Ship Tracklines for Seismic-Reflection Data Collected in Southern Rhode Island Sound in 1980 (A80_6LINES2.SHP)

During 1980, the U.S. Geological Survey (USGS) conducted a seismic-reflection survey utilizing Uniboom seismics in southern Rhode Island Sound aboard the Research Vessel Asterias. This cruise totalled 3 survey days. Data from this survey were recorded in analog form and archived at the USGS. Due to recent interest in the geology of Rhode Island Sound and in an effort to make the data more readily accessible while preserving the original paper records, the seismic data from this cruise were scanned and converted to TIFF images and SEG-Y data files. Navigation data were converted from LORAN-C time delays to latitudes and longitudes, which are available in ESRI shapefile format and as eastings and northings in space-delimited text format.

1980年，美国地质调查局（U.S. Geological Survey, USGS）搭乘“Asterias号”研究船（Research Vessel Asterias），在罗德岛湾南部开展了采用Uniboom震源系统的地震反射勘探。本次航次共计3个勘探日。本次勘探采集的数据以模拟格式记录，并存档于美国地质调查局。鉴于近期学界对罗德岛湾地质的研究兴趣，且为在保留原始纸质记录的前提下提升数据可获取性，本次航次的地震数据已被扫描并转换为TIFF图像与SEG-Y数据文件。导航数据由LORAN-C时间延迟值转换为经纬度坐标，该数据以ESRI形状文件（ESRI shapefile）格式提供，同时也以空格分隔的文本格式提供东距与北距坐标。