Laser argon-40-argon-39 age studies of Dar al Gani 262 lunar meteorite

Lunar Argon Cycle Modeling

Introduction: The idea of stable deposits of volatiles in cold permanently shaded regions (PSRs), first advanced by [1], has been revived since observations by Lunar Prospector suggested large amounts of hydrogen in the polar caps. Previous studies have mainly focused on hydrogen (and water) [2] but other important volatiles such as argon could also be trapped. Temperatures in the coldest regio...

Crystallization Experiments of Dar Al Gani Martian Meteoites: a Preliminary

Introduction: Recently, a lot of basaltic shergottites have been found from the desert areas in northern Africa and Middle East Asia. Most of them contain large olivine grains that are not present in the previously known basaltic shergottites (except for EETA79001). These olivine grains are mostly Mg-rich, but they show different mineralogical features in each meteorite. Dar al Gani 476 and its...

Argon laser iridotomy.

Argon laser iridotomy was successfully performed on 47 out of 52 eyes of 35 patients by the continuous wave argon laser. The technique of argon laser iridotomy is described in detail. A number of complications were observed. The reasons for these are discussed, and measures for the avoidance of complications are suggested.

Dar Al Gani 896: a Unique Picritic Achondrite

Binocular indirect argon laser photocoagulator.

The binocular indirect argon laser photocoagulator was newly designed to enable visualisation of the entire fundus during panretinal laser photocoagulation and to treat retinal tears immediately after buckling procedures of the sclera. The lamp housing of the binocular ophthalmoscope was remodelled and adjusted so that the laser beam and illuminating light are coaxial after leaving the ophthalm...