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根据汉诺坝尖晶石石榴石二辉辉石岩包体矿物成分新资料和前人的尖晶石石榴石二辉橄榄岩包体矿物成分资料，运用斜方辉石Ｃａ溶解度温度计和斜方辉石－石榴石Ａｌ分配压力计，计算了尖晶石—石榴石相转变带的温度和压力条件，首次获得了汉诺坝地区的新生代古地温曲线。尖晶石石榴石二辉辉石岩包体代表的温度范围为９３０～９７８℃，压力范围为１４２～１６５ＧＰａ：尖晶石石榴石二辉橄榄岩包体代表的温度范围为９９１～１１１０℃，压力范围为１５８～２１６ＧＰａ，与最新的实验结果基本吻合。地温曲线沿大洋地温曲线（曲线方程为ｔ＝２５２４＋８９７４７８ｐ－１８３０８ｐ２）上方近平行延伸。推测汉诺坝玄武岩的起源深度至少为７０ｋｍ。二辉辉石岩包体来自较冷的岩石圈，而二辉橄榄岩来自岩石圈与软流圈的过渡带，并且表明后者的地温梯度以对流热地温梯度为主。
According to the new data of the mineral composition of the hannaiba spinel garnet dihexalite enclaves and the mineral composition data of the former spinel garnet lherzolites inclusions, the orthopyroxene Ca solubility thermometer and orthopyroxene-pomegranate Al distribution pressure gauge, calculate the temperature and pressure conditions of spinel-garnet phase transformation zone, and obtain the Cenozoic paleotemperature curve for Hannab dam for the first time. The spinel garnet dipermallite inclusions represent the temperature range of 930 ~ 978 ℃, the pressure range of 142 ~ 165GPa: spinel garnet lherzolite inclusions on behalf of the temperature range of 991 ~ 1110 ℃, The pressure range of 158 ~ 216GPa, basically consistent with the latest experimental results. The geotemperature curve extends nearly parallel above the geotemperature curve (t = 2524 + 897478p-18308p2). It is speculated that the origin depth of Hannuoba basalts is at least 70km. The dihexalite enclaves come from colder lithosphere, while the lherzolites come from the transition zone between lithosphere and asthenosphere, and show that the geothermal gradient of the latter is dominated by the convective geothermal gradient.