Artesian aquifer its recharge zone is at a higher elevation than the head of the well. Artesian wells were named after the former province of Artois in France, where many artesian wells were drilled by Carthusian monks from 1126. Artesian aquifer An aquifer is a geologic layer of porous and permeable material such as sand and gravel, limestone, or sandstone, through which water flows and is stored. An artesian aquifer is a confined aquifer containing groundwater under positive pressure. An artesian aquifer is trapped water, surrounded by layers of impermeable rocks or clay, which applies positive pressure to the water contained within
Murder of the monks of Tibhirine Armed Islamic Group (GIA) arrived at the monastery of Tibhirine and kidnapped seven monks. Two others, Father Jean-Pierre and Father Amédée, were in separate rooms and escaped the kidnappers' notice. After the kidnappers left, the remaining monks attempted to contact the police, but found that the telephone lines had been cut. As there was a curfew in force, they had to wait until morning to drive to the police station in Médéa. On 18 April, the GIA's communiqué no. 43 announced that they would release the monks in exchange for Abdelhak Layada, a former GIA leader who had been arrested