40Ar-39Ar age analyses of some intruded rocks from Mt. Riiser-Larsen in the Napier Complex

Autor: Yutaka, Takigami, Naoto, Ishikawa, Minoru, Funaki
Přispěvatelé: Kanto Gakuen University/School of Earth Sciences, HIS, Kyoto University/National Institute of Polar Research
Jazyk: angličtina
Rok vydání: 2002
Předmět:
Zdroj: Polar geoscience. 15:37-45
Popis: Three ^Ar-^Ar geochronological studies are performed for intruded rocks from Mt Riiser-Larsen in the Napier Complex, East Antarctica All samples have excess Ar and no ^Ar-^Ar plateau ages are obtained from these results Considering two previous age results, however, two metamorphic events at about 700-750 Ma and 1000-1100 Ma might have been suggested
Databáze: OpenAIRE