منابع مشابه
Basaltic explosive volcanism: Constraints from deposits and models
Basaltic pyroclastic volcanism takes place over a range of scales and styles, from weak discrete Strombolian explosions (!10–10 kg s) to Plinian eruptions of moderate intensity (10–10 kg s). Recent well-documented historical eruptions from Etna, Kı̄lauea and Stromboli typify this diversity. Etna is Europe’s largest and most voluminously productive volcano with an extraordinary level and diversit...
متن کاملExplosive Volcanism on Hecates Tholus, Mars' Investigation of Eruption Conditions
Evidence is presented supporting the identification of a discrete, well-preserved air fall deposit generated by explosive volcanism on Mars. The deposit is located immediately to the west of the summit caldera of Hecates Tholus (32øN, 209øW), the northernmost of the three volcanic constructs in the Elysium Planitia region. The absence of superposed impact craters larger than the resolution limi...
متن کاملTHE NILI PATEA CALDERA; EVOLVING MAGMAS, EXPLOSIVE ERUPTIONS AND HYDROTHERMAL DEPOSITS ON MARS. P. Fawdon
HYDROTHERMAL DEPOSITS ON MARS. P. Fawdon *1 , J. R. Skok 2 , M.R. Balme 1 , C. Vye-Brown 3 , D.A. Rothery 1 ,C. J. Jordan 4 1 Department of Physical Sciences, The Open University, Walton Hall, Milton Keynes, UK. MK7 6AA; [email protected], 2 Department of Geology & Geophysics, Louisiana State University, Baton Rouge, LA 70803., 3 British Geological Survey, Murchison House, West Mains Road...
متن کاملExplosive volcanism on Mercury: Analysis of vent and deposit morphology and modes of eruption
The MESSENGER mission revealed, for the first time, conclusive evidence of explosive volcanism on Mercury. Several previous works have cataloged the appearance and location of explosive volcanism on the planet using a variety of identifying characteristics, including vent presence and deposit color as seen in multispectral image mosaics. We present here a comprehensive catalog of vents of likel...
متن کاملPossible distinguishing characteristics of very deepwater explosive and effusive silicic volcanism
Recent seafloor exploration has shown that volcanic-hosted massive sulfides (VHMS) occur in modern silicic calderas formed by highly explosive eruptions at substantial water depths. Sampling of these has so far been restricted to surficial deposits. Ancient analogs provide a time-integrated view of the structure and fill of deepwater calderas, but constraints on paleo-water depths have previous...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2003
ISSN: 0094-8276
DOI: 10.1029/2002gl016022