TY - RPRT TI - Paleozoic and Mesozoic silica-rich seawater: Evidence from hematitic chert (jasper) deposits AU - Tor Grenne AU - J. F. Slack PY - 2003 DO - 10.1130/0091-7613(2003)031<0319:pamsrs>2.0.co;2 UR - https://pubs.usgs.gov/publication/70025857 ID - 70025857 ER -