نتایج جستجو برای: monzogranite

تعداد نتایج: 108  

Journal: :Revista mexicana de ciencias geológicas 2022

La Unión pluton (LUP) belongs to the metamorphic and igneous Sula Terrane (ST) of Central Guatemala, limited north by Motagua fault (MF) south Jocotán-Chamelecón system (J-CH-FS). The basement ST is characterized high-grade rocks belonging Las Ovejas Complex extensive low-grade San Diego phyllite, latter in tectonic contact with LUP. A combination field data, petrographic geochemical analyses a...

Journal: :journal of sciences islamic republic of iran 0

the etive igneous complex has intruded into dalradian and moine meta-sedimentary rocks in devonian. main rock types of the complex are granodiorite, monzodiorite, monzogranite, granite and diorite. geochemical studies show that the magmas were of high k calc-alkaline, i-type and metaluminous nature. application of discriminant diagrams to the etive rocks indicates a possible within-plate tecton...

Journal: :Minerals 2023

Apatite Sr-Nd and zircon Hf-O isotopes are broadly used to trace magma sources constrain evolution processes, further improving our understanding of the origin granitoids. We present U-Pb ages, whole-rock major elements, Sr-Nd-Hf, Hf-O, apatite isotopic data for coarse-grained quartz monzonite, biotite monzogranite, granite porphyry in Yushulinzi pluton Liaodong Peninsula, eastern North China C...

The Etive igneous complex has intruded into Dalradian and Moine meta-sedimentary rocks in Devonian. Main rock types of the complex are granodiorite, monzodiorite, monzogranite, granite and diorite. Geochemical studies show that the magmas were of high K calc-alkaline, I-type and metaluminous nature. Application of discriminant diagrams to the Etive rocks indicates a possible within-plate tecton...

2001
T. Kebede U. S. Kloetzli C. Koeberl

The Precambrian rocks in western Ethiopia consist of highand low-grade terranes intruded by granitoids with a wide compositional spectrum. The formation ages of these granitoid rocks are, so far, poorly understood. Single-grain zircon Pb/Pb evaporation and conventional U/Pb dating conducted on four granitoids places time constraints on their emplacement and tectonothermal events. Three granitoi...

2017
F Talarico S Sandroni Christopher R. Fielding F. Talarico

Distribution patterns, petrography, whole-rock and mineral chemistry, and shape and fabric data are described for the most representative basement lithologies occurring as clasts (granule to boulder grain-size class) from the 625 m deep CRP-2/2A drillcore. A major change in the distribution pattern of the clast types occurs at c. 310 mbsf, with granitoid-dominated clasts above and mainly doleri...

Journal: :Frontiers in Earth Science 2022

In provenance investigation of Quaternary sediments, quartz luminescence sensitivity (QLS) has been employed as a technique. The weathering and influence on the earliest signs sedimentary require more consideration. this study, QLS properties eight samples Permian biotite monzogranite from borehole in southern tropics China are investigated. degree chemical does not correspond with values that ...

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