TY - GEN AU - Ohmoto,H AU - Kakegawa,T AU - Lowe,D R TI - 3.4-Billion-year-old biogenic pyrites from Barberton, South Africa: sulfur isotope evidence SN - 0036-8075 PY - 1997///0802 KW - Geologic Sediments KW - analysis KW - Geological Phenomena KW - Geology KW - Hydrogen Sulfide KW - Iron KW - Oceans and Seas KW - Seawater KW - South Africa KW - Sulfates KW - Sulfides KW - Sulfur Isotopes KW - Sulfur-Reducing Bacteria KW - metabolism N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S UR - https://doi.org/10.1126/science.11539502 ER -