CONSTRAINING THE SOURCE OF BORON THAT LOCALLY CONTAMINATES THE GROUNDWATER IN THE NEWARK BASIN, NEW JERSEY
Preliminary results show that sphalerite, galena, barite, and the lacustrine rocks show a low concentration of boron (<40 ppm). Therefore, on the basis of the available data, these ore deposits and the host rocks are not possible sources of boron. The Ba-Pb-Zn-rich fluids flowing through these Boron-depleted lacustrine rocks are, therefore, depleted in Boron. Hence, the analyzed ore are also Boron-depleted and are not the source of Boron that contaminated groundwater. Sulfides (pyrite and chalcopyrite) associated with diabase can, however, be a source of boron.