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(Click for frequent words.) 77 isotope ratios 73 isotopic compositions 72 isotopic ratios 71 isotopic 70 oxygen isotope ratios 69 carbon isotopes 69 oxygen isotope 68 oxygen isotopes 67 isotope fractionation 67 CAIs 67 basaltic rocks 66 elemental composition 66 isotope composition 66 sulfur isotopes 66 abundances 65 chondrites 65 martian meteorites 64 olivine 64 chemical composition 64 magnetite crystals 63 primitive meteorites 63 isotope ratio 63 strontium isotope 63 isotopic signatures 63 plagioclase 63 zircons 63 sedimentary deposits 63 chondritic 63 sulfur isotope 63 leachability 62 carbonate globules 62 lavas 62 carbonaceous chondrites 62 U Th 62 isotopic signature 61 IR spectra 61 pyroxene 61 nebular 61 paleomagnetic 61 solar nebula 61 noble gases 61 carbon isotope ratios 61 silicate rocks 61 olivine crystals 61 chondritic meteorites 61 microfossils 61 olivines 61 fluid inclusions 61 uranium thorium 61 chondrules 61 spectroscopic analysis 61 atmospheric aerosols 61 mineralogy 61 intrinsic brightness 60 stony meteorites 60 mineralogical composition 60 radioactive decay 60 marine sediments 60 isotopic fractionation 60 eclogitic 60 Mg Ca 60 Ohmoto 60 spectral fingerprints 60 benthic foraminifera 60 δ 60 aragonite 60 jarosite 60 nitrogen isotopes 60 goethite 59 osmium 59 cosmogenic 59 silicate 59 oxygen isotopic composition 59 concretions 59 isotopic measurements 59 nitrogen isotope 59 metallicity 59 apatite 59 lunar meteorites 59 samarium 59 crystallites 59 element osmium 59 isotopic variations 59 Martian meteorites 59 Fe Mn 59 silicate dust 59 neutrino mass 59 planktonic foraminifera 59 Mercury exosphere 59 olivine rich 58 potassium thorium 58 magnetic susceptibility 58 hydrogen isotopes 58 absorption spectra 58 volcanic basalt 58 igneous rocks 58 cosmic ray flux 58 magma ocean 58 melt inclusions 58 lake sediments 58 post perovskite 58 weakly interacting 58 Sr Ca 58 electrical conductance 58 petrography 58 phyllosilicates 58 depositional environment 58 meteoritic material 58 cometary material 58 radiocarbon dates 58 comet nuclei 58 magnesium Mg 58 lunar magma 58 spinels 58 isotherms 58 peridotitic 58 silicic 58 elemental abundances 58 spatially resolved 58 carbonate minerals 58 silicate minerals 58 Neoproterozoic 58 mantle convection 57 carbonaceous 57 neodymium Nd 57 silicate mineral 57 spatial variability 57 silicate mantle 57 calcium fluoride 57 morphologies 57 sedimentary layers 57 ilmenites 57 magnesium carbonates 57 aerosol particles 57 mantle xenoliths 57 lunar crust 57 biogenic 57 diffusivity 57 seafloor sediments 57 basalts 57 seabed sediments 57 Raman spectra 57 Neogene 57 atmospheric methane 57 stoichiometry 57 micrometre sized 57 stable isotope 57 phyllosilicate 57 thermodynamic properties 57 basaltic 57 spectral signatures 57 unoxidized 57 anisotropy 57 anorthosite 57 hydroxyl molecules 57 sulfidic 57 clay mineralogy 57 vanadium oxide 57 pyrope 57 refractive indices 57 magmas 57 sediments deposited 57 spectroscopically 57 basalt volcanic 57 forams 57 geoneutrinos 57 BIFs 57 iron oxides 57 oxygen isotopic 57 methanogenesis 57 carbonaceous chondrite 56 homochirality 56 subglacial 56 Mg Fe 56 hydrologic cycle 56 shear modulus 56 evaporite 56 iron arsenide 56 paleoclimatic 56 sulfate salts 56 Geochemical analysis 56 diatom 56 dynamical evolution 56 sedimentological 56 metal zonation 56 hydrothermal activity 56 calcium Ca 56 mineral apatite 56 asthenosphere 56 spectroscopic measurements 56 perovskite 56 paleoenvironmental 56 meteorite fragments 56 FeO 56 deuterium 56 komatiite 56 geochronology 56 silicates 56 presolar grains 56 isotopic analysis 56 tholins 56 mantle plumes 56 ferric oxides 56 hydrated silica 56 Late Ordovician 56 dielectric permittivity 56 spinel 56 ALH# 56 helium isotopes 56 volcanism 56 spectroscopic 56 tungstate 56 sorption 56 pyrope garnet 56 Zr 56 magnetic anisotropy 56 diatoms 56 adsorption isotherms 56 antineutrinos 55 presolar 55 isotopic fingerprint 55 hydrous 55 Mössbauer 55 supersolid 55 magmatic 55 heterogeneities 55 dipole moment 55 interannual variability 55 Mercury magnetosphere 55 LREE 55 Spectroscopic 55 Dauphas 55 potassium sodium 55 thermal decomposition 55 radiocarbon dated 55 lunar highlands 55 antineutrino 55 total solar irradiance 55 foraminifera 55 Prochlorococcus 55 single celled algae 55 spherules 55 volcanic aerosols 55 biominerals 55 lithosphere 55 cosmic ray intensity 55 Compact Reconnaissance Imaging Spectrometer 55 Murchison meteorite 55 circular dichroism 55 sulphidic 55 metabolite concentrations 55 inorganic salts 55 coccolithophores 55 komatiites 55 electron density 55 blackbody 55 morphological evolution 55 Fig. 4A 55 biotite rich 55 lunar soil 55 Fe Mg 55 speleothems 55 Hadean 55 radiocarbon 55 calcite 55 elastic modulus 55 carbonaceous material 55 geochemists 55 calcic 55 electrical resistivity 55 strange quark 55 electron diffraction 55 filamentary structure 55 rheological properties 55 ejecta 55 mineral olivine 55 pentacene molecule 55 CaO 55 ostracods 55 electron neutrinos 55 methane ethane 55 radiometric dating 55 halite 54 infrared spectra 54 isotherm 54 clathrates 54 morphology 54 SNe Ia 54 claystone 54 pyrites 54 petrographic 54 atmospheric deposition 54 quasicrystal 54 atmospheric CO 54 gravitational redshift 54 marine phytoplankton 54 fermion 54 antimony Sb 54 Wassonite 54 illite 54 platinum Pt 54 carbonyl sulfide 54 exoplanetary systems 54 globulars 54 protoplanetary disks 54 igneous rock 54 albedo 54 KT boundary 54 sodium salts 54 terrestrial biosphere 54 acid soluble 54 photosynthetic pigments 54 ARPES 54 biogeochemistry 54 SN Ia 54 siliciclastic 54 interglacial periods 54 paleoecology 54 chrome diopside 54 cryovolcanism 54 extrasolar 54 hematite mineral 54 photochemical reactions 54 asteroidal 54 stromatolite 54 solar irradiance 54 Meridiani 54 lithium bearing brines 54 humic 54 methanogens 54 biosignatures 54 pyrope garnets 54 granite gneiss 54 sediments 54 periodicities 54 depositional 54 X ray emission 54 lowermost mantle 54 Tellurium 54 spectral signature 54 silicon dioxide SiO2 54 tungsten isotopes 54 hydrated minerals 54 mineralized mafic 54 oligotrophic 54 volcaniclastic kimberlite 54 Calcium carbonate 54 limestone xenoliths 54 fluorimetry 54 turbidites 54 quartz adularia 54 peridotites 54 sulfide minerals 54 GJ #b [002] 54 graphite whiskers 54 dissolved inorganic 54 deglaciation 54 meridional flow 54 ellipsoids 54 3He 54 crustal rocks 54 meteoritic 54 rhenium Re 54 sulfate aerosol 54 sulphide mineral 54 gamma rays emitted 54 otoliths 54 uraninite 54 calcareous 54 temporal variability 54 endothermic 54 cometary dust 54 Young modulus 54 protoplanetary disk 54 siderite 54 SiO 54 earthshine 54 equilibration 54 Milankovitch cycles 54 Chlamydomonas reinhardtii 54 acid leached 54 continental crust 54 Ontario Lacus 54 Noachian 54 metamorphic rock 54 chemically reactive 54 Bose Einstein condensation 54 ostracodes 54 missing baryons 53 electron affinities 53 particle sizes 53 COROT 7b 53 crustal thickness 53 terrestrial ecosystems 53 nitrogen fixation 53 masers 53 X ray binaries 53 aerosol concentrations 53 anhydrite 53 permanently shadowed craters 53 Maunder minimum 53 type Ia supernova 53 tetrapods evolved 53 Fig. 1A 53 physicochemical properties 53 epidote 53 relative abundances 53 Corot 9b 53 wettability 53 dissolved salts 53 bioavailable iron 53 g/cm3 53 Hipparcos 53 biogeochemical processes 53 stromatolites 53 sulfide deposits 53 regolith 53 adsorbate 53 stalagmite 53 calcite crystals 53 dickite 53 Doushantuo Formation 53 partially oxidized 53 trimers 53 Jupiter moon Io 53 biogeochemical 53 aluminate 53 porosity permeability 53 dihydrogen 53 MgO 53 collisional 53 ULIRGs 53 β carotene 53 geochemically 53 carbon spherules 53 Henize #-# 53 sediment cores 53 exosphere 53 humic acids 53 elliptical galaxies 53 phenanthrene 53 microprobe analysis 53 hydroxides 53 palaeo 53 greisen 53 NH4 + 53 coarser grained 53 Palaeozoic sedimentary 53 sterile neutrino 53 silicate grains 53 REE bearing 53 geomorphic 53 biomineralization 53 pathfinder element 53 specular reflection 53 temperature gradient 53 magnesium silicate 53 spectra 53 palladium Pd 53 Kuiper belt objects 53 evaporite deposits 53 kaons 53 pH acidity 53 inorganic ions 53 GOFs 53 NanoSIMS 53 sunlike stars 53 baryonic 53 poly L lysine 53 scheelite 53 KIMs 53 biosignature 53 quasicrystals 53 astrophysical objects 53 hydraulic conductivity 53 magnetisation 53 quark gluon plasma 53 platinum nanorods 53 sylvite 53 radiogenic 53 diffusion coefficients 53 sodium potassium 53 Phanerozoic 53 inorganic mercury 53 X ray spectrometer 53 solvation 53 Last Glacial Maximum 53 anomalously 53 desorption 53 HiRISE image 53 organic molecules 53 vibrational modes 53 prebiotic molecules 53 climate forcings 53 physico chemical 53 tau neutrinos 53 Bulk density 53 finely disseminated 53 helium nuclei 53 ZnO nanowires 53 iron sulphides 53 fluorescence quenching 53 interstellar dust grains 53 olivine macrocrysts 53 magmatism 53 crystalline solids 53 iron pnictides 53 stibnite 53 zircon crystals 53 lanthanum strontium 53 photoelectron 53 Proteobacteria 53 ocean sediment cores 53 GJ#b 52 hydrothermal fluid 52 CaCO 3 52 magnetic polarity 52 inhomogeneities 52 AB Aurigae 52 polar caps 52 spontaneous fission 52 torsional oscillator 52 icy moons 52 variograms 52 AGNs 52 optical spectra 52 calcium phosphorous 52 chlorinated organics 52 Late Devonian 52 crystalline structure 52 eclogite 52 Chicxulub impact 52 Rhenium 52 fermionic 52 Chalcopyrite 52 crustal 52 microscopic specks 52 neutrino oscillations 52 forcings 52 galaxy redshift 52 submicrometer 52 nanoclusters 52 sulfate 52 GPa 52 cm -3 52 planetesimal 52 W boson 52 lunar regolith 52 heavily cratered 52 hydrodynamic radius 52 GtC 52 xenoliths 52 Anisotropy 52 subsurface ocean 52 electrical conductivity 52 carbonaceous mudstone 52 sulphates 52 Monazite 52 spectral measurements 52 glaciations 52 ferruginous 52 magnetic substorms 52 fluxes 52 protoplanet 52 yttrium Y 52 chondrite 52 chalcopyrite bornite 52 conductivity 52 spicule 52 mineral zonation 52 particle morphology 52 recrystallized 52 P/# A2 52 petrographic analysis 52 green alga Chlamydomonas 52 polar mesospheric clouds 52 otolith 52 quantum oscillations 52 seafloor sediment 52 radioactive nuclei 52 manganese oxides 52 zeolites 52 spectrographs 52 monazite 52 tuffaceous rocks 52 protonated 52 catalytically active 52 proton decay 52 geochemical signature 52 subsurface soils 52 Allende meteorite 52 mtDNA sequence 52 Cepheids 52 Archaean 52 arsenopyrite bearing 52 Nernst 52 silicon monoxide 52 overlying layers 52 atmospheric circulation 52 explosive volcanism 52 Radiometric dating 52 KamLAND 52 pnictides 52 crystallinity 52 microstructural 52 X ray scattering 52 CO2 CH4 52 filamentary 52 reionization 52 crystalline silicates 52 acidity pH 52 isotope geochemistry 52 volumetrically 52 Cryogenian 52 phlogopite 52 sulfate minerals 52 Kounaves 52 hydrothermally 52 corundum 52 pyrochlore 52 downwelling 52 facies 52 cratons 52 coral skeletons 52 mesospheric 52 surface temperatures SSTs 52 shadowed craters 52 Anomalous radioactivity 52 niobium Nb 52 Late Paleozoic 52 cuprate superconductors 52 neutralinos 52 Syrtis Major 52 brachiopods 52 hemoglobins 52 detrital 52 CaCO3 52 ENSO cycle 52 ultramafic intrusives 52 Type Ia 52 quartz grains 52 hydroxyl 52 chemisorption 52 airglow 52 WASP #b 52 heavy fermion 52 neutral mass spectrometer 52 antiferromagnets 52 boron nitride 52 fossilized coral 52 redshifts 52 ellipsoidal 52 dwelling organisms 52 baryons 52 fossilized pollen 52 potassium feldspar 52 noctilucent clouds 52 dynamical 52 Eemian 52 matter antimatter asymmetry 52 Diatoms 52 thermal diffusivity 52 mid latitudes 52 SNR #-#.# 52 APXS 52 ramidus 52 magnetization 52 t/m3 52 bismuth Bi 52 lithium boron 52 electron pairing 52 tropospheric 52 absorption coefficient 52 hydrophobicity 52 weak gravitational lensing 52 copper sulfide 51 phytoplankton biomass 51 axial tilt 51 tectonically 51 Permian Triassic 51 Paleocene Eocene 51 Geochemistry 51 Upsilon Andromedae 51 dimethyl sulfide 51 Wilkinson Microwave Probe 51 strange quarks 51 anthracene 51 Kepler #b 51 friability 51 chlorine monoxide 51 hornblende 51 irradiance 51 deuterated 51 Sedimentary rocks 51 interstellar clouds 51 iron sulfate 51 photochemistry 51 elastic moduli 51 amorphous silica 51 pillow lavas 51 hematite goethite 51 bacterial decomposition 51 alpha particles 51 cobalt atoms 51 anomalous concentrations 51 alkane 51 mammalian fatty acid 51 igneous 51 chrome diopsides 51 chrysocolla 51 γ 51 eclipsing binary 51 planetary magnetospheres 51 radiative transfer 51 heterotrophic 51 superposed 51 Mott insulator 51 thorium uranium 51 greenschist facies 51 Antarctic Dry Valleys 51 isotopic anomalies 51 germanium antimony 51 mineral assemblages 51 pediment gravels 51 MoS2 51 nucleosynthesis 51 ionic conductivity 51 SiO2 51 nitrogen fixers 51 type Ia supernovae 51 photosynthetic bacteria 51 medium grained 51 microscopic fossils 51 water vapor 51 redshift 51 YORP effect 51 spectrographic 51 planetary nebulae 51 dolomites 51 #ppb [002] 51 stellar occultations 51 thermodynamically 51 Atlantic Multidecadal Oscillation AMO 51 finely disseminated pyrite 51 carbonate 51 Hubble observations 51 paleochannel 51 naturally occurring mineral 51 orbital resonance 51 glacial interglacial 51 fine grained sediment 51 microprobe 51 nucleobases 51 soluble solids 51 pyrite marcasite 51 allanite 51 Fig. 1b 51 colluvial 51 copper oxides 51 arsenate 51 particle acceleration 51 ppbv 51 equilibrated 51 hydroxyl radical 51 ytterbium 51 clastic sediments 51 CDOM 51 polar vortex 51 nanogels 51 Paleoclimate 51 conductance 51 neutrino oscillation 51 diffraction pattern 51 distant quasars 51 hydrogen deuterium 51 vanadium dioxide 51 J# +# [002] 51 abiotic 51 palaeoclimate 51 Snowball Earth 51 layered outcrops 51 cuprates 51 photon energies 51 planetesimals 51 manganese oxide 51 Petrology 51 hydrothermal 51 nucleation 51 quark gluon 51 inorganic compounds 51 phosphorescence 51 loess 51 ferrous oxide 51 sericitization 51 Cosmic Microwave Background 51 phosphorite 51 macrodiamonds 51 insolubles 51 infall 51 active volcanism 51 Mpc 51 zonation 51 Surface Composition Spectrometer 51 radiative 51 cuprate 51 methane CH4 51 Carbonaceous 51 enargite 51 komatiitic 51 surface geochemistry 51 spheroidal 51 chromites 51 exhalite 51 ab initio calculations 51 iridium layer 51 microfossil 51 polymorphs 51 lacustrine 51 mineral hematite 51 clay loam 51 fluorescence spectroscopy 51 B meson 51 KBOs 51 radiocarbon dating 51 planet Gliese #c 51 hydrogen isotope 51 zinc sulfide 51 enthalpy 51 mineralize 51 luminosities 51 rubidium 51 potassium phosphorus 51 antiquarks 51 serum lipid 51 Mojzsis 51 alteration mineralogy 51 morphological similarities 51 neutrino experiments 51 silica 51 geologic 51 Soil pH 51 conodonts 51 diffraction patterns 51 alkali metal 51 chimp genomes 51 thermal gradients 51 tonalite 51 Navajo Sandstone 51 chirality 51 Methane hydrate 51 Rayleigh scattering 51 Zeolites 51 calcination 51 formate 51 Yb 51 C# fullerenes 51 faint galaxies 51 chlorophyll fluorescence 51 schistose 51 mmol 51 Mossbauer 51 isotope dilution 51 bastnasite 51 metastable 51 Cenozoic 51 tetrahedral 51 ferric iron 51 microplastics 51 Radiocarbon 51 NASA Wilkinson Microwave 51 manganese dioxide 51 SN#A 51 superheavy elements 51 mineralogical analysis 51 brightnesses 51 colloidal crystals 51 evaporites 51 anions 51 interstellar dust clouds 51 hydrosphere 51 radiative forcing 50 Milky Way halo 50 Type Ia supernovas 50 sand silt 50 cementite 50 atmospheric oceanic 50 zero valent 50 nuclides 50 mineralogically 50 chromium nickel 50 magnon 50 SN #A 50 neutron activation 50 kelvin 50 Permian extinction 50 surficial 50 unweathered 50 element boron 50 nuclei 50 selenide 50 stellar seismology 50 mineralogical characteristics 50 IRC +# 50 velocity dispersion 50 kimberlite breccia 50 quantum criticality 50 fine grained sandstone 50 C4 grasses 50 lakebed sediments 50 ferromagnetism 50 arsenic antimony mercury 50 earths 50 sodium chloride NaCl 50 ultracold atoms 50 X ray spectra 50 paleoclimate 50 -# degrees Fahrenheit [002] 50 geochemistry 50 physico chemical properties 50 topological insulator 50 abiogenic 50 particle size 50 photoionization 50 yttrium oxide 50 Cepheid variables 50 reanalysed 50 reaction kinetics 50 carbonate veins 50 Coma Cluster 50 spectral characteristics 50 biogeochemical cycles 50 faunal 50 calcined 50 aqueous environments 50 amphibole 50 radial velocity method 50 Cassini ion 50 oxidized iron 50 iron titanium oxide 50 MWNT 50 mesoporous 50 Hubble Constant 50 circumstellar 50 search ellipsoid 50 folate calcium 50 oxygen atom 50 nonequilibrium 50 self assembled monolayers 50 σ 50 photometry 50 infrared spectroscopy 50 fig. S1 50 microcavities 50 sulfate aerosols 50 fluorapatite 50 cerium 50 octahedral 50 high redshift galaxies 50 Fig. 2a 50 magnetic resonance NMR spectroscopy 50 stony meteorite 50 sedex 50 kcal mol 50 specular hematite 50 orpiment 50 nitrate nitrite 50 fossilization 50 dunite 50 hydrothermal magnetite 50 ceria 50 chemical abundances 50 microbially 50 nucleate 50 Lyman alpha 50 intracellular pH 50 teleconnections 50 alteration halos 50 formamide 50 phylogeographic 50 geomorphological 50 ignimbrites 50 CoRoT 7b 50 orbital eccentricity 50 silicate crystals 50 geochemical assays 50 millimeter wavelengths 50 spherical particles 50 lateritic 50 anomalous radon 50 rhyolite tuffs 50 jovian 50 geomorphology 50 lithology 50 photosphere 50 degassed 50 clasts 50 subsurface geology 50 sparticles 50 soils