The Pushtashan suprasubduction zone assemblage of volcanic rocks, gabbros, norites and peridotites occurs in the Zagros suture zone, Kurdistan region, northeastern Iraq. Volcanic rocks are dominant in the assemblage a...The Pushtashan suprasubduction zone assemblage of volcanic rocks, gabbros, norites and peridotites occurs in the Zagros suture zone, Kurdistan region, northeastern Iraq. Volcanic rocks are dominant in the assemblage and consist mainly of basalt and basaltic andesite flows with interlayered red shale and limestone horizons. Earlier lavas tend to be MORB-like, whereas later lavas display island arc tholeiite to boninitic geochemical characteristics. Tholeiitic gabbros intrude the norites and display fractionation trends typical of crystallisation under low-pressure conditions, whereas the norites display calc-alkaline traits, suggesting their source included mantle metasomatised by fluids released from subducted oceanic crust. Enrichment of Rb, Ba, Sr, Th and the presence of negative Nb anomalies indicate generation in a suprasubduction zone setting. Trondhjemite and granodiorite intrusions are present in the volcanic rocks, gabbros and norites. SHRIMP U-Pb dating of magmatic zircons from a granodiorite yields a mean^(206)Pb/^(238)U age of 96.0 ±2.0 Ma(Cenomanian). The initial ε_(Hf) value for the zircons show a narrow range from +12.8 to+15.6, with a weighted mean of + 13.90±0.96. This initial value is within error of model depleted mantle at 96 Ma or slightly below that, in the field of arc rocks with minimal contamination by older continental crust. The compositional bimodality of the Pushtashan suprasubduction sequence suggests seafloor spreading during the initiation of subduction, with a lava stratigraphy from earlyerupted MORB transitioning into calc-alkaline lavas and finally by 96 Ma intrusion of granodioritic and trondhjemitic bodies with juvenile crustal isotopic signatures. The results confirm another Cretaceous arc remnant preserved as an allochthon within the Iraqi segment of the Cenozoic Zagros suture zone. Implications for the closure of Neo-Tethys are discussed.展开更多
This paper sheds light on the Iraqi personality in light of writings of the Iraqi eminent sociologist Dr. Ali Al-Wardi and gives a critical review to his main findings and hypotheses. Al-Wardi was the main person who ...This paper sheds light on the Iraqi personality in light of writings of the Iraqi eminent sociologist Dr. Ali Al-Wardi and gives a critical review to his main findings and hypotheses. Al-Wardi was the main person who established the first department of sociology in Iraq and the spiritual father or the real father of sociology in the country. He wrote prestigious works about the Iraqi society including some hypotheses focusing on the Iraqi personality, such as the dual personality and social dissonance. These findings and hypotheses are not above criticism of course. The method we depend on here is the content analysis methodology. The paper consists of seven parts; part one is the introduction which includes a short glimpse on the subject and A1-Wardi＇s methodology. Part two deals with Al-Wardi and studying Iraqi personality. Part three, discusses the dual personality, and part four, the social dissonance. Part five, exposures tackling the problem where Al-Wardi suggests some points. Part six deals with the discussion. Finally, there is a conclusion under the part seven.展开更多
Objectives： To review the calendar, mortality and morbidity of Iraq-Iran chemical war among Iranians based on researchers＇ reports. Methods： We used national and international databanks such as PubMed, ISI, Scopus...Objectives： To review the calendar, mortality and morbidity of Iraq-Iran chemical war among Iranians based on researchers＇ reports. Methods： We used national and international databanks such as PubMed, ISI, Scopus, Irandoc and Iranmedex and studied 350 articles related to chemical agents and their effects on different organs. The main criteria for qualification of articles were relevancy orientation and being published in approved medical journals. Results： The Iraqi army invaded to west and southwest Iran using chemical weapons such as nerve agents （NAs） and sulfur mustard （SM）. Most victims were civilians including women and children. These attacks had imposed more than 150 types of diseases and complications on Iranians and the frequency of death was 2%-3%. Most reports were about respiratory problems and a few were in the domain of socio-economic damages Conclusion： At present, 25 years after me end of war, the victims are faced with different complications induced by chemical agents and it is estimated that they will be continuously troubled by these problems in future.展开更多
基金supported by University of Kirkukpartially supported by the GeoQuEST Research Centre(University of Wollongong)
文摘The Pushtashan suprasubduction zone assemblage of volcanic rocks, gabbros, norites and peridotites occurs in the Zagros suture zone, Kurdistan region, northeastern Iraq. Volcanic rocks are dominant in the assemblage and consist mainly of basalt and basaltic andesite flows with interlayered red shale and limestone horizons. Earlier lavas tend to be MORB-like, whereas later lavas display island arc tholeiite to boninitic geochemical characteristics. Tholeiitic gabbros intrude the norites and display fractionation trends typical of crystallisation under low-pressure conditions, whereas the norites display calc-alkaline traits, suggesting their source included mantle metasomatised by fluids released from subducted oceanic crust. Enrichment of Rb, Ba, Sr, Th and the presence of negative Nb anomalies indicate generation in a suprasubduction zone setting. Trondhjemite and granodiorite intrusions are present in the volcanic rocks, gabbros and norites. SHRIMP U-Pb dating of magmatic zircons from a granodiorite yields a mean^(206)Pb/^(238)U age of 96.0 ±2.0 Ma(Cenomanian). The initial ε_(Hf) value for the zircons show a narrow range from +12.8 to+15.6, with a weighted mean of + 13.90±0.96. This initial value is within error of model depleted mantle at 96 Ma or slightly below that, in the field of arc rocks with minimal contamination by older continental crust. The compositional bimodality of the Pushtashan suprasubduction sequence suggests seafloor spreading during the initiation of subduction, with a lava stratigraphy from earlyerupted MORB transitioning into calc-alkaline lavas and finally by 96 Ma intrusion of granodioritic and trondhjemitic bodies with juvenile crustal isotopic signatures. The results confirm another Cretaceous arc remnant preserved as an allochthon within the Iraqi segment of the Cenozoic Zagros suture zone. Implications for the closure of Neo-Tethys are discussed.
文摘This paper sheds light on the Iraqi personality in light of writings of the Iraqi eminent sociologist Dr. Ali Al-Wardi and gives a critical review to his main findings and hypotheses. Al-Wardi was the main person who established the first department of sociology in Iraq and the spiritual father or the real father of sociology in the country. He wrote prestigious works about the Iraqi society including some hypotheses focusing on the Iraqi personality, such as the dual personality and social dissonance. These findings and hypotheses are not above criticism of course. The method we depend on here is the content analysis methodology. The paper consists of seven parts; part one is the introduction which includes a short glimpse on the subject and A1-Wardi＇s methodology. Part two deals with Al-Wardi and studying Iraqi personality. Part three, discusses the dual personality, and part four, the social dissonance. Part five, exposures tackling the problem where Al-Wardi suggests some points. Part six deals with the discussion. Finally, there is a conclusion under the part seven.
文摘Objectives： To review the calendar, mortality and morbidity of Iraq-Iran chemical war among Iranians based on researchers＇ reports. Methods： We used national and international databanks such as PubMed, ISI, Scopus, Irandoc and Iranmedex and studied 350 articles related to chemical agents and their effects on different organs. The main criteria for qualification of articles were relevancy orientation and being published in approved medical journals. Results： The Iraqi army invaded to west and southwest Iran using chemical weapons such as nerve agents （NAs） and sulfur mustard （SM）. Most victims were civilians including women and children. These attacks had imposed more than 150 types of diseases and complications on Iranians and the frequency of death was 2%-3%. Most reports were about respiratory problems and a few were in the domain of socio-economic damages Conclusion： At present, 25 years after me end of war, the victims are faced with different complications induced by chemical agents and it is estimated that they will be continuously troubled by these problems in future.
