Hillshaded-relief image produced from the late Wisconsinan to early Holocene regressive unconformity (Ur) beneath Vineyard and western Nantucket Sounds, Massachusetts (GeoTIFF Image; UTM, Zone 19N, WGS 84)

Geologic, sediment texture, and physiographic zone maps characterize the sea floor of Vineyard and western Nantucket Sounds, Massachusetts. These maps were derived...本数据集包含海底地质图、沉积物纹理图（sediment texture map）及地貌分区图（physiographic zone map），用以表征美国马萨诸塞州葡萄园湾（Vineyard Sound）与楠塔基特湾西部（western Nantucket Sounds）海域的海底特征。上述地图均源自……