盆地热演化史的计算机数值模拟

Computer numerical modeling for evolution of thermal history of basin

成都理工学院, 成都610059

Chengdu Institude of TeChnology, Chengdu 610059

热史模拟是盆地模拟的关键。正、反演数值模拟通过不同的路径来恢复盆地热史；而磷灰石—锆石径迹古地温作为一种较可靠的地质温度计提供了新的古地温信息。三者相互比较和验证,有助于正确认识盆地古地温。本文将正、反演数值模拟方法应用于鄂尔多斯盆地古生界热演化史的恢复中,并和磷灰石—锆石径迹古地温相互比较和验证,取得了三者近于一致的结果。

This paper introduces the forward and inverse problems of numerial modeling. It has been applied to recover the evolution of thermal history of the palaeozic Era in Ordos basin. Comparing and testing the metheds and the fission track of phosphorite and zircon, we got nearly same results. Therefore, we can increase the degree of confidence for recovering history of palco earth temperature.