Commonly seen in Mesozoic coal fields of Diwa type in Hunan and Jiangxi are basic, intermediate and acidic intrusive and volcanic rocks. The sequence of magmatism is from acidic to basic. The rocks show a tendency to ...Commonly seen in Mesozoic coal fields of Diwa type in Hunan and Jiangxi are basic, intermediate and acidic intrusive and volcanic rocks. The sequence of magmatism is from acidic to basic. The rocks show a tendency to become younger in age from west to east. Biotite granite porphyry-quartz diorite porphyrite, diorite porphyrite-diabase, diabase-porphyrite and spilite are the main rock types. These rocks are geochemically eharacterized by an evolutionary sequence from acidic to basic and by the enrichment in alkaline elements (except for biotite granite porphyry which has undergone intense alteration). In the acidic rocks K2O> Na2O whereas in the basic rocks K2O < Na2O. All the rocks are rich in non-ferrous metals and rare dements. The majority of the magmatic rocks were emplaced during the most intensive pariod of Diwa development. The rocks generally run parallel with the strike of coal basins. They were emplaced mostly along the layers or cut across coal seams. The above data on tectono-magmatic activity in coal fields of Diwa type lend great support to Prof. Chert Guoda's proposal that the history of crustal evolution is divided into three major stages -- geosyncline, platform snd Diwa.展开更多
随着成果导向教育(Outcome based education,OBE)被工程教育专业认证完全采纳和推广、课程思政建设的不断加强,高等院校教育教学改革不断深入。文章结合矿物加工专业毕业生的毕业要求,对“矿物岩石学”课程的教学内容、教学方式和思政...随着成果导向教育(Outcome based education,OBE)被工程教育专业认证完全采纳和推广、课程思政建设的不断加强,高等院校教育教学改革不断深入。文章结合矿物加工专业毕业生的毕业要求,对“矿物岩石学”课程的教学内容、教学方式和思政教育进行了改革实践,合理增减教学内容,以更适合矿物加工专业学生对后续课程的理解和学习;采用导入式教学法和思维导图法,改善课堂氛围,提高学生的学习积极性以及强化其构建知识体系;深入挖掘思政元素,潜移默化地对学生进行思想政治教育,全方面助力学生素质的提高。展开更多
文摘Commonly seen in Mesozoic coal fields of Diwa type in Hunan and Jiangxi are basic, intermediate and acidic intrusive and volcanic rocks. The sequence of magmatism is from acidic to basic. The rocks show a tendency to become younger in age from west to east. Biotite granite porphyry-quartz diorite porphyrite, diorite porphyrite-diabase, diabase-porphyrite and spilite are the main rock types. These rocks are geochemically eharacterized by an evolutionary sequence from acidic to basic and by the enrichment in alkaline elements (except for biotite granite porphyry which has undergone intense alteration). In the acidic rocks K2O> Na2O whereas in the basic rocks K2O < Na2O. All the rocks are rich in non-ferrous metals and rare dements. The majority of the magmatic rocks were emplaced during the most intensive pariod of Diwa development. The rocks generally run parallel with the strike of coal basins. They were emplaced mostly along the layers or cut across coal seams. The above data on tectono-magmatic activity in coal fields of Diwa type lend great support to Prof. Chert Guoda's proposal that the history of crustal evolution is divided into three major stages -- geosyncline, platform snd Diwa.
文摘随着成果导向教育(Outcome based education,OBE)被工程教育专业认证完全采纳和推广、课程思政建设的不断加强,高等院校教育教学改革不断深入。文章结合矿物加工专业毕业生的毕业要求,对“矿物岩石学”课程的教学内容、教学方式和思政教育进行了改革实践,合理增减教学内容,以更适合矿物加工专业学生对后续课程的理解和学习;采用导入式教学法和思维导图法,改善课堂氛围,提高学生的学习积极性以及强化其构建知识体系;深入挖掘思政元素,潜移默化地对学生进行思想政治教育,全方面助力学生素质的提高。
