| http://www.w3.org/ns/prov#value | - In this...Excess argon in K???Ar and Ar???Ar geochronology30 August 2002Simon KelleyThe K???Ar and Ar???Ar dating techniques occasionally produce anomalously old ages attributed to excess argon, and such data is often rejected as not offering any insight into the age, thermal history or...Review of occurrences and carbon isotope geochemistry of oxalate minerals: implications for the origin and fat
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