to an Hawaiian inflated flow field consisting of tumuli, lava rises and lava rise pits; and the other a coalescing complex of rootless centres of ephemeral boccas fed from lava
Autor:
John E. Guest, Roberto Bugiolacchi
Publikováno v:
Icarus. 197:1-18
This paper presents an updated stratigraphical and compositional study of the exposed maria within the Imbrium basin on the Moon. Clementine multispectral data were employed to derive TiO2 and FeO wt% abundance estimates of potentially distinct basal
Publikováno v:
Meteoritics & Planetary Science. 41:479-488
We have studied the mare basalts of Mare Humorum and southeastern Procellarum (30W-50W, 0-40S). One hundred and nine basaltic units have been identified from differences in their FeO wt% and TiO2 wt% content, and variations in crater densities. Crate
Publikováno v:
Meteoritics & Planetary Science. 41:285-304
Three major periods of basaltic activity characterize the infill of the basins. Each of these periods was itself punctuated by discrete phases of widespread magma eruptions: three during both the Late Imbrian Epoch and the early Eratosthenian Period
Autor:
John E. Guest, Peter M. Grindod
Publikováno v:
Journal of Maps. 2:103-117
Please click here to download the map associated with this article. A geological map of the Aglaonice region, Venus, is presented. It is the first published attempt at mapping at the full limit of resolution of the available NASA Magellan mission dat
Autor:
John E. Guest, Ellen R. Stofan
Publikováno v:
Journal of Volcanology and Geothermal Research. 142:193-205
Slab-crusted flows on Mount Etna, Sicily are defined here as those whose crust has ridden on the flow core without significant disruption or deformation and have a high length to width ratio. They typically erupt from ephemeral boccas as late-stage p
Publikováno v:
Icarus. 173:312-321
We have quantitatively assessed the resurfacing sources and styles in eighteen mapped venusian quadrangles, about 30% of the venusian surface. Each quadrangle was split into 0.5° by 0.5° boxes, which were then identified as corona materials, large
Publikováno v:
Geophysical Research Letters. 28:4267-4270
We have conducted an extensive survey of the Magellan data to reassess the population of coronae. We identify a new type of coronae, here referred to as 'Type 2 coronae', having the same basic morphology as previously identified coronae (Type 1), but