The Sonoma Quaternary lab (SQUAL) is fully equipped for microfossil (pollen, testate amoebae, and microscopic charcoal) and macrofossil (plant macrophytes and charcoal) preparation, extraction and analysis. The lab has multiple ovens, a furnace, spectrophotometer and Bartington magnetic susceptibility equipment. The microscopy lab houses two light microscopes, two dissecting scopes, digital imaging capabilities, and a Velmex tree-ring measuring system. Field equipment includes a Livingstone sediment corer, Russian peat corer, soil auger samplers and tree corers.