ABSTRACT

Detrital zircon ages from sandstones in isolated plant-bearing, probably fluviatile sedimentary successions at Milan Rock and Mount Murphy, Marie Byrd Land, West Antarctica indicate probable mid-Cretaceous (95--105 Ma) depositional ages. Rocks of similar age reported from the Amundsen Sea have indicated warm, humid environments and the new data reported here for plant-bearing rocks would now place such conditions close (>80°S) to the contemporary mid-Cretaceous South Pole

中文翻译：

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覆盖南极洲西部玛丽伯德地早期古生代基底的演替——南极纬度地区白垩纪含植物岩石的证据

摘要

在米兰岩石和墨菲山、玛丽伯德地、南极洲西部，孤立的植物轴承砂岩中的碎屑锆石年龄可能是河流沉积序列，表明可能的中白垩世 (95--105 Ma) 沉积年龄。从阿蒙森海报告的类似年龄的岩石表明环境温暖、潮湿，这里报告的植物岩石的新数据现在将这种条件置于当代白垩纪中期南极附近（>80°S）