huronian 中文意思是什麼
huronian
解釋
休倫統-
This hematite is gray, however, because the grain size is larger. ) the layering of these distinct rock types indicates that the huronian glaciations occurred precisely when atmospheric oxygen levels first rose
這些層次分明的巖種，暗示著休倫冰期恰好發生於大氣中的氧氣濃度初升之際。 -
Like the better - studied late proterozoic glaciations, the huronian event appears to have been global, based on interpretations that some of the continents were near the equator at the time ice covered them
休倫冰期的相關研究不如其後兩次原生代冰期詳盡，但從當時位於赤道附近的部份陸地也受冰層覆蓋的情況看來，它似乎也是一場全球性事件。 -
The first of these glacial periods is often called the huronian glaciation because it is well exposed in rocks just north of lake huron in southern canada
第一次冰期稱為休倫冰期，因其遺跡在加拿大南部休倫湖北方的巖石中清晰可見。
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