Meteorite reconnaissance in Saudi Arabia

Beda A. Hofmann, Edwin Gnos, A.J. Timothy Jull, Sönke Szidat, Ayman Majoub, Khalid Al Wagdani, Siddiq N. Habibullah, Mohammed Halawani, Mohammed Hakeem, Mahmoud Al Shanti, Abdulaziz Al Solami

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Abstract

Meteorite searches in Saudi Arabia between 2008 and 2014 yielded 46 meteorites from the Yabrin area (23°N 49°E), 35 meteorites from the Rub' al-Khali sand desert (19°-20°N, 48°-51°E), and 1 meteorite from Al Haddar. No meteorites were found near Hafar al Batin (29°N 45°E). The 82 new meteorites represent ~57 falls comprising 43 ordinary chondrites, 4 carbonaceous chondrites, 2 enstatite chondrites, 3 ureilites, 3 eucrites, 1 acapulcoite, and 1 lunar meteorite. The median of 31 14C terrestrial ages is 6.2 ka, significantly younger than the Oman population (19.5 ka, n = 128). A further assessment of terrestrial 14C contamination is advised by a 11-15 ka 14C terrestrial age of heavily weathered meteorite Khawr al Fazra 014, geology indicating a terrestrial age >100 ka. Find densities of 0.4-2.8 km-2 for Yabrin and the western Rub' al-Khali are similar to ~0.5 km-2 observed in Oman. Higher find densities of ~135 km-2 (29 km-2 for masses >10 g) exist on small Pleistocene outcrops in blowouts in the south-central Rub' al-Khali: 21 unpaired meteorites (four >10 g) were found in 11 blowouts with a combined area of 0.14 km2. The Rub' al-Khali meteorites show a relatively high degree of weathering (median W 3.6; 2.5 for Yabrin), low median mass (4.3/138 g), and a high H/L ratio (2.3/1.1). The high density of small meteorites is explained by prolonged sand protection and recent deflation. The high meteorite density and relatively high proportion of rare meteorite types render the Rub' al-Khali blowouts an interesting target for future exploration.

Original languageEnglish (US)
JournalMeteoritics and Planetary Science
DOIs
StateAccepted/In press - Jan 1 2018

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Saudi Arabia
reconnaissance
meteorites
meteorite
blowouts
Oman
chondrites
acapulcoite
sands
ureilites
lunar meteorite
enstatite chondrite
eucrite
ordinary chondrite
sand
deflation
enstatite
carbonaceous chondrites
carbonaceous chondrite
outcrops

ASJC Scopus subject areas

  • Geophysics
  • Space and Planetary Science

Cite this

Hofmann, B. A., Gnos, E., Jull, A. J. T., Szidat, S., Majoub, A., Al Wagdani, K., ... Al Solami, A. (Accepted/In press). Meteorite reconnaissance in Saudi Arabia. Meteoritics and Planetary Science. https://doi.org/10.1111/maps.13132

Meteorite reconnaissance in Saudi Arabia. / Hofmann, Beda A.; Gnos, Edwin; Jull, A.J. Timothy; Szidat, Sönke; Majoub, Ayman; Al Wagdani, Khalid; Habibullah, Siddiq N.; Halawani, Mohammed; Hakeem, Mohammed; Al Shanti, Mahmoud; Al Solami, Abdulaziz.

In: Meteoritics and Planetary Science, 01.01.2018.

Research output: Contribution to journalArticle

Hofmann, BA, Gnos, E, Jull, AJT, Szidat, S, Majoub, A, Al Wagdani, K, Habibullah, SN, Halawani, M, Hakeem, M, Al Shanti, M & Al Solami, A 2018, 'Meteorite reconnaissance in Saudi Arabia', Meteoritics and Planetary Science. https://doi.org/10.1111/maps.13132
Hofmann, Beda A. ; Gnos, Edwin ; Jull, A.J. Timothy ; Szidat, Sönke ; Majoub, Ayman ; Al Wagdani, Khalid ; Habibullah, Siddiq N. ; Halawani, Mohammed ; Hakeem, Mohammed ; Al Shanti, Mahmoud ; Al Solami, Abdulaziz. / Meteorite reconnaissance in Saudi Arabia. In: Meteoritics and Planetary Science. 2018.
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AU - Al Wagdani, Khalid

AU - Habibullah, Siddiq N.

AU - Halawani, Mohammed

AU - Hakeem, Mohammed

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