10-m Bathymetry grid of Vineyard and western Nantucket Sounds produced from lead-line and single-beam sonar soundings, swath-interferometric, multibeam, and lidar datasets (Esri binary grid, UTM Zone 19N, WGS84)

Geologic, sediment texture, and physiographic zone maps characterize the sea floor of Vineyard and western Nantucket Sounds, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles, high-resolution bathymetry, acoustic-backscatter intensity, bottom photographs, and surficial sediment samples. The interpretation of the seismic stratigraphy and mapping of glacial and Holocene marine units provided a foundation on which the surficial maps were created. This mapping is a result of a collaborative effort between the U.S. Geological Survey and the Massachusetts Office of Coastal Zone Management to characterize the surface and subsurface geologic framework offshore of Massachusetts.

本数据集涵盖美国马萨诸塞州葡萄园湾（Vineyard Sound）及楠塔基特湾西部海域的海底地质图、沉积物质地图与地貌分区图。上述图件基于地震反射剖面、高分辨率水深测量数据、声学背散射强度数据、海底照片以及表层沉积物样品的解译成果编制而成。地震地层解译以及冰川沉积与全新世海相地层单元的填绘工作，为本次表层海底图件的编制奠定了核心基础。本次填绘项目由美国地质调查局（U.S. Geological Survey）与马萨诸塞州海岸带管理办公室（Massachusetts Office of Coastal Zone Management）合作完成，旨在系统刻画马萨诸塞州近海表层与地下的地质结构框架特征。