Latest News

Lithium mining is gradually sinking Chile's Atacama salt flat, research study shows

Chile's Atacama salt flat is sinking at a rate of 1 to 2 centimeters (0.4 to 0.8 inches). per year due to lithium salt water extraction, according to a research study. by the University of Chile.

The study utilized satellite information gathered in between 2020 and. 2023 to confirm contortions in the Earth's crust. It was. released in the IEEE Transactions on Geoscience and Remote. Picking up journal.

Francisco Delgado, a scientist at the Department of Geology. at the University of Chile and lead author of the report, stated. the sinking area remains in the southwest part of the salt flat where. lithium miners run.

It's not the entire salt flat, Delgado said, adding that. the area coincides with parts where business are doing the majority of. their pumping or the most intense pumping.

In his report, Delgado stated the pumping of lithium-rich. salt water takes place at a much faster rate than the recharge of aquifers,. resulting in subsidence, or the down vertical movement of the. Earth's surface area.

Subsidence due to irreversible changes in permeability can. be an extremely serious problem, Delgado stated, including that the location. procedures roughly 8 kms (5 miles) north to south and 5 kms. ( 3 miles) east to west.

The information was acquired by the SAOCOM-1 satellite. constellation of Argentina's National Commission for Area. Studies, utilizing Interferometric synthetic-aperture radar.

Chile, the world's second-largest lithium producer, extracts. the lightweight metal from the Atacama salt flat, which has one. of the largest lithium reserves on the planet.

The metal, essential in electrical automobiles, batteries and the. energy shift, is gotten by evaporation where 90% of the. water is lost to the atmosphere.

Native communities that ring the Atacama worry that mining. might be depleting scarce freshwater and lithium-rich brine,. lowering its accessibility for people and wildlife.

Environmental authorities have charged SQM and Albemarle,. the 2 lithium manufacturers in Chile, with possible irregularities. when it pertains to brine extraction. They intend to change to Direct. Lithium Extraction (DLE).

DLE assures to be more sustainable by reinjecting. groundwater after drawing out lithium, however the innovation is. still in the screening phase.

Chile's SQM just recently partnered with state-owned copper giant. Codelco as the nation intends to broaden its lithium production.

(source: Reuters)