Linear Borehole Oriented Core

The Linear Borehole Oriented Core Traverse Type should be used when you have an oriented core taken from a linear borehole (i.e., a borehole which is assumed to have a constant Trend/Plunge orientation for the length of the borehole).

If you have an oriented core from a non-linear (curved) borehole, which has curvature defined by a survey file, then you should use the Curved Borehole Oriented Core Traverse type rather than the Linear Borehole Oriented Core option.

Data Orientation Convention

The Data Orientation Convention refers to the orientation format of the data collected on a Traverse. For each Linear Borehole Oriented Core discontinuity, the orientation format of the data you enter in the first two columns of the Discontinuities grid (in the Orientation Data dialog) is always Alpha/Beta, which refers to the local angles Alpha and Beta for discontinuities logged on oriented core. See the Borehole Oriented Core topic for the definitions of Alpha/Beta.

The raw Alpha/Beta data orientations are unprocessed and only have meaning relative to the oriented core's orientation. Alpha/Beta input orientations will be automatically converted to the equivalent Reporting Orientation when viewed in the Pole Data Grid and in other analysis options.

Traverse Format

The Traverse Format for a Linear Borehole Oriented Core Traverse requires three values:

• Orient 1
• Orient 2
• Orient 3

See the Borehole Oriented Core topic for the definitions of Orient 1, Orient 2, and Orient 3.