“异常”概念在地质学中并不陌生，如地球物理异常和地球化学异常一直是进行矿产预测的重要依据。

The conception of abnormity is not strangeness in the field of geology. Physical geography abnormity and geochemistry abnormity are the important gist for the forecasting of mineral resources.

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而地震反演结果则揭示该研究区存在地层速度结构异常，是南中国海存在天然气水合物的定量地球物理证据。

Results of seismic data inversion reveal the abnormal velocity of strata, the quantitative geophysical evidence for the existence of gas hydrate in South China Sea.

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这些遥感构造和地球物理场中的局部异常，是进一步找矿评价的重要标志。

So the local anomaly of geophysical field and remote sensing structure are of important signs for ore prospecting evaluation.

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