This report and spreadsheet calculator contain Microsoft Excel-based equations that are useful in structural geology to calculate plunge or apparent dip when measuring lineations on a plane. The spreadsheet allows users to measure the trend or the plunge of a lineation and calculate the corresponding unknown value of trend or plunge. The spreadsheet provides the user with two options:
Option 1: Calculates the plunge of a lineation from the measured strike and dip of a plane and the measured trend of a lineation.
Option 2: Calculates two potential trends of a lineation from the measured strike and dip of a plane and a measured plunge of a lineation. The user can decide which trend is appropriate for their data.
|Title||An apparent dip calculator for spreadsheets|
|Authors||Gregory J. Walsh|
|Publication Subtype||USGS Numbered Series|
|Series Title||Techniques and Methods|
|Record Source||USGS Publications Warehouse|
|USGS Organization||Florence Bascom Geoscience Center|