Oldest life on Earth found in eastern India, dating back 3.497 billion years

Why in news

Discovery of 3.497 billion-year-old microfossils in eastern India's Singhbhum block provides evidence of early microbial life and complex metabolic pathways.

Background

International scientists identified biological traces in the Singhbhum geological block of eastern India. The microfossils were preserved between volcanic ash layers and analyzed using spectroscopic methods to confirm ancient microbial activity near hydrothermal vents.

Facts for Prelims

• PlaceSinghbhum geological block is located in eastern India.
• S&TMicrofossils dating back 3.497 billion years indicate early life forms.
• S&TSpectroscopic methods were used to analyze biological traces in volcanic ash.

For Mains

Q. Discuss the significance of geological and biological discoveries in understanding the evolution of life and Earth's early metabolic pathways.

Dimensions to cover in your answer

• evolutionary biology
• geological preservation
• scientific methodology

Keywords: microfossils · hydrothermal vents · metabolic pathways · spectroscopic analysis

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