Late-Variscan granitoid rocks of trondhjemitic and granitic composition, intruded in migmatitic paragneisses in the north-eastern Peloritani Mountains (southern Italy) at ~310 Ma and ~300 Ma, respectively, exhibit a range of deformation microstructures ...
Eugenio Fazio +3 more
doaj +1 more source
Hybridization in the subvolcanic Jaala-Iitti complex and its petrogenetic relation to rapakivi granites and associated mafic rocks of southeastern Finland [PDF]
The 1630 Ma Jaala-Iitti complex is an example of bimodal rapakivi granite magmatism in which the interaction of granite and diabase magmas have led locally to hybridization.
P.T. Salonsaari
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The Rio Dourado Intrusive Suite - 1.88 Ga A-type Granite - Southeastern Amazonian Craton - Mato Grosso - Brazil [PDF]
The Rio Dourado Intrusive Suite (RDIS) is composed of granitic rocks which are exposed in the southeastern AmazonCraton, Central Amazon Province. These granites intruded into the Paleoproterozoic granites of the Vila Rica IntrusiveSuite.
Márcia Aparecida de Sant’Ana Barros +6 more
doaj
Portuguese granites associated with Sn-W and Au mineralizations [PDF]
In northern and central Portugal, there are different tin-bearing granites. Most of them are of S-type, others have mixed characteristics of I-type and S-type granites and a few are of I-type.
A.M.R. Neiva
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The A-type granites with highly positive εNd(t) values in the West Junggar, Central Asian Orogenic Belt (CAOB), have long been perceived as a group formed under the same tectonic and geodynamic setting, magmatic sourceq and petrogenetic model. Geological
Chu Wu +4 more
doaj +1 more source
Petrographical Analysis of Warthian Fuvioglacial Gravels as a Tool to Trace the Source Area – A Case Study From Central Poland [PDF]
The petrographical features of the medium- and coarse-grained gravels (4-10 mm and 20-60 mm, respectively) of weathered and fresh (unweathered) deposits indicate, in combination with so-called indicator and statistical erratics, that two glacial lobes ...
Górska-Zabielska, Maria +1 more
core +2 more sources
The Precambrian basement of the Gyeonggi Massif in the central Korean Peninsula consists mainly of Paleoproterozoic (2.0–1.8 Ga) gneisses. In this study, we present petrological, zircon U–Pb age and Hf isotope, and whole-rock geochemical and Sr–Nd–Pb ...
Ji-In Kim, Sung Hi Choi
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Geo-environmental mapping using physiographic analysis: constraints on the evaluation of land instability and groundwater pollution hazards in the Metropolitan District of Campinas, Brazil [PDF]
Geo-environmental terrain assessments and territorial zoning are useful tools for the formulation and implementation of environmental management instruments (including policy-making, planning, and enforcement of statutory regulations).
A Cendrero +39 more
core +1 more source
Diorites, granites, and associated magmatic enclaves and dykes constitute the bulk of the Ladakh Batholith, which is an integral part of the Trans-Himalayan magmatic arc system.
Santosh Kumar
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New Permo-Carboniferous geochemical data from central Thailand: implication for a volcanic arc model [PDF]
Current ideas and models of geotectonic reconstructions of Southeast Asia are reviewed and new data on Late Carboniferous through Middle Permian tuffites and sills from central Thailand are presented in the light of the problems of Southeast Asian ...
Altermann +57 more
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