JPEG images of seismic data collected offshore of the Chandeleur Islands, LA, 2006.

In 2006 and 2007, the U.S. Geological Survey, in partnership with Louisiana Department of Natural Resources and the University of New Orleans, conducted geologic mapping to characterize the sea floor and shallow subsurface stratigraphy offshore of the Chandeleur Islands in Eastern Louisiana. The mapping was carried out during two cruises on the R/V Acadiana. Data were acquired with the following equipment: an SEA Ltd SwathPlus interferometric sonar (234 kHz), Klein 3000 dual frequency sidescan sonar, and an Edgetech 512i chirp subbottom profiling system. The long-term goal of this mapping effort is to produce high-quality geologic maps and geophysical interpretations that can be utilized to investigate the impact of Hurricane Katrina in 2005 and to identify sand resources within the region. For more information on the seismic surveys see http://woodshole.er.usgs.gov/operations/ia/public_ds_in fo.php?fa=2006-015-FA These data are also available via GeoMapApp (http://www.geomapapp.org/) and Virtual Ocean ( http://www.virtualocean.org/) earth science exploration and visualization applications.2006年至2007年间，美国地质调查局（U.S. Geological Survey）联合路易斯安那州自然资源部（Louisiana Department of Natural Resources）与新奥尔良大学（University of New Orleans），针对路易斯安那州东部尚德勒尔群岛（Chandeleur Islands）近海区域开展地质填图作业，以刻画该区域海底与浅地下地层结构。本次填图依托“R/V阿卡迪亚号”科考船完成两次航次作业。数据采集采用以下设备：SEA有限公司SwathPlus干涉声呐（234 kHz）、Klein 3000双频侧扫声呐，以及Edgetech 512i型啁啾海底剖面系统。本次填图工作的长期目标为产出高质量地质图件与地球物理解译成果，用于探究2005年卡特里娜飓风（Hurricane Katrina）对该区域的影响，并识别区域内的砂资源。 有关本次地震勘探的更多详细信息，请访问：http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2006-015-FA。该数据集亦可通过GeoMapApp（http://www.geomapapp.org/）与Virtual Ocean（http://www.virtualocean.org/）两款地球科学探索与可视化应用获取。