词条 | Boxhole crater |
释义 |
| name = Boxhole crater | other_name = | photo = Boxhole meteorite crater.jpg | photo_size = | photo_alt = | photo_caption = Boxhole meteorite crater, July 2011 | map = Northern Territory | map_alt = | map_caption = Location of the crater in the Northern Territory | map_size = | location = | label = | label_position = | coordinates = {{coord|22|36|45|S|135|11|43|E|region:AU-NT_type:landmark_scale:3000|display=inline,title}} | coordinates_ref = | confidence = Confirmed | diameter = {{convert|170|m|ft|abbr=on}} | depth = | rise = | imp_size = | age = 5.4 ± 1.5 ka Holocene | exposed = Yes | drilled = No | bolide = | translation = | language = | pronunciation = | topo = | access = | country = {{AUS}} | state = Northern Territory | province = | district = | municipality = }}Boxhole is a young impact crater located approximately 180 km (265 km by road) north-east of Alice Springs in the Northern Territory, Australia.[1] It is 170 metres in diameter and its age is estimated to be 5,400 ± 1,500 years based on the cosmogenic 14C terrestrial age of the meteorite,[2] placing it in the Holocene. The crater is exposed to the surface.[3] DescriptionIn 1937 Joe Webb, a shearer at Boxhole sheep station, took geologist Cecil Madigan to examine the crater. Madigan discovered nickel-bearing metallic fragments and iron shale-balls similar to those found at Henbury to the south of Alice Springs. A later search found additional meteoritic metal including an iron mass of 181 pounds (82 kg) ,[4] now in the Natural History Museum, London. References{{portal|Geology|Northern Territory|Prehistory of Oceania}}1. ^{{cite book |title=Australia's Meteorite Craters |last=Bevan |first=Alex |author2=McNamara Ken |year=1993|publisher=Western Australian Museum |location=Perth |isbn=0-7309-5926-0 |page=15 }} 2. ^Kohman T. P. and Goel P.S. 1963. Terrestrial ages of meteorites from cosmogenic 14C. In: Radioactive Dating, pp. 395–411. International Atomic Energy Agency, Vienna. 3. ^{{cite Earth Impact DB | name = Boxhole| accessdate = 2009-08-19}} 4. ^{{cite book |title=Meteorite Craters |last=Mark |first=Kathleen |year=1987 |publisher=The University of Arizona Press |location=Tucson|isbn=0-8165-1568-9 |page=90}} Further reading
External links
4 : Impact craters of Australia|Holocene impact craters|Quaternary Australia|Geology of the Northern Territory |
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