TY - RPRT TI - Environmental magnetic implications of greigite (Fe3S4) formation in a 3 m.y. lake sediment record from Butte Valley, northern California Andrew AU - P. Roberts AU - R. L. Reynolds AU - K.L. Verosub AU - D.P. Adam PY - 1996 DO - 10.1029/96gl02831 UR - https://pubs.usgs.gov/publication/70018601 ID - 70018601 ER -