Relacionar Columnas Evidence of past ecosystemsVersión en línea Complete this matching activity on evidence of past ecosystems. por Belinda Schirmer 1 Principals of stratigraphy, volcanic ash deposits, banded iron formations and Palaeosoils ('fossilised soils'). 2 Gas and particles (e.g., dust, pollen, volcanic ash and radioactive particles) get trapped in snow as it falls year after year, building up layers. 3 Determining levels of atmospheric carbon dioxide, oxygen and other gases to estimate atmospheric temperature. 4 Evidence of past life from mineralised remains, organic remains, impressions, trace fossils, microfossils, Stromatolites and molecular biomarkers. 5 Absolute age of fossil, rock or mineral determined using predictable decay rates of isotopes. Carbon-14 for fossils. Fisson-tracking and luminescence. 6 Longest unbroken art tradition in the world (40000 years). Recorded evidence of climate and organisms including types and abundance in their art. Geological Palaeontological Gas analysis Radiometric dating Ice cores Rock Art
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