TY - RPRT TI - Mg/Ca, Sr/Ca, and stable isotopes in modern and Holocene Protothaca staminea shells from a northern California coastal upwelling region AU - R.K. Takesue AU - A. VanGeen PY - 2004 DO - 10.1016/j.gca.2004.03.021 UR - https://pubs.usgs.gov/publication/70026556 ID - 70026556 ER -