This suite consists of metamorphosed siltstone, wacke, conglomerate, arkose, and minor rhyolite.
2.
The rocks are wacke and mudstone in a submarine fan with currents flowing to the north.
3.
Marble Island is composed of a type of sedimentary rock called wacke, laced with quartzite.
4.
Six sandstone names are possible using the descriptors for grain composition ( quartz-, feldspathic-, and lithic-) and the amount of matrix ( wacke or arenite ).
5.
The inlier at Cross Fell comprises just the Catterpallot Formation, a wacke sandstone which is the rough equivalent of the Watch Hill Formation, itself a wacke sandstone as is the Loweswater Formation.
6.
The inlier at Cross Fell comprises just the Catterpallot Formation, a wacke sandstone which is the rough equivalent of the Watch Hill Formation, itself a wacke sandstone as is the Loweswater Formation.
7.
For example, a quartz arenite would be composed of mostly ( > 90 % ) quartz grains and have little or no clayey matrix between the grains, a lithic wacke would have abundant lithic grains and abundant muddy matrix, etc.
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