Preliminary 40Ar-39Ar analyses of igneous and metamorphic rocks from the Napier Complex

• Main Authors: Yutaka Takigami, Naoto Ishikawa, Minoru Funaki
• Format: Report
• Language: English
• Published: Kanto Gakuen University 1998
• Subjects: ^<40>Ar-^<39>Ar age; Napier Complex; Amundsen dyke; East Antarctica; Riiser-Larsen; Napier; Antarc*; Antarctica; Polar geoscience
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3028; http://id.nii.ac.jp/1291/00003028/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3028&item_no=1&attribute_id=18&file_no=1

Ages of two gneisses and two dolente dykes which were collected for a paleomagnetic study from Mt Riiser-Larsen in the Napier Complex, East Antarctica, were analyzed by the ^<40>Ar-^<39>Ar method All samples contain excess Ar Based on their age spectra, however, ages of about 800-1100 Ma...