Related by context. Frequent words. (Click for all words.) 60 isotopic composition 58 isotope ratios 56 isotopic 56 perovskite 55 oxygen isotopes 55 zircons 55 elemental composition 55 cuprates 54 osmium 54 copper oxides 54 magmatic 54 zeolites 53 silicates 53 abiotic 53 absorbance 53 spinel 53 solar nebula 53 hydrothermal activity 52 Fig. 1A 52 fluorescing 52 biogenic 52 iron oxides 51 marine sediments 51 colloid 51 nanosized 51 chemical composition 51 cerium 51 Brownian motion 50 adsorbed 50 photoluminescence 50 naturally occurring 50 electron density 50 Germanium 50 porphyrin 50 radioactive decay 50 lavas 50 kerogen 50 spectroscopic 50 silicate 49 morphologies 49 rubidium 49 dimers 49 MgO 49 abundances 49 anions 49 zeolite 49 high temperature superconductivity 49 ionisation 49 protoplanetary disk 49 crystalline structure 49 phonon 49 dopants 49 X ray emission 49 magmas 49 igneous rocks 49 spectral signatures 49 apatite 48 fossilization 48 olivine 48 dopant 48 chirality 48 anisotropy 48 chemically inert 48 ionic liquid 48 naturally occuring 48 anisotropic 48 titanium oxide 48 aqueous solution 48 depositional 48 ruthenium 48 spectral signature 47 GPa 47 iridium 47 tellurium 47 nickel alloy 47 Precambrian 47 crystallization 47 basaltic 47 igneous rock 47 Bose Einstein condensate 47 biogeochemical 47 quark gluon plasma 47 tropospheric 47 Fluorine 47 colorimetric 47 stromatolites 47 spectrometry 46 mineralizing 46 conductance 46 nanostructure 46 galaxy formation 46 deuterium 46 proline 46 dispersive 46 volcanism 46 orbitals 46 polar vortex 46 hydroxyapatite 46 biomolecule 46 spherules 46 keV