Results 41 to 50 of about 48,430 (124)

Block and Bomb Field of the 1888–1890 CE Eruption at La Fossa Cone (Vulcano, Aeolian Islands): Constraints on Conduit Stratigraphy and Eruptive Dynamics

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract Vulcanian eruptions are classically associated with the launch of ballistic ejecta and particularly with the production of breadcrust bombs. Morpho‐textural analysis of these ejecta provides critical insight into the poorly constrained processes controlling the complex dynamics of Vulcanian activity.
P. Gabellini, R. Cioni, M. Pistolesi, P. Donato, R. De Rosa   +4 more
wiley   +1 more source

Petrogenesis and Tectonic Implication of the Newly Identified Rhyacian and Orosirian Orthogneisses in the Northwestern Part of the Gyeonggi Massif (Soyeonpyeongdo and Ganghwado Areas), South Korea: Constrained From Whole‐Rock Geochemistry and Zircon U‐Pb‐Hf Isotopic Compositions

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract The Gyeonggi Massif is one of the major Precambrian basements in the Korean Peninsula where Paleoproterozoic orthogneiss and paragneiss were widely exposed. In this study, newly identified Rhyacian to Orosirian meta‐igneous rocks from the northwestern Gyeonggi Massif (Soyeonpyeongdo and Ganghwado areas) were investigated to elucidate their ...
Seung Hwan Lee, Deung‐Lyong Cho, Jeong‐Yeong Park, Sung Won Kim, Byung Choon Lee, Mingguo Zhai   +5 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

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

Tectonic Evolution and Crustal Growth of the East Kunlun Orogen, NW China: Insights From the Late Permian–Triassic Granitoids

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The East Kunlun Orogen (EKO) on the northern margin of the Tibetan Plateau experienced complex Late Paleozoic–Early Mesozoic tectono‐magmatic activities associated with the subduction and closure of the Paleo‐Tethys Ocean. Controversies remain regarding the timing and processes of the transition from subduction to collision and post‐collision,
Xiaodong Wang, Chao Wang, Liyun Zhang, Jinxiang Li, Yahui Yue, Lin Ding   +5 more
wiley   +1 more source

Geochemistry of microgranular enclaves and host granodiorite from Oledo, Central Portugal [PDF]

, 2007
Geochemistry of microgranular enclaves and host granodiorite from Oledo, Central ...
Silva, M.M.V.G., Neiva, A.M.R., Antunes, I.M.H.R.   +2 more
core   +2 more sources

Top-down structures of mafic enclaves within the Valle Fértil magmatic complex (Early Ordovician, San Juan, Argentina)

, 2021
Magmatic structures related to the mechanical interaction between mafic magmas and granitoids have been studied in the Valle Fértil calc-alkaline igneous complex, Argentina.
Martino, Roberto Donato, Pinotti, Lucio Pedro, D'Eramo, Fabiana, Castro Dorado, Antonio, Vujovich, Graciela, Otamendi, Juan Enrique, Tibaldi, Alejandro, Viñao, Aldana   +7 more
core  

Middle Cretaceous Andean‐Type Arc Evolution in the Sanandaj–Sirjan Zone (Shalair Valley), Iraq: New Geochronological and Geochemical Constraints

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract The middle Cretaceous granitoid plutons of the Shalair Valley, situated in northeastern Iraq, constitute a principal magmatic component of the Sanandaj–Sirjan Zone within the northwestern segment of the Zagros Orogenic Belt. Among these plutons, the equigranular Aulan body (AG) and the porphyritic Laladar body (LG) were crystallized at 111.0 ± 
Imad Kadhim Abdulzahra, Yoshihiro Asahara, Yousif Mohammad, Ayten Hadi   +3 more
wiley   +1 more source

Petrology of Post Eocene Granitoid Intrusive Rocks in the East of Kuh-Dom Region, North East of Isfahan, Iran

Journal of Stone and Construction Materials
The granitoid intrusive rocks east of Kuh-Dom, northeast of Ardestan, form part of the Urumieh-Dokhtar Magmatic Arc (UDMA) in central Iran. Their compositions range from granodiorite and quartz monzodiorite to diorite.
Ayat Sotoudeh, Mohammad Ali Aliabadi, Ali-Khan Nasre-Esfahani   +2 more
doaj   +1 more source

Syn‐ to Post‐Collisional Tectonic History of the Paleo‐Tethyan Orogenic Belt: Insights From Triassic Igneous Rocks in the North–Central Tibetan Plateau, China

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract The closure of the Paleo‐Tethys Ocean was one of the most important global geological events which formed the framework of the East Asian continent during the early Mesozoic. The Longmu Co‐Shuanghu suture zone is considered to record closure of the main basin of the Paleo‐Tethys Ocean.
Jinyong Li, Qingguo Zhai, Yiming Liu, Peiyuan Hu, Yue Tang, Lingfang Wu, Ning Yang   +6 more
wiley   +1 more source