NASA NTRS · 19700059853
Extractable organic matter in Precambrian cherts
Abstract
Precambrian cherts hydrocarbon and fatty acid concentrations and C and S stable isotope ratios, discussing biological evolution rate
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Kaplan, I. R., Schopf, J. W., Smith, J. W.. 1970-06-01. Extractable organic matter in Precambrian cherts. https://ntrs.nasa.gov/citations/19700059853
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