Geologists named the stratum where the caves were excavated the Jiuquan Formation. But what exactly is a stratum?A stratum is a rock assemblage that is layered and possesses common characteristics or ...

How is it possible that the strata, which were formed hundreds of thousands of years ago and buried deep underground, can rise more than 40 meters above the water surface of the Dangquan River (also k...

The Yumen Formation, located below the Jiuquan Formation, is a conglomerate layer cemented by silica and calcareous materials. It was formed by a combination of ice water and flood deposition approxim...

The Mogao Grottoes, renowned worldwide for their cultural significance, are carved into the cliffs on the western bank of the Dangquan River. Spanning roughly 1,600 meters in length and standing at a ...

After long-term research by geologists, it is found that the formation of the Crescent Spring mainly depends on three factors: the geological structure where the Crescent Spring is located, low-lying ...