MeteoriteFalls What fell near…

Mount Tazerzait

Seen to fall in 1991 in Niger · 110 kg recovered · L5

Mount Tazerzait is the heaviest of the six falls recorded in Niger. It is the second-heaviest of the 76 L5 falls.

250 km500 km750 km123456SeldebourakAïrTillaberiBirni N'konniDossoKarewar
Recorded position
18.700° N, 4.800° E

The map is centred on Mount Tazerzait. Rings every 250 km; numbers match the table below.

Nearest recorded falls

The closest recorded fall to Mount Tazerzait is Aïr, 379 km to the east. No other fall in the record lies within 250 km of Mount Tazerzait.

#FallYearClassRecoveredDistance
1Aïr1925L624 kg379 km east
2Seldebourak1947H5150 g460 km north
3Birni N'konni1923H4560 g551 km south
4Tillaberi1970L63 kg605 km south-west
5Dosso1962L61.2 kg652 km south
6Karewar1949L6180 g692 km south

What L5 means

L5 is the label for an ordinary chondrite with low total iron, petrologic type 5, moderately heated on its parent body. Mount Tazerzait carries about 27 times the median recovered mass of L5 falls. The nearest other L5 fall is Ouadangou in Burkina Faso, 819 km away. In date order among L5 falls, the one before Mount Tazerzait is Campos Sales (1991, Brazil) and the one after is Baszkówka (1994, Poland).

L5 medianMount Tazerzait, 110 kg1 g10 g100 g1 kg10 kg100 kg1 t10 t100 trecovered mass, log scale
Dark ticks: 76 L5 falls, median 4.1 kg (dotted). Grey: all others.

Mount Tazerzait in Niger’s record

In date order Mount Tazerzait is number 4 of the 6 falls recorded in Niger, which run from 1925 to 2004. The fall recorded before Mount Tazerzait in Niger is Tillaberi (1970); the next is Pétèlkolé (1995).

193019401950196019701980199020002010Mount Tazerzait, 1991
Bigger dots carry more recovered mass.

The 1990s

Mount Tazerzait is one of 54 falls dated to the 1990s. Elsewhere, the record lists four other falls in 1991, among them Campos Sales in Brazil, Tahara in Japan, Glatton in the United Kingdom.