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...many hills are horsts (blocks of the Earth’s crust uplifted along faults), while the valleys have been formed by grabens (blocks of the Earth’s crust that have been thrust down along faults). The Jiaolai Plain divides this region into two parts. The eastern part is lower, lying at elevations averaging below 1,500 feet (450 metres), with only certain peaks and ridges rising to 2,500 feet and...
in Shantung: Relief )A broad, marshy depression, the Chiao-lai Plain (sometimes known as Wei-hsien Valley), extends for about 100 miles from Lai-chou Bay in the Po Hai, south to Chiao-chou Bay in the Yellow Sea, near Tsingtao, and westward into the North China Plain. The generally flat surface of the plain is interrupted occasionally by bedrock-derived monadnocks, or residual rocks or hills, that have resisted...
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