Abstract
<p>The Demagnetization Analysis in Excel (DAIE) software is a single Microsoft Excel file designed for viewing and analyzing stepwise demagnetization data of both discrete and u-channel samples in paleomagnetic studies. DAIE is an Excel workbook and has an open modular structure organized in 10 worksheets. It is designed for an easy use and an interactive operability; all the commands and choices can be entered by sliding menus associated to single cells. The standard demagnetization diagrams and various parameters of common use are shown on the same worksheet including selectable parameters and user's choices. The remanence characteristic components may be computed by principal component analysis (PCA) on a selected interval of demagnetization steps. Saving of the PCA data can be done both sample by sample, or in automatic by applying the selected choices to all the samples included in the file. The whole workbook is free both for use and editing and it is available for download on a dedicated website.</p>
Highlights
The stepwise demagnetization procedures and measurement cycles carried out in modern paleomagnetic studies result in the production of large datasets, which need versatile and fast software for their display and analysis
Besides the advantages linked to their modern analytical features, the development of new software packages is fostered by the need to overcome the problems linked to the limited capability and the loss of operability of early programs, dependent on obsolete computer languages and/or platforms
Blue worksheets PCA_Output worksheet – This worksheet lists 17 parameters for each sample, which includes all the outputs of the principal component analysis (PCA) and some of the input data (Figure 7). This worksheet includes: – Sample Number – Sample ID – Fit Type – Coordinate System – Declination from PCA – Inclination from PCA – Maximum angular deviation (MAD) – The lower step selected for PCA – The upper step selected for PCA – The number of steps selected for PCA – The natural remanent magnetization (NRM) intensity – The median destructive field (MDF) – The ΔGRM/ΔNRM – The four orientation angles, according to the 12, 0, 12, 0 convention of the AGICO P1-P4 codes
Summary
The stepwise demagnetization procedures and measurement cycles carried out in modern paleomagnetic studies result in the production of large datasets, which need versatile and fast software for their display and analysis. The viewing and the analysis of the demagnetization data are done in the Commands_Plots worksheet, which includes all the main demagnetization diagrams, as well as all the selectable and computed parameters.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
