lut 009 meteorite was found during a trip to lut desert of iran in march,2012, at 30°20.38' n, 59°09.04' e. chemical compositions of equilibrated olivine (fa19.3 ± 0.5) and orthopyroxene (fs16.7 ± 0.6) show that the meteorite sample belongs to h group of ordinary chondrites, while the texture (chondrule petrography and plagioclase size) suggests a petrologic type of 4. the lut 009 has...

Oxygen isotope ratios of large cosmic spherules: Carbonaceous and ordinary chondrite parent bodies Conference Item How to cite: Suavet, C.; Alexandre, A.; Franchi, I. A.; Gattacceca, J.; Sonzoghi, C.; Greenwood, R. C.; Folco, L. and Rochette, P. (2009). Oxygen isotope ratios of large cosmic spherules: Carbonaceous and ordinary chondrite parent bodies. In: 40th Lunar and Planetary Science Confer...

Introduction: Micrometeorites (MMs) are large (>25 µm) interplanetary dust particles that survive atmospheric entry to be recovered from the Earth's surface. Amongst those particles that escaped significant heating during atmospheric entry two groups have been identified [1]: (i) fine-grained MMs (fgMMs), which are similar to the fine-grained matrices of hy-drated carbonaceous chondrites (CCs),...

Major element fractionation among chondrites has been discussed for decades as ratios relative to Si or Mg. Expressing ratios relative to Fe leads to a new relationship admitting the possibility that ordinary chondrite meteorites are derived from two components: one is a relatively undifferentiated, primitive component, oxidized like the CI or C1 chondrites; the other is a somewhat differentiat...

Introduction: The Glanerbrug ordinary chondrite fell April 7, 1990 through the roof of a house in the Netherlands [1,2]. The inhomogeneous character of the rock was recognized immediately [1] and Glanerbrug was officially classified as an LL breccia [3]. In later publications Glanerbrug was described as an L/LL5 chondrite (e.g., [4]). Based on the somewhat unclear and inconsistent classificatio...

Abstract For ordinary‐chondrite (OC) mass distributions, Benford’s law applies to the set of individual objects that survive intact on Earth’s surface after atmospheric disruption meteoroids. Among OCs, Antarctic finds conform more closely than observed falls, Northwest Africa (NWA) finds, or Oman mainly because OCs tend be relatively unweathered (and mostly intact) and have not been aggregated...