Comments on: Measuring Structures in Oriented Core

By: Stereo Net Validation and Interpretation of Structural Measurements « Roger Marjoribanks Roger Marjoribanks

Tue, 04 Jul 2023 07:20:28 +0000

[…] most geologists today record the attitude of planes in core by the Internal Core Angles Method (see HERE). This technique involves measuring two angles called alpha (α) and beta (β) which are then […]

By: The Three point problem: Calculating strike and dip from multiple DD Holes « Roger Marjoribanks Roger Marjoribanks

Fri, 09 Jul 2021 05:54:59 +0000

[…] None of the core is oriented, but the average alpha (α) angle (for definition of alpha angle see here) between the veins and the core axis has been measured in each hole: it is 10° in Hole 1; 56° in […]

By: Five rules for use of alpha-beta measurements in drill core « Roger Marjoribanks Roger Marjoribanks

Sat, 03 Jul 2021 06:03:01 +0000

[…] detail in an earlier blog post and discussed the advantages and disadvantages of the two methods (Measuring structures in oriented core, Oct 19 2013). This post provides some further discussion on the internal core angles method and […]