Boron/Lithium/Potash
Dajin controls through an intermediary 100% of a series of mineral concessions in Salta and Jujuy provinces of Argentina that cover regions known to or believed to contain brines rich in lithium, potassium and boron. The concessions total approximately 103,000 hectares in various drainage basins including approximately 83,000 hectares of salar (salt lake) and Tertiary paleo-salar in the Salinas Grande/ Guayatayoc salt lakes basin.
Salinas Grande/ Guayatayoc salt lakes basin was chosen as Dajin’s principal focus for lithium exploration on the basis of data that are published in various scientific publications, indicating permissive brine chemistries accompanied by lithium concentrations in surface and near surface waters that are within the range of lithium concentrations being produced elsewhere and enabling infrastructure. Access to the concessions is by paved national highway. The several local population centers are serviced by the regional electric grid.
The Salinas Grande/ Guayatayoc salt lakes basin is contained in a closed basin that is fault bonded to the west forming a Tertiary age sedimentary basin. Based on seismic interpretations the basin may locally be more than 800 metres thick and contain several salt layers, which are believed to have been deposited during earlier climatic maxima. The older salt beds are believed to be similar in thickness to the current salt deposits. Seismic data interpretation indicates the salt beds may be as much as 150 to 200 metres thick. The potential exists for the older brines that flood the sedimentary/structural basins to contain substantially greater concentrations of lithium and potassium than the current near surface brines due to the more extreme climatic conditions extant during earlier climatic maxima when these older salt deposits were precipitated. Anomalously high lithium concentrations, up to 1,600 ppm, in near surface brines present in specific regions of Salinas Grande salt lake are believed to be due to recharge of the salt lake by seepage of paleo brines along faults penetratingthe sedimentary/structural basins. Additional advantages to a production plan based on the brine flooded sediments anticipated in the sedimentary/structural basins is that the specific yield of lithium in brine from the clastic sediments is not expected to be restricted by either low permeability due to recrystalizing salt or brine dilution during periodic flooding of Salinas Grande by fresh water.
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