|U.S. Geological Survey Data Series 344|
Information defining the interpreted core classification profiles and explaining how the data were obtained and processed is available in the Methods section under Interpreted Core Classification - Converting Analog Data to Digital Data or in the Software section, which contains the downloadable programs for the digitizing process.
The interpreted core classification profiles are available as Microsoft Excel spreadsheets and are Vibracore Description Sheets that have been digitized and converted into a spreadsheet format. This digital format contains numerical and text data in a table as an XLS file.
Cruise CR83 and P86
The interpreted core classification profile data contain numeric and text information related to the numerous parameters associated with the description sheet.
Another version of the spreadsheets is presented that is similar to the numeric and text version but has undergone more processing to contain color and symbols within some of the spreadsheet columns. This version is only available for the 00SCC bss00_ cores.
This version contains tabs to more information at the bottom of the “data” spreadsheet: a legend tab that identifies the sand texture, color, and structures (left); a sand% tab; a silt% tab; and a clay% tab. The last three tabs show a graphical representation of the percent of grain size considered to be sand, silt, or clay represented in the core versus depth downcore.
For more information, see the Methods section under Interpreted Core Classification - Converting Analog Data to Digital Data.
Accessing the Data
To access the data for each core simply click on the Study Area Map (right) and then navigate to the section that contains the desired core. Right-click (to open page in a new window) on a core or core label to activate a table that contains links to specific data sets for each core.
The vibracore description sheet data for each cruise are presented in the data table on the Core Data Table page. The table contains a column entitled Interpreted Core Classification Profiles that contains each cores thumbnail preview and links to XLS files.