Article
Geochemistry & Geophysics
Lu-Lu Hao, Qiang Wang, Andrew C. Kerr, Gang-Jian Wei, Fang Huang, Miao-Yan Zhang, Yue Qi, Lin Ma, Xue-Fei Chen, Ya-Nan Yang
Summary: Understanding the subduction and recycling of continental crust is crucial for reconstructing the long-term evolutionary history of Earth's mantle and crust. The Himalaya-Tibet orogen provides a natural laboratory for studying these processes. This study reports geochemical data of post-collisional ultrapotassic rocks in the Lhasa block, indicating a mantle source with recycled crustal components. The study contributes to our understanding of the geodynamic processes and thermal characteristics of the deep mantle in this region.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Geochemistry & Geophysics
Gong-Jian Tang, Derek A. Wyman, Qiang Wang, Lin Ma, Wei Dan, Ya-Nan Yang, Xi-Jun Liu, Hong-Yi Chen
Summary: Tibetan Cenozoic syn-collisional potassic-ultrapotassic igneous rocks provide valuable insights into the processes and origins of metasomatism in the upper mantle, as well as continental subduction and plateau uplift. This study examines the oxygen isotopes and major/trace elements of olivine in these rocks and mantle xenoliths from the western Kunlun area, and finds evidence of crustal recycling and mantle metasomatism. The results suggest that the high-delta O-18 signature in the potassic-ultrapotassic rocks reflects the nature of the primary melts and their source region, while the mantle xenoliths have been highly metasomatized by silicate materials from recycled Indian continental crust.
CONTRIBUTIONS TO MINERALOGY AND PETROLOGY
(2022)
Article
Geochemistry & Geophysics
Wei Fang, Li-Qun Dai, Yong-Fei Zheng, Zi-Fu Zhao
Summary: This study reports for the first time the Mo isotope composition of mafic igneous rocks in a typical continental subduction zone in east-central China, providing insight into Mo isotope recycling in continental subduction zones.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Geochemistry & Geophysics
Haiyang Liu, Ying-Yu Xue, Kun Wang, Wei-Dong Sun, Kun Wang
Summary: By studying the petrographic compositions, geochemical properties, and potassium isotopic compositions of Baoji ultrapotassic rocks from China, it was revealed that their mantle source was modified by slab-derived fluids, with K isotopes able to trace deep processes in subduction zones.
Article
Geosciences, Multidisciplinary
Vojtech Janousek, Yulia V. Erban Kochergina, Alexandre Andronikov, Vladimir K. Kusbach
Summary: The Moldanubian Zone of the Bohemian Massif has been intruded by three Variscan plutonic suites. Their mantle sources evolved and may be related to Andean-type subduction and deep subduction/relamination.
INTERNATIONAL JOURNAL OF EARTH SCIENCES
(2022)
Article
Geochemistry & Geophysics
F. Casetta, R. B. Ickert, D. F. Mark, P. P. Giacomoni, C. Bonadiman, T. Ntaflos, A. Zanetti, M. Coltorti
Summary: This study successfully characterized the impact of the shoshonitic magmatic event in the Dolomites on the underlying SCLM through detailed geochemical and petrological analysis, revealing the composition and evolution of the Mid-Triassic SCLM source.
Article
Geochemistry & Geophysics
Aiqing Ren, Zaicong Wang, Keqing Zong, Zhaochu Hu, Huai Cheng, Xiang Wang, Wen Zhang, Weijun Chen
Summary: Refertilization of fertile garnet lherzolites occurs during peak-UHP metamorphic stages in a continental subduction channel, as shown by the presence of abundant clinopyroxene and garnet, low Mg# and high Al2O3. The metasomatic agents for refertilization are likely basaltic-intermediate melts incorporating continental materials.
Article
Geochemistry & Geophysics
Li-Tao Ma, Li-Qun Dai, Zi-Fu Zhao, Fang Huang, Bing Gong
Summary: We conducted an integrated study on mafic arc igneous rocks in Southwestern Tianshan, China to distinguish slab aqueous solutions from sediment melts in generating arc magmatism. The DKR and NZS rocks are enriched in fluid-mobile elements, while the SXY rocks are enriched in melt-mobile elements. Quantitative model calculations and analysis of geochemical characteristics further confirmed these findings.
Article
Geochemistry & Geophysics
Jinran Qiao, Chen-Ao Zhou, Jie Dong, Mark B. Allen, Liming Yang, Li Su, Shuguang Song
Summary: Potassic to ultrapotassic and bimodal volcanic rocks found in the Oulongbuluke block provide valuable insights into the mantle properties and crust-mantle interactions during continental collision. The subalkaline and alkaline volcanic suites show enrichments in LREEs and LILEs, but depletions in HFSEs. The subalkaline suite is likely derived from mantle-derived mafic rocks, while the alkaline suite is derived from metasomatized mantle sources, possibly related to subduction-zone fluids and potassic-rich melts during the Proto-Tethys Ocean subduction.
Article
Geochemistry & Geophysics
Zhi-Hua Zhao, Guo-Liang Zhang, Shuai Wang, Jian-Xin Zhao
Summary: The study analyzed volcanic rocks on the South China continental margin and found different types of basalt rocks on the Leizhou Peninsula and Hainan Island. The rocks on the Leizhou Peninsula show island arc basalt characteristics, while those on Hainan Island are typical ocean island basalts. These findings may be related to interactions between the Hainan plume and ancient plate subduction events.
Article
Geochemistry & Geophysics
Daniel Gomez-Frutos, Antonio Castro, Gabriel Gutierrez-Alonso
Summary: Post-collisional voluminous silicic magmatism, represented by large granodiorite batholiths and minor intrusions, contributes to long-term continental growth and can be derived from a metasomatized mantle source. The timing of post-collisional magmatism is significant for continental crustal growth, as it reaches maximum values during the amalgamation-collisional stage of the supercontinent cycle. However, the importance of post-Archean, post-collisional magmatism has been underestimated in calculating continental crustal growth through time.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)
Article
Geochemistry & Geophysics
Jihyuk Kim, Jung-Woo Park, Mi Jung Lee, Sunghwan Im, Chang Whan Oh
Summary: The study reveals the presence of ultrapotassic igneous rocks rich in phlogopite and amphibole beneath the Yeongnam Massif during the Triassic period. These rocks show mantle-derived features and are likely originated from partial melts of the phlogopite-bearing lithospheric mantle.
Article
Geosciences, Multidisciplinary
Yanhui Suo, Sanzhong Li, Xianzhi Cao, Yiming Liu, Junjiang Zhu, Xiyao Li, Ian Somerville
Summary: The study reveals the presence of a series of ancient Tethys ocean basins beneath the Indian Ocean, as well as suspected Gondwana fragments. These plate tectonics have complex effects on the shallow crust and deep mantle structure, making it challenging to reconstruct East Gondwana and discuss geodynamics in the Tethyan Realm. The research also identifies signs of lithospheric or crustal thinning as a tracer of subducted plates.
EARTH-SCIENCE REVIEWS
(2021)
Article
Geochemistry & Geophysics
Barun Maity, Graham D. Layne, Fred J. Longstaffe
Summary: This study investigates the petrogenesis and tectonic environments of ca. 980 Ma potassic to ultrapotassic dykes (PUD) from the Canyon domain in central Grenville Province, Canada, using whole-rock Sr-Nd-Pb-O isotope data and previously published results. The results reveal the diverse origins of the PUD dykes, involving both fertile and depleted sources, and significant impact of ancient subduction. The latest phase of fluid/melt metasomatism during the late-Grenvillian tectonic setting also plays an important role.
Article
Geology
Zong-Yuan Tang, De-You Sun, Jun Gou
Summary: Triassic magmatism in Northeast China was controlled by the Mongol-Okhotsk Ocean, Palaeo-Asian Ocean, and Palaeo-Pacific Ocean tectonic regimes, with felsic magmas predominantly formed from the recycling of juvenile and ancient crustal components. The region experienced a syn- to post-collisional orogenic regime in the Triassic, transitioning to the Palaeo-Pacific Ocean tectonic regime, with different blocks influenced by different tectonic regimes and ocean closures.
INTERNATIONAL GEOLOGY REVIEW
(2022)
Article
Engineering, Biomedical
Alina M. Crainic, Mauro Callisti, Martin R. Palmer, Richard B. Cook
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2019)
Article
Geochemistry & Geophysics
Ayca Kocaarslan, E. Yalcin Ersoy
Article
Geochemistry & Geophysics
He-Dong Zhao, Kui-Dong Zhao, Martin R. Palmer, Shao-Yong Jiang
Article
Geosciences, Multidisciplinary
Samet Saka, Ibrahim Uysal, Argyrios Kapsiotis, Utku Bagci, E. Yalcin Ersoy, Ben-Xun Su, Hans-Michael Seitz, Ernst Hegner
JOURNAL OF ASIAN EARTH SCIENCES
(2019)
Article
Geosciences, Multidisciplinary
He-Pin Wu, Shao-Yong Jiang, Martin R. Palmer, Hai-Zhen Wei, Jing-Hong Yang
PRECAMBRIAN RESEARCH
(2019)
Review
Geosciences, Multidisciplinary
Jack Longman, Martin R. Palmer, Thomas M. Gernon, Hayley R. Manners
EARTH-SCIENCE REVIEWS
(2019)
Article
Geochemistry & Geophysics
Orhan Karsli, Abdurrahman Dokuz, Raif Kandemir, Faruk Aydin, Axel K. Schmitt, E. Yalcin Ersoy, Cihangir Alyildiz
Article
Geology
Xiang Li, Kui-Dong Zhao, Shao-Yong Jiang, Martin R. Palmer
ORE GEOLOGY REVIEWS
(2019)
Article
Biochemical Research Methods
Christopher D. Standish, Thomas B. Chalk, Tali L. Babila, J. Andy Milton, Martin R. Palmer, Gavin L. Foster
RAPID COMMUNICATIONS IN MASS SPECTROMETRY
(2019)
Article
Geology
M. R. Palmer, E. Y. Ersoy, C. Akal, I. Uysal, S. C. Genc, L. A. Banks, M. J. Cooper, J. A. Milton, K. D. Zhao
Article
Geology
Samuele Agostini, Mehmet Yilmaz Savascin, Paolo Di Giuseppe, Flavio Di Stefano, Ozgur Karaoglu, Michele Lustrino, Piero Manetti, Yalcin Ersoy, Sevcan Kurum, Ayten Oztufekci Onal
ITALIAN JOURNAL OF GEOSCIENCES
(2019)
Editorial Material
Geosciences, Multidisciplinary
Ibrahim Uysal, E. Yalcin Ersoy, Aral I. Okay
JOURNAL OF ASIAN EARTH SCIENCES
(2021)
Article
Geology
Yalcin E. Ersoy, Ibrahim Uysal, Osman Candan, Martin R. R. Palmer, Dirk Mueller
Summary: In eastern Anatolia, the Divrigi-Hekimhan Magmatic Province (DHMP) consists of alkaline rock units formed 77-69 million years ago, located to the northwest of the Baskil Arc formed 85-74 million years ago. These rocks are composed of different types, including basaltic, trachytic, and syenitic rocks, with varying mineral compositions. Geochemical analysis indicates that the magmas originated from a shallow asthenospheric mantle source, which had undergone metasomatism due to subduction processes.
INTERNATIONAL GEOLOGY REVIEW
(2023)
Article
Geosciences, Multidisciplinary
E. Yacin Ersoy, Cueneyt Akal, Martin R. Palmer, Regina Mertz-Kraus
Summary: Northwestern Anatolia contains extensive Cenozoic magmatic rocks that were formed during long-term crustal accretion and extensional stages. The ages of the plutonic and volcanic rocks in Rhodopes, northern Aegean, and western Western Anatolia show a southward decreasing trend and an increasing crustal recycling component. However, the mafic volcanic and granitoid belts in the northeastern parts of Western Anatolia do not exhibit these characteristics. In this study, we present new age data and geochemical analyses to resolve these uncertainties.
JOURNAL OF ASIAN EARTH SCIENCES-X
(2023)
Article
Geology
Yalcin E. Ersoy, Osman Candan, Bilal Sari, Ibrahim Uysal, Martin R. Palmer
Summary: A new field study and synthesis of previously published data have provided insights into the geodynamic evolution of the Gurun Curl in central eastern Anatolia. It is suggested that a Tethys Ocean transform fault was present in the region, separating the Taurides into the Akdere Sector in the west and the Munzur Sector in the east during the Late Cretaceous. Various geological events, such as ophiolite obduction, magmatism, continental subduction, and slab roll-back, have shaped the area's tectonic history. The final appearance of the Gurun Curl was completed by Miocene to Recent strike-slip fault movements.
INTERNATIONAL GEOLOGY REVIEW
(2023)
Article
Geochemistry & Geophysics
Huichuan Liu, Alan R. Hastie, Chiara Maria Petrone
Summary: This study conducted isotope analyses on two ocean island basalt (OIB)-associated enriched mafic intrusions in the Yunnan-Burma region, and found that these rocks may have originated from the subduction recycling of marine sediments and altered oceanic crust.
Article
Geochemistry & Geophysics
L. Notini, M. Scambelluri, A. Tommasi, A. Zanetti, F. Ferri, A. Rodriguez-Vargas, E. Rampone
Summary: This study provides important petrologic information on the mantle wedge above an active subduction zone in Southern Colombia. The researchers analyzed a unique suite of rock samples and found evidence of hydration, metasomatism, and partial melting in the mantle wedge. They also observed variations in lithotypes, textures, and mineral abundance, indicating different interactions with melts and fluids. This study sheds light on the complex petrological processes occurring in the mantle wedge and contributes to our understanding of subduction zone dynamics.
Article
Geochemistry & Geophysics
Sourav Bhattacharjee, Aniket Chakrabarty, Roger H. Mitchell, Suresh Chandra Patel, Evgeniy N. Kozlov, Ekaterina N. Fomina, Monojit Dey, Supratim Pal
Summary: The Hogenakkal complex in India consists of silicate-rich and silicate-poor carbonatites and clinopyroxenites. The formation of carbonatite is influenced by silicate minerals. The carbohydrothermal mineralization in the carbonatites is induced by magma-derived fluids and interactions with the surrounding rocks.
Article
Geochemistry & Geophysics
Jia-Min Wang, Kyle Patrick Larson, Jin-Jiang Zhang, Liang Zhao, Fu-Yuan Wu
Summary: The role of collisional belts in the global carbon budget is controversial. This study reveals a previously unrecognized carbon source in the collisional orogen of the Himalayas, where metamorphism of carbonate-bearing rocks in the hanging wall resulted in significant CO2 degassing.
Article
Geochemistry & Geophysics
Joseph Martial Akame, Elson Paiva Oliveira, Vinciane Debaille, Marc Poujol, Bernhard Schulz, Dieudonnee Bisso, Fabien Humbert, Serge Parfait Koah Na Lebogo, Philmont Zo'o Zame
Summary: Archean granitoids play key roles in the crustal evolution and can provide important insights into early geologic processes.
Article
Geochemistry & Geophysics
Xiguang Huang, Jun He, Jingxin Zhao, Jingzhao Dou, Weiyong Li, Aimin Hu, Ge Liu, Yiru Ji, Fukun Chen, Shuangqing Li
Summary: This study investigates the zircon ages and whole-rock geochemical data of Late Paleozoic magmatic rocks in the Western Yunnan Tethyan belt to identify the origin and mechanism of mantle melting. The results suggest that these magmatic rocks may originate from different mantle domains that were metasomatized by slab-derived fluids and sediment-derived melts.