ek adhyayan mein paaya gaya hai ki 445 aur 485 miliyan varsh poorv oxygen ke star mein vruddhi se jaiv vividhata mein teen guna vruddhi huee thi.
vividhata ke visphot, great ordivaashiyan jaivavividhikaran kaaryakram ke roop mein maanyata praapt, vibhinn samudree jeevan ke uday ke baare mein, prajaatiyon ke parivaaron aur prakaaron mein jabaradast parivartan, saath hee saath prithvee mein parivartan, mahaasaagar ke pharsh ke neeche se shuroo hua hai.
amerika mein voshingatan vishvavidyaalay ke sahaayak proffesor 'kol edavards' ne kaha, "oxygen ko do drshtikono se samarthan milata hai jo jyaadaatar ek doosare se svatantr hote hain, alag-alag bhaugolik records ka istemaal karate hain aur usee maatra mein oxygenkaran kee bhavishyavaanee kee jaatee hai."
hamane jaiv vividhata aur oxygen ke staron ke beech ek aur kadee banaee hai, lekin is baar orodovishiyan ke dauraan 455 miliyan varsh poorv lagabhag oxygen ke star tak pahunch gae the, "shree edavards ne kaha.
raasaayanik hastaakshar:-
samudree jal se gathit kaarbonet chattaanon mein sanrakshit bhaugolik proksee, uchch-rizolyooshan deta aur raasaayanik hastaakshar ka upayog karate hue, shodhakartaon ne madhy aur svargeey ordovishiyan kaal me oxygen kee vruddhi ko pahachaanane mein saksham banaaye.
unhen okxygen ke star mein kareeb 80% kee vruddhi huee, jahaan dairivillin stej ke dauraan oxygen ka vaataavaran me lagabhag 14% gathit hua aur madhy kaiteeyan dvaara vaataavaran ka 24% tak ooncha kiya gaya.
pramukh daalon :-
is adhyayan se pata chalata hai ki kaimbriyan visphot ke baad laakhon varshon tak vaayumandaleey okseejan ka star nahin pahunch paaya aur aadhunik star ko banae rakha, jise paramparaagat roop se us samay ke roop mein dekha jaata hai jab saagar vaayumandal okseejanayukt tha. "
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