hematit

hematit

An iron-oxide mineral (Fe₂O₃) that may be the cause of the red color on Mars. Courser-grained gray hematite has the same chemical formula as the red variety, but a different crystalline structure. The deposits of gray hematite found in the Terra Meridiani region of Mars may suggest that water once circulated through the region's rock layers.

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Галузь/тема: Astronomy
Category: Planetary science
Company: PSRD
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gustoća struje

Astronomy; Planetary science

Water movement due to differences in the density of the water from place to place usually caused by changes in the amount of material held in suspension or changes in temperature ...

srastanje

Astronomy; Planetary science

The growth of planets from smaller objects by impact, one impact at a time. After formation, planets are said to have "accreted" from small objects.

anomalija

Astronomy; Planetary science

A deviation from the common rule, type, or form; something abnormal or inconsistent.

termoelektrična baterija

Astronomy; Planetary science

A sensor for measuring temperature. It consists of two dissimilar metals, joined together at one end, which produce a small voltage proportional to the temperature.

astrobiologija

Astronomy; Planetary science

Study of the origin, distribution, and destiny of life in the universe. These are interdisciplinary studies involving astronomers, astrophysicists, biologists, chemists, ...

tlo

Astronomy; Planetary science

The upper layers of sediment on Earth that support plant growth.

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