Richardton meteorite

Richardton meteorite
Type Chondrite
Class Ordinary chondrite
Group H5
Country United States
Region Richardton, North Dakota
Coordinates 46°37′30″N 102°16′17″W / 46.62500°N 102.27139°WCoordinates: 46°37′30″N 102°16′17″W / 46.62500°N 102.27139°W
Observed fall Yes
Fall date 1918-06-30
TKW 90 kilograms (200 lb)
Strewn field Yes

The Richardton meteorite is a 90 kilograms (200 lb) H5 Ordinary chondrite that was seen to fall at 21:48 on 19 June 1918 between Mott, North Dakota and Richardton, North Dakota, United States.[1][2]

Pieces were found in a strewn field of about 9 miles (14 km) by 5 miles (8.0 km) centred on 46°37′30″N 102°16′17″W / 46.62500°N 102.27139°W and oriented north-south.[2] As of December 2012 pieces of this meteorite were for sale online at up to US$80/g.[3]

In 1960 John Reynolds discovered that the Richardton meteorite had an excess of 129Xe, a result of the presence of 129I in the solar nebula.[4][5]

See also

References

  1. "Richardton". Meteoritical Bulletin Database. Meteoritical Society. Retrieved 24 December 2012.
  2. 2.0 2.1 Quirke, T. T. (Sep–Oct 1919). "The Richardton Meteorite". The Journal of Geology (The University of Chicago Press) 27 (6): 431–448. Bibcode:1919JG.....27..431Q. doi:10.1086/622670. Retrieved 24 December 2012.
  3. "Richardton". Meteorites and Related Geology Specimens for Sale. New England Meteoritical Services. Retrieved 24 December 2012.
  4. Reynolds, J. (31 March 1960). "Isotopic Composition of Primordial Xenon". Physical Review Letters 4 (7): 351–354. Bibcode:1960PhRvL...4..351R. doi:10.1103/PhysRevLett.4.351.
  5. "John Hamilton Reynolds, 77; Improved Study of Cosmic Ages". Retrieved 25 December 2012.

External links