Secondary minerals from the drilling cores of DVDP 3 (Ross Island) and 6 (Lake Vida).
Secondary minerals were collected from the drilling cores of DVDP 3 (Ross Island) and DVDP 6 (Lake Vida) and were investigated by the powder X-ray diffraction method. In No.3 core the identified minerals.are calcite, aragonite, thenardite, milabilite, gypsum, nesguehonite and thaumasite. In No. 6 core the identified minerals are calcite, aragonite, gypsum, chlorite, laumontite, chabazite, sericite, montmorillonite, prehoite and fluorite. The mineral assblage and the unusual distribution of some minerals may suggest the environments of the sedimentation of the rock and soil. The evaporates and secondary minerals around Lake Vida were also identified and gypsum, calcite, thenardite, halite, sodium niter, prehnite laumontite and chlorite were found. No correlation was noticed between the secondary minerals from No.6 drilling core and those around Lake Vida.
Morikawa, H.; Minato, I.; Ossaka, J.; Watanuki, K. Secondary minerals from the drilling cores of DVDP 3 (Ross Island) and 6 (Lake Vida). Antarctic Recordno.58:186-1961977