Yan Yan, Hui Tang, Kailai Zhou, Jens M. Turowski, Yifei Cui, Bin Xiang
{"title":"Statistical Characteristics of Basal Forces Generated by Experimental Debris Flows","authors":"Yan Yan, Hui Tang, Kailai Zhou, Jens M. Turowski, Yifei Cui, Bin Xiang","doi":"10.1029/2024JB030027","DOIUrl":"https://doi.org/10.1029/2024JB030027","url":null,"abstract":"<p>Debris flows are fast-flowing, high-energy mixtures of sediment and water that are difficult to monitor. Seismic monitoring instruments can be placed safely outside the channel, but it is an indirect method that needs the application of theory-based inversion to obtain quantitative information on flow properties and rheology. Such inversion methods do not currently exist for debris flow dynamics because the essential understanding of the relationship between the basal force and physical properties of debris flow at the channel bed is lacking. In this study, flume experiments are used to investigate the distribution of basal forces of dual-phase solid-liquid flows. We systematically varied particle size, bed slope, dynamic viscosity, particle dosage, and slurry dosage and measured the forces generated on the bed at high temporal resolution. We analyzed the probability density function of the basal impact force to identify distribution parameters relating to the physical properties of the flow. Evaluation of 10 fitted distributions showed that the Cauchy distribution and Dagum distribution best described the normalized basal force under different variables using objective criteria based on the Sinkhorn and Wasserstein distances. We found that the Cauchy and Dagum distributions' parameters correlate with the dose ratio and Bagnold numbers (<i>R</i><sup>2</sup> ∼ 0.588–0.844), showing the significant influence of the sediment concentration and particle collision rates on the distributions. The study contributes to developing a theoretical underpinning of debris-flow seismic inversion.</p>","PeriodicalId":15864,"journal":{"name":"Journal of Geophysical Research: Solid Earth","volume":"130 3","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024JB030027","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143571429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mengqiang Pang, Jing Ba, José M. Carcione, Martin Balcewicz, Mirko Siegert, Genyang Tang, Erik H. Saenger
{"title":"Structural and Elastic Properties of Carbonate Rocks With Different Pore Types Based on Digital and Theoretical Rock Physics","authors":"Mengqiang Pang, Jing Ba, José M. Carcione, Martin Balcewicz, Mirko Siegert, Genyang Tang, Erik H. Saenger","doi":"10.1029/2024JB030538","DOIUrl":"https://doi.org/10.1029/2024JB030538","url":null,"abstract":"<p>Carbonates are characterized by a complex system of pores, caves, vugs and fractures that significantly influence fluid flow and the physical behaviors of rocks. Six rock samples are taken from a carbonate reservoir in China's Sichuan Basin to perform computed tomography (CT), X-ray diffraction and thin section analyses. The samples are classified into fractured, fractured-vuggy and pore-cavity types based on their microstructural properties. Ultrasonic and low frequency tests are performed with different pressures and fluids to measure the frequency dependence of the elastic properties. The relationships between the pore types and the elastic properties are investigated, showing that there is no direct correlation between velocity and porosity for these tight carbonates. Furthermore, the elastic properties of rocks with different structure types are quite different, suggesting that the pore structure dominates the elastic velocities. The CT data are used to reconstruct digital rocks to analyze the complex pore structure. We apply a finite difference (FD) method to estimate the elastic velocities. However, the FD simulations give higher values than the ultrasonic measurements. The discrepancy is due to the limited accuracy of the CT scans, which does not capture the micro-pore structures of rocks. We consider the microscopic pores and cracks and develop a reformulated rock physics model by incorporating the theories of differential equivalent medium and squirt flow based on the simulated elastic moduli. The model can effectively interpret the experimental multi-frequency data and describe the wave response of the carbonates with different pore types. This work contributes to characterize the multiscale pore structure and understand the structural and acoustic properties of carbonate rocks. It bridges multi-frequency data and provides relevant insights and methods by integrating digital and theoretical rock physics.</p>","PeriodicalId":15864,"journal":{"name":"Journal of Geophysical Research: Solid Earth","volume":"130 3","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143571193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nianqi Li, Igor B. Morozov, Li-Yun Fu, Wubing Deng
{"title":"Unified Nonlinear Elasto-Visco-Plastic Rheology for Bituminous Rocks at Variable Pressure and Temperature","authors":"Nianqi Li, Igor B. Morozov, Li-Yun Fu, Wubing Deng","doi":"10.1029/2024JB029295","DOIUrl":"https://doi.org/10.1029/2024JB029295","url":null,"abstract":"<p>To address nonlinear constitutive relations of rocks containing soft matter such as bitumen, a rigorous rheological model based on Lagrangian mechanics is proposed. The model is general and applies to arbitrary quasi-static deformations in poroelastic or viscoelastic materials. As an application to bitumen-rich rock, the model is used for detailed modeling and inversion of laboratory measurements of linear and nonlinear creep in asphalt mastic. Several physically meaningful, loading-stress and temperature-dependent material properties are identified and inverted from laboratory observations. By presenting the data on the (strain, strain rate) plane, three distinct regimes of deformation are differentiated: viscoelasticity, linear plasticity (Newtonian viscous flow), and nonlinear plasticity (non-Newtonian flow). The model accurately predicts all measured creep data from which it was derived without hypothesizing empirical time-dependent properties of the material. In addition, the model predicts results of several new experiments: rapid unloading, measurement of effective time-dependent compliance, stress relaxation under static strain, and arbitrary controlled-strain or constant-strain-rate deformations. In constant-strain-rate experiments, peak stresses are measured and used as indicators of the onset of nonlinear creep. For a fixed temperature, these peak stresses fall on the same line in the strain-stress plane, and they are strongly related to rock properties.</p>","PeriodicalId":15864,"journal":{"name":"Journal of Geophysical Research: Solid Earth","volume":"130 3","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143571192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"3D Shear-Wave Velocity and Density Modeling of the Northern Cascadia Subduction Zone","authors":"A. O. Ojo, S. Molnar, H. Ghofrani","doi":"10.1029/2024JB030275","DOIUrl":"https://doi.org/10.1029/2024JB030275","url":null,"abstract":"<p>In the Northern Cascadia Subduction Zone (NCSZ), we developed a new 3D model for shear-wave velocity (<i>V</i><sub><i>S</i></sub>) and density to improve seismic hazard assessments and ground motion simulations. Utilizing seismic data from the past two decades, we measure surface wave dispersion from ambient noise and earthquake recordings and inverted them for <i>V</i><sub><i>S</i></sub> perturbations at various depths. Additionally, Bouguer anomaly data were inverted for a 3D density distribution. These models provide direct constraints on shear-wave velocities and density properties across the study region. Our findings corroborate previous research, highlighting: (a) anomalous low velocity zones in the Puget Lowland, attributed to subduction dehydration and trapped fluid-rich sediments; (b) low <i>V</i><sub><i>S</i></sub> beneath sedimentary basins, delineating their geometry; (c) deep-seated crustal faults on Vancouver Island indicated by segmented high-<i>V</i><sub><i>S</i></sub> zones; (d) a high-velocity anomaly corresponding to the subducting oceanic slab beneath the Olympic Peninsula beneath characterized by an anomalously slow upper mantle velocity; and (e) localized high-velocity layers straddled between low-velocity layers in the upper crust associated with magmatic processes. A novel aspect of our work is the identification of a high-density anomaly rising from the uppermost mantle, aligning with the Puget Sound waterway trajectory. This anomaly, detected at depths exceeding 20 km, provides new insights into the dynamics of oceanic crust-mantle coupling beneath the study area.</p>","PeriodicalId":15864,"journal":{"name":"Journal of Geophysical Research: Solid Earth","volume":"130 3","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024JB030275","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Thermodynamic Properties of Liquid Metal Using First-Principles Molecular Dynamics: Implications for the Compositional and Thermal State of the Earth's Outer Core","authors":"Weiyi Liu, Paul D. Asimow","doi":"10.1029/2024JB030419","DOIUrl":"https://doi.org/10.1029/2024JB030419","url":null,"abstract":"<p>The Earth's outer core consists of Fe-Ni metallic liquid, with minor quantities of light elements such as Si, S, O, C, and H. Accurate equations of state of candidate liquids are essential to translate seismic observations into constraints on the outer core's compositional and thermal state. However, the experimental database is sparse and incomplete. We apply first-principles molecular dynamics simulations to determine thermal properties of liquid metal alloys at <i>P</i>–<i>T</i> conditions spanning the outer core. We calibrate a rigorous form of pressure shift with valid high- and low-<i>P</i> limits to correct for ab initio density overestimates. Corrected results are consistent with both diamond anvil cell and shock wave experiments on Fe. We simulate liquid iron binaries (Fe-O, Fe-Si, Fe-S, Fe-Ni, Fe-C, and Fe-H) and some ternary and higher-order alloys to construct an accurate multicomponent mixing model. We use the Adams-Williamson equation to obtain self-consistent outer core velocity-density-pressure-temperature-depth profiles for given compositions and inner-core boundary temperatures and find a posterior distribution of model parameters that fit seismic radial velocity models via Markov Chain Monte Carlo Bayesian inference. For seismic models that assume a homogeneous and adiabatic outer core (PREM and EPOC-V), we identify parameter ranges that provide good fits across the entire radius of the outer core, with or without hydrogen. In contrast, body-wave models that lack an a priori constraint (ak135 and ek137) cannot be fitted within their stated precision near the top and bottom of the outer core; these seismic models require an inhomogeneous or non-adiabatic outer core.</p>","PeriodicalId":15864,"journal":{"name":"Journal of Geophysical Research: Solid Earth","volume":"130 3","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhikai Wang, Satish C. Singh, Timothy A. Minshull, Wayne C. Crawford
{"title":"Fine-Scale Crustal Velocity Structure at the Lucky Strike Segment of Mid-Atlantic Ridge From Full Waveform Inversion of Wide-Angle Seismic Data","authors":"Zhikai Wang, Satish C. Singh, Timothy A. Minshull, Wayne C. Crawford","doi":"10.1029/2024JB029982","DOIUrl":"10.1029/2024JB029982","url":null,"abstract":"<p>The Lucky Strike segment at the Mid-Atlantic ridge, characterized by a well-defined median valley with a central volcano, is an archetypical slow-spreading ridge segment and hence an ideal site for studying magmatic and tectonic processes at slow-spreading ridges. Here we present fine-scale velocity models of this segment, by applying full waveform inversion to wide-angle seismic data, that allows characterization of crustal accretion processes along the entire segment. Along ridge axis, the crust thins from ∼8.4 km at the center of the segment to ∼3.7–4.1 km at the segment ends. This large variation in crustal thickness is mainly accommodated by lower crustal thinning toward the segment ends. The ratio of the lower/upper crust thickness varies from 2.2 at the segment center to 0.1 at the segment ends, so upper crust at segment ends accounts for ∼90% of the crustal thickness, suggesting that the lateral dyking is the primary crustal accretion mechanism. The reduction of lower crustal velocity at the segment center indicates the presence there of melt within the lower crust, which is the source of melt delivery for dyke propagation. The upper crustal velocity gradually decreases from the segment center to segment ends, consistent with an increase in faulting and the presence of more evolved magma toward the segment ends. These observations demonstrate the presence of focused magma supply to the segment center. Off-axis, the upper crustal thickness shows little variation over ∼30 km on both flanks, suggesting the current magmatic accretion mode could have been active for 3 Myr.</p>","PeriodicalId":15864,"journal":{"name":"Journal of Geophysical Research: Solid Earth","volume":"130 3","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024JB029982","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143570242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fan Wang, S. Shawn Wei, Natalia A. Ruppert, Haijiang Zhang, Jonny Wu
{"title":"Slab Morphology, Dehydration, and Sub-Arc Melting Beneath the Alaska Peninsula Revealed by Body-Wave Tomography","authors":"Fan Wang, S. Shawn Wei, Natalia A. Ruppert, Haijiang Zhang, Jonny Wu","doi":"10.1029/2024JB029814","DOIUrl":"10.1029/2024JB029814","url":null,"abstract":"<p>The Alaska Peninsula has a long history of plate subduction with along-arc variations in volcanic eruption styles and geochemistry. However, the sub-arc melting processes that feed these volcanoes are unclear. The Alaska slab morphology below 200 km depth remains debated due to limited seismic data and thus low tomography resolution in this region. Here we utilize the newly available regional and teleseismic data to build 3-D high-resolution <i>V</i><sub><i>P</i></sub> and <i>V</i><sub><i>S</i></sub> models to 660 km depth. We find that the high-velocity Pacific Plate subducts to the bottom of the mantle transition zone (MTZ) with complex deformation and gaps. In the southwest, we observe a wide gap in the high-velocity slab at 200–500 km depths. Toward the northeast, the slab becomes more continuous extending to the MTZ with a few holes below 200 km. We interpret these gaps as a slab tear that coincides with the subducted ancient Kula-Pacific Ridge. We also invert for 3-D <i>V</i><sub><i>P</i></sub> and <i>V</i><sub><i>P</i></sub>/<i>V</i><sub><i>S</i></sub> models to 200 km depth with higher resolution and find strong along-strike changes in slab dehydration and sub-arc melting, indicated by low <i>V</i><sub><i>P</i></sub> and high <i>V</i><sub><i>P</i></sub>/<i>V</i><sub><i>S</i></sub> anomalies. Slab dehydration and sub-arc melting are most extensive below the Pavlof and Shumagin segments in the southwest, becoming limited below the Chignik and Chirikof segments in the northeast, and extensive again beneath the Kodiak segment further to the northeast. We propose that the variations of slab hydration at the outer rise significantly influence slab dehydration at greater depths and further control sub-arc melting beneath the Alaska Peninsula.</p>","PeriodicalId":15864,"journal":{"name":"Journal of Geophysical Research: Solid Earth","volume":"130 3","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024JB029814","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143546044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"A Reaction-Cross-Diffusion Formulation for the Evolution of Compaction Bands","authors":"Qingpei Sun, Klaus Regenauer-Lieb, Manman Hu","doi":"10.1029/2024JB031052","DOIUrl":"10.1029/2024JB031052","url":null,"abstract":"<p>We present a new thermodynamically consistent model for the time-dependent evolution of compaction bands in porous rocks. The model extends a closed-form analytical solution of compaction band formation for porous media into the time domain. The nucleation of compaction bands is predicted for a critical competition between the nonlinear reaction-diffusion processes of the power-law viscous creep of the matrix in competition with the rates of reaction-diffusion processes of the pore fluid. The width and spacing of compaction bands is regularized through dynamic renormalization of reaction-diffusion processes over a nonlocal zone which in turn governs the style of propagation of the compacting zone. The numerical models are tested against laboratory results for the evolution of compaction bands in sandstone. The results show that the model is able to accurately capture the formation and evolution of compaction bands controlled by a simple parameter space of self-diffusion of compaction of the global matrix <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <msub>\u0000 <mi>D</mi>\u0000 <mi>M</mi>\u0000 </msub>\u0000 </mrow>\u0000 <annotation> ${D}_{mathrm{M}}$</annotation>\u0000 </semantics></math> and the cross-coupled feedback between solid pressure and mobility of the fluid in the reacting zone <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <msub>\u0000 <mi>d</mi>\u0000 <mi>H</mi>\u0000 </msub>\u0000 </mrow>\u0000 <annotation> ${d}_{mathrm{H}}$</annotation>\u0000 </semantics></math>. Accordingly, three different styles of compaction observed in nature can be reproduced: (a) Classical McKenzie solution with diffuse growth of compaction over the compacted domain; (b) Growth of a rhythmic pattern of compaction bands progressing into the far field (Turing pattern); (c) Growth on any perturbations decreasing their wavelength/thickness over time.</p>","PeriodicalId":15864,"journal":{"name":"Journal of Geophysical Research: Solid Earth","volume":"130 3","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024JB031052","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143546045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Seismological Structure of the Earth's Lowermost Outer Core (F Layer) Beneath the East-Central Pacific","authors":"Toshiki Ohtaki, Satoshi Kaneshima, Taku Tsuchiya","doi":"10.1029/2024JB030052","DOIUrl":"https://doi.org/10.1029/2024JB030052","url":null,"abstract":"<p>During the inner core solidification, excess light elements are released into the outer core, which causes outer-core convection. To understand this process, it is important to determine the velocity structure of the bottom outer core (F layer). In previous studies, we developed an effective method that combines two independent observations to determine the structure. The first is the frequency dispersion of the traveltime of the wave creeping along the inner core boundary (PKPbc and PKPc-diff) relative to the wave passing through the inner core (PKIKP). The second is the traveltime difference between the reflected wave at the boundary (PKiKP) and a wave passing nearby (PKPbc). We applied this method to two laterally separated regions and observed differences in the velocity structure. In this study, we applied the same technique to a third region immediately south of one of the previously analyzed regions. Our analyses show that the observations of the study area can be explained by the velocity model for the northward neighboring area. Our analyses also confirm that no factors other than the F-layer structure can significantly affect the observed dispersion. Additionally, the distance decay rates of the PKPc-diff amplitudes were consistent with the predictions made using the same model, further confirming the stability and reliability of our method. We also show the results of converting the lateral velocity difference of the F layer between the two regions obtained in a previous study into the relative abundance of light elements, such as sulfur, silica, oxygen, carbon, and hydrogen.</p>","PeriodicalId":15864,"journal":{"name":"Journal of Geophysical Research: Solid Earth","volume":"130 3","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024JB030052","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143530257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuntao Tian, Bojiang Li, Huixia Zhong, Lili Pan, Bin Fu, Zengjie Zhang, Stanisław Mazur
{"title":"A Method for Reconstructing Denudation Histories From Big Global Thermochronologic Data, Tested on the Dabie Orogen, Eastern China","authors":"Yuntao Tian, Bojiang Li, Huixia Zhong, Lili Pan, Bin Fu, Zengjie Zhang, Stanisław Mazur","doi":"10.1029/2024JB029044","DOIUrl":"https://doi.org/10.1029/2024JB029044","url":null,"abstract":"<p>Denudation histories are of great significance for constraining landscape evolution and underlying tectonic and climatic drivers. Rock exhumation toward the Earth's surface by denudation results in cooling of rocks, as recorded by mineral thermochronometers. Decades of global thermochronologic studies have produced a large database of rock temperature history models, which have been used as indices for denudation. However, quantitative conversion of the data set into denudation histories remains lacking. This study presents a new method for inverting rock cooling paths to produce denudation histories. The method solves the 1-D thermal advection-conduction equation and uses a Bayesian method for searching the denudation rate and geothermal parameter space. In addition to thermochronometric data used by other methods, inputs also include geothermal and geological constraints. We applied the method to explore the post-orogenic denudation history of the Paleozoic–early Mesozoic Dabie orogen using a compilation of published and new rock cooling histories (<i>n</i> = 158). The results show episodic differential Cretaceous (145-110 Ma) and regional Late Cenozoic (10-0 Ma) phases of denudation. Relatively high rates of Cretaceous denudation, which locally continued to the early Cenozoic, occurred along major normal faults in response to the retreat of westward subduction of the Paleo-Pacific plate. Enhanced regional late Cenozoic denudation coincides with coeval intensification of the East Asian monsoon. The method demonstrated here will be useful for utilizing the big global thermochronologic data for quantifying spatiotemporal changes in denudation, to advance our understanding of the interactions among tectonics, climate, landscape evolution and preservation of ore deposits.</p>","PeriodicalId":15864,"journal":{"name":"Journal of Geophysical Research: Solid Earth","volume":"130 3","pages":""},"PeriodicalIF":3.9,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}