Article
Geochemistry & Geophysics
M. A. Finch, R. F. Weinberg, V. R. Barrote, P. A. Cawood
Summary: This study analyzed Hf isotopic ratios of magmatic and inherited detrital zircons in migmatites from the Puncoviscana Formation in NW Argentina, revealing variations in isotopic values and the effect of a boundary layer around dissolving detrital zircon grains. The Hf isotope ratios of zircon rims are partly controlled by their cores and the mean value of the magma, showing the influence of magma flow and chemical diffusion on heterogeneities. Different end-members of anatectic systems can be identified based on core effect, magma homogenisation, and nature prior to zircon crystallisation, allowing for a better understanding of processes that modify Hf isotopic ratios in anatectic rocks.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Geosciences, Multidisciplinary
Jack E. Stirling, Anthony I. S. Kemp, Steven W. Denyszyn
Summary: The article investigates the geological history and formation process of the Cordilleran Bega Batholith, the largest I-type granite batholith in the Lachlan Fold Belt of southeastern Australia. By determining the geochronological ages of different plutonic rocks, it was found that these rocks have a long duration of formation, large overall volume, and continuity with other types of granites, suggesting a common source.
Article
Geosciences, Multidisciplinary
Felix Djerossem, Armin Zeh, Moussa Isseini, Olivier Vanderhaeghe, Julien Berger, Jerome Ganne
Summary: The study presents the first combined U-Pb ages and Lu-Hf isotope data of zircon grains from the southern Ouaddai area in Eastern Chad, providing insights into the crustal accretion and reworking history. The results indicate multiple magmatic events and metamorphic processes that shaped the geological evolution of the region.
PRECAMBRIAN RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
Colin L. Jones, Evan A. Orovan, Sebastien Meffre, Jay Thompson, Elena A. Belousova, Matthew J. Cracknell, John Everard, Ralph Bottrill, Simon Bodorkos, David R. Cooke
Summary: The Tasmanian Devonian granites were emplaced during the Tabberabberan Orogeny and have different zircon isotope compositions and melt evolution paths. The high epsilon Hf group of granites is strongly associated with granite-related Au, Sn, and Sn-W ore deposits.
Article
Geochemistry & Geophysics
Ping -Ping Liu, Sun-Lin Chung, Ben Ma, Xian-Hua Li, Qiu-Li Li, Hao-Yang Lee, Xiao-Ran Zhang
Summary: This study presents a complete dataset of zircon Hf-O isotopes of the latest Toba eruptions. The isotopic compositions of zircons vary slightly between eruptive units, suggesting an enriched and heterogenous magma source. The Hf-O isotopes of all the zircons are consistent with contamination of low-818O or high-818O materials during their ascent to the surface or storage in shallow magma reservoirs.
Article
Geochemistry & Geophysics
E. Bruand, C. Storey, M. Fowler, B. Dhuime, R. Doucelance
Summary: It is well-established that lanthanide rare earth elements (REEs) have the potential to record the nature and source characteristics of their host magmas, in both whole-rock and their minerals. This study focused on the multi-isotope analysis of titanite, zircon and apatite from high Ba-Sr granitoids in Northwest Scotland, revealing compatible isotopic systems and providing insight into the overall, mineral, and rock isotopic characteristics of the region. The study demonstrates that magmatic titanite and apatite, in addition to zircons, can provide detailed petrogenetic records, and suggests that integrated multi-mineral approaches have the potential to maximize constraints from in-situ mineral isotope geochemistry.
Article
Metallurgy & Metallurgical Engineering
Zhi-wei Wang, Tai-chang Zhu, Jing-wen Yu, Ling-ling Yuan
Summary: This paper presents an integrated study of zircon U-Pb ages and Hf-O isotopes for Mesoproterozoic and Paleozoic granites from the Xing'an-Airgin Sum Block. It reveals the existence of ancient crust and its links to the orogenesis during supercontinent cycles. The reworking of Neoproterozoic crust also played an important role in the Paleozoic accretion of the Central Asian Orogenic Belt.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2022)
Article
Geology
Qiong-Yao Zhan, Di-Cheng Zhu, Roberto F. Weinberg, Qing Wang, Jin-Cheng Xie, Liang-Liang Zhang, Zhi-Dan Zhao
Summary: Apatite, commonly found in various rocks, is a powerful tool for studying element partition between apatite and melt. Experimental data shows that melt composition strongly controls the partition of MgO in apatite. Contrasting behaviors of apatite MgO in volcanic and plutonic rocks provide insights into the debate about volcanic-plutonic connection.
Article
Geochemistry & Geophysics
Junhua Yao, Wei-Guang Zhu, Chusi Li, Zhong-Jie Bai, Yan-Jun Wang, Lei-Luo Xu
Summary: This study investigates the controls on the chemistry of Neoproterozoic arc magmas using zircon trace elements and Hf-O isotopes, as well as whole-rock chemical and Sr-Nd isotope compositions. The results show that both reduced and oxidized magmas can be produced simultaneously in a subduction zone.
Article
Geochemistry & Geophysics
Maryam Bendokht, Ali Reza Davoudian, Nahid Shabanian, John M. Cottle, Yunpeng Dong, Xiaoming Liu
Summary: Meta-granites in the Tutak metamorphic Complex preserve crucial information about the Late Neo-proterozoic tectonic history of the Sanandaj-Sirjan Zone, Iran. This paper employs comprehensive zircon U-Pb geochronology, whole-rock geochemistry, and zircon Lu-Hf isotopic data to elucidate the protolith, tectonic setting, and evolutionary history of these rocks. The results suggest that the granitic melts in the Sanandaj-Sirjan Zone were produced via partial melting of lower crustal igneous crustal rocks and sedimentary sources, and were formed in a post-collisional setting related to the convergence of peri-Gondwana terranes and Iranian continental fragments.
Article
Geosciences, Multidisciplinary
Min Gao, Zhen-Jie Zhang, Qiu-Ming Cheng, Djordje Grujic
Summary: The Huai'an Complex in the North China Craton consists of TTG gneisses and granite intrusive bodies. Zircon U-Pb ages reveal three episodes of magmatism from 2.6-2.3 Ga, 2.0-1.7 Ga, and similar ages around 2.3-2.0 Ga, indicating different magma sources. The complex underwent crustal growth and reworking stages from 3.1-2.5 Ga to 1.95-1.7 Ga, with tectonic processes of compression-extension-compression during 2.6-1.7 Ga.
Article
Geosciences, Multidisciplinary
Zipei Guo, Haibo Zou
Summary: Young zircons from 3 Holocene volcanoes in the Tengchong volcanic field, SE Tibet, were studied to investigate magma evolution processes and conditions for high-K calc-alkaline volcanic rocks in a post-collisional setting. The study found that zircon Hf content and Yb/Sm ratio increase while zircon Eu anomaly and Th/U ratio decrease during magma cooling, indicating fractional crystallization. Moreover, the increasing zircon Hf isotope ratio (eHf values) with decreasing zircon Ti content and falling temperature suggests the incorporation of high eHf juvenile materials in the crystallizing zircons. Negative correlations between zircon eHf and zircon 818O support open-system magma evolution. The average Eu anomalies in zircons indicate a crustal thickness of 40.7 ± 6.8 km, consistent with geophysical measurements.
GEOSCIENCE FRONTIERS
(2023)
Article
Geosciences, Multidisciplinary
Zipei Guo, Haibo Zou
Summary: This study analyzed the trace element chemistry and Hf-O isotope compositions of young zircons from three volcanoes in the Tengchong volcanic field, China. The results provide insights into magma evolution processes and conditions for high-K calc-alkaline volcanic rocks. The findings suggest that fractional crystallization of plagioclase and zircon occurred during magma cooling, and the involvement of high eHf and low 818O juvenile crustal materials during shallow magma evolution.
GEOSCIENCE FRONTIERS
(2023)
Article
Geology
Arlin B. Fonseca-Martinez, Alexander Iriondo, Scott E. K. Bennett, Fred W. McDowell, Carlos Ortega-Obregon
Summary: This study presents U-Pb zircon ages and Lu-Hf zircon isotope data for Cretaceous-Paleocene plutonic rocks in northwestern Mexico. The results show slower migration rates of the continental arc and the importance of Hf isotope characteristics in constraining the pre-Cretaceous basement configuration.
INTERNATIONAL GEOLOGY REVIEW
(2023)
Article
Geosciences, Multidisciplinary
Victor Kovach, Ivan Kozakov, Alfred Kroener, Ekaterina Salnikova, Kuo-Lung Wang, Hao-Yang Lee, Julia Plotkina, Boris Gorokhovsky, Elena Adamskaya, Elena Tolmacheva, Lidiya Shpakovich
Summary: This study presents new geological, geochronological, geochemical, and Nd-Hf isotopic data for the Melange Zone within the Zavkhan terrane in Mongolia and discusses the terrane structure, early Neoproterozoic continental crust growth, and microcontinent formation in the north-central part of the Central Asian Orogenic Belt. The findings imply that the Zavkhan terrane is a composite terrane consisting of different complexes separated by a Melange Zone.
Article
Geosciences, Multidisciplinary
C. J. Spencer, M. Danisik, H. Ito, C. Hoiland, S. Tapster, H. Jeon, B. McDonald, N. J. Evans
GEOPHYSICAL RESEARCH LETTERS
(2019)
Article
Geosciences, Multidisciplinary
Nicholas J. Gardiner, David Wacey, Christopher L. Kirkland, Tim E. Johnson, Heejin Jeon
PRECAMBRIAN RESEARCH
(2019)
Article
Geochemistry & Geophysics
Janaina N. Avila, Trevor R. Ireland, Peter Holden, Peter Lanc, Andrew Latimore, Norm Schram, John Foster, Ian S. Williams, Liane Loiselle, Bin Fu
GEOSTANDARDS AND GEOANALYTICAL RESEARCH
(2020)
Article
Geology
Li Tang, Xin-Kai Hu, M. Santosh, Shou-Ting Zhang, Christopher J. Spencer, Heejin Jeon, Yu Zhao, Hua-Wen Cao
ORE GEOLOGY REVIEWS
(2019)
Article
Geology
Siyu Liu, Rui Wang, Heejin Jeon, Zengqian Hou, Qingwen Xue, Limin Zhou, Shoubo Chen, Zhongli Zhang, Binbin Xi
ORE GEOLOGY REVIEWS
(2020)
Article
Geochemistry & Geophysics
Raphael J. Baumgartner, Stefano Caruso, Marco L. Fiorentini, Martin J. Van Kranendonk, Laure Martin, Heejin Jeon, Anais Pages, David Wacey
Article
Geochemistry & Geophysics
Rongfeng Ge, Simon A. Wilde, Anthony I. S. Kemp, Heejin Jeon, Laure A. J. Martin, Wenbin Zhu, Hailin Wu
EARTH AND PLANETARY SCIENCE LETTERS
(2020)
Article
Geology
Xu Zheng, Xiang Sun, Qiang Li, Heejin Jeon, Tian-Cheng Zhou
ORE GEOLOGY REVIEWS
(2020)
Article
Multidisciplinary Sciences
Keyron Hickman-Lewis, Barbara Cavalazzi, Stephanie Sorieul, Pascale Gautret, Frederic Foucher, Martin J. Whitehouse, Heejin Jeon, Thomas Georgelin, Charles S. Cockell, Frances Westall
SCIENTIFIC REPORTS
(2020)
Article
Geochemistry & Geophysics
Andrew G. Tomkins, Sarah L. Alkemade, Sophie E. Nutku, Natasha R. Stephen, Melanie A. Finch, Heejin Jeon
GEOCHIMICA ET COSMOCHIMICA ACTA
(2020)
Article
Geochemistry & Geophysics
Gregory H. Poole, Anthony I. S. Kemp, Steffen G. Hagemann, Marco L. Fiorentini, Heejin Jeon, Ian S. Williams, Eduardo O. Zappettini, Nora A. Rubinstein
CONTRIBUTIONS TO MINERALOGY AND PETROLOGY
(2020)
Article
Geology
Xin-Kai Hu, Li Tang, Shou-Ting Zhang, M. Santosh, Li Sun, Christopher J. Spencer, Heejin Jeon, Yu Zhao, Dan-Feng Huang
ORE GEOLOGY REVIEWS
(2020)
Article
Geochemistry & Geophysics
Stanislaw Z. Mikulski, Ian S. Williams, Holly J. Stein, Jan Wierchowiec
Article
Geochemistry & Geophysics
Jack Gillespie, Alexander A. Nemchin, Peter D. Kinny, Laure Martin, Matvei Aleshin, Malcolm P. Roberts, Trevor R. Ireland, Martin J. Whitehouse, Heejin Jeon, Aaron J. Cavosie, Christopher L. Kirkland
Summary: A SIMS analytical method for in situ Sr isotope analysis of apatite mineral was developed with high spatial resolution and low sample consumption. Compared to existing LA-MC-ICP-MS methods, the SIMS method offers advantages of high mass resolution and elimination of problematic interferences, making it particularly useful for analyzing small or valuable mineral targets.
Meeting Abstract
Anthropology
Tanya M. Smith, Christine Austin, Daniel R. Green, Renaud Joannes-Boyau, Shara Bailey, Dani Dumitriu, Stewart Fallon, Rainer Grun, Hannah F. James, Marie-Helene Moncel, Ian S. Williams, Rachel Wood, Manish Arora
AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY
(2019)
Article
Geochemistry & Geophysics
Zhen-Min Ge, Xiao-Long Huang, Wei Xie, Tobias W. Hofig, Fan Yang, Yang Yu, S. Khogenkumar Singh
Summary: The mantle source composition of the nascent oceanic crust in the central part of the Gulf of California has been investigated using basaltic glass samples. These samples show trace element patterns similar to enriched mid-ocean ridge basalts, suggesting that the nascent oceanic crust in the Guaymas Basin might be generated through partial melting of a depleted mantle source metasomatized by subducted slab materials.
Article
Geochemistry & Geophysics
Jean-Michel Brazier, Katja E. Goetschl, Martin Dietzel, Vasileios Mavromatis
Summary: This study estimated the distribution coefficient of Zn2+ between calcite/aragonite and reactive fluids and found that the growth rate strongly influences D-Zn(2+) in both minerals. Additionally, a linear correlation was found between D-Zn(2+) and the saturation degree of the reactive fluid.
Article
Geochemistry & Geophysics
Ming Lei, Michele Lustrino, Jifeng Xu, Zhiqiang Kang, Zhengfu Guo, Jianlin Chen
Summary: This study presents a comprehensive geochronological, mineralogical, and geochemical analysis of olivine leucitites in the Maiga area of southern Tibet, suggesting that these rocks originate from a carbonated peridotite mantle source and highlighting the possibility of carbonates being recycled deep into the mantle during continental subduction.
Article
Geochemistry & Geophysics
Yuntao Ye, Xiaomei Wang, Huajian Wang, Haifeng Fan, Zhigang Chen, Qingjun Guo, Ziteng Wang, Chaodong Wu, Donald E. Canfield, Shuichang Zhang
Summary: Phosphorus is an essential element for life and its cycle in the ocean is closely connected with the carbon and oxygen cycles. The study of phosphate oxygen isotopes can provide insights into various reactions related to phosphorus. By analyzing carbonate fluorapatite samples from the Mesoproterozoic Era in North China, it was found that the oxygen isotope values were lower compared to modern samples, indicating a warmer climate during that time period and a potential reason for the scarcity of phosphorite.
Article
Geochemistry & Geophysics
Vincent Busigny, Oanez Lebeau, Didier Jezeduel, Carine Chaduteau, Sean Crowe, Magali Ader
Summary: This study conducted high-precision Mo isotope research on hydrothermal metal sulfides from a porphyry copper deposit in Southwest China and found that different stages of mineralization have distinct Mo isotope compositions, providing valuable insights into the behavior of Mo isotopes in magmatic-hydrothermal systems.
Article
Geochemistry & Geophysics
Min Ji, Xiao-Ying Gao, Yong-Fei Zheng, Bing Gong
Summary: The study examines the anatectic mechanisms in the Himalayan orogen, finding that pressure and temperature control the reaction, while water content mainly affects the solid-phase composition. Dehydration and hydration melting likely occur at different depths in the crust. This research provides important insights into the melting processes in collisional orogens.