The 40Ar-39Ar ages of hornblendes in Grt-Pl-bearing amphibolite from the Larsemann Hills, East Antarctica and their geological implications

• Main Authors: Laixi, Tong, Xiaohan, Liu, Liansheng, Zhang, Haihong, Chen, Fukun, Chen, Yanbin, Wang, Liudong, Ren
• Format: Article in Journal/Newspaper
• Language: English
• Published: Polar Research Institute of China - PRIC 1998
• Subjects: East Antarctica; Larsemann Hills; Advances in Polar Science; Antarc*; Antarctica; Polar Science
• Online Access: http://library.arcticportal.org/2156/; http://library.arcticportal.org/2156/1/A802.000.pdf

In this paper we reported the 40Ar-39Ar dating results of hornblendes in Grt-Pl-bearing amphibolite from the Larsemann Hills, East Antarctica. Their apparent ages respectively are 1586 Ma, 1011-1080 Ma, 761 Ma, 529-582 Ma. Their plateau ages of 1036 Ma and 554 Ma as well as an Ar-Ar isochron age of...