Earth Sciences最新文献

{"title":"A Review of Integration Techniques of Multi-Geoscience Data-Sets in Mineral Prospectivity Mapping","authors":"Neelesh Katiyar, A. Kulshreshtha, Pramod Singh","doi":"10.11648/j.earth.20241304.12","DOIUrl":"https://doi.org/10.11648/j.earth.20241304.12","url":null,"abstract":"In every sphere and utility aspects of human life, there is need of metals and construction materials. Minerals which are below the near subsurface is almost explored on the basis of direct geospatial evidences. There is high demand of metals and other materials which are mined below the surface of earth In the current landscape, there's a demand for faster and more precise exploration strategies, particularly emphasizing Greenfield exploration and deep-seated mineralization. This paper conducts a comprehensive review of existing methodologies for integrating multi-geoscience datasets aimed at mineral prognostication, with a focus on identifying the most precise and authentic Artificial Intelligence (AI) - based data integration techniques. Additionally, it offers insights into the current status of mineral exploration in India and the global evolution of data integration practices. Several types of geoscientific datasets i.e. geological, geophysical, geochemical and geospectral data have to be organized in geospatial domain for meaningful mineral exploration outcome. These datasets have been processed to extract exploratory indicator layers for data integration are called Mineral Prospectivity Mapping (MPM). Indeed, MPM is a multiple criterion decision making (MCDM) task which provide a predictive model for categorizing of sought areas in terms of ore mineralization. There after based upon Geological factors i.e. lithology, structure, shear & fault zones, alteration zones etc. of sought mineralized area, selection of drilling parameters (depth, angle, level, type, rpm, feed) is done for resource assessment. Literature survey suggests that minerals exploration by integrated approach on the basis of these datasets is still poorly performed. It has been gathered that knowledge-driven data integration using Fuzzy Gamma Operator and Multiclass Index Overlay method is best suited for mineral exploration. In past, few researchers of other countries have exploited data integration approach with encouraging results. Despite the abundance of data available in India, this approach has not been utilized very successfully and no standard protocols exist even for decision making for drilling operation. Thus, it's evident that employing the Fuzzy Inference System (FIS) algorithm, particularly utilizing the Fuzzy Gamma Operator and Multiclass Index Overlay integration method, remains underutilized in designing standardized operating procedures (SOP) for mineral exploration in India and decision-making for drilling operations. This approach holds promise for minimizing time lag and optimizing resources such as manpower, instruments, and finances.\u0000","PeriodicalId":508872,"journal":{"name":"Earth Sciences","volume":"25 28","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141836069","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":"Lithostratigraphy and Petrography of Mesozoic Sedimentary Rocks of Lemi Area, North Shewa, Central Ethiopia","authors":"Ajebush Wuletaw, Bishaw Mihret","doi":"10.11648/j.earth.20241304.11","DOIUrl":"https://doi.org/10.11648/j.earth.20241304.11","url":null,"abstract":"The Mesozoic sedimentary basins in Ethiopia, particularly the Central Ethiopia, and Blue Nile Basin within the central main Ethiopian rift region are characterized by a diverse range of volcano-sedimentary rocks dominated by sedimentary sequences. The lithostratigraphy and petrology of Mesozoic sedimentary rocks of Lemi area, North Shewa, in Central Ethiopia within the Blue Nile basin, is described based on detailed field observations, lithostratigraphic analysis, petrographic examinations. The lithological units identified during fieldwork include Mudstone, Sandstone, and Basaltic rock formations. The sandstone unit in the study covers an estimated average thickness is 237 meters with intercalations of thinly bedded mudstone. The average thickness of each sandstone units (coarse (23 meters), medium (90 meters) and fine-grained (115 meters) sandstone unit) are varying from place to place within the study area. The stratigraphic section logs in four each block (Geza Washa, Dalota, Ruka, and Gosh Wiha) shows coarsening upward indicating the depositional environment transition from deep marine to the fluvial environment. The results of the study reveal the geological history and paleoenvironmental conditions of the Mesozoic sedimentary rocks in the Lemi area. This study contributes to our understanding of the geological processes that have influenced the formation of the Lemi area and provides valuable interpretations of regional geology.\u0000","PeriodicalId":508872,"journal":{"name":"Earth Sciences","volume":" 80","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141680289","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":"The Application of Dual Frequency IP Survey to Identify the Concealed Ore Body in Pilbara Craton, Australia: A Case Study from Calvert Gold Deposit","authors":"Zhangle Liu, Yawen Zheng","doi":"10.11648/j.earth.20241302.11","DOIUrl":"https://doi.org/10.11648/j.earth.20241302.11","url":null,"abstract":"The Mallina Basin in Western Australia, situated in the central part of the Pilbara Craton which is one of the world's oldest cratons, is a structurally deposited basin subjected to multiple episodes of deformation and magmatic intrusion. The Calvert gold deposit in Mallina Basin is heavily covered by Quaternary, thus, it is hardly to identify any distinct mineralization indicators, and there is no any significant progress in exploration so far. The SQ-3C dual frequency induced polarization facility that is developed by China is introduced to carry out the dual frequency IP survey, the author’s team have tested all the types of different rock samples to collect the geophysical parameters in the Calvert area, and the selection of suitable facility and working frequency is based on the geological characters of the Calvert deposit and the geophysical parameters of rocks, and some processes are undertaken to weaken the interference triggered by the electromagnetic coupling, and an IP anomaly zone was delineated. Through the drilling program in the IP anomaly zone, a gold ore body that has the same orientation with the IP anomaly zone was controlled; this result demonstrated the dual frequency IP survey is effective in the local area and provide an efficient technical method for the mineralization prospecting, and this geophysical survey project sets an example for the familiar type of gold deposit in the local area.","PeriodicalId":508872,"journal":{"name":"Earth Sciences","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140753448","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":"Research on the Differences of Climatic Characteristics of Different Levels of Gale Disasters in Northern Xinjiang","authors":"Fan Hu, Chenliang Liu, Ming Hu, Xiaofeng Xie, Xinsheng Lv","doi":"10.11648/j.earth.20241301.14","DOIUrl":"https://doi.org/10.11648/j.earth.20241301.14","url":null,"abstract":"Disaster damage index and disaster grades are constructed by using multi index method on the basis of overall consideration, based on the disaster data of 671 wind disasters taking place in 38 counties (cities) in Northern Xinjiang from 1980 to 2019, and by selecting six disaster factors including the death toll, the number of collapsed houses, the number of collapsed sheds, the number of damaged green houses, the number of livestock deaths and the affected area caused by each wind disaster event. The results show that in space, wind disasters are the most frequent in Bortala Mongol Autonomous Prefecture and Altay Prefecture, and the losses caused by wind disasters are the most severe along Tianshan Mountain in Northern Xinjiang and Altay Prefecture. In terms of time, wind disasters in Northern Xinjiang are mainly concentrated in spring and summer (from March to August), of which April and May are the months with the highest frequency. In recent 40 years, the occurrence times and extent of harm of wind disasters in Northern Xinjiang have shown a linear growth trend; the occurrence times of wind disasters at various grades and the extent of harm have increased significantly during the years around 2000; it is found, upon examination, there was a sudden change of climate in the late 1990s, and the increase rate is inversely proportional to the grade of wind disaster. Therefore, the wind disasters in Bortala Mongol Autonomous Prefecture, Altay Prefecture and the area along Tianshan Mountain in Northern Xinjiang from April to May each year are the areas in Northern Xinjiang with the highest wind disaster risk. The study can provide scientific basis for wind disaster prevention and control in Northern Xinjiang.","PeriodicalId":508872,"journal":{"name":"Earth Sciences","volume":"18 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140422404","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":"Implication of Epithermal Mineralization as Proxy for Geothermal Energy Potentiality in Puga, Ladakh UT, India","authors":"Archisman Dutta, P. Mishra, Ayodhya Prasad Thapliyal, Vishal V. Sakhare, Pramod Kumar Singh, Biswajit Ray","doi":"10.11648/earth.20241301.12","DOIUrl":"https://doi.org/10.11648/earth.20241301.12","url":null,"abstract":"","PeriodicalId":508872,"journal":{"name":"Earth Sciences","volume":"78 3-4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139880095","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":"Implication of Epithermal Mineralization as Proxy for Geothermal Energy Potentiality in Puga, Ladakh UT, India","authors":"Archisman Dutta, P. Mishra, Ayodhya Prasad Thapliyal, Vishal V. Sakhare, Pramod Kumar Singh, Biswajit Ray","doi":"10.11648/earth.20241301.12","DOIUrl":"https://doi.org/10.11648/earth.20241301.12","url":null,"abstract":"","PeriodicalId":508872,"journal":{"name":"Earth Sciences","volume":"56 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139820290","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":"Favorable Reservoir Formation Models for Nearshore Underwater Fans in Narrow and Long Graben Type Fault Basins: A Case from Botai Sag of Yitong Basin","authors":"Ke Qin, Li He, Chaolong Ding, Li Li, Wang Lei, Lu Yao, Cheng Jie, Xu Fei","doi":"10.11648/j.earth.20241301.11","DOIUrl":"https://doi.org/10.11648/j.earth.20241301.11","url":null,"abstract":"","PeriodicalId":508872,"journal":{"name":"Earth Sciences","volume":"102 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139614666","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":"Mangrove Interspecies Classification Based on UAV Hyperspectral Images","authors":"Lina Yi, Guifeng Zhang, Feiyang Lu, Yongcha Zhou","doi":"10.11648/j.earth.20231206.16","DOIUrl":"https://doi.org/10.11648/j.earth.20231206.16","url":null,"abstract":"","PeriodicalId":508872,"journal":{"name":"Earth Sciences","volume":"753 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139179674","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":"Electrical Resistivity Imaging for Characterizing the Shallow Landslide Hazard Site at Kutupalong Rohingya Refugee Camps of Ukhiya, Cox's Bazar, Bangladesh","authors":"Abu Taher Mohammad Shakhawat Hossain, Mohammad Hasan Imam, Hossain Mohammad Sayem, Purba Anindita Khan, Mohammad Emdadul Haque, M. Khatun, Sheikh Jafia Jafrin, Tonmoy Dutta, Hasan Mahmud","doi":"10.11648/j.earth.20231206.15","DOIUrl":"https://doi.org/10.11648/j.earth.20231206.15","url":null,"abstract":"","PeriodicalId":508872,"journal":{"name":"Earth Sciences","volume":"255 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139211190","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":"Genesis and Classification of Soils on a Toposequence in Guelendeng, Southwest Chad","authors":"Agoubli Issiné, Touroumngaye Goalbaye, Ahmat Amine Cherif, Hara Toukou","doi":"10.11648/j.earth.20231206.14","DOIUrl":"https://doi.org/10.11648/j.earth.20231206.14","url":null,"abstract":"","PeriodicalId":508872,"journal":{"name":"Earth Sciences","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139212884","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}