- n. Plural form of schist.
“The geology of the ecoregion is characterized by Precambrian metamorphic rocks such as schists, amphibolites, quartzites, and gneiss.”
“Whilst the country to the north-east of the lakes is mostly composed of rocks, of great age, geologically, such as schists, quartzites, and old dolerytic rocks, with newer but still ancient trachytes, that to the south-west of them is formed principally of recent volcanic tufas and lavas, the irruption of which has not yet ceased.”
“Weathering also left a gigantic sheet of hard iron-quartzite jutting out of the eroded piedmont schists and granite gneiss.”
“A large zone of schists runs south-west to north-east across the park, dissected in places by tributaries of the watercourses which run parallel to it.”
“A first cursory examination of the material was enough to show that the specimens from Mount Betty and Scott's Nunatak consist exclusively of granitic rocks and crystalline schists.”
“The schistose rocks from Scott's Nunatak are streaked, and, in part, very fine-grained quartz diorite schists.”
“Mica schists do not occur among the specimens from this mountain.”
“According to the investigations of these expeditions, South Victoria Land consists of a vast, ancient complex of crystalline schists and granitic rocks, large extents of which are covered by a sandstone formation ( "Beacon Sandstone," Ferrar), on the whole horizontally bedded, which is at least 1,500 feet thick, and in which Shackleton found seams of coal and fossil wood (a coniferous tree).”
“It is, therefore, tolerably certain that the underlying older formation of gneisses, crystalline schists and granites, etc., is of Archæan age, and belongs to the foundation rocks.”
“The Park consists of a lateritic peneplain, with rock outcrops of quartz, schists and gneisses.”
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