21. These formations are part of the larger group of Kinoj�vis in Superior Craton . 22. East Antarctica is a stable craton of Precambrian age. 23. There have been prior episodes of kimberlitic volcanism in the craton , however. 24. Buick knew the Pilbara craton was ancient terrain. 25. Birger found these microscopic filaments of life in the Pilbara Craton of northwestern Australia. 26. A miogeosyncline is the nonvolcanic portion of an orthogeosyncline, located adjacent a craton . 27. A rock unconformities of interregional scope, such as in the division of cratons . 28. To the west is the Archean Superior Craton . 29. The compressional phase that followed led to eastward subduction of the western Marwar craton . 30. Most of these reconstructions are based on the correlation of the orogens on different cratons .
