Submitted on: 24 November 1999.
Revised on: 15 December 1999.
Accepted on: 01 January 2000.
NEW ZEALAND JOURNAL OF GEOLOGY AND GEOPHYSICS
http://reply.papertrans.cn/3/232/23136/23136-22.png
http://reply.papertrans.cn/3/232/23136/23136-23.png
Submitted on: 08 October 2008.
Revised on: 19 October 2008.
Accepted on: 27 October 2008.
NEW ZEALAND JOURNAL OF GEOLOGY AND GEOPHYSICS
http://reply.papertrans.cn/3/232/23136/23136-25.png
http://reply.papertrans.cn/3/232/23136/23136-26.png
http://reply.papertrans.cn/3/232/23136/23136-27.png
http://reply.papertrans.cn/3/232/23136/23136-28.png
http://reply.papertrans.cn/3/232/23136/23136-29.png
Submitted on: 01 February 2013.
Revised on: 25 February 2013.
Accepted on: 02 March 2013.
NEW ZEALAND JOURNAL OF GEOLOGY AND GEOPHYSICS