Mixed-230Th/U formation ages and secondary uranium concentrations of above-water carbonates, and primary uranium concentrations of continuously submerged calcite at Devils Hole, Nevada

For more than a half million years, dense vein calcite has been precipitating in Devils Hole, located about 115 km northwest of Las Vegas, Nevada. This process also...超过50万年以来，致密脉状方解石（dense vein calcite）一直在位于美国内华达州拉斯维加斯西北约115公里处的魔鬼洞（Devils Hole）中持续沉积。这一过程同时……