The results obtained in this work evince that the metallic mineral deposits located in the northern region of the Chilean-Pampean flat slab(in northern Chile and north-western Argentina),at approximately 27°30’S...The results obtained in this work evince that the metallic mineral deposits located in the northern region of the Chilean-Pampean flat slab(in northern Chile and north-western Argentina),at approximately 27°30’S,would be related to the subduction of the Copiapo aseismic ridge.The analysis of the gravity anomalies and vertical gravity gradient allows inferring a deflection and truncation of the main trend of the Andean structures at the extrapolated zone of the Copiapo ridge beneath South America.Thus,the general NNE-trend of the Andean structures are rotated locally to an ENE-strike within the area of the Ojos del Salado-San Buena Ventura lineament.We explain that this anomalous behavior of the gravity derived anomalies is related to the deformational effects imprinted by the ridge subduction.Regions with a low subduction angle(<30°to horizontal)are related to large mineralization due to fluids released by dehydration of the subducting crust.In addition,a higher degree of mantle melting could be produced by a thicker oceanic crust.Therefore,we interpret that the processes associated to the subduction of the Copiapo aseismic ridge(emplaced on a thickened oceanic crust due to a local compensation of the seamounts)are the cause of formation and emplacement of big metallic mineral deposits in this region of Chile and Argentina.展开更多
《大眼睛的女人》(Mujeres de ojos grandes,1991)是一部优秀的女性主义文学作品,其所展现的男权偶像崩塌及女性意识崛起充分体现了该作品的社会价值。作品对于旧的男权偶像崩塌进行了全面揭示,不仅描述了世俗男权偶像的崩塌,也形象化...《大眼睛的女人》(Mujeres de ojos grandes,1991)是一部优秀的女性主义文学作品,其所展现的男权偶像崩塌及女性意识崛起充分体现了该作品的社会价值。作品对于旧的男权偶像崩塌进行了全面揭示,不仅描述了世俗男权偶像的崩塌,也形象化地写出了弱化的男权偶像的崩塌,而且还重塑了新的"男权偶像"。在坍塌的男权世界中,小说浓墨重彩塑造的这些动人的女性形象,在爱情与婚姻、家庭与社会等各个方面尽力争取属于自己的权利,从沉寂到呐喊、从青涩到成熟、从边缘到中心,充分体现了女性意识的崛起。展开更多
基金the National University of San Juan for their financial support
文摘The results obtained in this work evince that the metallic mineral deposits located in the northern region of the Chilean-Pampean flat slab(in northern Chile and north-western Argentina),at approximately 27°30’S,would be related to the subduction of the Copiapo aseismic ridge.The analysis of the gravity anomalies and vertical gravity gradient allows inferring a deflection and truncation of the main trend of the Andean structures at the extrapolated zone of the Copiapo ridge beneath South America.Thus,the general NNE-trend of the Andean structures are rotated locally to an ENE-strike within the area of the Ojos del Salado-San Buena Ventura lineament.We explain that this anomalous behavior of the gravity derived anomalies is related to the deformational effects imprinted by the ridge subduction.Regions with a low subduction angle(<30°to horizontal)are related to large mineralization due to fluids released by dehydration of the subducting crust.In addition,a higher degree of mantle melting could be produced by a thicker oceanic crust.Therefore,we interpret that the processes associated to the subduction of the Copiapo aseismic ridge(emplaced on a thickened oceanic crust due to a local compensation of the seamounts)are the cause of formation and emplacement of big metallic mineral deposits in this region of Chile and Argentina.
文摘《大眼睛的女人》(Mujeres de ojos grandes,1991)是一部优秀的女性主义文学作品,其所展现的男权偶像崩塌及女性意识崛起充分体现了该作品的社会价值。作品对于旧的男权偶像崩塌进行了全面揭示,不仅描述了世俗男权偶像的崩塌,也形象化地写出了弱化的男权偶像的崩塌,而且还重塑了新的"男权偶像"。在坍塌的男权世界中,小说浓墨重彩塑造的这些动人的女性形象,在爱情与婚姻、家庭与社会等各个方面尽力争取属于自己的权利,从沉寂到呐喊、从青涩到成熟、从边缘到中心,充分体现了女性意识的崛起。
