paleogeothermal gradient

基本解释

This paper stresses on the meaning of paleogeothermal gradient and its change with time in the estimation of amount of erosion;
强调了古地热梯度随时间的变化及其在剥蚀厚度估算中的意义；
Thehigh thermal fluid which was brought during the magma activity might increase the paleogeothermal gradient, and accelerate the thermel evolution of source rocks.
岩浆活动伴随的高热流可以提高盆地古地温，加速烃源岩演化，亦将使与岩浆岩毗邻的烃源岩达到高成熟或过成熟；
Through integrated study of crystallinity of authigenic illite and chemical constitution of authigenic chlorite, it is concluded that the Cenozoic paleogeothermal gradient is from 37.
综合应用自生伊利石结晶度和自生绿泥石化学成分，得出济阳坳陷新生代古地温梯度为37。