Un manuscrito poético desconocido en la Biblioteca de la Hispanic Society of America

The article tries to describe a singular poetic manuscript, kept uncatalogued in the Library of Hispanic Society of America, remained unknown to this date. It is a very varied collection of poems: among them stands out a group of sung love verses and some burlesque and satirical compositions about the political situation of Spain at the end of the kingdom of Carlos II and the beginning of the Bourbon dinasty.El artículo pretende describir un manuscrito poético singular, conservado sin catalogación en la Biblioteca de la Hispanic Society of America y desconocido hasta hace muy poco tiempo. Se trata de una colección muy variada de poemas entre los que destaca un conjunto de coplas musicadas, de naturaleza amorosa, y algunas composiciones satírico burlescas relativas a la situación política de finales del reinado de Carlos II y comienzos de la dinastía borbónica

Un manuscrito poético desconocido en la Biblioteca de la Hispanic Society of America

The article tries to describe a singular poetic manuscript, kept uncatalogued in the Library of Hispanic Society of America, remained unknown to this date. It is a very varied collection of poems: among them stands out a group of sung love verses and some burlesque and satirical compositions about the political situation of Spain at the end of the kingdom of Carlos II and the beginning of the Bourbon dinasty.El artículo pretende describir un manuscrito poético singular, conservado sin catalogación en la Biblioteca de la Hispanic Society of America y desconocido hasta hace muy poco tiempo. Se trata de una colección muy variada de poemas entre los que destaca un conjunto de coplas musicadas, de naturaleza amorosa, y algunas composiciones satírico burlescas relativas a la situación política de finales del reinado de Carlos II y comienzos de la dinastía borbónica

Stable istotope geochemistry of the carboniferous Zn-Pb-Cu sediment-hosted sulfide deposits, northeastern Spain

Carboniferous sedimentary rocks in the southwestern Catalonian Coastal Ranges contain stratiform (Zn, Pb, Cu) sulfide deposits. Stable isotope compositions of sulfur, oxygen, and hydrogen were studied in five localities in order to establish the source of hydrothermal fluids and the influence of metamorphism on these deposits. Sulfur isotopes were analyzed in pyrrhotite, pyrite, sphalerite, chalcopyrite, and galena. The δ34S(CDT) values lie mostly between -1.0 and +7.0‰ (average +4.4‰). Except for pyrrhotite-pyrite pairs, all the sulfide minerals show isotopic disequilibrium. δ34S values suggest that sulfur was derived by thermochemical reduction of seawater sulfate in a deep-circulating convective system. Fluid inclusions were studied in quartz crystals from the sediment-hosted stratiform occurrences. They are two-phase (L-V), with salinity between 1.1 and 18.0 wt% NaCl eq., and homogenization temperatures mainly in the range of 220-260°C. Oxygen and hydrogen isotopes were analyzed in chlorite crystals from four ore-bearing beds. δD(V-SMOW) values in chlorite range from -63 to -33‰, whereas δ18O values lie between +2.7 and +6.8‰. δ18O(V-SMOW) values in quartz range between +8.4 and +10.7‰. Most of the calculated oxygen and hydrogen isotope compositions of ore-forming fluids plot close to the isotopic composition of seawater. Therefore, the ore-forming fluid must have been mainly seawater that interacted with sedimentary rocks during convective circulation within a basin. This process took place in a subsiding Carboniferous basin divided into sedimentary highs and depressions by synsedimentary normal faults, which acted as permeable areas that favored fluid circulation