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What is the effect of density on the friction angle of sands?
The friction angle of the mixture increases the relative density.
What is a Phi angle?
The Phi angle is usually the second unknown angle after theta. It is typically used in the argument of a complex number, the phase of a wave in signal processing, in spherical coordinates, as one of the dihedral angles in the backbones of proteins in a Ramachandran plot, and as the internal or effective angle of friction.
What is the angle of internal friction for clay?
Till is a term describing an unsorted sediment of varying composition. It consists of several different grain sizes and can contain different amounts of clay. As the angle of internal friction is based on the cohesion and grain size of the material the answer is that it varies depending on the composition of the specific till.
Do shale and mudstone have the same appearance?
Very similar, yes, but without the lamination that shale exhibits.
How do you make oil out of shale?
You don't make oil from shale, you extract oil from shale. The shale acts like a sponge, sometimes the shale is so porous that the oil can be squeezed or sucked out, otherwise it can be extracted by crushing and heating the shale.
