SEARCHING FOR NEEDLES
MUSTARD, John1, PARENTE, Mario2, DAS, Eashan1, LIN, Honglei3 and WU, Wing1, (1)Earth, Environmental and Planetary Scienes, Brown University, 324 Brook street, Box 1846, Brown University, Providence, RI 02912, (2)Electrical and Computer Engineering, University of Massachusetts, Amherst, MA 01003, (3)Institute of Geology and Geophysics, Chinese Academy of Sciences (IGGCAS), No. 19, Beitucheng west Road, Beijing, China