OCCURRENCE OF BIOGENIC STERANES AND PENTACYCLIC TRITERPANES IN AN EOCENE SHALE (52 MILLION YEARS) AND IN AN EARLY PRECAMBRIAN SHALE (2.7 BILLION YEARS): A PRELIMINARY REPORT.
作者信息
Burlingame A L, Haug P, Belsky T, Calvin M
机构信息
DEPARTMENT OF CHEMISTRY, UNIVERSITY OF CALIFORNIA, BERKELEY.
出版信息
Proc Natl Acad Sci U S A. 1965 Nov;54(5):1406-12. doi: 10.1073/pnas.54.5.1406.