Journal of Asian Earth Sciences: X最新文献

{"title":"Provenance and uranium source of the lower cretaceous sedimentary rocks in Northern Sichuan Basin: evidence from sedimentary facies analysis and detrital zircon U-Pb geochronology","authors":"Wen-hao Li ,&nbsp;De-ru Xu ,&nbsp;Jia-bao Yang ,&nbsp;Qiu-shuang Fan ,&nbsp;Zhao-kun Yan ,&nbsp;Cheng-yong Zhang ,&nbsp;Zeng-hua Li","doi":"10.1016/j.jaesx.2025.100201","DOIUrl":"10.1016/j.jaesx.2025.100201","url":null,"abstract":"<div><div>In this paper, we present results of sedimentary facies analysis and U-Pb dating of detrital zircons from the Lower Cretaceous uranium-bearing sandstones in northern Sichuan Basin, to investigate the influence of provenance and sedimentation process on the temporal and spatial distribution of uranium-bearing sandstones. The results show that there are four major zircon U-Pb age populations that cluster at 2800–2200 Ma (group 1), 2200–1600 Ma (group 2), 1600–538 Ma (group 3), and 538–145 Ma (group 4), respectively. The age data, combined with regional tectonic events, indicate that zircons of group 1, group 2 and group 3 in the western part of the Sichuan basin were mainly derived from the Bikou and Songpan-Ganzi terranes, and the varieties of group 4 were mainly originated from the Longmenshan thrust belt. Whereas zircons of group 1, group 2 and group 3 in the eastern part of the Sichuan basin were primarily sourced from the South Qinling Belt and the Bikou terrane, and those of group 4 were likely affiliated with the Hannan Micangshan massif and Dabashan thrust belt. The Paleozoic low-grade metamorphic rocks and Mesozoic sedimentary rocks and minor intermediate-acidic magmatic and volcanic rocks represented by group 4 zircons are considered as the primary source for uranium mineralization in the Lower Cretaceous sandstones. The Neoarchean to Proterozoic metamorphic rocks and plutonic and volcanic rocks, as revealed from the group 1, group 2 and group 3 zircons also contributed partially to the uranium sources.</div></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"14 ","pages":"Article 100201"},"PeriodicalIF":2.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144766976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fate of the Late Triassic Songpan–Ganzi Basin in the eastern Paleo-Tethys Ocean: Geochemical and geochronological constraints in the NE Tibetan Plateau: Comment","authors":"Ru-Ye Tian,&nbsp;Jia Qu,&nbsp;Peng-Tao Wang,&nbsp;Wen-Tao Wang","doi":"10.1016/j.jaesx.2025.100206","DOIUrl":"10.1016/j.jaesx.2025.100206","url":null,"abstract":"","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"14 ","pages":"Article 100206"},"PeriodicalIF":2.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144932087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magmatic evolution and mineralization of the Eocene back-arc magmatic rocks from NE Iran","authors":"Ghasem Ghorbani ,&nbsp;Jose F. Santos","doi":"10.1016/j.jaesx.2025.100212","DOIUrl":"10.1016/j.jaesx.2025.100212","url":null,"abstract":"<div><div>The Eocene magmatism in NE Iran represents a significant component of the broader Cenozoic magmatic activity associated with the subduction of the Neotethys Ocean beneath the Iranian plateau. This study focuses on the petrogenesis, geochronology, and mineralization of magmatic rocks from the Nokeh area, which hosts Fe-skarn mineralization, in comparison with the Torud intrusions, associated with Cu-Au mineralization. Both sites are located in the northeastern sector of the Iranian back-arc belt, behind the Urumieh-Dokhtar magmatic front. Our comprehensive dataset includes bulk rock geochemistry, zircon U-Pb ages, zircon trace element compositions, and Lu-Hf isotopes. Geochemical and isotopic signatures indicate that Torud rocks are predominantly intermediate to felsic, derived from a metasomatized mantle source with limited crustal interaction, whereas Nokeh rocks display broader compositional diversity (e.g., zircon Hf isotope) and higher degrees of crustal assimilation. Zircon U-Pb dating constrains magmatic activity in Nokeh between 53 and 52 Ma, coeval with Eocene arc-backarc magmatism across Iran. Zircon trace element compositions and Hf isotope data further reveal distinct melt evolution pathways at each site. These differences in magmatic evolution correlate with contrasting mineralization styles: iron-rich skarn formation in Nokeh versus Cu-Au porphyry-style mineralization in Torud. The results provide new insights into the spatial and temporal variation of Eocene back-arc magmatism and its control on the metallogenic fertility in NE Iran.</div></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"14 ","pages":"Article 100212"},"PeriodicalIF":2.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145681161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of the concentration, mobility, and bioavailability of Co, Cr, and Ni in soils from west Sabzevar ophiolitic complex, Iran","authors":"Parisa Maleknia ,&nbsp;Seyed Ali Mazhari ,&nbsp;Nelson Ugwonoh ,&nbsp;Szabolcs Czigány ,&nbsp;Monika Kasina ,&nbsp;Justine L. Myovela","doi":"10.1016/j.jaesx.2025.100203","DOIUrl":"10.1016/j.jaesx.2025.100203","url":null,"abstract":"<div><div>Soil contamination by heavy metals poses significant risks to ecosystems and human health, necessitating assessments beyond total concentrations to evaluate bioavailability and mobility. This study investigates heavy metal distribution in soils derived from ultramafic-rich ophiolitic complexes in the Sabzevar Range, northeastern Iran, focusing on Nickel (Ni), Chromium (Cr), and Cobalt (Co). Surface soils from Davarzan (sections A and B) and Namen areas were analyzed using total digestion, The diethylenetriaminepentaacetic acid (DTPA) single-step extraction, and The European Community Bureau of Reference (BCR) sequential extraction protocol to assess total concentrations, bioavailability, mobility and geochemical partitioning of heavy metals. Results indicate elevated total Ni and Cr concentrations exceeding Iranian maximum permissible concentrations (MPCs), with Ni and Cr classified as “heavily polluted” via geoaccumulation indices (I_geo ≥ 3). DTPA extraction revealed higher bioavailability in agricultural soils, emphasizing anthropogenic influences. BCR sequential extraction demonstrated that &gt; 70 % of Co, &gt;80 % of Cr, and &gt; 75 % of Ni were sequestered in residual fractions, suggesting limited inherent mobility. However, absolute bioavailable and mobile fractions exceeded MPC thresholds in several samples, highlighting latent ecological risks. Spatial variability in metal behavior correlated with lithological provenance: ultramafic-derived soils (Davarzan Section A) exhibited maximal metal enrichment and mobility, while alluvial soils (Namen) showed dilution effects. Agricultural practices increased organic carbon and phosphate content, enhancing metal retention and mobilization. This study underscores the critical role of speciation analysis in environmental risk assessments in ultramafic terrains. Integrating bioavailability metrics with total concentrations provides a robust framework for prioritizing remediation strategies in contaminated ecosystems.</div></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"14 ","pages":"Article 100203"},"PeriodicalIF":2.3,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144721097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Iterative natural thresholding algorithm for seismic inversion aimed at potentially recovering geological interfaces characterized by weak reflection","authors":"Zidan Fan ,&nbsp;Ronghuo Dai ,&nbsp;Yue Feng","doi":"10.1016/j.jaesx.2025.100198","DOIUrl":"10.1016/j.jaesx.2025.100198","url":null,"abstract":"<div><div>Seismic inversion has developed into the core technology of quantitative prediction of rock’s elastic properties of underground in the exploration geophysics. In practical application, seismic impedance inversion is a frequently utilized technique. But it still has unsatisfactory protection of small reflectivity series in real seismic data. These small reflectivity series correspond to the weak reflections of geological interfaces, which is usually a sign of low acoustic impedance contrast in tunnels engineering or reservoirs of oil and gas in petroleum engineering, and other strata of geological significance. Hence, it is very important and meaningful to recover them from original seismic data. This paper adopts a novel algorithm named iterative natural thresholding algorithm (INTA) with the aim to improve the protection of weak reflections. Through an optimal thresholding operator and a concave regularization to enforce an optimal sparse solution, INTA can potentially recover these geological interfaces characterized by weak reflection. We utilize a synthetic seismic data profile and a real seismic data set to test its feasibility and show its better protection of small reflectivity series. From the inversion results, one can see that, compared to common used sparse constrained seismic inversion method, the inverted impedance by the proposed method can better characterize weak reflectors and help understand the structure of the earth more accurately.</div></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"13 ","pages":"Article 100198"},"PeriodicalIF":1.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Formation mechanism of the deep double-layer thermal structure in Bohai Bay Basin, eastern China, and its impact on hydrocarbon production","authors":"Yubei He,&nbsp;Jian Zhang","doi":"10.1016/j.jaesx.2025.100196","DOIUrl":"10.1016/j.jaesx.2025.100196","url":null,"abstract":"<div><div>Bozhong Depression is the marine part of Bohai Bay Basin and is also the area with the most abundant offshore oil and gas resources in China. According to recent seismic data, kinematic evolution has resulted in a double-layer velocity structure as well as a corresponding double-layer thermal structure in the crust and mantle in Bozhong Depression. Under the influence of the India–Eurasia collision and Pacific plate subduction, Bohai Bay Basin has been subjected to active rifting and associated heat transfers since the late Cenozoic, resulting in two sets of deep and shallow oil and gas reservoir systems, which are related to the double-layer thermal structure. However, the evolution mechanism of this structure remains unclear because of lack of research on the vertical structure of the lithosphere in the area. We conducted finite-element simulations using seismic, geomagnetic, and geothermal heat flow data; results indicate synchronous uplift of deep mantle material and high-temperature crustal material in Bozhong Depression around 23 Ma. Around 5.3 Ma, retreat of the Pacific plate subduction accelerated and the deep mantle was uplifted by a small amount, creating a double-layer structure with differential uplift between the mantle and the crust. Successive synchronous and differential uplift in a double-layer thermal structure explains the anomalously high temperatures found during exploratory drilling in Bozhong Depression. Furthermore, the temperature of the sedimentary stratum in Bozhong Depression currently lies within the best window for oil and gas generation; it is the Golden Age for numerous oil and gas reservoirs.</div></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"13 ","pages":"Article 100196"},"PeriodicalIF":1.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Provenance of Middle Jurassic sandstones from the Yuqia depression in the northern Qiadam Basin (NW China): Implications for basin evolution and paleoclimatic conditions","authors":"Kai Zhou ,&nbsp;Minfang Yang ,&nbsp;Ran Gao ,&nbsp;Zhiming Yan ,&nbsp;Peixin Zhang ,&nbsp;Wanqing Wang ,&nbsp;Weichao Wang ,&nbsp;Lei Wang ,&nbsp;Longyi Shao ,&nbsp;Jing Lu","doi":"10.1016/j.jaesx.2025.100195","DOIUrl":"10.1016/j.jaesx.2025.100195","url":null,"abstract":"<div><div>The petrography of 106 clastic rock samples from the Middle Jurassic Dameigou and Shimengou Formations in the Qaidam Basin was analyzed to investigate their provenance and basin evolution. Five distinct sandstone units have been identified from the base of the Dameigou Formation to the top of the Shimengou Formation, hereafter termed as S-I, S-II, S-III, S-IV, and S-V. Petrographic analysis suggests that during the deposition of S-I (Aalenian stage), sediments were sourced from the Qaidam Main Block at the southern margin of the basin and the South Qilian Mountains at the northern margin. However, during the deposition of S-II, S-III, S-IV, and S-V (Bajocian to early Callovian stages), the basin received sediments from the East Kunlun Mountains to the south and the Qilian Mountains to the north. Mineralogical Index of Alteration (MIA) values, along with discrimination diagrams, indicate that the Middle Jurassic climate in the Qaidam Basin transitioned from semi-humid and warm (S-I) to humid and warm (S-II to S-IV), before returning to semi-humid and warm conditions (S-V). A basin evolution model was developed according to our findings, which provide a better understanding in the basin-forming processes and the principle of resource accumulation in the Middle Jurassic.</div></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"13 ","pages":"Article 100195"},"PeriodicalIF":1.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Geodynamic and magmatic evolution of the Kamyaran ophiolite complex, NW Iran: Tectonic transition from oceanic subduction to continental collision","authors":"Ayoub Veisinia ,&nbsp;Mohammad Ebrahimi ,&nbsp;Bahman Rahimzadeh ,&nbsp;Zhiyong Zhang ,&nbsp;Jamshid Ahmadian ,&nbsp;Rasoul Esmaeili","doi":"10.1016/j.jaesx.2025.100197","DOIUrl":"10.1016/j.jaesx.2025.100197","url":null,"abstract":"<div><div>The ophiolites in the Zagros orogen are relics of the Neo-Tethyan Ocean, which existed between the continents of Laurasia and Gondwana. There is much debate about the formation and evolution of the Neo-Tethyan Ocean. Knowledge on its pre-collisional tectonic evolution is of critical importance in precisely constraining its timing and history. The Kamyaran ophiolitic complex consists of several tectonically dismembered units including peridotite lenses and various gabbroic rocks as part of a Mesozoic ophiolitic belt extending from Kermanshah to Khoy in northwestern Iran. Mineral chemistry of the peridotites indicates that they underwent medium degree of partial melting (14–18%) and produced melts of MORB-like character in a suprasubduction setting with weak subduction-related signatures. The beginning of intra-oceanic subduction in the northeast margin of the Arabian plate caused metasomatism in the residual mantle of depleted peridotites. Gabbroic rocks display tholeiitic to calc-alkaline signatures with negative Nb, Th and Ti and positive Sr, Ba, U and Eu anomalies. Granular and pegmatoid gabbroic rocks with slight depletion of LREE and HREE pattern, crystallized from parental melts of N-MORB composition. This magma, characterized by negative Th, Nb, and Ti anomalies, was generated from depleted mantle. Pegmatoid gabbros are distinguished from granular gabbros by features such as more depleted REE, negative Th, Nb, Ti anomalies and lack of Eu positive anomalies. Microgabbroic dykes show N-MORB affinities and lack negative Nb and Ta anomalies. Geological and geochemical data suggest a transitional setting from oceanic island arc to continental arc following the closure of the Neo-Tethys. The complex is part of the supra-subduction zone ophiolite that emplaced during the collision of the Arabian and Iranian plateaus.</div></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"13 ","pages":"Article 100197"},"PeriodicalIF":1.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Origin and evolution of serpentinized peridotite from the Ciletuh Mélange in Sunda Arc, Indonesia: Evidence from petrography, mineralogy, and geochemistry","authors":"Rinaldi Ikhram ,&nbsp;Takashi Hoshide ,&nbsp;Tsukasa Ohba ,&nbsp;Mega Fatimah Rosana ,&nbsp;Adi Hardiyono","doi":"10.1016/j.jaesx.2024.100188","DOIUrl":"10.1016/j.jaesx.2024.100188","url":null,"abstract":"<div><div>The Ciletuh Mélange in southern Sundaland (West Java, Indonesia) is a key location for ophiolitic mélanges, featuring widespread serpentinized peridotite. These rocks exhibit varied textures and structures and can be classified into three types based on the extent of serpentinization: type 1 (lherzolite, &lt;10 % serpentinization), type 2 (60–80 % serpentinization), and type 3 (&gt;90 % serpentinization). Olivine and spinel mineral chemistry indicates two origins for the peridotite: magmatic cumulate (type 1, olivine Fo#: ∼81, spinel Cr#: 63–70) and mantle-derived (types 2 and 3, olivine Fo: 88–90, spinel Cr#: 55–66). Protoliths of both types 2 and 3 show abyssal (mid-oceanic ridge basalt) and fore-arc mantle peridotite characteristics, formed by partial melting (∼5–25 %) and melt-rock interaction (TiO₂ in spinel &gt; 1 wt%). Type 1 lherzolite, by contrast, crystallized as a cumulate at the mantle-crust boundary. The variation of geochemical signatures, along with evidence of melt influence, suggest formation in a supra-subduction zone. In subduction systems, the protoliths underwent serpentinization at varying metamorphic grades, producing serpentines such as lizardite, antigorite, chrysotile, and polygonal serpentine. Antigorite formed under high-grade metamorphism, while lizardite, chrysotile, and polygonal serpentine form under lower-grade conditions. The presence of rodingite dikes cutting through serpentinite suggests metasomatic processes, notably rodingitization, involving diffusional metasomatism between serpentinization fluids and metamorphosed gabbro in the subduction zone. Serpentinized peridotites and rodingites were later exhumed as part of the ophiolitic mélange.</div></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"13 ","pages":"Article 100188"},"PeriodicalIF":1.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143176463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantitative evaluation and effectiveness criteria for the crystalline bedrock-type reservoir in the central uplift zone of the northern Songliao basin, NE China","authors":"Bo Zhao ,&nbsp;Shumin Yin ,&nbsp;Zhongquan Li ,&nbsp;Zheng Liu ,&nbsp;Guoxin Sun ,&nbsp;Chunming Lin ,&nbsp;Zhen Li ,&nbsp;Shun Zhang ,&nbsp;Jing Li","doi":"10.1016/j.jaesx.2025.100193","DOIUrl":"10.1016/j.jaesx.2025.100193","url":null,"abstract":"<div><div>The crystalline bedrock-type gas reservoirs in the central uplift zone of the northern Songliao Basin represent a significant target for deep natural gas exploration. However, few studies have evaluated and identified effective reservoirs within this specific zone. In this paper, we present a comprehensive study on several exploration drill cores to constrain the pore structure, fracture parameters, minimum porosity and permeability thresholds required for fluid migration in the crystalline bedrock-type reservoirs in the central uplift zone, in an attempt to establish the criteria for identifying effective reservoirs. The results reveal that nanometer- to micron-sized pores, microfissures, and fracture zones are well developed in the crystalline bedrock-type reservoirs, indicating that they can be classified as low-porosity, ultra-low-permeability reservoirs. The identified thresholds for an effective reservoir consist of porosity of 1.5 % and permeability of 0.015 × 10⁻³ μm², and a minimum pore-throat radius of 0.02 μm for fluid mobility. These criteria provide useful guides for identifying effective reservoirs within the crystalline bedrocks.</div></div>","PeriodicalId":37149,"journal":{"name":"Journal of Asian Earth Sciences: X","volume":"13 ","pages":"Article 100193"},"PeriodicalIF":1.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}