Results 21 to 30 of about 45,840 (156)

On the association of Magmatic Microgranular Enclaves (MMEs) and cordierite-bearing monzogranites at the Sierra Bermeja Pluton (SW Spain)

Geogaceta, 2021
Magmatic Microgranular Enclaves (MMEs) found within the cordierite-bearing monzogranites of the Sierra Bermeja Pluton (southern Iberian Massif) were investigated to understand their potential petrogenetic relationship.
Jon Errandonea-Martin, Fernando Sarrionandia, Manuel Carracedo-Sánchez, Idoia Garate-Olave, José Ignacio Gil Ibarguchi   +4 more
doaj   +1 more source

Schedule of Mafic to Hybrid Magma Injections Into Crystallizing Felsic Magma Chambers and Resultant Geometry of Enclaves in Granites: New Field and Petrographic Observations From Ladakh Batholith, Trans-Himalaya, India

Frontiers in Earth Science, 2020
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
doaj   +1 more source

Fingerprint of magma mixture in the leucogranites: Spectroscopic and petrochemical approach, Kalebalta-Central Anatolia, Türkiye

Open Geosciences, 2023
Leucogranites of Kalebalta in Central Anatolia are composed of plagioclase, quartz, orthoclase, and biotite and contains mafic microgranular enclaves (MME) in sizes ranging from few cm to 70 cm.
Güllü Bahattin, Akşit Asuman
doaj   +1 more source

Determination of P-T and tectonic setting of Ghaleh Yaghmesh plutonic complex (west of Yazd province) by using of mineral chemistry [PDF]

پترولوژی, 2017
The Ghaleh Yaghmesh plutonic massif is located the westernmost part of Yazd province and in the central part of the Urumieh – Dokhtar magmatic arc (UDMA).
Bahareh Fazeli, Mahmoud Khalili, Mahin Mansouri Esfahani   +2 more
doaj   +1 more source

K‐Rich Adakite‐Like Rocks in Central Tibet: Fractional Crystallization of a Hydrous, Alkaline Primitive Melt

Geophysical Research Letters, Volume 50, Issue 10, 28 May 2023., 2023
Abstract K‐rich adakite‐like rocks (KARs) in post‐collisional settings, such as in Tibet, have been widely linked with the melting of pre‐existing thickened crust. Here, we investigate geochemical data of the Late Eocene (38–34 Ma) volcanic rocks including KARs from the southern Qiangtang terrane (SQT) of central Tibet.
Wei Xu, Roberto F. Weinberg, Shi‐Hong Tian, Zeng‐Qian Hou, Zhu‐Sen Yang, Lu Chen, Feng Lai   +6 more
wiley   +1 more source

Geochronology and petrogenesis of granitoids and associated mafic enclaves from Ghohroud in the Urumieh–Dokhtar Magmatic Arc (Iran): Evidence for magma mixing during the closure of the Neotethyan Ocean

Geological Journal, Volume 57, Issue 8, Page 3313-3332, August 2022., 2022
A comprehensive dataset from petrographic characteristics to geochemical compositions of the mafic microgranular enclaves and granitoid host rocks from the Urumieh–Dokhtar Magmatic Arc (Iran) was presented. The new data provide significant insight into the evolution of magmatism in this area, which was tightly related to the Neotethyan closure.
Tayebeh Khaksar, Nematollah Rashidnejad‐Omran, Shuang‐Qing Li, Shu‐Guang Song, Ali Kananian, Fukun Chen, Su Li   +6 more
wiley   +1 more source

Mafic mineral clots and microgranular enclaves in A-type Hiltaba Suite granites from the Gawler Craton, South Australia: Origins and implications

, 2023
The origins of mafic mineral clots and microgranular enclaves in Mesoproterozoic granites were investigated in a case study of felsic A-type Hiltaba Suite granites from the Gawler Craton, South Australia.
Kontonikas-Charos, A., Ciobanu, Cristiana L., Kontonikas-Charos, Alkiviadis, Cook, Nigel J., Ehrig, K., Ehrig, Kathy, Cook, N.J., Ciobanu, C.L.   +7 more
core   +1 more source

A window into an older orogenic cycle: P–T conditions and timing of the pre‐Alpine history of the Dora‐Maira Massif (Western Alps)

Journal of Metamorphic Geology, Volume 40, Issue 4, Page 789-821, May 2022., 2022
Abstract Deciphering the pre‐orogenic evolution of subducted continental basement is challenging due to pervasive reworking of crust during subduction and exhumation. Survival of such polycyclic basement may occur locally in low strain domains bounded by intensely overprinted rocks.
Francesco Nosenzo, Paola Manzotti, Marc Poujol, Michel Ballèvre, Jessica Langlade   +4 more
wiley   +1 more source

Zircon U-Pb Dating, Petrology, Geochemistry of the Buya Pluton and Its MMEs in the Southern Margin of Tarim, Xinjiang

Yankuang ceshi, 2017
Paleozoic acidic intrusive rocks are widespread in the Tiekelike tectonic belt of the southern margin of Tarim. Petrography, whole-rock major and trace elements, and zircon U-Pb dating are reported for the Buya granodiorite and its mafic microgranular ...
HU Xue-yuan, GUO Rui-qing, NUER Kanati·Madayipu, GUO Yu, ZOU Ming-yu, LÜ Biao, WEI Zhen   +6 more
doaj   +1 more source

Supplemental Material: Mafic microgranular enclaves (MMEs) trace the origin of post-collisional magmas

, 2023
<p>Rock analyses, sample photographs, sampling and analytical methods, additional Harker diagrams, and extended discussion for geochemical modeling. </p>
Antonio Castro, Daniel Gómez-Frutos
openaire   +1 more source