Chemical Analysis data description

Chemical Analysis data description

Chemical analyses of minerals is at the core of quantitative metamorphic geochemistry. The database must:

• Provide flexibility for storing all types of chemical data including
• Major elements
• Trace elements
• Isotopic data
• Indicate precision of a value
• Preserve the spatial location of an analysis (where known)
• This will be accomplished by reference to a reference image and coordinates on that image

Required format for Chemical Analysis Upload

Chemical analyses are referenced to a sample number and a subsample, which are required (see What is a Subsample?). The sample and subsample must be uploaded/added first, before chemical analyses can be uploaded. An upload worksheet contains data arranged in columns, each with an appropriate header. The following is a list of accepted headers, with notes as to which fields are required for every uploaded analysis.

The first row is reserved for the column headers. The second row is reserved for units (chemical analysis and precision). Each additional row should contain data for each analysis to be uploaded. Only some fields are required in order to upload your data, as indicated below, but we encourage you to be thorough to maintain a database that is as versatile as possible. See example spreadsheet for more information.

Please note that chemical analyses must be in weight percent, ppm, or ppb, and molar percents will be calculated by the database with a user specified method (coming soon).

All uploaded chemical analyses will initially be private. They may then be made public once they are in My Samples. You are encouraged to check your uploaded data before making it public, as once it is public, it cannot be modified except by a system administrator, and then only to correct errors.

Analysis data description - specific fields

For more information see chemical analysis data Descriptors.