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Ancient Diamonds Show Earth Was Primed For Life s Explosion At Least 2.7 Billion Years Ago Source: GOLDSCHMIDT CONFERENCE One of the 2.7 billion year-old diamonds used in this work Credit: Michael Broadley A unique study of ancient diamonds has shown that the basic chemical composition of the Earth s atmosphere which makes it suitable for life s explosion of diversity was laid down at least 2.7 billion years ago. Volatile gases conserved in diamonds found in ancient rocks were present in similar proportions to those found in today s mantle, which in turn indicates that there has been no fundamental change in the proportions of volatiles in the atmosphere over the last few billion years. This shows that one of the basic conditions necessary to support life, the presence of life-giving elements in sufficient quantity, appeared soon after Earth formed, and has remained fairly constant ever since.

United statesLake superiorCanada generalDr suzette timmerman university of albertaEuropean association of geochemistry europeMichael broadley university of lorraineGeochemical society united statesGoldschmidt geochemistryMichael broadleyGoldschmidt conferenceEuropean associationGeochemical societyஒன்றுபட்டது மாநிலங்களில்ஏரி உயர்ந்ததுகோல்ட்ஸ்மிட் மாநாடுஐரோப்பிய சங்கம்