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| Detailed File Information |
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| File Name |
d.morb.comp.xls |
| Data Type |
spreadsheet |
| Computer Program |
Microsoft Excel 2000 |
| File Size |
688.00 KB - 1 file |
| Expert Level |
Science Overview (Specialist) |
| Contributor |
Vincent J.M. Salters |
| Source |
Salters & Stracke 2004
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Description
This file contains the data used to obtain the average MORB composition in three worksheets. The 'References' worksheet contains the references for the data given by the PetDB database. The 'Samples' worksheet contains the chemical data and the keyed reference for the samples used in the estimate. Row 141 through 148 of this worksheet contains the ridge segment average of the Southern Mid-Atlantic Ridge, based on the data of Le Roux et al that have reference numbers 1107 and 1110 in the PetDB database. Worksheet 'EWI9309' contains the data on which the segment averages from row 141 through 148 of the 'Samples' worksheet are based. The latter worksheet also provides the average, median as well as the standard deviation for the MORB estimate for both elemental abundances, as well as trace element ratios that are used to calculate the depleted mantle (DM) composition. |
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Keywords
Depleted Mantle, DM, DMM, N-MORB, D-MORB, GERM, Geochemical Earth Reference Model, PetDB |
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Project -- Earth Science Data Compilations -- Compendium of Geochemistry
The book focuses on compositional data and related references for such substances as solar photosphere, meteorites, igneous rocks, soils, sedimentary rocks, surficial waters, marine and terrestrial organisms (including humans), and aerosols. It emphasizes the use of original raw data as much as possible, and applies the statistical technique of factor analysis to elucidate any underlying interrelationships among chemical elements and given sample sets. Whenever applicable, simple chemical thermodynamic models are introduced to explain the observed partitioning of elements among different phases. |
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