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0200016435 20030402153604.0 030327s coua fr |00||||eng (pbk.) : CNY108.82 NGL a631 Cooper, Alan. 墨西哥湾北部加登班克斯和格林峡谷地区的陆坡上部天然气水化物和海底特征的地震反射调查: G1-99-GM(99002)巡航报告. chi A seismic-reflection investigation of gas hydrates and sea-floor features of the upper continental slope of the Garden Banks and Green Canyon regions, northern Gulf of Mexico : report for cruise G1-99-GM(99002) / by Alan Cooper, David Twichell and Patrick Hart. Denver, Colorado : U.S. Geological Survey, 1999. 19 p. : ill. ; 28 cm. Open-File Report / U.S. Geological Survey ; 95-570 Seismic-reflection investigation. ; Gas hydrates. aTwichell, David. ; aHart, Patrick. aCN bNGL NGL EB00063289 r¥108.82 631 C78 ayl b1 eyll0303