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Accession Number N20130001895
Title Pyroclastic Deposits in Floor-Fractured Craters: A Unique Style or Lunar Basaltic Volcanism.
Publication Date 2013
Media Count 2p
Personal Author B. T. Greenhagen C. C. Allen C. M. Pieters D. A. Paige D. P. Moriarty G. Y. Kramer K. A. Bennett K. L. DonaldsonHanna
Abstract The lunar maria were formed by effusive fissure flows of low-viscosity basalt. Regional pyroclastic deposits were formed by deep-sourced fire-fountain eruptions dominated by basaltic glass. Basaltic material is also erupted from small vents within floor-fractured impact craters. These craters are characterized by shallow, flat floors cut by radial, concentric and/or polygonal fractures. Schultz identified and classified over 200 examples. Low albedo pyroclastic deposits originate from depressions along the fractures in many of these craters.
Keywords Basalt
Chemical composition
Lunar maria

Source Agency National Aeronautics and Space Administration
NTIS Subject Category 55A - Aeronomy
48F - Geology & Geophysics
Corporate Author National Aeronautics and Space Administration, Houston, TX. Lyndon B. Johnson Space Center.
Document Type Conference proceedings
Title Note N/A
NTIS Issue Number 1318
Contract Number N/A

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