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Sample P101A, from the Ravensthroat Formation in northwest Canada, is a laminated peloidal cap dolostone. The graded and reverse-graded peloids exhibit low-angle cross laminations easily visible to the naked eye. Peloid deposition reflects conditions in which calcium carbonate precipitation is occuring rapidly and has ...
East Greenland #22 is a finely laminated buff yellow cherty carbonate mudstone (dolostone). This sample was taken from the unit that directly overlies the Storeelv formation glacial deposits. The sharpness of the contact between the Storeelv glacial succession and the overlying cap carbonate implies a rapid transition ...