EN-US style="FONT-SIZE: 14pt; COLOR: black; mso-font-kerning: 18.0pt; mso-bidi-font-weight: bold">e="Times New Roman">Material Sources of the Upper Triassic Langjiexue Group in espace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />e w:st="on">Rinbung, egion w:st="on">Tibetegion>e> espace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
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摘要

e="MARGIN: 0cm 0cm 0pt; mso-pagination: widow-orphan; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto">e="FONT-SIZE: 14pt; mso-font-kerning: 0pt">e="Times New Roman">49 sandstone samples from the Upper Triassic Langjiexue Group in espace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />e w:st="on">Rinbung, egion w:st="on">Tibetegion>e> are characterized by low degree of sorting and psephicity and slight metamorphism. Study by the use of Gazzi-Dickinson method and e w:st="on">Dickinsone> diagram indicates that material of the Upper Triassic Langjiexue Group was derived from recycling orogenic zone and mixed region.espace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

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