Related by context. Frequent words. (Click for all words.) 51 lake sediments 50 sediment samples 49 sediment cores 46 radiocarbon 45 isotopic 43 radiocarbon dating 42 specimens 41 geochemical 40 mineralogy 40 measurements 39 samples 39 genetic sequences 39 mtDNA 38 fragments 38 geochemistry 37 radiometric 37 gene sequences 37 serum samples 37 genetic fingerprinting 37 specimen 36 mineralogical 36 particle sizes 36 gene expression profiles 36 genetic sequencing 36 Specimens 36 excavated 35 genome sequences 35 serological 35 fecal samples 35 Genomes Project 35 sample pulps 35 experiments 35 SGS Lakefield Research 35 skull fragments 35 Geological mapping 35 Measurements 35 geochemical surveys 34 Mitochondrial DNA 34 Geochemical 34 DNA samples 34 censuses 34 biological specimens 34 DNA microarrays 34 mineralized intercepts 34 genetic markers 34 gas chromatography 34 mitochondrial DNA 34 analyzed 33 human genome sequence 33 archaeological excavations 33 DNA sequences 33 gel electrophoresis 33 Neanderthal DNA 33 archaeological finds 33 ppb Au 33 genetic fingerprint 32 sieved 32 paleoanthropologist 32 x ray crystallography 32 tissue samples 32 collected 31 coronavirus 31 collated 31 metallurgical testwork 31 microarray analysis 31 genome sequence 31 reanalyzed 31 excavations 31 genomes 31 trench sampling 31 borings 31 Grab samples 31 metallurgical testing 31 palaeontology 31 geneticists 30 gene sequencing 30 Neanderthal genome 30 SGS Lakefield 30 soil sampling 30 sampled 30 sample 30 SGS Laboratories 30 Tissue samples 30 analytes 30 throat swabs 30 urine samples 29 geochemical soil 29 Y chromosomes 29 genomic DNA 29 genetically identical 29 Prehistory 29 saliva sample 29 DNA fingerprinting 29 Anthropological 28 HapMap 28 HMS Beagle 28 biobank 28 prehistory 28 laboratory 28 residues 28 microfilmed