This ice core record shows close overlap between the time of the Tiwanaku abandonment and the start of an increasingly dry spell.

 
  • 這個(gè)冰巖芯表明提瓦那庫被遺棄的時(shí)間與一個(gè)越來(lái)越干燥的氣候階段的開(kāi)始相吻合。
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