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1. An enormous amount of time is represented by these rocks and unconformities, almost a third of the entire history of Earth.

2. Another clearly discernible unconformity separates the Grand Canyon series from the overlying pebbly brown Tapeats Sandstone.

3. An angular unconformity recognised in the Upper Carboniferous on the flanks of the London-Brabant Massif was of particular interest in this respect.

4. An angular unconformity within the Pliocene stratum was found during field exploration in northwestern part of the Gonghe Basin.

5. The presence or absence of an angular unconformity within the Shuangqiaoshan Group in northern Jiangxi and the related crustal movement has long been, a subject of much controversy.

6. Generally the arithmetic of the matrix multiplication unconformity commutative law, but under special conditions they are interchangeable.

7. The unconformity between the Eocene and the Lower Cretaceous is common in Jiuquan basin.

8. Unconformity with your instructions, we have have the goods insure against total loss only.

9. Angular unconformity belongs to an intraplate folded- orogenic deformation. Parallel unconformity is the record of intraplate epeirogenic deformation.

10. Gradational strata or a true unconformity exist between the two sequences.

11. The unconformity marks the change from fluvial to marginal marine deposition.

12. Field surveys and seismic exploration show that the lowest regional angular unconformity older than the Carboniferous developed between the Cretaceous and the pre-Cretaceous strata.

13. The authors' study indicates that the Zhangjiakou Formation not only exists but also has an angular unconformity with the Yixian Formation; they are the products in different tectonic horizons.

14. Principle of original horizontality , principle of superposition, principle of lateral continuity, principle of crosscutting relationship and unconformity.

15. It is obvious that Abei region may be a eroded unconformity oil bearing area.http://sentencedict.com

16. The other one is between the Upper Ordovician Terekawat Formation and the underlying formations, which presents commonly as a parallel unconformity or an angular unconformity in some regions.

17. In fact, the available sand is insufficient to form a continuous blanket overlying the unconformity.

18. On the southwestern margin of the basin there occur middle Yanshanian Late Triassic and Early Cretaceous coarse clastic molasse-like deposits and angular unconformity.

19. From late Cretaceous to Paleocene, it is the time of basin extruding, uplifting and denudation, therefore a larger angular unconformity formed between Mesozoic and Cenozoic.

20. The contact relationship between Silurian and Devonian is parallel unconformity.

21. At Scinto 6 uranium occurs in much altered dolerite below the unconformity.

22. Yanqi-Kuche basin reformed through late Yanshan and Xishan movement, there was angular unconformity between tertiary stratum and others that under tertiary.