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Pyroclastic Deposits in Floor-Fractured Craters: A Unique Style or Lunar Basaltic Volcanism?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 [1] identified and classified over 200 examples. Low albedo pyroclastic deposits originate from depressions along the fractures in many of these craters.
Document ID
20130001895
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Allen, Carlton C. (NASA Johnson Space Center Houston, TX, United States)
DonaldsonHanna, Kerri L. (Brown Univ. Providence, RI, United States)
Pieters, Carle M. (Brown Univ. Providence, RI, United States)
Moriarty, Daniel P. (Brown Univ. Providence, RI, United States)
Greenhagen, Benjamin T. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Bennett, Kristen A. (Arizona State Univ. Tempe, AZ, United States)
Kramer, Georgiana Y. (Lunar and Planetary Inst. Houston, TX, United States)
Paige, David A. (California Univ. Los Angeles, CA, United States)
Date Acquired
August 27, 2013
Publication Date
January 1, 2013
Subject Category
Geophysics
Report/Patent Number
JSC-CN-27805
Meeting Information
Meeting: Lunar and Planetary Science Institute Conference
Location: The Woodlands, TX
Country: United States
Start Date: March 18, 2013
End Date: March 22, 2013
Distribution Limits
Public
Copyright
Public Use Permitted.

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