Results 31 to 40 of about 446 (178)
Open Geosciences, 2023 The Miocene tectonics of Papua New Guinea, where subduction, arc-continent collision, and changes in subduction direction are considered to have occurred, is very complex and various tectonic models have been proposed.
Hoshide Takashi +2 more
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Petrogenetic of Igneous Complex of Ilota Nanasi Gold Deposit, Gunung Pani, Gorontalo, Indonesia
JGEET: Journal of Geoscience, Engineering, Environment and Technology, 2023 Ilota Nanasi Au-Ag deposit located in the western flank of the Gn. Baganite, a part rhyodacite dome in Gn. Pani district, Gorontalo Province, where the extensive exploration programs were carried out by PT Gorontalo Sejahtera Mining (a subsidiary of PT J
Iryanto Rompo +4 more
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Geochemistry and Petrogenesis of Shoshonitic Dyke Swarm in the Northeast of Meshkinshahr, NW Iran [PDF]
Minerals, 2022 The study area is located in Ardabil province in the northeast of Meshkinshahr city. More than 200 small and large Eocene-age dykes form outcrops in this area. Laser ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) U–Pb zircon analyses yield a consistent age of 44.3 ± 1.8 Ma for the dyke swarms. These dykes include tephritic, andesitic
Mohammad Fadaeian +4 more
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Bulletin of the Mineral Research and Exploration, 2020 Volcanism that has been active since the early Miocene along a N-S trending line from Eskişehir to Isparta displays calc-alkaline and alkaline character and is closely associated with slab tearing processes.
Selin Bi̇lgi̇ç Gençer +2 more
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Geochemistry, petrogenesis, and tectonic setting of Nepheline syenite intrusive rocks in Razgah Sarab, East of Azerbaijan Province [PDF]
پترولوژی, 2023 Razgah, Kalibar, and Bozghosh intrusive rocks, located in East Azarbaijan province, are among the most important alkaline nepheline syenite rocks known in Iran.
Ali Ghasemi +2 more
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PETROGRAPHY AND MINERAL CHEMISTRY OF OLIGOCENE SHOSHONITIC DACITES FROM THE CENTRAL BOSNIA
Archives for Technical Sciences, 2020 <p>Postorogenic volcanic rocks of different Tertiary ages are very common in the Sava-Vardar Zone of the Dinarides and in the southeastern part of adjoing Pannonian Basin. South of the Sava-Vardar Zone, in central Bosnia, Tertiary volcanic rocks occur within ophiolite sequences and genetically related sedimentary formations of the ...
Zehra Salkić +2 more
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Solid Earth Sciences, 2021 The Fanchang volcanic basin is located between the ore-cluster districts of Tongling and Ningwu，the Middle-Lower Yangtze Metallogenic Belt (MLYMB), regionally.
Songsong Zhang +4 more
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Solid Earth Sciences, 2020 The Cishan gold deposit is a newly discovered medium-scale independent skarn gold deposit located in the Tongling ore cluster area of the Middle-Lower Yangtze Metallogenic Belt, and the ore-related intrusion is the Cishan pyroxene diorite. In this study,
Shasha Liu +5 more
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, 1982 Volcanic rocks of the Archean Oxford Lake Group are characterized by a stratigraphic progression from mafic to felsic compositions, accompanied by a systematic decrease in incompatible element abundances. This, coupled with high abundances of Sr, Rb, K2O,
Pigeon, Y. +7 more
core +1 more source
Magmatic sulphides in high-K calc-alkaline to shoshonitic and alkaline rocks [PDF]
Solid Earth, 2019 Abstract. We investigate in both mineralised and barren systems the occurrence and chemistry of magmatic sulphides and their chalcophile metal cargo behaviour during evolution of compositionally different magmas in diverse geodynamic settings. The investigated areas are: (a) the Miocene Konya magmatic province (hosting the Doganbey Cu-Mo and Inlice Au ...
Ariadni Georgatou, Massimo Chiaradia
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