| Geochemistry and genesis of magmatic PGE-bearing Cu-Ni sulphide deposit in Wadi Bayhan，southeastern Yemen |
| |
| 引用本文： | Moteea A． Al-Shameery.Geochemistry and genesis of magmatic PGE-bearing Cu-Ni sulphide deposit in Wadi Bayhan，southeastern Yemen[J].世界地质(英文版),2011,14(1):15-20. |
| |
| 作者姓名： | Moteea A． Al-Shameery |
| |
| 作者单位： | 1． College of Earth Sciences，Jilin University，Changchun 130061，China; 2． Geological Survey and Mineral Resources Board，Sana'a，Yemen |
| |
| 摘 要： | The Wadi Bayhan mafic-ultramafic intrusions associated with magmatic PGE-bearing Cu-Ni sulphide deposit are located in the south margin of the Arabian-Nubian Shield,SW Yemen.The intrusions consist of dunite,olivine-pyroxenite,lherzolite,hornblendite,gabbro and gabbronorite.The dunite and lherzolite are the main host rock for the Cu-Ni ores.The new data of the chemical compositions of the rocks have SiO2(50%-53.6%),Al2O3(0-32%) and MgO(4%-28%),and relatively low TiO2(0-3.2%) and K2O+Na2O(0.04%-5.2%).The geochemical characteristics indicate that the parental magma is high-magnesium tholeiitic.Sulfur had reached saturation and immiscible sulfides droplets segregated from silicate magmas before their emplacement.
|
| 关 键 词： | magmatic sulphide Wadi Bayhan mafic-ultramafic intrusion |
Geochemistry and genesis of magmatic PGE-bearing Cu-Ni sulphide deposit in Wadi Bayhan,southeastern Yemen |
| |
| Moteea A． Al-Shameery.Geochemistry and genesis of magmatic PGE-bearing Cu-Ni sulphide deposit in Wadi Bayhan,southeastern Yemen[J].Global Geology,2011,14(1):15-20. |
| |
| Authors: | Moteea A． Al-Shameery |
| |
| Institution: | Moteea A.Al-Shameery1,2,SUN Fengyue1,M.Alqadasi2 and M.Mattash2 1.College of Earth Sciences,Jilin University,Changchun 130061,China;2.Geological Survey and Mineral Resources Board,Sana’a,Yemen |
| |
| Abstract: | The Wadi Bayhan mafic-ultramafic intrusions associated with magmatic PGE-bearing Cu-Ni sulphide deposit are located in the south margin of the Arabian-Nubian Shield，SW Yemen． The intrusions consist of dunite， olivine-pyroxenite，lherzolite，hornblendite，gabbro and gabbronorite． The dunite and lherzolite are the main host rock for the Cu-Ni ores． The new data of the chemical compositions of the rocks have SiO2 ( 50%- 53. 6%) ，Al2O3 ( 0-32%) and MgO ( 4%-28%) ，and relatively low TiO2 ( 0-3. 2%) and K2 O + Na2O ( 0. 04% － 5. 2%) ． The geochemical characteristics indicate that the parental magma is high-magnesium tholeiitic． Sulfur had reached saturation and immiscible sulfides droplets segregated from silicate magmas before their emplacement． |
| |
| Keywords: | magmatic sulphide Wadi Bayhan mafic-ultramafic intrusion |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《世界地质(英文版)》浏览原始摘要信息 |
| 点击此处可从《世界地质(英文版)》下载免费的PDF全文 |
