one of the most common types of meteorites that strike the Earth. They're made up of chondrules, or small, spherical grains of silicate minerals such as olivine and pyroxene. Herd believes the ...

(C) Back-scattered electron image of an olivine crystal from the Kīlauea Halema’uma’u eruption that started Dec. 23, 2024. This is an olivine grain that has typical Kīlauea summit eruption ...

one of the most common types of meteorites that strike the Earth. They’re made up of chondrules, or small, spherical grains of silicate minerals such as olivine and pyroxene. Herd believes the ...

However, its original structure remained. The meteorite contains “pre-solar grains”, tiny crystals formed in stars before the Sun and Earth came into existence. These grains, including micro ...

We can use olivine as a “crystal clock” to determine the timing of magmatic events leading up to eruption which was discussed in detail in a previous Volcano Watch here. Two other minerals ...

Meteorite Contains Evidence of Liquid Water on Mars 742 Million Years Ago Nov. 13, 2024 — An asteroid struck Mars 11 million years ago and sent pieces of the red planet hurtling through space.

Raitt, R. W., Shor, G. G., Francis, T. J. G., and Morris, G. B., J. Geophys. Res. (in the press).