Description: The Isopach Arc layer contains contour lines, or isopachs, that represent positions of equal formation thickness of a sand body, or other geologic unit, with the thickness being measured vertically with respect to the seafloor. The investigations from which these geospatial data were derived were fully or partially funded by the Bureau of Ocean Energy Management (BOEM) or partner agencies. Attribution consists of location, feature ID and description, study date, contour value (thickness), and study ID. The associated study report(s) are linked via the related Link Documents table within the Marine Minerals Information System (MMIS) geodatabase. This dataset will be updated as new and existing data are received and incorporated in to the Marine Minerals Information System (MMIS) geodatabase.
Description: The Paleochannel Ply (polygon) layer contains polygons that represent areal delineations of shallow subsurface paleochannels/paleovalleys that can be traced across multiple adjacent and or intersecting geophysical (e.g., seismic) tracklines. Paleochannels are remnants of fluvial and estuarine channel systems that have been filled with sediments and overlain by younger stratigraphic units. The features gathered into this MMIS layer were acquired from multiple investigators and projects, whose research on or around the Outer Continental Shelf (OCS) was funded fully or partially by the Bureau of Ocean Energy Management (BOEM) or partner agencies. Attribution consists of feature description, location, age, and identification properties associated with each study. The associated study report(s) are linked via the related Link Documents table within the Marine Minerals Information System (MMIS) geodatabase. This dataset will be updated as new and existing data are received and incorporated in to the Marine Minerals Information System (MMIS) geodatabase.
Description: The Paleochannel Arc layer contains lines that represent the boundaries and or central axes (thalwegs) of shallow subsurface paleochannels/paleovalleys interpreted from trackline geophysical data (e.g., seismic). Paleochannels are remnants of fluvial and estuarine channel systems that have been filled with sediments and overlain by younger stratigraphic units. The features gathered into this MMIS layer were acquired from multiple investigators and projects, whose research on or around the Outer Continental Shelf (OCS) was funded fully or partially by the Bureau of Ocean Energy Management (BOEM) or partner agencies. Attribution consists of feature description, location, age, and identification properties associated with each study. The associated study report(s) are linked via the related Link Documents table within the Marine Minerals Information System (MMIS) geodatabase. This dataset will be updated as new and existing data are received and incorporated in to the Marine Minerals Information System (MMIS) geodatabase.