罗伊登说，这个地区在地质上极其不寻常，因为在东部的四川盆地和西部的托比坦高原之间的边界上有非常陡峭的斜坡。
The region is extremely unusual geologically, Royden says, because of the very steep slopes at the boundary between the Sichuan Basin to the east and the Tobetan plateau to the west.
柴达木盆地阿尔金斜坡中段，是寻找隐蔽油气藏的有利地区之一。
The medium section of Altun slope in Qaidam basin is one of the favourable areas in the exploration of subtle petroleum reservoirs.
松辽盆地西部斜坡区勘探潜力大，但因勘探程度低，研究难度较大。
Western slope of Songliao basin has large prospecting potential but with great research difficulty because of low exploration degree.
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