The tuffaceous blanketed the entire basin . 凝灰岩充填着整个盆地。
2.
The tuffaceous formation, isolated remnants, are about 200-250 ft thick . 凝灰岩构造的局部残存段的厚度约为200-250。
3.
They reported the abnormal uranium content of waters issuing from tuffaceous rocks . 他们发现，从凝灰岩中流出的水中铀含量反常。
4.
The tuffaceous formation , isolated remnants , are about 200 - 250 ft thick 凝灰岩构造的局部残存段的厚度约为200 - 250 ? 。
5.
The tuffaceous formation , isolated remnants , are about 200 - 250 ft thick 凝灰岩构造的局部残存段的厚度约为200 - 250 ?? 。
6.
Lithologically different rock sheets intertexturally superimposed with faults and folds of various styles . while , the southern belt is chiefly of devonian tuff , tuffaceous schist , marble relatively stable in strata and manifested by regional asymmetric fold easi - westward in axis , with well developed superimposed overthrust south - northward which controlled the whole structural framework in this area 南带以泥盆系凝灰岩、凝灰质片岩、大理岩为主，地层相对稳定，表现为轴向东西的区域性不对称褶皱，广泛分布控制全区构造格局的南北向逆冲推覆的叠瓦式断裂。
