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More Catastrophic Flow Events may Follow the Chamoli Rock and Ice Avalanche under Climate Change

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Journal of Earth Science 2024年第4期35卷 1382-1384页

作者： haijun qiu Ya Liu Bingzhe Tang Ninglian Wang Jiading Wang Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity College of Urban and Environmental SciencesNorthwest UniversityXi’an 710127China Institute of Earth Surface System and Hazards Northwest UniversityXi’an 710127China State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi’an 710069China

0 INTRODUCTION Global warming not only exacerbates the instability of the climate system,causing more weather extremes but also has far-reaching impacts on surface systems,changing disaster environments(qiu et al.,2024;Ye et al.,2024).The key medium between climate warming and the mountain environment is the cryosphere,whose recession increases the occurrence of chain disasters such as rock-ice avalanches and other flow events(Yang et al.,2023).

关键词： warming disaster climate

Regional Emigration—China's New Approach to Geo-Disaster Mitigation

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Journal of Earth Science 2024年第5期35卷 1786-1788页

作者： haijun qiu Wen Nie Liang Zhou Yingdong Wei Jiading Wang Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity College of Urban and Environmental SciencesNorthwest UniversityXi'an 710127China Quanzhou Institute of Equipment Manufacturing Haixi InstitutesChinese Academy of SciencesQuanzhou 362000China Faculty of Geomatics Lanzhou Jiaotong UniversityLanzhou 730070China State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi'an 710069China

INTRODUCTION In southern Shaanxi,China,the government is implementing a“pre-emptive”migration away from remote mountains and contiguous areas with extreme poverty(Figure 1).The direct aim is to eradicate extreme poverty and protect the ecological integrity in mountainous ***,this policy can not only reduce human damage to natural protected areas and wildlife habitats,but more importantly,bid farewell to the areas where geo-disasters are frequent,the risk of farmers'exposure to disasters is eliminated.

关键词： extreme Figure mountains

Geochemical Characteristics and Gas-to-Gas Correlation of Two Leakage-type Gas Hydrate Accumulations in the Western Qiongdongnan Basin, South China Sea

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Acta Geologica Sinica(English Edition) 2022年第2期96卷 680-690页

作者： LAI Hongfei qiu haijun LIANG Jinqiang KUANG Zenggui FANG Yunxin REN Jinfeng LU Jing’an Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou) Guangzhou 511458China MNR Key Laboratory of Marine Mineral Resources Guangzhou Marine Geological SurveyMinistry of Natural ResourcesGuangzhou 510075China

In recent years,a series of highly saturated leakage-type gas hydrates have been discovered in the western Qiongdongnan Basin(QDNB),South China *** on the molecular compositional and isotopic characteristics of the gas samples relevant to the gas hydrates collected from the two leakage-type gas hydrate accumulations in the GMGS5 and GMGS6 drilling zones,a detailed geochemical gas-to-gas correlation was conducted in this study,in order to further understand the geochemical characteristics and possible hydrocarbon sources of these gas *** natural gas relevant to the gas hydrates in the GMGS5 block is characterized by wet gas(67.96%0.9)and lack molecular and carbon isotope *** 40%‒60%of the methane within the gas hydrate is of microbial origin,while the C^(2+)gas components are typical coal-type gas that are derived from thermogenic source rocks or deeply-buried natural gas *** addition,typical in situ primary microbial methane(−80.6‰<δ^(13)C-C_(1)<−67.7‰)was discovered in well W b,which was applied to estimate the contribution of the microbial gas to the gas *** gas-to-gas correlation results show that the hydrate gases within the two leakage-type gas hydrate accumulations in the GMGS5 and GMGS6 blocks are geochemically different,suggesting that they may have been derived from different source *** results further indicate that the deeply-buried thermogenic gas significantly contributed to the shallowly-buried gas hydrates in the western QDNB and multiple effective thermogenic source kitchens provided the hydrocarbon gas in the gas hydrate accumulations.

关键词： gas hydrate gas genetic type hydrocarbon gas source geochemical characteristics

Quick and automatic detection of co-seismic landslides with multifeature deep learning model

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Science China Earth Sciences 2024年第7期67卷 2311-2325页

作者： Wenchao HUANGFU haijun qiu Peng CUI Dongdong YANG Ya LIU Bingzhe TANG Zijing LIU Mohib ULLAH College of Urban and Environmental Sciences Northwest UniversityXi'an 710127China Institute of Mountain Hazards and Environment Chinese Academy of SciencesChengdu 610041China Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity Northwest UniversityXi'an 710127China Institute of Earth Surface System and Hazards Northwest UniversityXi'an 710127China

Co-seismic landslide detection is essential for post-disaster rescue and risk assessment after an earthquake ***,a variety of ground objects,including roads and bare land,have spectral characteristics similar to those of co-seismic landslides,making it difficult to gather information and assess their impact rapidly and ***,an automatic detection method based on a deep learning model,named ENVINet5,with multiple features(ENVINet5_MF)was proposed to solve this problem and improve the detection accuracy of co-seismic *** ENVINet5_MF method is advantageous for co-seismic landslide detection because it features a landslide gain index(LGI)that effectively eliminates the spectral interference of bare land and *** conducted two experiments using multi-temporal PlanetScope images acquired in Hokkaido,Japan,and Mainling,*** accuracy evaluation and rationality analysis show that ENVINet5_MF performed better than comparative methods and that the co-seismic landslide areas detected by ENVINet5_MF were the most consistent with ground reference *** findings of this study suggest that ENVINet5_MF can provide an efficient and accurate method for coseismic landslide detection to ensure a rapid response to co-seismic landslide disasters.

关键词： Co-seismic landslide Automatic detection Deep learning Landslide gain index PlanetScope images

Refined and dynamic susceptibility assessment of landslides using InSAR and machine learning models

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Geoscience Frontiers 2024年第6期15卷 105-120页

作者： Yingdong Wei haijun qiu Zijing Liu Wenchao Huangfu Yaru Zhu Ya Liu Dongdong Yang Ulrich Kamp Shaanxi Key Laboratory of Earth Surface and Environmental Carrying Capacity College of Urban and Environmental SciencesNorthwest UniversityXi’an 710127China Insitute of Earth Surface System and Hazards College of Urban and Environmental SciencesNorthwest UniversityXi’an 710127China Earth and Environmental Sciences Discipline Department of Natural SciencesUniversity of Michigan-DearbornDearbornMI 48104USA

Landslide susceptibility assessment is crucial in predicting landslide occurrence and potential ***,traditional methods usually emphasize on larger regions of landsliding and rely on relatively static environmental conditions,which exposes the hysteresis of landslide susceptibility assessment in refined-scale and temporal dynamic *** study presents an improved landslide susceptibility assessment approach by integrating machine learning models based on random forest(RF),logical regression(LR),and gradient boosting decision tree(GBDT)with interferometric synthetic aperture radar(InSAR)technology and comparing them to their respective original *** results demonstrated that the combined approach improves prediction accuracy and reduces the false negative and false positive *** LR-InSAR model showed the best performance in dynamic landslide susceptibility assessment at both regional and smaller scale,particularly when identifying areas of high and very high *** results were verified using data from field investigations including unmanned aerial vehicle(UAV)*** study is of great significance to accurately assess dynamic landslide susceptibility and to help reduce and prevent landslide risk.

关键词： Landslide susceptibility Machine learning models InSAR Dynamic assessment

Fault Systems and Their Mechanisms of the Formation and Distribution of the Tarim Basin,NW China

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Journal of Earth Science 2014年第1期25卷 169-182页

作者： Liangjie Tang Taizhu Huang haijun qiu Guimei Wan Meng Li Yong Yang Daqing Xie Gang Chen State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Basin & Reservoir Research Center China University of Petroleum Northwest Oilfield Company SINOPEC Oil and Gas Resources Strategic Research Center

This article aims to analyze the main controlling factors of development, distribution and evolution of the fault systems in the Tarim Basin. Based on the seismic profile interpretation, compre- hensive analysis of the drilling and geologic data, six fault systems maybe recognized in the Tarim Basin, they are the foreland fault system of the South Tianshan Mountain, the northern Tarim uplift fault sys- tem, North Tarim depression fault system, central fault system, Southwest Tarim fault system, and Southeast Tarim fault system. It is indicated that the main differences exist at the development, evolu- tion and distribution of the fault systems in the Tarim Basin. The sub-fault systems can be recognized according to the differences of the fault development and distribution in the interior of the fault system. It is characterized that the multi-level differential development and distribution of the fault systems ex- ist in the Tarim Basin. The fault belt developed in the Paleozoic strata mainly distribute at the pa- leo-uplift and paleo-slope in the interior of the Tarim Basin, and the fault belt occurred in the Meso-Cenozoic beds mainly develop at the peripheral foreland depressions. Zonal and segment differ- ential development and distribution of the fault systems also exist in the Tarim Basin. The formation and distribution of the Tarim fault systems is of complex controlling mechanisms. Poly-phase structural movement and tectonic transition controls the multi-phase differential development and distribution of the fault systems in the Tarim Basin. Multi-level differential development and distribution is controlled by multi-level detachment belt and regional unconformities. Zonal and segment differential develop- ment and distribution of the Tarim fault systems maybe controlled by pre-existed basement structural texture. The major direction of the fault systems in the Tarim Basin is controlled by the later stage basin-mountain coupling.

关键词： fault system differential tectonic movement detachment belt geodynamic mechanism Tarim Basin.

Distribution Features of the Nanhua-Sinian Rifts and their Significance to Hydrocarbon Accumulation in the Tarim Basin

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Acta Geologica Sinica(English Edition) 2020年第2期94卷 501-515页

作者： BAI Zhongkai CHENG Minghua CHEN Cheng HUO Junzhou ZHANG Junfeng ZHOU Xingui GAO Yongjin ZHAO Bo qiu haijun HAN Miao YANG Youxing SUN Zhichao MIAO Miaoqing ZHANG Jinhu LI Qingyao Oil and Gas Survey CGSBeijing 100083China Korla Branch Research Institute of BGP KorlaXinjiang 841000China Institute of Geomechanics Chinese Academy of Geological Sciences Beijing 100081China The 6th Gas Production Plant of Petrochina Changqing Oilfield Company Xi'an 710000China China Geological Survey Beijing 100029China

On the basis of reprocessing 34 new two-dimensional spliced long sections(20,191 km) in the Tarim Basin, the deep structure features of the Tarim Basin were analyzed through interpreting 30,451 km of two-dimensional seismic data and compiling basic maps. Seismic interpretation and geological analysis conclude that the Nanhua-Sinian strata are a set of rift-depression depositional systems according to their tectonic and depositional features. The rift valley formed in the Nanhua Period, and the transformation became weaker during the late Sinian Period, which eventually turned into depression. From bottom to top, the deposited strata include mafic igneous, tillite, mudstone, and dolomite. Three major depocenters developed inside this basin during the rift stage and are distributed in the eastern Tarim Basin, the Awati area, and the southwestern Tarim Basin. Among them, the rift in the eastern Tarim Basin strikes in the near east-west direction on the plane and coincides with the aeromagnetic anomaly belt. This represents a strong magnetic zone formed by upwelling basic volcanic rock along high, steep normal faults of the Nanhua Period. Controlled by the tectonic background, two types of sedimentary systems were developed in the rift stage and depression stage, showing two types of sequence features in the Sinian depositional stage. The Nanhua System appears as a wedge-shaped formation, with its bottom in unconformable contact with the base. The rifting event has a strong influence on the current tectonic units in the Tarim Basin, and affects the distribution of source rock in the Yuertus Formation and reservoir beds in the Xiaoerbulake Formation in Lower Cambrian, as well as the gypseous cap rock in Middle Cambrian. The distribution features of the rifts have important and realistic significance for determining the direction of oil and gas exploration in the deep strata of the Tarim Basin. Comprehensive analysis suggests that the Tazhong region is the most favorable

关键词： rift Nanhua Period Sinian Period Tarim Basin

Deciphering protective genomic factors of tumor development in pediatric Down syndrome via deep learning approach to whole genome and RNA sequencing

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Cancer Communications 2024年第11期44卷 1374-1378页

作者： Yichuan Liu Hui-Qi Qu Xiao Chang Frank D Mentch haijun qiu Kenny Nguyen Kayleigh Ostberg Tiancheng Wang Joseph Glessner Hakon Hakonarson Center for Applied Genomics Children’s Hospital of PhiladelphiaPhiladelphiaPennsylvaniaUSA Department of Pediatrics The Perelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPennsylvaniaUSA Division of Human Genetics Children’s Hospital of PhiladelphiaPhiladelphiaPennsylvaniaUSA Division of Pulmonary Medicine Children’s Hospital of PhiladelphiaPhiladelphiaPennsylvaniaUSA Faculty of Medicine University of IcelandReykjavikIceland

Childhood solid tumors represent a significant public health challenge worldwide,with approximately 15,000 new cases annually in the United States and an estimated 300,000 *** syndrome(DS),a genetic disorder characterized by an extra full or partial copy of chromosome 21,results in distinctive developmental and physical ***,individuals with DS exhibit a remarkable resilience against solid tumors compared to the general population,with an overall standardized incidence ratio(SIR)of 0.45,despite their increased susceptibility to hematologic malignancies[1].This paradoxical observation has spurred extensive research aimed at uncovering the biological underpinnings of this natural resistance to solid *** theories suggest that the overexpression of specific genes on chromosome 21 may confer protective benefits(***1 contributes to antiangiogenic effects),and alterations in immune system function may enhance apoptosis and DNA repair pathways in individuals with trisomy 21 DS[2].

关键词： protective alterations Down

Genomic information of children with malignant brain tumors for the prediction of length of hospitalization

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Cancer Communications 2023年第11期43卷 1271-1274页

作者： Yichuan Liu Hui-Qi Qu Xiao Chang Frank D Mentch haijun qiu Kenny Nguyen Xiang Wang Amir Hossein Saeidian Deborah Watson Joseph Glessner Hakon Hakonarson Center for Applied Genomics (CAG) Children's Hospital of PhiladelphiaPhiladelphiaPennsylvaniaUSA Department of Pediatrics The Perelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPennsylvaniaUSA Division of Human Genetics Children's Hospital of PhiladelphiaPhiladelphiaPennsylvaniaUSA Division of Pulmonary Medicine Children's Hospital of PhiladelphiaPhiladelphiaPennsylvaniaUSA Faculty of Medicine University of IcelandReykjavikIceland

Dear Editor:Central nervous system tumors in the brain or spine are the most common solid tumors in children,which accounts for about 25%of cancers in children younger than 15 years of age,and are the most common cause of cancer deaths in children[1].The 5-year survival rate for central nervous system neoplasms has increased dramatically to 74%for patients under 18 years old(97%for benign/borderline malignant tumors)in 2022,compared to 20%in the 1970s[1].Without cure treatments and specific medications for many brain cancers,the dramatic increase of survival rate is largely due to improved hospital care and availability of clinical *** length of hospitalization of pediatric patients with brain cancer is an important indicator of prognosis as it reflects the required medical effort needed to care for these *** length of hospitalization is also critical for the healthcare system as hospital admission is a part of the care trajectory of the respective patients,related to the cost of medical care[2,3].

关键词： malignant neoplasms younger