As bearing layer of foundation,with special construction properties,the value of bearing capacity and deformation index of granite residual sandy sticky clay is difficult to decide.

The Precambrian granitoid pluton emplaced in the Paleoproterozoic-Mesoproterozoic Baoban Group in Gezhen area, northwest Hainan Island, south China was dated by SHRIMP U-Pb analysis assisted by CL image.

Recommendation for the new geochemical classification scheme of granitic rocks and review for the relevant subjects;

Using LA-ICPMS,this study firstly reports magmatic zircon ages for granitic rocks from the Nansha micro-block,South China Sea.

The streaky structures of granitic rock extraordinarily develop in Tiantangshan area, they can be regarded as two types as differentiated streaky structure and transpositional-compound streaky structure according to their geneses.