Sentences with phrase «using iron meteorites»

Plotted are the period and phase (of expected peak coldness) of two extraterrestrial signals (astronomical determinations of the spiral arm pattern speed and cosmic ray flux reconstruction using Iron meteorites) and two paleoclimate reconstruction (based on sedimentation and geochemical records).

Not exact matches

Scientists have identified each crater by using several different kinds of clues, such as pieces of iron - rich meteorite or satellite imaging.

Geologist Matthew Pasek of the University of Arizona in Tucson, who previously studied the possibility that early life used phosphorus from iron meteorites, knew that cloud - to - ground lightning was one of the few natural phenomena that could produce enough energy to create phosphite.

Using innovative isotopic analysis techniques and mathematical modeling, he has shown that Mars is a planetary embryo, found isotopic similarities between the Moon, Earth and meteorites, and proposed a new narrative for the origin of Earth's unique iron composition.

Bronze Age artifacts revealed nickel levels and ratio of iron to cobalt that suggest these were made using metals from meteorites.

Figure 3 - An Iron meteorite, a large sample of which can be used to reconstruct the past cosmic ray flux variations.