已收录 268921 条政策
 政策提纲
  • 暂无提纲
Deposiotional systems of the permian Vryheid formation highveld coalfield, South Africa: their relationship to coal seam occurence and distribution
[摘要] The Permo-Carboniferous Dwyka Group and Vryheid Formation of the Karoo. Sequence in the Highveld Coalfield are analysed to determine the depositional systems operative during sedimentation. The investigation involves the processing of 629borehole cores and logs in an area of 860km2.[Abbreviated Abstract. Open document to view full version]
[发布日期]  [发布机构] University of the Witwatersrand
[效力级别]  [学科分类] 
[关键词]  [时效性] 
   浏览次数:3      统一登录查看全文      激活码登录查看全文