Standard Lithium Completes Successful Gravity Geophysical Survey at Cadiz Dry Lake, California Lithium Project VANCOUVER, British Columbia, April 19, 2018 (GLOBE NEWSWIRE) -- Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLL) (FRA:S5L) is pleased to announce that Hasbrouck Geophysics Inc....