Complex Explosive Volcanic Activity on the Moon Within Oppenheimer Crater
Icarus 273 (2016) 296–314 Contents lists available at ScienceDirect Icarus journal homepage: www.elsevier.com/locate/icarus Complex explosive volcanic activity on the Moon within Oppenheimer crater ∗ Kristen A. Bennett a, ,BrionyH.N. Horgan b, Lisa R. Gaddis c, Benjamin T. Greenhagen d, Carlton C. Allen e,PaulO. Hayne f, James F. Bell III a, David A. Paige g a School of Earth and Space Exploration, Arizona State University. ISTB4 Room 795, 781 Terrace Mall, Tempe AZ 85287, United States b Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47907, United States c Astrogeology Science Center, U.S. Geological Survey, 2255 N. Gemini Drive, Flagstaff, AZ 86001, United States d Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Rd, Laurel, MD 20723, United States e NASA Johnson Space Center, Emeritus, 2101 NASA Road 1, Houston, TX 77058, United States f NASA Jet Propulsion Laboratory, 4800 Oak Grove Dr, Pasadena, CA 91109, United States g Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, 595 Charles E Young Dr E, Los Angeles, CA 90095, United States a r t i c l e i n f o a b s t r a c t Article history: Oppenheimer crater is a floor-fractured crater located within the South Pole–Aitken basin on the Moon, Received 27 July 2015 and exhibits more than a dozen localized pyroclastic deposits associated with the fractures. Localized Revised 10 December 2015 pyroclastic volcanism on the Moon is thought to form as a result of intermittently explosive Vulcanian Accepted 3 February 2016 eruptions under low effusion rates, in contrast to the higher-effusion rate, Hawaiian-style fire fountaining Available online 10 February 2016 inferred to form larger regional deposits.
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