Potash mine ore rock in Vientiane Basin is the next section of rock under paragraph Paleogene Paleocene Tagong group,belonging concealed seam,wide distribution, big thickness, high grade.Due to the late reformation potash seam and seam deposition substrate topography difference of potash seam locally deleted.Before drilling disclosure controls seam, in order to predict the occurrence location of the ore body, effectively saving prospecting costs.According Vientiane Basin Paleogene Paleocene Tagong rock group rock salt, potassium and magnesium between rock and mudstone density difference that the gravity measurements can distinguish salt seam of depth, thickness, and potash seam often occurs in Paleogene Paleocene Tagong set an upper thick layer of rock salt layer, negative gravity anomalies and potash seam corresponding to good, it is drilling to verify the preferred region, the Vientiane Basin potash mine exploration geophysical methods more effective. |