Arkansas Joints in Turbidites Interpreted

The two dominant joint sets, traced in red and yellow, are roughly at 90 degrees to each other, a common joint set pairing. Note that the red set joints tend to be longer, and while there are T junctions where red joints terminate against yellow joints, mostly yellow joint traces terminate against red. This leads to the red joint set being considered the longitudinal set and the yellow the cross joint set/ The significance of this geometry will be discussed later in the course (but there is no harm in trying to guess). There is a hint of third joint set (traced in green here), and up to 4 joint sets is not uncommon in an area. These joints produce a fracture permeability. All else being equal in what direction might the water flow through this network faster and why?

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