The Banfora’s birimian greenstones belt is located in the western part of Burkina Faso (west Africa). Recent petrographic and lithogeochemical studies have highlighted plutons intruding the metasedimentary and metavo...The Banfora’s birimian greenstones belt is located in the western part of Burkina Faso (west Africa). Recent petrographic and lithogeochemical studies have highlighted plutons intruding the metasedimentary and metavolcanic series. These plutonic rocks are composed of leucogranites belonging to the so-called Ferkessedougou’s or Ferké’s batholith, granites, granodiorites, monzodiorites and quartz monzonites. From the lithogeochemical studies, these plutonic rocks have a calc-alkaline and peraluminous character. The rare earth elements spectra of the Ferké’s leucogranites let distinguished two sub-facies. One of the sub-facies is composed of quartz monzonite to granite, while the other is granitic sensu stricto. However, all these plutonic rocks were emplaced in a geodynamic context of subduction followed by collision.展开更多
Petrographic and geochemical studies of syenite-looking Ayetoro and Sasaro plutons within Igarra Schist Belt were carried out in order to classify them and determine their tectonic setting and mineralization potential...Petrographic and geochemical studies of syenite-looking Ayetoro and Sasaro plutons within Igarra Schist Belt were carried out in order to classify them and determine their tectonic setting and mineralization potential. Petrographic study and geochemical classification revealed that while Ayetoro boss is microgranite constituting an aggregate of medium grained muscovite, quartz and biotite minerals, Sasaro stock is micromonzonite made up of medium grained albite, orthoclase, biotite, hornblende and pyroxene. Geotectonic setting showed the boss and stock are orogenic, probably derived from the same upper mantle magma as Igarra batholith that got contaminated by crustal materials responsible for their difference in lithology. Their mineralization potential showed that the massive Ayetoro microgranite with no appreciable trace-element contents cannot serve as host of any metallic deposit, and should be suitable for industrial applications. Whereas, the silicified, highly sheared Sasaro monzonite, with elevated level of some trace elements contents as Ag, Au and Cu, could harbor Ag-Au-Cu deposit.展开更多
目的探索“一带一路”倡议背景下,针对MBBS(Bachelor of Medicine and Bachelor of Surgery,MBBS)留学生“急诊医学”课程的教学改革策略与实施成效。方法本研究采用文献综述和教育研究成果分析的方法,审视当前急诊医学教学面临的主要挑...目的探索“一带一路”倡议背景下,针对MBBS(Bachelor of Medicine and Bachelor of Surgery,MBBS)留学生“急诊医学”课程的教学改革策略与实施成效。方法本研究采用文献综述和教育研究成果分析的方法,审视当前急诊医学教学面临的主要挑战,包括语言障碍、教学方法不足等问题。根据安徽医科大学的具体情况和国际学生的特定需求,提出了一系列创新的改革措施。结果研究揭示了当前急诊医学教学存在的问题,特别是在语言沟通和教学方法方面的挑战。还提出了包括现代技术应用、互动式教学方法推广等一系列具体且具有针对性的改革措施,旨在提高教学效率和培养学生的实际操作能力。结论本次教学改革的实施有效完善了课程设置和教学资源,创新了教学方法,为MBBS留学生提供了更高质量的国际化急诊医学教育体验。促进了医学教育领域的国际合作与交流,为“一带一路”共建国家构建健康共同体提供了有力支持。展开更多
文摘The Banfora’s birimian greenstones belt is located in the western part of Burkina Faso (west Africa). Recent petrographic and lithogeochemical studies have highlighted plutons intruding the metasedimentary and metavolcanic series. These plutonic rocks are composed of leucogranites belonging to the so-called Ferkessedougou’s or Ferké’s batholith, granites, granodiorites, monzodiorites and quartz monzonites. From the lithogeochemical studies, these plutonic rocks have a calc-alkaline and peraluminous character. The rare earth elements spectra of the Ferké’s leucogranites let distinguished two sub-facies. One of the sub-facies is composed of quartz monzonite to granite, while the other is granitic sensu stricto. However, all these plutonic rocks were emplaced in a geodynamic context of subduction followed by collision.
文摘Petrographic and geochemical studies of syenite-looking Ayetoro and Sasaro plutons within Igarra Schist Belt were carried out in order to classify them and determine their tectonic setting and mineralization potential. Petrographic study and geochemical classification revealed that while Ayetoro boss is microgranite constituting an aggregate of medium grained muscovite, quartz and biotite minerals, Sasaro stock is micromonzonite made up of medium grained albite, orthoclase, biotite, hornblende and pyroxene. Geotectonic setting showed the boss and stock are orogenic, probably derived from the same upper mantle magma as Igarra batholith that got contaminated by crustal materials responsible for their difference in lithology. Their mineralization potential showed that the massive Ayetoro microgranite with no appreciable trace-element contents cannot serve as host of any metallic deposit, and should be suitable for industrial applications. Whereas, the silicified, highly sheared Sasaro monzonite, with elevated level of some trace elements contents as Ag, Au and Cu, could harbor Ag-Au-Cu deposit.
文摘目的探索“一带一路”倡议背景下,针对MBBS(Bachelor of Medicine and Bachelor of Surgery,MBBS)留学生“急诊医学”课程的教学改革策略与实施成效。方法本研究采用文献综述和教育研究成果分析的方法,审视当前急诊医学教学面临的主要挑战,包括语言障碍、教学方法不足等问题。根据安徽医科大学的具体情况和国际学生的特定需求,提出了一系列创新的改革措施。结果研究揭示了当前急诊医学教学存在的问题,特别是在语言沟通和教学方法方面的挑战。还提出了包括现代技术应用、互动式教学方法推广等一系列具体且具有针对性的改革措施,旨在提高教学效率和培养学生的实际操作能力。结论本次教学改革的实施有效完善了课程设置和教学资源,创新了教学方法,为MBBS留学生提供了更高质量的国际化急诊医学教育体验。促进了医学教育领域的国际合作与交流,为“一带一路”共建国家构建健康共同体提供了有力支持。
