Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Susan L. Donoghue"'
Publikováno v:
Journal of Quaternary Science. 22:395-410
Volcanic hazards assessments at andesite stratovolcanoes rely on the assessment of frequency and magnitude of past events. The identification and correlation of proximal and distal andesitic tephra, which record the explosive eruptive history, are in
Autor:
Vincent E. Neall, Susan L. Donoghue
Publikováno v:
New Zealand Journal of Geology and Geophysics. 44:439-466
A late Quaternary constructional history of the southeastern Ruapehu ring plain is established from detailed mapping of volcaniclastic sequences preserved over a 200 km2 area northwest of Waiouru. Lahar deposits dominate these sequences and form the
Autor:
Kate Hobson, Robert B. Stewart, Vincent E. Neall, Jérôme A. Lecointre, Elizabeth McClelland, Susan L. Donoghue, R. C. Price, Alan Palmer
Publikováno v:
Bulletin of Volcanology. 61:223-240
The ca. 10,500 years B.P. eruptions at Ruapehu volcano deposited 0.2–0.3 km3 of tephra on the flanks of Ruapehu and the surrounding ring plain and generated the only known pyroclastic flows from this volcano in the late Quaternary. Evidence of the
The volcanic history of Ruapehu during the past 2 millennia based on the record of Tufa Trig tephras
Publikováno v:
Bulletin of Volcanology. 59:136-146
Tufa Trig Formation comprises a sequence of at least 19 andesitic tephras erupted from Mt. Ruapehu (Tongariro Volcanic Centre, New Zealand). Tephras of Tufa Trig Formation are the most recent eruptives from Ruapehu, dated between ca. 1850 years B.P.
Publikováno v:
Geosciences Journal. 8:105-107
A total of one hundred and twenty three gold-bearing mineral deposits in the Charters Towers area west of Townswille, Queensland, Australia were initially classified into four named and unnamed separate vein styles, with different trends and alterati
Publikováno v:
Journal of Volcanology and Geothermal Research. 68:177-191
We describe a magma mingling episode from Ruapehu volcano between two andesite magmas, one very much minor in volume relative to the other. The event acted to trigger eruption of the andesitic Pourahu pyroclastic flow which is preserved in a thick se
Publikováno v:
Journal of the Royal Society of New Zealand. 25:115-206
A stratigraphy and chronology of andesitic tephras erupted from Mt Ruapehu, and other volcanoes of Tongariro Volcanic Centre, is constructed from the tephra record preserved on the southeastern Mt Ruapehu ring plain. Here, tephras of late Quaternary