Results 31 to 40 of about 11,069 (182)

Tab. 2.4-3. Rare earth analysis of Muehlig-Hofmannfjella granitoids, Central Dronning Maud Land, East Antarctica

open access: yes, 2007
Tab. 2.4-3.
Prasad, A V Keshava   +5 more
core   +1 more source

Geochemistry and Geochronology of Magmatic Rocks in Southwestern and Northeastern Cambodia: Implications for the Tectonic Evolution and Metallogenesis of the Loei Fold Belt

open access: yesGeological Journal, EarlyView.
The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang   +6 more
wiley   +1 more source

Geochemical Characteristics of the Hida Granitoids in the Unazuki and Katakaigawa Areas, Central Japan

open access: yesGeosciences
The Hida Belt in central Japan is a key geological unit for understanding the crustal growth of the Eurasian continent in the Mesozoic. However, while previous studies have focused primarily on geochronology, the geochemical characteristics of its rocks ...
Kazuki Oishi   +3 more
doaj   +1 more source

FEDOROVSKY, VALENTIN S. – THE CORYPHAEUS OF SIBERIAN GEOLOGY

open access: yesГеодинамика и тектонофизика, 2015
The publication is devoted to the 80 anniversary of Valentin S. Fedorovsky, the coryphaeus of Siberian geology.
Eugene V. Sklyarov   +4 more
doaj   +1 more source

The Geological–Structural Types of Granitoids

open access: yes, 1974
The existence of five natural geological structural types of granitoids is argued: (1) early orogenic (early folding or intrageanticlinal); (2) late orogenic, including granitoids of block-mountain areas; (3) tele-early orogenic; (4) tele-late orogenic;
G. M. Zaridze
core   +1 more source

Late Pleistocene Volcanic Rocks From Tengchong Volcanic Field at SE Tibetan Plateau: Constraints on Petrogenesis and Mantle and Crustal Processes

open access: yesGeological Journal, EarlyView.
Early zircon saturation and crystallisation occur in mafic (52–54 wt.% SiO2) lavas at Tengchong volcanic field. These early formed zircons with high δ18O (6.6‰–7.9‰) indicates mantle enrichment by subducted supracrustal materials. ABSTRACT Late Pleistocene (< 0.2 Ma) mafic and evolved volcanic rocks occur in northern Tengchong Volcanic Field, SE ...
Lizhu Wang, Haibo Zou
wiley   +1 more source

Central Asian Orogenic Belt Granitoids Geochemistry Dataset

open access: yes, 2019
The dataset includes Table S1 to S7 of the granitoids from the Central Asian Orogenic ...
Jingao Liu (7861952)
core   +1 more source

A Reassessment of Petrochemistry of ~1.2 Ga Tonalitic Rocks of the Northern Tugela Terrane, Natal Metamorphic Belt, South Africa: Further Constraints on the Evolution of This Belt

open access: yesGeological Journal, EarlyView.
Our petrochemical studies on ~1.2 Ga granitoids of the Natal Metamorphic Belt, South Africa, do not suggest any property similar to Phanerozoic‐style subduction‐related granitoids. Plot of Kotongweni Tonalite in Y versus Sr diagram (after Moyen 2011), note that most samples have Sr/Y < 50.
Palesa Leuta   +2 more
wiley   +1 more source

Multiple stages of continental rifting in Eastern Peninsular Malaysia: New insights from Jurassic–Cretaceous granitoids

open access: yes, 2023
Supplementary Table S2 Zircon in-situ Hf isotopic data for the Middle Jurassic–Early Cretaceous granitoids in East ...
Xin Qian (714942)   +6 more
core   +3 more sources

AGE AND COMPOSITION OF THE EARLY PALEOZOIC MAGMATIC ASSOCIATIONS AND RELATED RARE-ELEMENT PEGMATITES IN THE SOUTH-EASTERN PART OF THE SANGILEN BLOCK, TUVA-MONGOLIAN MASSIF

open access: yesГеодинамика и тектонофизика, 2021
The article presents new data on ages (U-Pb zircon dating, SIMS SHRIMP-II) and chemical compositions of rocks from gabbro-granitic and granite-leucogranitic magmatic associations.
L. G. Kuznetsova   +3 more
doaj   +1 more source

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