Lexicon of Antarctic Stratigraphic Names Introduced by Members of United States Expeditions (1972) / Chapter Skim
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Alexander Is land sed imentary rocks 1 . F irs t publ ished use Knowles , P .
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3 . Type section a.
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Bastion Sequence 1 . First published use Mirsky , A
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Beacon Sandstone 1 . First published use Hamilton , w.
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early Mesozoic ( ?
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3 . Type section a .
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c . Li thology Red, al though green l ocal ly , poor ly bedded and sor ted , cobble s of s l ate , sand s tone and ve in quar tz from Patuxen t Formation , some l ime s tone and fe l s ic volcanic c las t s .
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c . Lithology Blue to green-gray mudstone matrix , 72% sed imentary pebbles , 21% igneous , 7% metamorphic , subangular , some faceted and s triated ; dark green-gray s ilts tone is the dominant pebble type .
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