A Nonmarine Late Cretaceous Depositional Unit on King George Island, West Antarctica
A new lithostrat(graphic unit) Half Three Point Formation is determined on an inlet (62°13' 40'S, 58°59'01 W) near Half Three Point of Fildes Peninsula of King George Island, South Shetland Islands. This formation consists of volcanic breccia, sediment - tuff, tuffaceous siltstones an...
| Main Author: | |
|---|---|
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Polar Research Institute of China - PRIC
1992
|
| Subjects: | |
| Online Access: | http://library.arcticportal.org/2041/ http://library.arcticportal.org/2041/1/A199201002.pdf |
| Summary: | A new lithostrat(graphic unit) Half Three Point Formation is determined on an inlet (62°13' 40'S, 58°59'01 W) near Half Three Point of Fildes Peninsula of King George Island, South Shetland Islands. This formation consists of volcanic breccia, sediment - tuff, tuffaceous siltstones and mudstones about 5.5 thick. The Palynomorph assemblage is a Late Cretaceous age (Campanian - Maastrichtian). Isotopic age of the tuffites by Rb - Sr whole rock method is 71.30(plus, minus)0.3 Ma. |
|---|