Journal of Earth Science最新文献_第2页

Detrital Zircon Geochronology of Early Triassic Strata in the West Qinling Orogen: Implications for the Tectonic Evolution of the Paleo-Tethyan Ocean 西秦岭造山带早三叠世地层的碎屑锆石地质年代学：对古泰西洋构造演化的启示

IF 3.3 2区地球科学

Journal of Earth Science Pub Date : 2024-08-14 DOI: 10.1007/s12583-022-1714-1

Zuochen Li, Xianzhi Pei, Liyong Wei, Guobing Liang, Meng Wang, Ruibao Li, Lei Pei, Chengjun Liu, Youxin Chen, Feng Gao

{"title":"Detrital Zircon Geochronology of Early Triassic Strata in the West Qinling Orogen: Implications for the Tectonic Evolution of the Paleo-Tethyan Ocean","authors":"Zuochen Li, Xianzhi Pei, Liyong Wei, Guobing Liang, Meng Wang, Ruibao Li, Lei Pei, Chengjun Liu, Youxin Chen, Feng Gao","doi":"10.1007/s12583-022-1714-1","DOIUrl":"https://doi.org/10.1007/s12583-022-1714-1","url":null,"abstract":"The West Qinling Orogen (WQO) is located in the western part of the Qinling Orogen and in the transition zone of Qilian Orogen, Songpan-Garze Orogen and Yangtze Block, and also the key position of Triassic collision orogenic event. The study of the Early Triassic strata in the WQO is contributed to analyze the closure process of the paleo-Tethys. We conducted LA-ICP-MS U-Pb dating studies on detrital zircons to determine the provenance, depositional age, and tectonic setting of the Early Triassic Longwuhe Formation in the Lintan area of the WQO. The results show that the majority of the detrital zircons in the Longwuhe Formation are mainly magmatic origin and have characteristic of crust source zircon. The lowest limit of sedimentation of the Longwuhe Formation is constrained to the Early Triassic, with the youngest detrital zircon age of 253 ± 3 Ma. The ages can be divided into five age groups: 3 346–1 636 Ma, with two peak ages of ca. 2 495 and ca. 1 885 Ma; 1 585–1 010 Ma, with a peak age at ca. 1 084 Ma; 992–554 Ma, with a peak age at ca. 939 Ma; 521–421 Ma, with a peak age at ca. 445 Ma; 418–253 Ma, with a peak age at ca. 280 Ma. Apparently, the sources of the Longwuhe Formation include the northern margin of the WQO, the Qilian Orogen (QLO) and the basement of the southern margin of the North China Block (NCB), of which the ancient basement of the southern margin of the NCB is the main source area of the Longwuhe Formation. Combined with previous studies, we propose that the Longwuhe Formation was formed in a fore-arc basin, which is related to the closure of the A’nyemaqen-Mianlüe Ocean from the Early Permian to Early–Middle Triassic due to the northward subduction-collision of the Yangtze Block (YZB). This also indicates that the A’nyemaqen-Mianlüe Ocean has flat subduction characteristics.","PeriodicalId":15607,"journal":{"name":"Journal of Earth Science","volume":"20 1","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225249","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}

引用次数: 0

Research and Application of Joint Interpretation Using P-Wave and PS-Wave in Tight Gas Exploration 致密气勘探中使用 P 波和 PS 波联合解释的研究与应用

IF 3.3 2区地球科学

Journal of Earth Science Pub Date : 2024-08-14 DOI: 10.1007/s12583-024-1995-7

Dong Wang, Meng Zhang, Jing Wang, Dan Chen, Yao Zhao, Jing Bai

{"title":"Research and Application of Joint Interpretation Using P-Wave and PS-Wave in Tight Gas Exploration","authors":"Dong Wang, Meng Zhang, Jing Wang, Dan Chen, Yao Zhao, Jing Bai","doi":"10.1007/s12583-024-1995-7","DOIUrl":"https://doi.org/10.1007/s12583-024-1995-7","url":null,"abstract":"The exploration and development of tight sandstone gas reservoirs are controlled by high-quality river channel sand bodies on a large scale in Sichuan Basin. In order to improve the accuracy of sand body prediction and characterization, Multi-component exploration technology research has been carried out in Northwest Sichuan Basin. First, based on the array acoustic logging data, a forward modeling has been established to analyze the seismic response characteristics of the PS-wave data and P-wave data. The result shows that the response characteristics of the P-wave and PS-wave to the sand bodies with different impedance are different. And then through the analysis of logging data, the effectiveness of the forward modeling has been proved. When the sandstone velocity is close to the surrounding rocks, the P-wave performs as a weak reflection, which may lead to reduce the identification range of the sand bodies. However, the PS-wave exhibits strong reflection, which can identify this type of sand bodies. Finally, by comparing and explaining the PS-wave data and P-wave data, and integrating their attributes, the prediction accuracy of sand bodies is improved. Compared with the interpretation of a single P-wave, the results can significantly expand the distribution range of sand bodies, laying a foundation for improving the production capacity of single wells and reserve submission.","PeriodicalId":15607,"journal":{"name":"Journal of Earth Science","volume":"10 1","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142198453","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}

引用次数: 0

Physical Prediction Model of Compound Hydrodynamic Unload-Load Response Ratio and Its Application in Reservoir Colluvium Landslide 复合水动力卸荷-负载响应比物理预测模型及其在水库冲积层滑坡中的应用

IF 3.3 2区地球科学

Journal of Earth Science Pub Date : 2024-08-14 DOI: 10.1007/s12583-022-1662-9

Lu Guo, Keqiang He, Honghua Liu, Fandi Meng, Xuchun Wang

{"title":"Physical Prediction Model of Compound Hydrodynamic Unload-Load Response Ratio and Its Application in Reservoir Colluvium Landslide","authors":"Lu Guo, Keqiang He, Honghua Liu, Fandi Meng, Xuchun Wang","doi":"10.1007/s12583-022-1662-9","DOIUrl":"https://doi.org/10.1007/s12583-022-1662-9","url":null,"abstract":"It is well known that the deformation and damage of reservoir colluvium landslides are often determined by the combined dynamics of reservoir water level change and rainfall. Based on the systematic analysis of the change law of reservoir water level, rainfall and displacements of reservoir colluvium landslide, this paper proposes the compound hydrodynamic action of rainfall and reservoir water as the unload-load parameter, and the landslide displacement as the unload-load response parameter. Based on this, a physical prediction model of the compound hydrodynamic unload-load response ratio of reservoir colluvium landslide was established, and the quantitative relationship between the compound hydrodynamic unload-load response ratio and its stability evolution was in-depth analyzed and determined. On the basis of the above research, taking Shuping landslide, a typical hydrodynamic pressure landslide as an example, the unload-load response ratio model is used to systematically evaluate and predict the stability evolution law and the change trend of the landslide under compound hydrodynamic action. The prediction result shows that the variation law of the compound hydrodynamic unload-load response ratio is consistent with the dynamic evolution law of its stability. Therefore, the above studies show that the compound hydrodynamic unload-load response ratio parameter is an effective displacement dynamic evaluation parameter for reservoir colluvium landslides, so it can be used in the prediction of the reservoir colluvium landslides.","PeriodicalId":15607,"journal":{"name":"Journal of Earth Science","volume":"134 1","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142198490","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}

引用次数: 0

Effects of the Rainfall-Triggered Lisse Effect on the Stability of Loess Slopes 降雨引发的里斯效应对黄土斜坡稳定性的影响

IF 3.3 2区地球科学

Journal of Earth Science Pub Date : 2024-08-14 DOI: 10.1007/s12583-021-1536-6

Zhizhou Yang, Donghui Cheng, Jun Xia

{"title":"Effects of the Rainfall-Triggered Lisse Effect on the Stability of Loess Slopes","authors":"Zhizhou Yang, Donghui Cheng, Jun Xia","doi":"10.1007/s12583-021-1536-6","DOIUrl":"https://doi.org/10.1007/s12583-021-1536-6","url":null,"abstract":"This paper coupled a water-air two-phase hydrodynamic (WATPH) model with the Iverson’s method to analyze the influence of the Lisse effect on the fast groundwater pressure (Pw) response and the slope stability. Furthermore, the sensitivities of the driving force and loess soil parameters were investigated. Results showed that the WATPH model simulated the height and rise of the depth to the water table reasonably well. The depth to water table before rainfall (H0) had a significant impact on the Lisse effect and the slope stability. When the H0 was less than approximately 1 m, the rainfall triggered a significant Lisse effect and decreased the slope factor of safety (Fs). When the rainfall intensity (Ri) was higher than the saturated hydraulic conductivity (Ks), the Lisse effect and the Fs slightly changed with the increase of the Ri, and the slope tended to be unstable with continuous rainfall. With increasing Ks, the Lisse effect noticeably increased, and the minimum Fs quickly decreases. The analysis of the normalized sensitivity coefficient revealed that H0 had a dramatic impact on the Lisse effect and loess slope stability. The different Ri and Ks values had prominent influences on the Lisse effect and slight impacts on Fs.","PeriodicalId":15607,"journal":{"name":"Journal of Earth Science","volume":"44 1","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142198478","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}

引用次数: 0

Application of Detrital Apatite U-Pb Geochronology and Trace Elements for Provenance Analysis, Insights from a Study on the Yarlung River Sand 应用岩屑磷灰石 U-Pb 地质年代学和微量元素进行产地分析，雅鲁藏布江沙地研究的启示

IF 3.3 2区地球科学

Journal of Earth Science Pub Date : 2024-08-14 DOI: 10.1007/s12583-023-1863-x

Yufeng Du, Guangwei Li, Danyang Liu, Xianyan Wang, Dongxu Cai, Xiaolu Dong, Qi Yu

{"title":"Application of Detrital Apatite U-Pb Geochronology and Trace Elements for Provenance Analysis, Insights from a Study on the Yarlung River Sand","authors":"Yufeng Du, Guangwei Li, Danyang Liu, Xianyan Wang, Dongxu Cai, Xiaolu Dong, Qi Yu","doi":"10.1007/s12583-023-1863-x","DOIUrl":"https://doi.org/10.1007/s12583-023-1863-x","url":null,"abstract":"Detrital U-bearing minerals (e.g., zircon, apatite) U-Pb ages with specific trace-element geochemistry, are frequently used in provenance analyses. In this study, we focus on the Yarlung River drainage in South Tibet, characterized by two distinct lithologic units: The Gangdese batholith to the north (mainly granitoids) and the Tethyan Himalaya (mainly sedimentary rocks) to the south, which plays a crucial role in the erosion of the Tibetan Plateau. To constrain the provenance of the Yarlung River Basin, we performed trace-element and U-Pb age analyses of detrital apatite from the river sands of the Yarlung River and its tributaries. Our findings indicate that the detrital apatite U-Pb age patterns of the north tributaries exhibit main peaks at approximately 40 and 60 Ma, consistent with the corresponding U-Pb age patterns of detrital zircon published. Further, their trace element casts fall mainly in the Type I granite region, also indicating the Gangdese arc-dominated source. However, those of the south tributaries (∼60–20 Ma) exhibit a different age distribution from the detrital zircon U-Pb groups (∼110–150, ∼500, and 1 100 Ma), suggesting that the detailed apatite U-Pb signals can provide excellent constraints on the provenance of igneous and metamorphic rock sources but less so for sedimentary rock sources. Combined with previous detrital zircon data in the study area, our detrital apatite information can highlight young metamorphic events from a complex background (i.e., Niyang and Nianchu rivers), which offers additional constraints on the provenance of the Yarlung River Basin. Generally, a combination of geochemistry and geochronology of multi-detrital heavy minerals, such as zircon and apatite, can provide powerful tools for provenance analysis.","PeriodicalId":15607,"journal":{"name":"Journal of Earth Science","volume":"74 1","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142198408","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}

引用次数: 0

Structural Stability of Natural Magnesiochromite at High-Temperature-Pressure Conditions 天然镁铬铁矿在高温高压条件下的结构稳定性

IF 3.3 2区地球科学

Journal of Earth Science Pub Date : 2024-08-14 DOI: 10.1007/s12583-022-1798-7

Shuyu Jin, Xiang Wu, Yungui Liu, Yanfei Zhang, Chao Wang

{"title":"Structural Stability of Natural Magnesiochromite at High-Temperature-Pressure Conditions","authors":"Shuyu Jin, Xiang Wu, Yungui Liu, Yanfei Zhang, Chao Wang","doi":"10.1007/s12583-022-1798-7","DOIUrl":"https://doi.org/10.1007/s12583-022-1798-7","url":null,"abstract":"The podiform chromitites in the Luobusha ophiolite have been thought to experience a very deep formation, but the maximum depth is still an open issue. Here, we have investigated the structural stability of natural magnesiochromite using the synchrotron-based powder X-ray diffraction and diamond anvil cells up to 48.6 GPa and 2 450 K. The results have shown that spinel-type magnesiochromite first decomposes into corundum-type ‘Cr2O3’ + B1-type ‘MgO’ at 11–14 GPa and 1 250–1 450 K, then modified ludwigite (mLd)-type ‘Mg2Cr2O5’ + corundum-type ‘Cr2O3’ at 14.3–20.5 GPa and 1 300–2 000 K, and finally CaTi2O4-type phase at 24.5 GPa. During the quenching procession from high-temperature-pressure conditions, the mLd-type phase appeared again and was kept at ambient conditions. We also obtained the isothermal equation states of spinel-type and CaTi2O4-type phases, revealing the composition effect on their elasticities. Based on the updated results, we propose chromitites could not experience pressure exceeding ∼14.3 GPa (approximate maximum depth ∼400 km) in the subduction-recycling genesis model.","PeriodicalId":15607,"journal":{"name":"Journal of Earth Science","volume":"214 1","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142198444","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}

引用次数: 0

Note on Lower Triassic Gondolelloid Conodont Rediversifications with Emphasis on the Spathian Recovery 三叠纪下三叠统软骨鱼类吻齿目再现的说明，重点是斯帕蒂亚的发现

IF 3.3 2区地球科学

Journal of Earth Science Pub Date : 2024-08-14 DOI: 10.1007/s12583-023-1954-8

Ali Murat Kilic

引用次数: 0

Deep Learning and Network Analysis: Classifying and Visualizing Geologic Hazard Reports 深度学习和网络分析：地质灾害报告的分类和可视化

IF 3.3 2区地球科学

Journal of Earth Science Pub Date : 2024-08-14 DOI: 10.1007/s12583-021-1589-6

Wenjia Li, Liang Wu, Xinde Xu, Zhong Xie, Qinjun Qiu, Hao Liu, Zhen Huang, Jianguo Chen

{"title":"Deep Learning and Network Analysis: Classifying and Visualizing Geologic Hazard Reports","authors":"Wenjia Li, Liang Wu, Xinde Xu, Zhong Xie, Qinjun Qiu, Hao Liu, Zhen Huang, Jianguo Chen","doi":"10.1007/s12583-021-1589-6","DOIUrl":"https://doi.org/10.1007/s12583-021-1589-6","url":null,"abstract":"If progress is to be made toward improving geohazard management and emergency decision-making, then lessons need to be learned from past geohazard information. A geologic hazard report provides a useful and reliable source of information about the occurrence of an event, along with detailed information about the condition or factors of the geohazard. Analyzing such reports, however, can be a challenging process because these texts are often presented in unstructured long text formats, and contain rich specialized and detailed information. Automatically text classification is commonly used to mine disaster text data in open domains (e.g., news and microblogs). But it has limitations to performing contextual long-distance dependencies and is insensitive to discourse order. These deficiencies are most obviously exposed in long text fields. Therefore, this paper uses the bidirectional encoder representations from Transformers (BERT), to model long text. Then, utilizing a softmax layer to automatically extract text features and classify geohazards without manual features. The latent Dirichlet allocation (LDA) model is used to examine the interdependencies that exist between causal variables to visualize geohazards. The proposed method is useful in enabling the machine-assisted interpretation of text-based geohazards. Moreover, it can help users visualize causes, processes, and other geohazards and assist decision-makers in emergency responses.","PeriodicalId":15607,"journal":{"name":"Journal of Earth Science","volume":"9 1","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142198451","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}

引用次数: 0

Research on Reservoir Landslide Thrust Based on Improved Morgenstern-Price Method 基于改进的 Morgenstern-Price 方法的水库滑坡推力研究

IF 3.3 2区地球科学

Journal of Earth Science Pub Date : 2024-08-14 DOI: 10.1007/s12583-021-1545-5

Xuan Wang, Xinli Hu, Chang Liu, Lifei Niu, Peng Xia, Jian Wang, Jiehao Zhang

引用次数: 0

Paleozoic Multi-Stage Magmatic Events Related to Proto-Tethys and Paleo-Tethys Evolution: Insights from Intrusive Rocks in the Eastern Altyn Orogen, NW China 与原特提斯和古特提斯演化有关的古生代多期岩浆事件：中国西北部东阿尔金山造山带侵入岩的启示

IF 3.3 2区地球科学

Journal of Earth Science Pub Date : 2024-08-14 DOI: 10.1007/s12583-021-1603-z

Jiyong Li, Yanqing Xia, Xilong Zhang, Haoyuan Jiang, Tianzhu Lei, Yongchao Wang, Yanhong Liu, Shanpin Liu, Xiaobao Zhang

{"title":"Paleozoic Multi-Stage Magmatic Events Related to Proto-Tethys and Paleo-Tethys Evolution: Insights from Intrusive Rocks in the Eastern Altyn Orogen, NW China","authors":"Jiyong Li, Yanqing Xia, Xilong Zhang, Haoyuan Jiang, Tianzhu Lei, Yongchao Wang, Yanhong Liu, Shanpin Liu, Xiaobao Zhang","doi":"10.1007/s12583-021-1603-z","DOIUrl":"https://doi.org/10.1007/s12583-021-1603-z","url":null,"abstract":"Abundant mafic-felsic intrusions distributed in the Altyn Orogen record orogenic histories related to Proto-Tethys and Paleo-Tethys evolution. Zircon U-Pb dating of the intrusive rocks in the eastern Altyn Orogen identifies at least three major tectono-magmatic episodes, yielding ages of ∼426, ∼376–373 and ∼269–254 Ma. The first two emplacement episodes correspond to the post-collisional magmatism in the Altyn Orogen. The ∼426 Ma granitoids possess adakitic characteristics coupled with enriched isotopes, suggesting that they originated from partial melting of thickened lower continental crust induced by upwelling asthenospheric mantle after slab break-off of the South Altyn Ocean Plate. Next, the ∼376–373 Ma mafic-intermediate rocks and coeval granitoids represent a large thermal event that involved mantle melting with induced new juvenile lower continental crust melting in a post-collisional extensional setting. Finally, the ∼254 Ma diabase dykes intruded into the ∼269 Ma granitoids, which were related to the widespread Late Paleozoic magmatism resulting from Paleo-Tethys Ocean subduction. Post-collisional magmatism in the Altyn Orogen significantly enhances understanding of the tectono-magmatic evolution in the northern Tibetan Plateau. The penetrative influence of Paleo-Tethys Ocean subduction was more extensive than previously thought.","PeriodicalId":15607,"journal":{"name":"Journal of Earth Science","volume":"28 1","pages":""},"PeriodicalIF":3.3,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142198410","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}

引用次数: 0