学科分类
/ 1
1 个结果
  • 简介:<正>TheDevonianhydrotyermalsedimentationandmineralizationarewidespreadandtypicalinMaizi、KelangandChonghuerbasinsofsouthernAltaymargin,andhavetheirrespectivesignsinoccurrence,fabricandgeochemistry.Hydr)thermalsedimentaryrocksmainlyoccurintheintermittentperiodbetweenvolcanicsub(?)ycles.Theyarethin-midium-bedded,lenticularandbasicallyuniformtotheoccurrencesoftheoverlyingandunderlyingstrata.Theclassificationofthehydrothermalsedimentaryrocksisproposedbasedonthemineralcompositions.Thedetaileddescriptionsaregiventothefivetypesofhydrothermalsedimentaryrocks:silicates,feldspar-richrocks,

  • 标签: