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作者:M. BIENKOWSKA-WASILUK , M. PALDYNA
来源:[J].Geologica Acta, 2018, Vol.16 (1), pp.75-92UB
摘要:Small perch-like fishes from the Oligocene of the Paratethys have been traditionally assigned to Serranus budensis (Heckel, 1856). A morphological revision of the holotype and specimens previously assigned to S. budensis from the Outer Carpathians, Poland, is provided here...
作者:O. FATKA , P. BUDIL
来源:[J].Geologica Acta, 2018, Vol.16 (1), pp.65-73UB
摘要:Remains of a digestive system from a slightly damaged articulated specimen of the comparatively rare bathycheilid trilobite Prionocheilus vokovicensis (Å najdr, 1956) are described for the first time. The specimen comes from the Middle Ordovician Šárka Formation of the Pra...
作者:J.P. LÓPEZ , L.I. BELLOS , J. DÍAZ-ALVARADO ...
来源:[J].Geologica Acta, 2018, Vol.16 (1), pp.25-43, I-IIUB
摘要:In the Tafí del Valle region, in northwestern Argentina, several intrusive bodies of lower Paleozoic age were emplaced in the metasedimentary Puncoviscana Formation, belonging to the Sierras Pampeanas. Four intrusive bodies outcrop in the study area: La Ovejería, El Infier...
作者:M. PERAL , M. FERNÀNDEZ , M. TORNÉ
来源:[J].Geologica Acta, 2018, Vol.16 (1), pp.93-105UB
摘要:The Gravity field and steady-state Ocean Circulation Explorer (GOCE) satellite mission was devised by the European Space Agency to study the Earth’s gravity field with an unprecedented accuracy using gravity gradient data. The goal of this study is to analyze the resolutio...
作者:L. LI , G.Q. YAO , M.J. CAI ...
来源:[J].Geologica Acta, 2018, Vol.16 (1), pp.45-64UB
摘要:Mudstones in the Sha-3 member of the Shahejie Formation, in the Tanggu area of the Huanghua Depression, have been found to contain analcime and ankerite. Hydrothermal sedimentation has been invoked to explain the origin of these two minerals, raising the question of whether ...
作者:J. DÍAZ-ALVARADO
来源:[J].Geologica Acta, 2017, Vol.15 (4), pp.261-281UB
摘要:One of the most outstanding characteristics of some granodioritic to granitic rocks is the presence of K-feldspar megacrysts. For instance, granodiorites and monzogranites of the Spanish Central System batholith present variable amounts of large (up to 10cm in length) euhedr...
作者:G. GALÁN , P. ENRIQUE , L. BUTJOSA ...
来源:[J].Geologica Acta, 2017, Vol.15 (4), pp.323-336UB
摘要:Olivine hornblendites (cortlandtites) form part of the Montnegre mafic complex related to late-Variscan I-type granitoids in the Catalan Coastal Ranges. Two generations of spinel are present in these hornblendites: Spl1 forms euhedral crystals included in both olivine and ...
作者:F. J. LÓPEZ-MORO , R. L. ROMER , M. LÓPEZ-PLAZA ...
来源:[J].Geologica Acta, 2017, Vol.15 (4), pp.395-408UB
摘要:Basic to intermediate high-K, high-Mg mantle-derived rocks occur throughout the Iberian Massif and are particularly important in the Tormes Dome, where vaugnerites form several stocks and small plutons. One of the largest and geochemically most variable among these plutons...
作者:J. ERRANDONEA-MARTÍN , M. CARRACEDO-SÁNCHEZ , F. SARRIONANDIA ...
来源:[J].Geologica Acta, 2017, Vol.15 (4), pp.361-378UB
摘要: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” g...
作者:M.F. PEREIRA , C. GAMA , C. RODRÍGUEZ
来源:[J].Geologica Acta, 2017, Vol.15 (4), pp.409-428UB
摘要:The Santa Eulália-Monforte massif is a post-kinematic Late Carboniferous-Early Permian calc-alkaline composite massif (LC-EP) located in the Ossa-Morena Zone (OMZ, Portugal). This paper examines the field relationships between pinkish granites and mafic-intermediate rocks f...

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