Results 61 to 70 of about 45,840 (156)

Unraveling the role of mantle and crustal processes in Mo–Cu enrichment: Insights from the large Tongchanggou deposit, eastern Tibet

Solid Earth Sciences
Porphyry-type molybdenum (Mo)–copper (Cu) deposits are major sources of Mo and significant contributors to Cu, making them a focal point of research in the field of mineral deposits.
Jilong Jia, Long Ren, Huaying Liang
doaj   +1 more source

Zircon U–Pb ages of granitic and mafic dikes associated with granitoids and metamorphic rocks of the Ryoke Belt in the eastern Kii Peninsula, southwest Japan

Island Arc, Volume 33, Issue 1, January/December 2024.
Abstract Zircon U–Pb dates for felsic and intermediate to mafic dikes intruding into the Ryoke granitoids and metamorphic rocks at selected outcrops in the Takamiyama area of the eastern Kii Peninsula, southwest Japan, were determined along with their geology and petrography to reveal the history of Cretaceous magmatism. At each outcrop, the felsic and
Kazunori Zushida, Makoto Takeuchi, Takashi Nakajima, Sae Taniguchi, Yuxiao Li, Yoshihiro Asahara, Koshi Yamamoto   +6 more
wiley   +1 more source

Types and genesis of the enclaves in Central Anatolian granitoids

, 1999
Central Anatolian granitoids range from tonalite-monzonite, through granodiorite, to alkali feldspar granite in composition, and typically have angular to oval-shaped mafic magmatic and metamorphic enclaves.
Güleç, Nilgün Türkan, Gulec, N, Kadioglu, Yk   +2 more
core   +1 more source

Genesis of the Early Indosinian Darongshan Granitoid in South China: Response to the Subduction of the Eastern Paleo‐Tethys Ocean

Geofluids, Volume 2024, Issue 1, 2024.
The Bangxi–Chenxing suture zone is an essential area from which information about the closure history of the eastern Paleo‐Tethys Ocean can be obtained. The Darongshan granitoid, which is adjacent to this suture, lies among the widely distributed granitic rocks and few basic rocks in the southern Guangxi Province.
Meng-Yu Tian, Yong-Jun Di, Chun-Yu Zhang, Shu-Guang Deng, Farhad Ehya   +4 more
wiley   +1 more source

PETROGENESIS AND ORIGIN OF THE CHENAR GRANITOID STOCK, NW OF KERMAN, IRAN: EVIDENCE OF NEOTETHYS SUBDUCTION RELATED ARC MAGMATISM [PDF]

Journal of Sciences, Islamic Republic of Iran, 2003
The lower to middle Miocene Chenar granitoid stock, a part of Central Iranian volcanic belt, is intruded into Eocene volcano-sedimentary complex in northwestern Kerman in south Central Iran.
M. Arvin
doaj  

The age of the Mont-Blanc granite (Western Alps) : a heterogeneous isotopic system dated by Rb-Sr whole rock determinations on its microgranular enclaves

, 1989
New Rb-Sr whole rock age data have been obtained for the Mont-Blanc calc-alkaline Hercynian granite. Different facies of the granite have been sampled, as well as locally abundant microgranular enclaves of magmatic origin.
Bussy, François, Schaltegger, Urs, Marro, Christian   +2 more
core   +1 more source

The Ilha Anchieta Quartz Monzonite: the southernmost expression of ca. 500 Ma post-collisional magmatism in the Ribeira Belt

Anais da Academia Brasileira de Ciências, 2011
The Ilha Anchieta Quartz Monzonite (IAQM) occupies most of the homonymous island in the coast of the state of São Paulo, and is intrusive into foliated rocks of the ~565 Ma Ubatuba Charnockite.
José M. Azevedo Sobrinho, Valdecir A. Janas, Antonio Simonetti, Larry M. Heaman, Jair santoro, Hélio N. Diniz   +5 more
doaj   +1 more source

Supplemental Material: Evidence for mixed contribution of mantle and lower and upper crust to the genesis of Jurassic I-type granites from Macao, SE China

, 2020
GSA Data Repository Item 2020193, GSA Bulletin. File size: about 3660 KB. Appendix 1: Location of analyzed samples; Appendix 2: (A) Electron microprobe standards and detection limits; (B) Detection limits of whole-rock elemental analyses; Appendix 3 ...
P. Quelhas (9011978), et al. (281964)
core   +1 more source

Petrogenesis of Bir Madi Gabbro-Diorite and Tonalite-Granodiorite Intrusions in Southeastern Desert, Egypt: Implications for Tectono-Magmatic Processes at the Neoproterozoic Shield [PDF]

International Journal of Economic and Environment Geology, 2010
The Neoproterozoic rocks of the Bir Madi area, south eastern desert, comprise a Metagabbro-Diorite Complex (GDC) and a Tonalite-Granodiorite Suite (TGrS).
M. A. OBEID
doaj  

Mafic enclaves record syn-eruptive basalt intrusion and mixing [PDF]

, 2018
Mafic enclaves hosted by andesite erupted at the Soufrière Hills Volcano between 1995 and 2010 yield insights into syn-eruptive mafic underplating of an andesite magma reservoir, magma mixing and its role in sustaining eruptions that may be widely ...
Barclay, Jenni, Madeleine C.S. Humphreys, Thomas Christopher, Plail, Melissa, Melissa Plail, Edmonds, Marie, Andrew W. Woods, Woods, Andrew W., Christopher, Thomas, Marie Edmonds, Herd, Richard A., Woods, Andrew, Jenni Barclay, Richard A. Herd, Humphreys, Madeleine C.S.   +14 more
core   +2 more sources