{"thcode":2,"term":{"code":2089,"name":"stratigraphic thickness","parent":1103,"scope":"Thickness of earth material layers or groups of such layers, often portrayed as isopachs (contours) or gridded data."},"uf":[{"name":"isopach","usewith":false},{"name":"isopach maps","usewith":{"code":700,"name":"maps and atlases","parent":808,"scope":"Representation, usually on a flat surface, of a part or whole of the Earth or other parts of the universe.  Collections of maps linked digitally or bound together in a book are called atlases."}},{"name":"sediment thickness","usewith":false},{"name":"stratigraphic thickness maps","usewith":{"code":700,"name":"maps and atlases","parent":808,"scope":"Representation, usually on a flat surface, of a part or whole of the Earth or other parts of the universe.  Collections of maps linked digitally or bound together in a book are called atlases."}}],"bt":[{"code":1103,"name":"stratigraphic sections","parent":287,"scope":"Vertical arrangement in layers of rock units whose sequence is used to study the geological history of the strata."},{"code":287,"name":"earth characteristics","parent":1174,"scope":"The measurable, definable properties and features of the earth."},{"code":1174,"name":"topics","parent":1,"scope":"Themes, subjects, and concerns for which USGS information resources are relevant."},{"code":1,"name":"Categories","parent":null,"scope":"Thematic terms for categorizing information resources.  This thesaurus is intended to support finding and understanding scientific information."}],"nt":[],"rt":[]}