Petrography and geochemistry of late- to post-Variscan vaugnerite series rocks and calc-alkaline lamprophyres within a cordierite-bearing monzogranite (Sierra Bermeja Pluton, southern Iberian Massif)

The Sierra Bermeja Pluton (southern Central Iberian Zone, Iberian Massif) is a late-Variscan intrusive constituted by cordierite-bearing peraluminous monzogranites. Detailed field mapping has allowed to disclose the presence of several NE–SW trending longitudinal composite bodies, formed by either aphanitic or phaneritic mesocratic rocks. According to their petrography and geochemistry these rocks are categorized as calc-alkaline lamprophyres and vaugnerite series rocks. Their primary mineralogy is characterized by variable amounts of plagioclase, amphibole, clinopyroxene, biotite, K-feldspar, quartz and apatite. Broadly, they show low SiO2 content (49–56wt.%), and high MgO+FeOt (10–17wt.%), K2O (3–5wt.%), Ba (963–2095ppm), Sr (401–1149ppm) and Cr (87–330ppm) contents. Field scale observations suggest that vaugneritic rocks and lamprophyres would constitute two independent magma pulses. Vaugneritic dioritoids intruded as syn-plutonic dykes, whereas lamprophyres were emplaced after the almost complete consolidation of the host monzogranites. In this way, vaugnerite series rocks would be an evidence for the contemporaneity of crustal- and mantle-melting processes during a late-Variscan stage, while lamprophyres would represent the ending of this stage

The late-Variscan peraluminous Valdepeñas pluton (southern Central Iberian Zone)

The Valdepeñas pluton is the easternmost outcrop of the Cáceres-Valdepeñas magmatic alignment (southern Central Iberian Zone). This massif is constituted by a cordierite-bearing porphyritic monzogranite and may be grouped within the so-called “Serie Mixta” granitoids. The Valdepeñas monzogranite is of magnesian [FeOt/(FeOt+MgO)~0.76], alkali-calcic [(Na2O+K2O)–CaO=7.8–8.5] and peraluminous (A/CNK=1.14–1.20). Multielemental- and REE-normalized patterns are comparable to those of similar rocks in the Nisa- Alburquerque-Los Pedroches magmatic alignment, and slightly differ from those of the Montes de Toledo batholith, both in the southern Central Iberian Zone. The U-Pb zircon age of 303±3Ma is consistent with the late-orogenic character of the intrusion and is in accordance with most of the granitic peraluminous intrusions in the southern Central Iberian Zone.  86Sr/87Sr300Ma ratios (0.707424–0.711253), εNd300Mavalues (-5.53 to -6.68) and whole-rock major and trace element compositions of the studied rocks, suggest that the parental magma of the Valdepeñas monzogranite could derive from a crustal metaigneous source. The U-Pb ages (552–650Ma) of inherited zircon cores found in Valdepeñas monzogranite samples match those often found in Lower Paleozoic metavolcanics and granitic orthogneisses of Central Iberia and, furthermore, point to Upper Neoproterozoic metaigneous basement rocks as possible protoliths at the magma source. Based on the solubility of monazite in peraluminous melts, the estimated emplacement temperature of the studied monzogranite is 742–762ºC. The results obtained in this work would contribute to a better understanding of the origin of the “Serie Mixta” granitoids

Caracterización geoquímica de los depósitos alimentados por fuentes de lava del volcán Las Herrerías (Región Volcánica del Campo de Calatrava, Ciudad Real)

The Las Herrerías volcano (Bolaños de Calatrava, Campo de Calatrava Volcanic Field) is characterized by the great amount and variety of fire-fountain fed deposits. All these deposits are compositionally similar, being constituted by magnesium-rich (MgO = 11.58–4.19%), aluminium-poor (Al₂O₃ = 9.64–10.99%) highly sodic (Na₂O = 2.24–3.81%) melanephelinites, with high contents in rare earth-elements (10x–200x chondrite), particularly in light-rare earth elements with respect to the heavy ones [(La/Lu)N = 32–35]. Contrary to the equivalent melanephelinites of this volcanic field, the relatively low contents in Ni (233–286 ppm), Cr (393–520 ppm) and magnesium number (Mg* = 45–54) indicate that these rocks do not correspond with primary melts. On the other hand, the variable distribution of clinopyroxene in the magma during eruption would be responsible for the slight compositional differences observed in the studied samples. Finally, we argue that these fire fountains were developed in a continental intraplate setting.El volcán Las Herrerías (Bolaños de Calatrava; Región Volcánica del Campo de Calatrava) se caracteriza por una gran cantidad y variedad de depósitos originados a partir de fuentes de lava. Todos estos depósitos son composicionalmente idénticos, estando constituidos por melanefelinitas fuertemente sódicas (Na₂O = 2.24–3.81%), ricas en magnesio (MgO = 11.58–14.19%), pobres en aluminio (Al₂O₃ = 9.64–10.99%) y con elevados contenidos en tierras raras (10x–200x condrito), fundamentalmente más en tierras raras ligeras que en pesadas [(La/Lu)N = 32–35]. Los contenidos en Ni (233–286 ppm), Cr (393–520 ppm) y el número de magnesio (Mg* = 45–54) indican que no son magmas primarios, a diferencia de la mayor parte de las melanefelinitas equivalentes de esta región volcánica. Por otro lado, las ligeras variaciones composicionales mostradas por las muestras estudiadas responderían al efecto de la irregular distribución del clinopiroxeno en el magma durante la erupción. Los datos obtenidos son coherentes con el desarrollo de estas fuentes de lava en un ambiente de intraplaca continental

CARACTERIZACIÓN A IMPACTO BIAXIAL DE BAJA ENERGÍA DE BIOCOMPOSITES. INFLUENCIA DE LA INMERSIÓN EN AGUA DE MAR

En el presente trabajo se ha realizado un estudio del daño progresivo a impacto de dos biocomposites fabricados mediante el proceso de infusión de resina de origen renovable (SuperSap®) reforzada con dos fibras naturales bidireccionales: lino y yute, ambas con un gramaje de 300 g/m2. El estudio se realizó en dos etapas sucesivas: en la primera se sometió a ambos materiales a impacto controlado y en la segunda, tras inmersión en agua de mar, se realizó un segundo test de impacto. Los resultados han puesto de manifiesto una mayor capacidad de disipación de energía en el biocomposite reforzado con lino que se atribuye a un proceso de plastificación por efecto de la inmersión de agua de mar. Por el contrario, el biocomposite de yute presenta menor tolerancia al daño en condiciones de absorción de humedad

Parental Burnout Around the Globe: a 42-Country Study

High levels of stress in the parenting domain can lead to parental burnout, a condition that has severe consequences for both parents and children. It is not yet clear, however, whether parental burnout varies by culture, and if so, why it might do so. In this study, we examined the prevalence of parental burnout in 42 countries (17,409 parents; 71% mothers; M_{age} = 39.20) and showed that the prevalence of parental burnout varies dramatically across countries. Analyses of cultural values revealed that individualistic cultures, in particular, displayed a noticeably higher prevalence and mean level of parental burnout. Indeed, individualism plays a larger role in parental burnout than either economic inequalities across countries, or any other individual and family characteristic examined so far, including the number and age of children and the number of hours spent with them. These results suggest that cultural values in Western countries may put parents under heightened levels of stress

Mineral chemistry dataset of the Carboniferous submarine basaltic volcanism of the Matachel Basin (SW Iberian Massif)

Mineral chemistry characterization by means of Electron Microprobe analysis in 9 basaltic samples are presented. This dataset comprises a total of 501 mineral chemical analysis which correspond to plagioclase (208 analysis), clinopyroxene (202 analysis), amphibole (64 analysis), opaque minerals (18 analysis), and alkali feldspar (9 analysis).THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST OF FILES AND ACCESS THE FILES IN THIS DATASET CLICK ON THE DOI-LINK ABOV

Mineral chemistry dataset of the Carboniferous submarine basaltic volcanism of the Matachel Basin (SW Iberian Massif)

Mineral chemistry characterization by means of Electron Microprobe analysis in 9 basaltic samples are presented. This dataset comprises a total of 501 mineral chemical analysis which correspond to plagioclase (208 analysis), clinopyroxene (202 analysis), amphibole (64 analysis), opaque minerals (18 analysis), and alkali feldspar (9 analysis).THIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE. TO VIEW A LIST OF FILES AND ACCESS THE FILES IN THIS DATASET CLICK ON THE DOI-LINK ABOV

Petrography and geochemistry of late- to post-Variscan vaugnerite series rocks and calc-alkaline lamprophyres within a cordierite-bearing monzogranite (the Sierra Bermeja Pluton, southern Iberian Massif).

The Sierra Bermeja Pluton (southern Central Iberian Zone, Iberian Massif) is a late-Variscan intrusive constituted by cordierite-bearing peraluminous monzogranites. Detailed field mapping has allowed to disclose the presence of several NE–SW trending longitudinal composite bodies, formed by either aphanitic or phaneritic mesocratic rocks. According to their petrography and geochemistry these rocks are categorised as calc-alkaline lamprophyres and vaugnerite series rocks. Their primary mineralogy is characterised by variable amounts of plagioclase, amphibole, clinopyroxene, biotite, K-feldspar, quartz and apatite. Broadly, they show low SiO2 content (49–56wt.%), and high MgO+FeOt (10–17wt.%), K2O (3–5wt.%), Ba (963–2095ppm), Sr (401–1149ppm) and Cr (87–330ppm) contents. Field scale observations suggest that vaugneritic rocks and lamprophyres would constitute two independent magma pulses. Vaugneritic dioritoids intruded as syn-plutonic dykes, whereas lamprophyres were emplaced after the almost complete consolidation of the host monzogranites. In this way, vaugnerite series rocks would be an evidence for the contemporaneity of crustal- and mantle-melting processes during a late-Variscan stage, while lamprophyres would represent the ending of this stage