Sentence examples for primordial composition from inspiring English sources

Primordial lead is thought to have been formed by stellar nuclear reactions, released to space by supernovae explosions, and incorporated within the dust cloud that constituted the primordial solar system; the troilite (iron sulfide) phase of iron meteorites contains lead that approximates the primordial composition.

The star's near-purity suggests that just a few earlier supernovas--and perhaps only one--polluted its primordial composition.

Primitive extraterrestrial objects provide means to trace back the primordial composition and radial distribution of matter in this disk.

This indicates that their materials have been significantly modified from their primordial composition, probably through melting and reformation.

Chemically, their spectra match the primordial composition of the early Solar System, with only the lighter elements and volatiles removed.

Thus, the evolution of primordial chemical compositions and processes was initially driven by Earth's diurnal cycles that caused repeated colloidal phase separations – the appearances and disappearances of 'first microspaces' [ 26] (Fig.  1).

These objects are usually believed to be very primitive in nature, having preserved a primordial structure and composition.

2. Influence of media composition on primordial follicle survival Ovarian pieces from an Amur leopard were used to analyze the impact of protein source on follicles survival during prolonged culture.

Researchers have long put it down to the composition of the primordial soup in which the first life arose.

The Genesis probe will help reveal the composition of the primordial solar nebula, which gave birth to the sun and planets 4.6 billion years ago.

The atmospheric proportions of hydrogen and helium are close to the theoretical composition of the primordial solar nebula.