Wide-angle seismic refraction OBS data (SEG-Y format) from the GUlf of Mexico Basin Opening (GUMBO) project (cruise IC1010, 2010)

This data set was acquired during an OBS seismic refraction study of the deep crustal structure along the northern margin of the Gulf of Mexico. The fieldwork was conducted from October to December 2010 with M/V Iron Cat operated by Reservoir Geophysical under cruise ID IC1010, and chief scientists were Harm Van Avendonk and Gail Christeson. Four long-offset seismic refraction lines on the northern (U.S.) margin were collected. Airguns fired from the vessel were recorded on the seafloor by four-component ocean-bottom seismometers that had been supplied by the University of Texas Institute for Geophysics in Austin (UTIG) and by Geopro GmbH, Hamburg. The four seismic refraction lines all cross the margin from the shallow water near the coast to the deep water near the U.S.A.-Mexico maritime border. The data files are in SEG-Y format and were generated as part of the GUlf of Mexico Basin Opening (GUMBO) project.

本数据集源自针对墨西哥湾北部陆缘深部地壳结构开展的海底地震仪（Ocean Bottom Seismometer, OBS）地震折射研究。外业工作于2010年10月至12月期间开展，由Reservoir Geophysical公司运营的“铁猫号”机动科考船（M/V Iron Cat）执行任务，航次编号为IC1010，首席科学家为Harm Van Avendonk与Gail Christeson。本次研究采集了墨西哥湾北部（美国一侧）陆缘的4条长偏移距地震折射测线。科考船激发的气枪信号由四分量海底地震仪在海底接收，此类仪器由得克萨斯大学奥斯汀分校地球物理研究所（UTIG）以及汉堡的Geopro GmbH公司提供。4条地震折射测线均横跨该陆缘，从近岸浅水区延伸至美墨海洋边界附近的深水区。所有数据文件均采用SEG-Y格式，为墨西哥湾盆地张裂（Gulf of Mexico Basin Opening, GUMBO）项目的研究成果之一。