Results 21 to 30 of about 1,650 (203)

Clockwise rotation of SW Japan and timing of Izanagi–Pacific ridge subduction revealed by arc migration

Progress in Earth and Planetary Science, 2023
Igneous rocks associated with the Cretaceous to Paleogene volcanic arc in SW Japan show ages that young from west to east in a direction parallel to the Median Tectonic Line suggesting corresponding translation of a heat source traditionally interpreted ...
Ken Yamaoka, Simon R. Wallis
doaj   +1 more source

Late Cretaceous coeval acidic and basic magmatism, Karacaali Magmatic Complex, Central Anatolia, Turkey

International Geology Review, 2012
The Central Anatolia Crystalline Complex (CACC) is characterized by Late Cretaceous high-temperature metamorphic rocks intruded by S-, I-, and A-type granitoids. Coeval basic plutonic and volcanic rocks also crop out in the complex. The NE–SW-trending Karacaali Magmatic Complex (KMC) represents a clear example of synchronous basic and acidic magmatic ...
Delibas, Okan, Genc, Yurdal
openaire   +2 more sources

Cretaceous magmatism in the northern Lhasa Terrane: Implications for the tectonic evolution and crustal growth tempos of central Tibet

Geological Society of America Bulletin
The subduction and demise of an ocean plate are generally recognized as essential processes that result in the reworking and maturation of the continental crust.
Wan-Li Tang, F. Huang, Ji-feng Xu, Yunchuan Zeng, Xi-Jun Liu   +4 more
semanticscholar   +1 more source

Zircon U-Pb ages and geochemistry of Early Cretaceous volcanic rocks, northwestern Korean Peninsula: Constraints on Late Early Cretaceous continental arc distribution in Northeast Asia

Journal of Asian Earth Sciences: X, 2022
In the northwestern Korean Peninsula, Cretaceous volcanic rocks are composed of andesite, andesite-dacite and rhyolite intercalated with terrigenous clastic rocks.
Jonghyok Yang, Hyonchol Ku, Ung Pak, Chungil Ri, Myongchol Kim, Cholsu Jong, Hyonuk Pak, Jongnam Kim, Songhyok Ju, Cholhyon Kim, Jusong Yun, Sunghyon Kim   +11 more
doaj   +1 more source

Structural pattern and neotectonic activity [PDF]

Acta Montanistica Slovaca, 1996
The north-eastern Serbia is one of the most important ore bearing areas in Yugoslavia and Balkan. The Bor and Majdanpek are world-wide known copper ore deposits. Mineralization is con-nected with the Upper Cretaceous magmatism.
Živkoviæ Periša, Èupkoviæ Tomas, Pavloviæ Radmila, Markoviæ Miroslav   +3 more
doaj  

The age of mineralization of Mayskoe gold ore deposit (Central Chukotka): results of Re-Os isotopic dating

Записки Горного института, 2020
The article presents the results of the sulfide mineralization dating of the Mayskoe gold ore deposit using the Re-Os isotope system and isochron age estimation method of the main sulfide minerals: arsenopyrite, pyrite, and antimonite.
Dmitry S. Artemiev, Robert Sh. Krymsky, Boris V. Belyatsky, Dmitry S. Ashikhmin   +3 more
doaj   +1 more source

Geological Characteristics of the Mesozoic Unconformities in Eastern Heilongjiang, NE China: Implications for the Mesozoic Continental Margin Evolution of Northeast Asia

Frontiers in Earth Science, 2022
Most of the significant petroleum- and coal-bearing sedimentary basins in Northeast Asia originated via rifting and thermal subsidence during the Late Jurassic-Early Cretaceous, followed by basin inversion in the Late Cretaceous.
Xueqin Zhao, Xueqin Zhao, Congcong Lv, Yaoxi Jiang, Heyan Zhu, Fudong Wang, Peiran Chai   +6 more
doaj   +1 more source

Multistage Cretaceous magmatism in the northern coastal region of Ellesmere Island and its relation to the formation of Alpha Ridge – evidence from aeromagnetic, geochemical and geochronological data

, 2016
The poorly studied Alpha–Mendeleev Ridge of the Amerasia Basin of the Arctic Ocean is covered by a large magnetic high and interpreted to be part of the Cretaceous High Arctic Large Igneous Province (HALIP). At the north coast of Ellesmere Island, in the
Solveig Estrada, D. Damaske, F. Henjes‐Kunst, B. Schreckenberger, G. Oakey, K. Piepjohn, Katja Eckelmann, U. Linnemann   +7 more
semanticscholar   +1 more source

Southward-Directed Subduction of the Farallon–Aluk Spreading Ridge and Its Impact on Subduction Mechanics and Andean Arc Magmatism: Insights From Geochemical and Seismic Tomographic Data

Frontiers in Earth Science, 2020
Since the initial proposal of the past existence of a southward-directed mid-ocean ridge–subduction interaction in the Andes during Late Cretaceous–Paleogene times, several studies have been devoted to uncover the tectonomagmatic evidence of this process.
Sofía B. Iannelli, Sofía B. Iannelli, Lucía Fernández Paz, Lucía Fernández Paz, Vanesa D. Litvak, Vanesa D. Litvak, Guido Gianni, Guido Gianni, Lucas M. Fennell, Lucas M. Fennell, Javiera González, Friedrich Lucassen, Simone Kasemann, Verónica Oliveros, Andrés Folguera, Andrés Folguera   +15 more
doaj   +1 more source

Geochemistry of volcanic rocks from the south of Gazik (east of Birjand): implications for the evolution of Sistan Ocean (eastern Iran) [PDF]

پترولوژی, 2017
The study area is located the south of Gazik (east of Birjand) and along the eastern margin of the Sistan suture zone. The south of Gazic volcanics crop out as a north- south trending unit.
Morteza Delavari, Asghar Dolati, Emad Alipoorian   +2 more
doaj   +1 more source