Related Experiment Video
Updated: May 17, 2026

Scattering And Absorption of Light in Planetary Regoliths
Published on: July 1, 2019
Tissint martian meteorite: a fresh look at the interior, surface, and atmosphere of Mars
H Chennaoui Aoudjehane1, G Avice, J-A Barrat
1Hassan II University Casablanca, Faculty of Sciences, Géosciences Appliquées à l'Ingénierie et l'Aménagement (GAIA) Laboratory, BP 5366 Maârif, Casablanca, Morocco. chennaoui_h@yahoo.fr
Abstract:
Tissint (Morocco) is the fifth martian meteorite collected after it was witnessed falling to Earth. Our integrated mineralogical, petrological, and geochemical study shows that it is a depleted picritic shergottite similar to EETA79001A. Highly magnesian olivine and abundant glass containing martian atmosphere are present in Tissint. Refractory trace element, sulfur, and fluorine data for the matrix and glass veins in the meteorite indicate the presence of a martian surface component. Thus, the influence of in situ martian weathering can be unambiguously distinguished from terrestrial contamination in this meteorite. Martian weathering features in Tissint are compatible with the results of spacecraft observations of Mars. Tissint has a cosmic-ray exposure age of 0.7 ± 0.3 million years, consistent with those of many other shergottites, notably EETA79001, suggesting that they were ejected from Mars during the same event.
Related Concept Videos
Torque Free Motion
Impact: Problem Solving
By designating the launch point as the origin and utilizing kinematic equations, the vertical component of the projectile's velocity at the point of impact is...
Rocket Propulsion in Empty Space - I
Rocket Propulsion In Empty Space - II
Conditions on Early Earth
Conditions on Early Earth
