Noble gas Originally from PetDB. Syntax modified to remove underscores. Variables associated with noble gasses Variables associated with radiogenic isotopes Radiogenic isotopes Originally from PetDB. Syntax modified to remove underscores. Instrumentation Originally from CUAHSI HIS GeneralCategoryCV. See http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=GeneralCategoryCV. Variables associated with instrumentation and instrument properties such as battery voltages, data logger temperatures, often useful for diagnosis. Biota Variables associated with biological organisms Originally from CUAHSI HIS GeneralCategoryCV. See http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=GeneralCategoryCV. Originally from PetDB. Syntax modified to remove underscores. Rare earth element Variables associated with rare earth elements Originally from PetDB. Syntax modified to remove underscores. Age Variables associated with age Geology Originally from CUAHSI HIS GeneralCategoryCV. See http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=GeneralCategoryCV. Variables associated with geology or geological processes Originally from PetDB. Syntax modified to remove underscores. Rock mode Variables associated with a rock mode Chemistry Variables associated with chemistry, chemical analysis or processes Originally from CUAHSI HIS GeneralCategoryCV. See http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=GeneralCategoryCV. Variables associated with end members Originally from PetDB. Syntax modified to remove underscores. End-Member Variables associated with trace elements Trace element Originally from PetDB. Syntax modified to remove underscores. Unknown The VariableType is unknown. Originally from CUAHSI HIS GeneralCategoryCV. See http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=GeneralCategoryCV. Hydrology Originally from CUAHSI HIS GeneralCategoryCV. See http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=GeneralCategoryCV. Variables associated with hydrologic variables or processes Originally from CUAHSI HIS GeneralCategoryCV. See http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=GeneralCategoryCV. Soil Variables associated with soil variables or processes ODM2 Variable Type Controlled Vocabulary ODM2 Working Group A vocabulary for describing the type of Variables. VariableTypes provide a way to group Variables into categories for easier querying and filtering. Variables associated with uranium series Originally from PetDB. Syntax modified to remove underscores. Uranium series Climate Originally from CUAHSI HIS GeneralCategoryCV. See http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=GeneralCategoryCV. Variables associated with the climate, weather, or atmospheric processes Originally from PetDB. Syntax modified to remove underscores. Variables associated with a speciation ratio Speciation ratio Variables associated with a ratio Originally from PetDB. Syntax modified to remove underscores. Ratio Originally from CUAHSI HIS GeneralCategoryCV. See http://his.cuahsi.org/mastercvreg/edit_cv11.aspx?tbl=GeneralCategoryCV. Water quality Variables associated with water quality variables or processes Originally from PetDB. Syntax modified to remove underscores. Stable isotopes Variables associated with stable isotopes Variables associated with modeled data Originally from PetDB. Syntax modified to remove underscores. Model data Volatile Originally from PetDB. Syntax modified to remove underscores. Variables associated with volatile chemicals Variables associated with major oxides or elements Major oxide or element Originally from PetDB. Syntax modified to remove underscores.