Geological Journal最新文献

{"title":"Effects of Waste Generation on the Load Capacity Factor: A Novel Waste Management Assessment for OECD Countries","authors":"Ugur Korkut Pata,&nbsp;Selin Karlilar Pata,&nbsp;Sinan Erdogan","doi":"10.1002/gj.5065","DOIUrl":"https://doi.org/10.1002/gj.5065","url":null,"abstract":"<div>\u0000 \u0000 <p>The increase in global waste generation is an important issue directly addressed in the Sustainable Development Goal (SDG)-12 and OECD countries produce large amounts of waste. In this context, the study examines the influence of waste generated and recycled on the load capacity factor (biocapacity/ecological footprint) in 28 OECD countries from 2000 to 2021 using novel panel data approaches. The study employs augmented mean group and novel half-panel jackknife estimation approaches within the Load Capacity Curve (LCC) hypothesis and confirms the LCC for OECD nations. In addition, the long-term prediction results illustrate that waste generation increases environmental destruction, while waste recycled supports the increase in the load capacity factor. The study recommends policymakers in OECD countries to support economic growth and increase investment in waste recycling technologies to achieve SDG-12.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"59 12","pages":"3203-3213"},"PeriodicalIF":1.4,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Geochemistry of Mafic Rocks From the Nagrota–Kathindi Section, Himachal Pradesh, Northwestern Himalaya: A Probable Example of Plume–Lithosphere Interaction","authors":"M. Rajanikanta Singh,&nbsp;Paramjeet Singh,&nbsp;Pratap C. Sethy,&nbsp;A. Krishnakanta Singh","doi":"10.1002/gj.5058","DOIUrl":"https://doi.org/10.1002/gj.5058","url":null,"abstract":"<div>\u0000 \u0000 <p>The Northwest Himalayan region has a record of several phases of mafic magmatic activity spanning from Precambrian to Cenozoic in a dynamic tectonic setting. Here, we studied detailed petrography and new whole-rock geochemistry of mafic volcanic and dykes from the Nagrota–Kathindi Section (NKS), Himachal region of the NW Himalaya, to understand the petrogenesis and possible tectonic setting. Both rock types have comparable mineralogical compositions (clinopyroxene + plagioclase + actinolite-tremolite + chlorite + iron oxides ± hornblende ± epidote ± quartz ± carbonates) overprinted by greenschist to lower amphibolite facies metamorphism. The mafic volcanic and dykes of NKS exhibit subalkaline basalts to basaltic andesites and a typical tholeiite compositional character. The chondrite-normalized rare earth element pattern exhibits similar LREE-enrichment and strong HREE-fractionation, whereas primitive mantle-normalized multi-element patterns show pronounced LILE-enrichment of Rb, Ba, Th, LREE, and HFSE depletion of Nb, K, P, and Ti. The Zr–Y–Nb–Th relationships indicate that both rock types were derived from the plume source, whereas low Nb/La (&lt; 1), similar high large-ion lithophile element concentrations, and pronounced negative Nb, Zr, P, and Ti anomalies suggest that components other than mantle plume must have been involved in the generation and evolution of both rock types, that is, most likely plume and subcontinental lithosphere mantle (SCLM) interaction. The genesis of parent magma for the NKS volcanic and dykes was derived by 4%–6% and 10%–20% partial melting from the spinel + garnet lherzolite stability field. The majority of the studied samples correspond to spinel + garnet peridotite melting on (Gd/Yb)<i>\u0000 _N\u0000 </i> versus CaO/Al₂O₃ diagram, thereby corroborating residual garnet in the mantle restite. All the basalts and dykes from the NK section did erupt/intrude in an intracontinental rift setting based on geochemical discrimination. The key petro-tectonic processes attributed to the formation of these rocks are as follows: (i) the melting of the ascending plume by adiabatic decompression; (ii) the partial melting of this plume–SCLM source in the melting regime, which produces basaltic magma with a tholeiitic composition; and (iii) the release of heat that provides the thermal condition for melting of SCLM and interaction between upwelling mantle plume and subduction metasomatized SCLM.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"59 12","pages":"3175-3202"},"PeriodicalIF":1.4,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Are Biofuel Technologies a Revolution for Environmental Sustainability in the United States?","authors":"Selin Karlilar Pata,&nbsp;Ugur Korkut Pata","doi":"10.1002/gj.5057","DOIUrl":"https://doi.org/10.1002/gj.5057","url":null,"abstract":"<div>\u0000 \u0000 <p>Many countries accelerate climate change by using fossil fuels like coal, gas, and petroleum to power their energy production systems and boost economic growth, which in turn releases large amounts of greenhouse gases (GHG). Recently, biofuels (BIO) have gained significant global attention for their potential to decarbonize the economy and reduce dependence on petroleum by replacing fossil fuels. This study examines the effect of biofuel consumption and innovation in non-fossil fuels on the load capacity factor (LCF) in the United States spanning from 1981 to 2020. The empirical outcomes verify the validity of the load capacity curve (LCC) theory. In addition, biofuel consumption has a favourable impact on LCF. The findings further demonstrate that innovation in non-fossil fuel technologies has no significant impact on the LCF. Based on these outcomes, the US government should increase the share of BIO as an energy component in the energy mix to replace fossil fuels. As a result, BIO have significant potential for the United States to meet its low-carbon goal by efficiently reducing GHG.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"59 12","pages":"3151-3160"},"PeriodicalIF":1.4,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Petrogenesis of Mafic Dykes in the Beishan Orogen and Its Implications for Subduction of Liuyuan Ocean: Constraints From Geochemistry and Sr-Nd-Hf Isotopes","authors":"Ren Peng,&nbsp;Guishan Zhang,&nbsp;Zhi-Qi Zhao","doi":"10.1002/gj.5061","DOIUrl":"https://doi.org/10.1002/gj.5061","url":null,"abstract":"<div>\u0000 \u0000 <p>Subduction zones are the primary locations of material exchange between the crust and mantle, and thus, arc igneous rocks are extensively examined to explore crust–mantle interactions during oceanic subduction. In this study, the Sr-Nd-Hf isotopic compositions and elemental characteristics of the Yinwaxia mafic dykes from the Shibanshan–Huaniushan arc in the southern Beishan Orogen were investigated to determine their petrogenesis and explore crust–mantle interactions during the subduction of the Liuyuan Ocean. The dykes were subdivided into two groups based on their geochemical composition and spatial distribution. Group I dykes in the northern Yinwaxia area possess depleted light rare earth elements and slightly enriched large-ion lithophile elements, indicated by relatively high ratios of Rb/Nb (1.4–82), Ba/Nb (6–408), and Cs/Nb (0.13–2.74), and low ratios of Th/Yb (0.03–0.39), Th/Nb (0.10–0.83), and (La/Yb)_{\u0000 <i>N</i>\u0000} (0.33–1.36). Further isotopic composition study revealed that low values of (⁸⁷Sr/⁸⁶Sr)_{\u0000 <i>i</i>\u0000} (0.7028–0.7052), and high values of <i>ε</i>\u0000 _Nd(<i>t</i>) (4.9–9.1) and <i>ε</i>\u0000 _Hf(<i>t</i>) (13.2–24.0), which suggests that the mantle source of Group I dykes was metasomatized by aqueous fluids. In Group II dykes located in the southern Yinwaxia area, enrichment of light rare-earth elements and large-ion lithophile elements was observed, featuring lower ratios of Rb/Nb (0.5–16.7), Ba/Nb (13–51), and Cs/Nb (0.15–1.56), but higher ratios of Th/Yb (0.25–2.64), Th/Nb (0.19–1.49), and (La/Yb)_{\u0000 <i>N</i>\u0000} (1.09–2.98) compared to Group I. Furthermore, Group II dykes exhibited higher values of (⁸⁷Sr/⁸⁶Sr)_{\u0000 <i>i</i>\u0000} (0.7051–0.7077) and lower <i>ε</i>\u0000 _Nd(<i>t</i>) (−1.7 to +3.8) and <i>ε</i>\u0000 _Hf(<i>t</i>) (3.7–9.4) isotopic compositions, which suggests that the slab fluids involved in their mantle source were dominated by sediment-derived melts. The difference between the mafic dykes from Groups I and II suggests the addition of steadily increasing amounts of sediment-derived melt in their mantle source; moreover, the increased (La/Yb)_{\u0000 <i>N</i>\u0000} ratio and decreased <i>ε</i>\u0000 _Nd(<i>t</i>) with increasing distance from the Liuyuan mélange are records of the spatial evolution of the composition of the slab fluids during the oceanic subduction of Liuyuan Ocean in the early Permian.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"59 12","pages":"3161-3174"},"PeriodicalIF":1.4,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142762591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"RETRACTION: Structural Characteristics and Development Model of Fluid Diapirs Within the Structural Transition Zone, Northern South China Sea","authors":"","doi":"10.1002/gj.5062","DOIUrl":"https://doi.org/10.1002/gj.5062","url":null,"abstract":"<p>RETRACTION: <span>Y. Qin</span>, <span>C. Liu</span>, <span>G. Peng</span>, <span>L. Huang</span>, <span>C. Liang</span>, <span>H. Li</span>, <span>Z. Wu</span> and <span>L. Yang</span>, “ <span>Structural Characteristics and Development Model of Fluid Diapirs Within the Structural Transition Zone, Northern South China Sea</span>,” <i>Geological Journal</i> <span>59</span>, no. <span>7</span> (<span>2024</span>): <span>1906</span>–<span>1923</span>, https://doi.org/10.1002/gj.4968.</p><p>The above article, published online on 28 April 2024 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the authors; the journal Editor-in-Chief, Ian D. Somerville and Yunpeng Dong; and John Wiley &amp; Sons Ltd. The retraction has been agreed as some of the data included within the article was not authorized for publication. Furthermore, the authors are not confident that the fluid diapir labels shown in figure 7 are correct and admit they may be problematic. As a result the editors have decided to retract this article.</p>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"59 10","pages":"2918"},"PeriodicalIF":1.4,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/gj.5062","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142430096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysing Oil Prices Fluctuations, Carbon Emissions and Renewable Energy Trends in Uncovering the Eco-Economic Interplay in China's Trade Liberalization","authors":"Irfan Ullah,&nbsp;Andrea Gatto,&nbsp;Magdalena Radulescu,&nbsp;Buhari Doğan,&nbsp;Abdelmohsen A. Nassani,&nbsp;Kamel Si Mohammed","doi":"10.1002/gj.5055","DOIUrl":"https://doi.org/10.1002/gj.5055","url":null,"abstract":"<div>\u0000 \u0000 <p>This study evaluates the factors contributing to carbon emissions in China between 2002 and 2021, considering the impact of GDP growth, shocks in oil prices, trade liberalization and energy use. Using the dynamic simulated ARDL (SARDL) model, we indicate a long-term link between trade liberalization, oil prices (WTI) shocks, GDP growth, energy use and CO₂. The novel SARDL revealed a direct relationship between trade liberalization and CO₂ in China in the long term. However, the results show a negative impact of WTI shocks on CO₂ emissions. The study suggests that renewable energy (RE) significantly and negatively affects China's CO₂ emissions. In addition, the findings conclude that, in the case of China, GDP has an insignificant long-run relationship with CO₂ emissions. The outcomes provide valuable insights for policymakers, researchers and industry stakeholders to enhance RE and promote sustainable energy practices.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"59 11","pages":"3109-3122"},"PeriodicalIF":1.4,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142574037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hf Isotopes and Detrital Zircon Geochronology of the Silasia Formation, Midyan Terrane, Northwestern Arabian Shield: An Investigation of the Provenance History","authors":"Osama K. Dessouky,&nbsp;Kamal A. Ali,&nbsp;Mahmoud M. Hassan","doi":"10.1002/gj.5053","DOIUrl":"10.1002/gj.5053","url":null,"abstract":"<div>\u0000 \u0000 <p>U–Pb ages and Hf isotopic data from detrital zircon of the Silasia Formation in the Midyan Terrane record evidence for the provenance and tectonic evolution of the northern Arabian Shield. Given that the youngest acknowledged age of these detritus sediments is 735 ± 13 Ma, it is likely that the Silasia Formation was deposited during the closure of the Mozambique Ocean. The U–Pb ages define a major Mesoproterozoic peak, with two minor peaks of Neoproterozoic and Archean age. Combined with zircon Hf isotopic compositions, the sedimentary detritus of the Silasia Formation was mainly derived from source rocks formed during the Grenville Orogeny during the assembly of Rodinia, with a minor contribution from Archean and Paleoproterozoic crustal material, in addition to a limited arc-basement supply related to the early Mozambique Ocean. The youngest Concordia age of 735 ± 13 Ma with highly variable εHf_(t) values (11 to −35) indicates a complex mixture of sources from juvenile to extremely ancient. The Concordia ages at 1113 ± 11 and 1046 ± 10 Ma have positive hafnium isotope signatures (up to +10.45) that are consistent with juvenile source rocks formed during the Grenville Orogeny. Several detrital zircons with ages of 2622 ± 22 Ma and 2690 ± 7 Ma are similar to those reported in Yemen, whereas 1818 ± 19 Ma, 2071 ± 8 Ma and 2001 ± 19 Ma Paleoproterozoic ages are similar to dated outcrops in the Khida terrane in the eastern Arabian Shield.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"59 11","pages":"3092-3108"},"PeriodicalIF":1.4,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142215343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ramp Depositional Model in an Intracratonic Basin: The Cambrian Sedimentary Successions in Yanshan Area, North China","authors":"Shilong Kang,&nbsp;Longyi Shao,&nbsp;Santanu Banerjee,&nbsp;Shuai Wang,&nbsp;Tracy Frank","doi":"10.1002/gj.5056","DOIUrl":"10.1002/gj.5056","url":null,"abstract":"<div>\u0000 \u0000 <p>The mechanisms for the deposition of the Cambrian carbonate sedimentary successions remain controversial. The carbonate-dominated successions (Stage 3 to Stage 10) are well developed in the North China Craton and they are commonly thought to represent a platform setting because of the flat top. In this study, we propose a new scenarioi, that the Cambrian successions in North China are more likely a carbonate ramp rather than a platform. Detailed sedimentological investigation for the Cambrian rocks in the Yanshan area (Stage 4 to Stage 10) reveals a total of 21 lithofacies which can be grouped into 7 facies associations, including sabkha and mixed tidal flat, shoal, carbonate tidal flat, tidal flat on shoal, protected lagoon, mid-ramp and outer ramp to shelf basin. Sequence stratigraphy analysis of the Cambrian in the Yanshan area reveals nine third-order depositional sequences, which shows an overall second-order transgression. A number of sedimentary characteristics, including the gentle depositional slope, abundant open marine deposits, scattered shoals and microbial mounds, absence of slump or gravity flow sediment, domination of subtidal facies cycles and widespread deposits that formed below the storm wave-base, indicate that the Cambrian sediments in the Yanshan area were deposited in an intracratonic carbonate ramp depositional system. This intracratonic carbonate ramp includes inner ramp, mid-ramp, outer ramp and shelf basin facies belts, with the inner ramp exhibiting sub-facies corresponding to tidal flat, protected lagoon and shoal sub-facies. Sequence stratigraphy analysis indicates that relative sea-level changes, corresponding to these nine third-order sequences, show synchronous with the global sea-level change across the studied sections. This consistency implies that eustatic sea-level changes could have been a major factor for the sequence stacking patterns in the Yanshan Area.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"59 12","pages":"3123-3150"},"PeriodicalIF":1.4,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142215344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Depositional Age and Provenance of the Erlangping Group in the Tianshui Area: Implication for Early Palaeozoic Evolution of the Erlangping Back‐Arc Basin","authors":"Yukun Qi, Jiaopeng Sun, Yunpeng Dong, Weidong He, Zonglin Li, Lei He, Kai Ye, Zhigang Wang, Junxiang Zhang, Teng Wang","doi":"10.1002/gj.5051","DOIUrl":"https://doi.org/10.1002/gj.5051","url":null,"abstract":"The Erlangping back‐arc Basin separated the North Qinling Arc Terrane (NQAT) from the North China Block during Cambrian‐Ordovician. An enhanced knowledge on its evolutionary history would greatly improve our understanding on tectonic evolution of the Proto‐Tethys Ocean. In this study, we undertook sandstone petrologic and detrital zircon U–Pb geochronologic investigations on the Erlangping Group around the Tianshui Area. The Erlangping Group meta‐sedimentary rocks yielded two general types of zircon U–Pb age patterns. The first type is composed mostly of Neoproterozoic ages with a major age peak at ca. 900 Ma and has a youngest age population peaking at ca. 440 Ma. The second type is dominated by ca. 500–400 Ma components with a youngest age peak of ca. 380 Ma. The two contrasting age patterns and youngest peak ages, along with known ages of volcanic interbeds and intruded granites, allow us to subdivide the Erlangping Group to a Silurian unit and a Devonian unit, which are both stratigraphic higher than the Cambrian‐Ordovician ophiolitic unit of the Erlangping Group. In comparison with age spectra of coeval sediments in the nearby tectonic units, we found that sources of the Erlangping Group were from the Neoproterozoic NQAT basement rocks and associated Early Palaeozoic volcanic and plutonic rocks. The increasing numbers of younger zircons hint at a significant structural unroofing of the NQAT at the Silurian‐Devonian transition before having been subjected to greenschist‐facies metamorphism in the Devonian in response to the elimination of the Shangdan Ocean.","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"18 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142215346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tracing subducted oceanic slabs in the mantle by using molybdenum isotopes: A case study of intraplate basalts from Northeast China","authors":"Qifang Zheng,&nbsp;Xiuhe Gao,&nbsp;Zhenyu Fan,&nbsp;Guangyu He,&nbsp;Qian Wang,&nbsp;Jane Fitton,&nbsp;Daoqing Zhou","doi":"10.1002/gj.5030","DOIUrl":"10.1002/gj.5030","url":null,"abstract":"<p>Determining subduction-related processes is crucial for understanding lithological heterogeneity, as substantial quantities of slabs are recycled into the mantle. Molybdenum isotopes are valuable for distinguishing sources materials due to the significant isotope differences between the crust and the mantle. In this study, we systematically investigate Mo isotopes in a suite of well-characterized continental basalts from Keluo and Halaha-Chaoer, located in Northeast China. The δ⁹⁸Mo values of Keluo range from −0.41 to −0.23‰, with an average of −0.34‰, while Halaha-Chaoer samples ranged from −0.18 to −0.12‰, with an average of −0.15‰. The δ⁹⁸Mo values of Keluo basalts are lighter than the mean value of fresh oceanic basalts (−0.21‰), whereas those of Halaha-Chaoer basalts are similar to oceanic basalts. Combined with other geochemical indications (LOI, Ce/Pb, La/Yb and so on), the Mo isotopic variations cannot be attributed to chemical weathering, continental crust contamination or magmatic processes. Instead, the δ⁹⁸Mo variations in this study are explained by the incorporation of different oceanic crustal materials into the magma sources. Correlations of δ⁹⁸Mo with Ba/Th, Th/U, ¹⁴³Nd/¹⁴⁴Nd indicated that both sediment and altered oceanic crust have significantly influenced these variations. This study demonstrates the potential of Mo isotopes to distinguish different types of recycled oceanic crust materials.</p>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"59 11","pages":"2919-2927"},"PeriodicalIF":1.4,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142215345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}