Archaean era的用法和樣例：
例句
- He says by examining oxidation rates they have shown the mantle has cooled several hundred degrees since the Archaean.
丹尤柴夫斯基說，通過檢測氧化的速度，他們證明了自從太古代以來，地幔冷卻了好幾百度。 - The mother rock derived form Archaean and Early Proterozoic metamorphic rock from the north-east part of Ordos Basin.
該區延長組母岩主要來自盆地東北緣的太古代及早元古代變質岩。
