V2EX oligocene

Oligocene

释义 Definition

Oligocene(渐新世):地质年代中古近纪的一个“世”(epoch),约从3390万年前到2300万年前。常用于描述这一时期的气候变化、生物演化与地层。

发音 Pronunciation

/lsin/, /losin/

例句 Examples

The Oligocene lasted from about 34 to 23 million years ago.
渐新世大约持续于3400万年前到2300万年前之间。

During the Oligocene, global cooling reshaped ecosystems, and many mammals evolved traits suited to more open, drier habitats.
在渐新世期间,全球变冷重塑了生态系统,许多哺乳动物演化出适应更开阔、更干燥栖息地的特征。

词源 Etymology

Oligocene源自希腊语:oligo-(“少的、稀少的”)+ -cene(来自 kainos,“新的”)。这一命名传统用于地质年代分期;“渐新世”最初意在强调相对上一时期而言,地层中“现代型物种比例较少”。该术语在19世纪由地质学家查尔斯莱尔(Charles Lyell)等人推动使用并普及。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Charles Lyell,《Principles of Geology(地质学原理)》:在地质年代分期讨论中涉及并推广相关术语体系(含渐新世等分期概念)。
  • Bill Bryson,《A Short History of Nearly Everything(万物简史)》:在地球历史与地质年代章节中提到包括渐新世在内的多段时期。
  • Elizabeth Kolbert,《The Sixth Extinction(第六次大灭绝)》:在讨论气候与生物演化背景时会引用地质年代(包含渐新世等)。
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