Earth and Planetary Science Letters最新文献

{"title":"The inventory of OH and H2O in the non-polar regions of the Moon","authors":"Wen Yu ,&nbsp;Hao Yan ,&nbsp;Hong Tang ,&nbsp;Xiongyao Li ,&nbsp;Yu Wei ,&nbsp;Huiming Bao ,&nbsp;Chuanjiao Zhou ,&nbsp;Bing Mo ,&nbsp;Yanxue Wu ,&nbsp;Haiyang Luo ,&nbsp;Jialong Hao ,&nbsp;Ruiying Li ,&nbsp;Guangfei Wei ,&nbsp;Xiaojia Zeng ,&nbsp;Jianzhong Liu","doi":"10.1016/j.epsl.2025.119263","DOIUrl":"10.1016/j.epsl.2025.119263","url":null,"abstract":"<div><div>The image of a bone-dry surface in the Moon's non-polar regions impinged by the Apollo missions was changed by the detection of widespread absorption near 3 µm in 2009, interpreted as a signature of hydration. However, debates persist on the relative contribution of molecular water (H₂O) and other hydroxyl (OH) compounds to this hydration feature, as well as the cause of the potential temperature-dependence of the OH/H₂O abundance. Resolving these debates will help to estimate the inventory of water on the Moon, a crucial resource for future space explorations. In this study, we measured the abundance and isotope composition of hydrogen within the outermost micron of Chang'e-5 soil grains, collected from the lunar surface and from a depth of 1 m. These measurements, combined with our laboratory simulation experiments, demonstrate that solar-wind-induced OH can be thermally retained in lunar regolith, with an abundance of approximately 48–95 ppm H₂O equivalent. This abundance exhibits small latitude dependence and no diurnal variation. By integrating our results with published remote sensing data, we propose that a high amount of molecular water (∼360 ± 200 ppm H₂O) exists in the subsurface layer of the Moon's non-polar regions. The migration of this H₂O accounts for the observed latitude and diurnal variations in 3 µm band intensity. The inventory of OH and H₂O proposed in this study reconciles the seemingly conflicting observations from various instruments, including infrared/ultraviolet spectroscopies and the Neutral Mass Spectrometer (NMS). Our interpretation of the distribution and dynamics of lunar hydration offers new insights for future lunar research and space missions.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"655 ","pages":"Article 119263"},"PeriodicalIF":4.8,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transcrustal, volatile-charged silicic melts revealed by zircon-hosted melt inclusions","authors":"Damaris Butters ,&nbsp;Jon Blundy ,&nbsp;Brian Tattitch ,&nbsp;Chris Hawkesworth","doi":"10.1016/j.epsl.2025.119252","DOIUrl":"10.1016/j.epsl.2025.119252","url":null,"abstract":"<div><div>The volatile contents of silicic crustal magmas inform models for volcanism, crustal growth, degassing behaviour, and hydrothermal ore formation. Volatile saturation pressures of phenocryst-hosted melt inclusions are generally restricted to late-stage, shallow magmas that have undergone significant, ascent-driven degassing of H₂O, CO₂ and SO₂. As an alternative approach, we analyse the volatile contents of rhyolitic melt inclusions (10–30 µm diameter) in the accessory mineral zircon. We have developed a technique for the reheating of microcrystalline melt inclusions at elevated temperature (950 °C) and pressure (100 MPa) prior to analysis, to form homogeneous glassy inclusions without fracturing the host zircon. Analyses of volatiles were performed using secondary ion mass spectrometry and calculated volatile saturation pressures were used to obtain minimum melt inclusion trapping depths. Our results reveal that zircons often grow over an exceptional crustal depth range; many zircons trap melts deeper than 20 km. Significantly, the deepest melt inclusions from porphyry copper deposit-related magmas have high CO₂ contents (up to 4000 ppm), indicating CO₂-rich sources (fluid molar fraction of CO₂ up to 0.95). Zircon crystallisation and the trapping of melt inclusions testify to silicic melt generation over the entire crustal depth range. Deep crustal zircons can be transported to shallow levels by silicic melts percolating through transcrustal mush systems and/or in rapidly ascending volatile-charged magmas.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"655 ","pages":"Article 119252"},"PeriodicalIF":4.8,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Late Cenozoic intensification of deoxygenation in the Pacific Ocean","authors":"Katrina Nilsson-Kerr ,&nbsp;Babette A.A. Hoogakker ,&nbsp;Dharma A. Reyes Macaya ,&nbsp;Helge A. Winkelbauer ,&nbsp;Elliott Hamilton ,&nbsp;Simon Chenery ,&nbsp;Catherine V Davis ,&nbsp;Melanie J. Leng","doi":"10.1016/j.epsl.2025.119253","DOIUrl":"10.1016/j.epsl.2025.119253","url":null,"abstract":"<div><div>The Pacific Ocean hosts the largest expanse of oxygen depleted waters owing to a combination of factors influencing oxygen supply and consumption, with consequences for biogeochemical cycling. However, understanding of the long-term evolution of the Pacific Oxygen Deficient Zone remains poorly constrained. Here we apply the Iodine to Calcium (I/Ca) ratio in planktic foraminifera, in combination with the absence/presence of <em>Globorotaloides hexagonus</em>, from four tropical Pacific Ocean sites to reconstruct oceanic oxygen across the late Cenozoic. To validate the application of I/Ca, we supplement existing I/Ca calibration datasets by expanding their spatial coverage with additional core-top measurements. Our downcore results, combined with other lines of evidence, indicate the emergence and establishment of low oxygen waters from the late Miocene-Pliocene. The decline in Pacific Ocean oxygen accompanies large-scale climate and tectonic changes and likely impacted marine carbon cycling.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"655 ","pages":"Article 119253"},"PeriodicalIF":4.8,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Provenance of North Indian geoid ridge and its implication to collision evolution between India and Eurasia","authors":"Peilong Yan ,&nbsp;Nan Zhang ,&nbsp;Xi Liu ,&nbsp;Bo Wan","doi":"10.1016/j.epsl.2025.119248","DOIUrl":"10.1016/j.epsl.2025.119248","url":null,"abstract":"<div><div>The geoid minima in the Indian Ocean and Siberia are separated by the North Indian Geoid Ridge (NIGR), yet the origin of the NIGR remains inadequately understood. Spherical harmonic analysis and geoid kernels indicate that the NIGR has wavelengths of degrees 7–10 and is mainly driven by density anomalies of similar degrees within the mantle. By employing numerical geoid modelling with four different tomography-derived density structures, we determined that abundant high-density anomalies in the mantle transition zone beneath North India and the Himalayas are responsible for the NIGR. Additionally, two contrasting tectonic evolutions of the India-Tibet collision, namely subduction roll-back scenario through the collision vs. lithospheric dripping scenario through the collision, are evaluated through geoid calculation. The former scenario suggests abundant high-density structures in the transition zone, capable of generating a well-constrained NIGR, while the latter does not support this. Consequently, we consider the Indian lithosphere subduction roll-back to be the more plausible evolving scenario.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"655 ","pages":"Article 119248"},"PeriodicalIF":4.8,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lower crustal thickening drives active uplift in Northern Tibet","authors":"Shaozhuo Liu ,&nbsp;Xiwei Xu ,&nbsp;Jean-Mathieu Nocquet ,&nbsp;Guihua Chen ,&nbsp;Xibin Tan ,&nbsp;Sigurjón Jónsson ,&nbsp;Yann Klinger","doi":"10.1016/j.epsl.2025.119245","DOIUrl":"10.1016/j.epsl.2025.119245","url":null,"abstract":"<div><div>Mountains in collisional orogens generally grow as crustal rocks are advected over low-angle thrust faults, suggesting a close relationship between tectonic uplift and upper crustal shortening. For example, the Himalayas, hosting large-scale thrust fault systems, undergoes ∼15–20 mm/year shortening and concomitant ∼5 mm/year active uplift. However, geodetic observations reveal an active uplift of 1–2 mm/year across the East Kunlun Shan mountain range, the northern margin of the Tibetan Plateau, where no active thrust fault has been identified. This active uplift is too fast to be explained by the limited horizontal shortening of at most 1.0 ± 0.2 mm/year. After quantifying and correcting for contributions arising from erosion, (de)glaciation, and recent earthquakes, the uplift rate across the East Kunlun Shan still amounts to 1.0 ± 0.5 mm/year. Our simulations show that mantle processes cannot explain the GPS-observed uplift. We find that lower crustal thickening, rather than upper crustal shortening alone, drives the ongoing uplift across the East Kunlun Shan, hence challenging our current views on mountain range dynamics.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"655 ","pages":"Article 119245"},"PeriodicalIF":4.8,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MgO miscibility in liquid iron","authors":"Leslie Insixiengmay ,&nbsp;Lars Stixrude","doi":"10.1016/j.epsl.2025.119242","DOIUrl":"10.1016/j.epsl.2025.119242","url":null,"abstract":"<div><div>We explore phase equilibria on the MgO-Fe join as a prototype of lithophile-core interaction in terrestrial planets. Our density functional theory simulations are based on a phase coexistence method: fluids of initially pure MgO and Fe compositions are allowed to establish a dynamic equilibrium across a near-planar interface. Methods for analyzing the composition and other properties of the two coexisting phases show that MgO behaves as a component, with indistinguishable Mg and O concentrations in Fe-rich and oxide-rich phases. The phase diagram is well described as that of a symmetric regular solution, a picture confirmed by independent one-phase determinations of the enthalpy, entropy, and volume of mixing. The critical temperature, above which there is complete miscibility across the MgO-Fe join is 7000 K at 68 GPa, and 9000 K and 172 GPa. The rate of MgO exsolution from the Fe-rich liquid on cooling is similar to that found in previous experimental studies, and is too small to drive a dynamo.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"654 ","pages":"Article 119242"},"PeriodicalIF":4.8,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143300330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Evolution of the subcontinental lithospheric mantle beneath accretionary orogens: Implications for the stabilization of cratons","authors":"Yuchen Liu ,&nbsp;Gongcheng Tian ,&nbsp;Yong Xu ,&nbsp;James M. Scott ,&nbsp;D．Graham Pearson ,&nbsp;Jingao Liu","doi":"10.1016/j.epsl.2025.119244","DOIUrl":"10.1016/j.epsl.2025.119244","url":null,"abstract":"<div><div>Thick lithospheric roots characterized by low density and high viscosity are crucial for the long-term stability of cratons. Examining the thick lithospheric roots currently developing in young continental terranes provides valuable insights into the processes driving cratonic stabilization. This study presents a comprehensive elemental and Re-Os isotopic investigation of 103 mantle peridotite xenoliths from the western Xing'an Mongolia Orogenic Belt (XMOB), a component of the Central Asian Orogenic Belt. Most peridotites experienced low to moderate degrees of polybaric fractional melt extraction (4–25%), while hydrous melting (∼30 %) was superimposed on a few refractory residues with low densities similar to cratonic counterparts. Geothermobarometry and geophysical observations indicate that the lithospheric root beneath the western XMOB is up to 60 km thicker than at its initial stage. The peridotites with Mesoproterozoic to Phanerozoic Re-depletion Os model ages match temporally with overlying crust, while those with Archean model ages represent mantle fragments derived from either heterogeneous asthenosphere or adjacent Archean cratonic roots. During the Mesoproterozoic to Neoproterozoic, this mixture of ancient fragments and ambient mantle underwent decompressional melting at spreading centers. With further hydrous re-melting and thickening, these newly formed blocks were assembled during a major Phanerozoic accretionary orogeny. This model is interpreted to indicate that since the onset of plate tectonics, accretionary orogenesis has contributed to both lithospheric thickening and enhancement of lithospheric mantle compositional buoyancy and viscosity, thereby laying a structural foundation for the stabilization of potential cratons.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"654 ","pages":"Article 119244"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143300331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Uphill diffusion of lithium along phosphorus gradients in olivine from mafic layered intrusions","authors":"Chang-Ming Xing ,&nbsp;Christina Yan Wang ,&nbsp;Wei Tan ,&nbsp;Fang-Yue Wang","doi":"10.1016/j.epsl.2024.119182","DOIUrl":"10.1016/j.epsl.2024.119182","url":null,"abstract":"<div><div>Lithium (Li) concentration and Li isotopes of olivine have been widely adopted to decipher the mantle-crust interaction and short-lived magmatic processes in the shallow magma chambers. However, the diffusion behavior of Li in olivine has not yet been fully understood, which may bias the interpretation of Li concentration and Li isotopes observed in natural olivine. In this study, high-resolution elemental mapping (Li, P, Fe, Mn, Ca, Al, and Ni) combined with in situ Li concentration and Li isotope analyses were conducted for olivine grains from two ca. 260 Ma mafic layered intrusions in SW China, to decode the origin of coupled Li-P zoning and multi-mode diffusion of Li in natural olivine. The 2-D elemental maps and compositional profiles reveal complex, coupled Li-P zoning patterns. The Li-P-rich zones contain 3.5 to 6.1 ppm Li and 187 to 776 ppm P, higher than those of Li-P-poor olivine domains that contain 0.7 to 2.8 ppm Li and 29 to 166 ppm P. Particularly, the Li-P-rich zones in each grain commonly have lower <em>δ</em>⁷Li* than that of the Li-P-poor domains, with the maximum fractionation of Li isotopes in a single grain being up to 15‰. Numerical modeling shows that rapid olivine growth can result in variable degrees of Li and P enrichment in concentration and an increase of <em>δ</em>⁷Li* in the Li-P-rich zone of olivine, which is inconsistent with our observations. Instead, the inverse variations of Li concentration and Li isotopic profiles can be well simulated in an uphill diffusion mode of Li along pre-existing sharp P gradients, accompanying by simultaneous coupled and non-coupled diffusion of Li within a single olivine. The large variation of <em>δ</em>⁷Li* is thus interpreted as kinetic fractionation, which may be caused by dehydration of olivine due to exsolution of a fluid phase from the interstitial liquid of a crystal mush. Three distinct Li-P variation trends of olivine are summarized in this study and can be used to distinguish the process of crystal growth from post-crystallization diffusion. Our results should have important bearings on the understanding of complex crystallization and solidification processes of crustal magma chambers.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"651 ","pages":"Article 119182"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143157738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wetted two-grain boundaries in olivine aggregates and seismic velocities in the oceanic upper mantle","authors":"Andrew J. Berry ,&nbsp;Ulrich H. Faul ,&nbsp;Qiheng Yang ,&nbsp;Harri Kokkonen ,&nbsp;Andrew M. Kingston ,&nbsp;Ajay Limaye ,&nbsp;Martin D. de Jonge","doi":"10.1016/j.epsl.2024.119119","DOIUrl":"10.1016/j.epsl.2024.119119","url":null,"abstract":"<div><div>The distribution of basaltic melt between crystals of olivine (Mg_1.8Fe_0.2SiO₄), after equilibration at 1350 °C and 1 GPa for up to 14 days, was investigated by fluorescence tomography. The system is an analogue for low-degree partial melts in the Earth's upper mantle, the connectivity of which controls the rate at which magmas are transported from the source to the surface by porous flow. In fluorescence tomography the distribution of an incompatible element that partitions almost exclusively into the melt can be used to map the distribution of melt. We chose to use Nb (0.7 wt%) because of its high incompatibility and the high energy of its Kα fluorescence, which allowed samples with a thickness of up to 300 μm to be studied. The tomographic reconstructions showed not only melt pockets at four-grain corners and melt channels on three-grain edges, as predicted, but also melt sheets corresponding to wetted two-grain boundaries. The spatial resolution of the method is controlled by the size of the excitation beam (in this case 2–3 μm), but smaller features can be observed and their thickness inferred from the intensity of the fluorescence signal. The melt sheets identified have a thickness of ∼0.5 μm, but there is also evidence for thinner sheets. Better resolution of thin sheets could be achieved by increasing the concentration of Nb in the melt. Fluorescence tomography is an ideal approach for determining the distribution of melt at low melt fractions since only the melt is imaged. The speed of data acquisition opens up the possibility of systematically studying the evolution of melt connectivity as a function of melt fraction. A melt distribution that includes wetted two-grain boundaries has a lower permeability and would be more visible seismically than the expected tubule geometry. The presence of melt can hence explain the significant drop in seismic velocity observed in the oceanic upper mantle.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"651 ","pages":"Article 119119"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Insight into climate and hydrology of the late cretaceous western interior basin from clumped isotope Paleothermometry and strontium isotopes","authors":"Allison N. Curley ,&nbsp;Sierra V. Petersen ,&nbsp;Henry Fricke ,&nbsp;James Gleason","doi":"10.1016/j.epsl.2024.119180","DOIUrl":"10.1016/j.epsl.2024.119180","url":null,"abstract":"<div><div>High sea levels in the Late Cretaceous led to the formation of vast seaways on every continent. These shallow seaways are without modern analogs and many fundamental aspects of their oceanography are poorly understood. In the Campanian (∼83–72 Ma), the Western Interior Seaway (WIS) of North America linked the proto-Gulf of Mexico and Arctic Ocean. Given its shallow depth, freshwater inputs to the WIS could have had a greater influence on conditions in the seaway compared to a deeper ocean and would have become increasingly important as the WIS regressed through the Maastrichtian. The isotopic composition of mollusk shells in freshwater facies can help constrain the composition and temperature of these inputs, improving our understanding of surface temperature, hydrological dynamics, and paleoelevation. Here we measure Δ₄₇ temperature, δ¹⁸O_water, and ⁸⁷Sr/⁸⁶Sr in late Campanian (∼75 Ma) unionid bivalve shells from fluvial and pond deposits near the western shore of the WIS (∼42°N-56°N). Sample mean surface water temperatures spanned 22–44 °C, with a mean of 30 ± 2.7 °C. The latitudinal temperature gradient across this region is reduced compared to today, at ∼7 °C across these 14° of latitude based on stream sample means. These temperatures are outside the optimal growth conditions of modern unionids in North America, indicating a shift in niche. Following this finding, we recalculate δ¹⁸O_water values from previously published δ¹⁸O_carb values using new Δ₄₇ temperatures instead of assumed growth temperatures. Our findings support previous observations of a bimodal distribution in freshwater δ¹⁸O_water values in this region although the absolute values shift higher. Spatial patterns of δ¹⁸O_water are consistent with a Campanian Proto-North American Monsoon and the lowest δ¹⁸O_water values we report are consistent with paleoelevation of &gt;3500 m in the Proto-Cordillera. ⁸⁷Sr/⁸⁶Sr values broadly align with different facies, with more radiogenic values occurring in major trunk rivers draining the highlands and less radiogenic values in streams recharged by low-elevation precipitation. Predominance of a ⁸⁷Sr/⁸⁶Sr signature consistent with weathering Paleozoic carbonates could be consistent with seasonal increases in rock weathering associated with a monsoon.</div></div>","PeriodicalId":11481,"journal":{"name":"Earth and Planetary Science Letters","volume":"651 ","pages":"Article 119180"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}