Altay granulite (AG), which represents the product of high-grade metamorphism in the lower crust, was newly found in the Wuqiagou area, Fuyun County in the Altay orogenic belt, Northwest China. It is composed mainly of hypersthene, augite, basic plagioclase, amphibole and brown biotite. Its mineral compositions of amphibole and biotite are rich in Mg/(Mg+Fe2+) and Ti. Geochemically, the AG is enriched in Mg/(Mg+Fe2+) and A1203, and poor in CaO, with depletion of U, Th, K and Rb contents. Furthermore, geochemical data reflect that the protolith of the AG is igneousgenetic calc-alkaline basalt formed under an island arc environment. The AG has +REE of 92.38-96.58 ppm and enriched LREE model with weak positive Eu anomaly of 1.09-1.15. In the MORB normalized spider diagram, the AG shows tridoming pattern with a strong negative Nb anomaly aud medium negative P and Ti anomalies, reflecting that the AG has tectonic relation with subduction or subduction-related materials, The P-Tconditions of peak metamorphism of the AG are 750-780℃ and >0.6-0.7GPa. Retrograde metamorphism implies that the protolith of the Altay granulite might undergo a metamorphic process along a clockwise P-T trajectory. Therefore, the formation and evolution of the AG may have a genetic association with continental collision/orogeny and the AG was taken into the Late Paleozoic meta-strata by way of tectonic emplacement.

二叠纪是塔里木盆地演化的一个很重要阶段。在研究塔里木盆地内部岩浆作用的过程中首次发现盆地内部正长岩岩体，其39-40Ar年龄为277.7±1.3Ma，属于早二叠世。该正长岩为形成于板块内部的碱性正长岩，它与盆地内部的二叠纪玄武岩、辉绿岩岩墙一起构成了一套发育于裂谷性盆地的岩浆岩组合，说明二叠纪时塔里木盆地处于裂谷构造环境。

通过野外地质、钻井地质、地球物理和同位素地质的综合调查研究，确定了盆地内部存在一条二叠纪基性岩带。该基性岩带包含有玄武岩、辉绿岩和其他基性侵入岩；它们的同位素年代为（259.8±0.9）Ma-（292.0±0.5）Ma，玄武岩、辉绿岩的岩石学、岩石化学和地球化学研究表明，它们表现出典型的板内基性岩的特征。结合盆地内部晚古生代的沉积学特征和周边的大地构造特征，认为该基性岩带是二叠纪裂谷作用的产物。在二叠纪，塔里木盆地处于克拉通内部裂谷环境。

利用磷灰石裂变径迹技术并结合库车坳陷的沉积和变形特征，对南天山的隆升和去顶作用过程进行详细的研究。南天山在中新世早期就开始了现代天山形成的隆升事件，根据样品的磷灰石裂变径迹结果，其隆升年龄为17～25Ma；而且此隆升事件是一快速隆升事件，隆升速率达到138.8～198.8m/Ma。中新世南天山隆升的南部边界并不是前人所认为的北部古生代地层和南部中新生代地层之间的冲断层，而是在南部的中新生代地层中。在库车坳陷的阳霞地区，隆升的界线位于吐格尔明背斜核部的韧性剪切带。通过库车坳陷的新生代沉积和变形特征的分析，提出了天山中新世以来的隆升与库车坳陷的沉积和变形特征存在很好的耦合关系。

Granitoids constituted a major part of the continental crust and are closely related to many kinds of metallic mineral resources. The petrology, mineralogy and geochemistry of granitoids have long been studied, but the study of physical properties of different genetic granitoids and their geological meaning has not been done at all. The authors have made the study of magnetic properties of two genetic granitoids of Guangdong Province.