To date, komatiites with spinifex textures have not been found in the supracrustal rocks, but rock sequences similar to greenstones metamorphosed up to upper amphibolite facies are often observed.

在龙岗地块与北带之间接触带上，一条晚太古宙-古元古宙时期线性活动带。

The REE patterns for bitumen is similar to those for supracrustal sedimentary rocks in areas with no basement faults but stabilized structural settings.

在基底断裂不造稳定区域原油沥青,其稀土模式具有与上地壳沉积岩相似特征。