Ioffe (crater)

Ioffe
LRO WAC image
Coordinates14°24′S 129°12′W / 14.4°S 129.2°W / -14.4; -129.2
Diameter86 km
DepthUnknown
Colongitude130° at sunrise
FormationLate Imbrian[1]
EponymAbram F. Ioffe
Oblique Lunar Orbiter 5 image
(lines at left are blemishes on original image)

Ioffe is a lunar impact crater on the far side of the Moon.[2] It lies to the south of the walled plain named Hertzsprung, and is attached to the southwestern outer rim of Fridman. Only a short stretch of terrain separates Ioffe from Belopol'skiy to the southeast.

This formation dates to the Late Imbrian period on the lunar geologic timescale.[1] It is a relatively youthful crater, with a well-defined outer rim and a terraced inner wall. Nevertheless, the outer rim has been marked by subsequent impacts. A smaller crater lies along the rim edge where Ioffe is joined to Fridman. There is also a small craterlet along the northwestern rim.

The interior floor is relatively level, with the exception of a low, uneven ridge of material that stretches from just east of the midpoint to the south-southwestern inner wall. The infrared spectrum of pure crystalline plagioclase has been identified on the central ridge.[3] The interior is free of impacts of note.

This crater was named after Abram Ioffe, a prominent Russian/Soviet scientist.

References

  1. 1 2 Kirchoff, Michelle R.; et al. (July 2013). "Ages of large lunar impact craters and implications for bombardment during the Moon's middle age". Icarus. 225 (1): 325–341. Bibcode:2013Icar..225..325K. doi:10.1016/j.icarus.2013.03.018. USGS epoch.
  2. ↑ Moore, Patrick (2000). The Data Book of Astronomy. CRC Press. p. 68. ISBN 978-1-4200-3344-1. Listed as 'Joffe'.
  3. ↑ Donaldson Hanna, K. L.; et al. (July 2014). "Global assessment of pure crystalline plagioclase across the Moon and implications for the evolution of the primary crust". Journal of Geophysical Research: Planets. 119 (7): 1516–1545. Bibcode:2014JGRE..119.1516D. doi:10.1002/2013JE004476.

Sources