Journal of the Geological Society of India最新文献

Proceedings of the Annual General Meeting of the Geological Society of India – 2025, Nainital, Uttarakhand 印度地质学会年会论文集- 2025，Nainital, Uttarakhand

4区地球科学

Journal of the Geological Society of India Pub Date : 2025-12-01 DOI: 10.17491/jgsi/2025/174313

K.V. Krishnamurthy, N. Rajendran

引用次数: 0

Prospects and Challenges in Geology and Gemmology of Gemstones in India 印度宝石地质学和宝石学的前景与挑战

4区地球科学

Journal of the Geological Society of India Pub Date : 2025-09-01 DOI: 10.17491/jgsi/2025/174257

Jadaba Nanda Das

引用次数: 0

A Comparative Analysis of Citrine and Natural Clear Quartz Structural Characteristics Studies 黄水晶与天然透明石英结构特征对比分析研究

4区地球科学

Journal of the Geological Society of India Pub Date : 2025-08-01 DOI: 10.17491/jgsi/2025/174233

Arafa A. Yagob

{"title":"A Comparative Analysis of Citrine and Natural Clear Quartz Structural Characteristics Studies","authors":"Arafa A. Yagob","doi":"10.17491/jgsi/2025/174233","DOIUrl":"https://doi.org/10.17491/jgsi/2025/174233","url":null,"abstract":"ABSTRACT This study was carried out using the X-ray diffraction (XRD) technique to analyse, highlight, and investigate the differences and similarities in the contents and the crystal structures of citrine and natural clear quartz (rock crystal). Both samples were prepared by mechanical milling to get a homogeneous powder for 30 seconds. Then the sample was put in the XRD specimen holder. The experimental X-ray patterns of natural clear quartz (rock crystal) and citrine crystal were analysed; the unit cell parameters, space group, and atomic positional coordinates were determined. The natural clear quartz (rock crystal) and the citrine crystal have the same chemical formula; they belong to the quartz family of silicon dioxide (SiO2); the same crystal structure is hexagonal; the same space group is P3121; and the atomic number in the unit cell (Z) is equal to 3. While the space group numbers are 154 in the citrine crystal and 152 in the rock crystal, a very slight difference was found in the atomic density, the lattice parameters, and the volume of a unit cell between the two samples. This difference is because of the presence of trace impurities in the crystal lattice of citrine, such as muscovite KAl2(AlSi3O10)(OH)2 and anorthite CaAl2Si2O8. This study provides valuable insights into the crystallographic properties of these two quartz varieties and contributes to our understanding of their properties and formation.","PeriodicalId":50001,"journal":{"name":"Journal of the Geological Society of India","volume":"101 8","pages":"1280-1282"},"PeriodicalIF":0.0,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147894863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Psychosocial profiles and their correlation with physical diagnosis in temporomandibular disorders, a preliminary report. 初步报告：颞下颌关节紊乱症患者的社会心理状况及其与身体诊断的相关性。

IF 1.5 4区地球科学

Journal of the Geological Society of India Pub Date : 2025-01-01 Epub Date: 2022-06-13 DOI: 10.1080/08869634.2022.2084224

Mohammad S Alrashdan, Mahmoud Khaled Al-Omiri

{"title":"Psychosocial profiles and their correlation with physical diagnosis in temporomandibular disorders, a preliminary report.","authors":"Mohammad S Alrashdan, Mahmoud Khaled Al-Omiri","doi":"10.1080/08869634.2022.2084224","DOIUrl":"10.1080/08869634.2022.2084224","url":null,"abstract":"Objective: To assess representative psychosocial features in a group of temporomandibular disorder (TMD) patients from Jordan using Axis II of the Diagnostic Criteria for TMD (DC/TMD) protocol.Methods: Ninety-eight TMD patients were examined according to Axis I DC/TMD protocol in addition to assessment of their pain-related disability, psychological distress, and stress reactivity.Results: Just under half of the patients (49%) had high intensity of characteristic pain (self-reported TMJ-related pain) and one-third (32%) had high levels of pain-related disability. Furthermore, significant proportions of patients expressed moderate-severe degrees of distress and stress reactivity (41% and 39%, respectively). Significant correlations were identified between the Graded Chronic Pain Scale (GCPS) and each of the pain-related TMD subgroups.Conclusion: TMD patients are susceptible to high levels of pain-related psychosocial impairment, and clinicians should be aware of the possible correlations between the physical TMD diagnosis and specific psychosocial features during treatment planning.","PeriodicalId":50001,"journal":{"name":"Journal of the Geological Society of India","volume":"78 1","pages":"91-99"},"PeriodicalIF":1.5,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74274313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Landslide Occurrences under Diverse Landuse/cover in Lower Kosi Watershed, Central Himalaya 喜马拉雅中部下科西流域不同土地利用/覆盖下的滑坡发生率

IF 1.3 4区地球科学

Journal of the Geological Society of India Pub Date : 2023-12-20 DOI: 10.1007/s12594-023-2525-4

Vinita Joshi, Anita Pande

{"title":"Landslide Occurrences under Diverse Landuse/cover in Lower Kosi Watershed, Central Himalaya","authors":"Vinita Joshi, Anita Pande","doi":"10.1007/s12594-023-2525-4","DOIUrl":"https://doi.org/10.1007/s12594-023-2525-4","url":null,"abstract":"Present study was related to land degradation after landslide and risk analysis of Lower Kosi watershed in Central Himalaya using RS and GIS. The study was aimed to identifying the relation of land use with landslide activity in Himalayan terrain and landslide management. The landslide inventory map was prepared for the detailed study with the help of Google Earth Image and field verifications. Landslide had been sub-categorized into two categories; natural and road induced. The land use map was prepared from Google Earth image followed by toposheets. Statistical analysis of landslide frequency and density as well as frequency and density ratios were applied. The collected data was evaluated in combination with GIS. The relationship between land use categories and landslide occurrences was determined. The landslide frequency ratio (FR) and density ratio (DR) were analyzed. The FR and DR value of 1 is an average value. Hence, the value of ratio more than 1 signifies a strong relationship between landslides and the given factor while ratio values less than 1 registers a poor relationship. The FR and DR values were >1.0 in the areas of fallow land, barren/rocky land, agricultural land and open forest revealing a strong relation to landslide processes while the lesser values of FR and DR in ‘dense forest’ area determines the impact of sufficient vegetation cover on the least occurrence of landslides. This study may be applicable for new and existing land use planning projects as the adopted methodology provides rapid estimation of landslide vulnerability of the area.","PeriodicalId":50001,"journal":{"name":"Journal of the Geological Society of India","volume":"56 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138820156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Recent Trends and Techniques in the Study of Brittle Deformation: Implications in Upper Crustal Fluid Flow 脆性变形研究的最新趋势和技术：上地壳流体流动的影响

IF 1.3 4区地球科学

Journal of the Geological Society of India Pub Date : 2023-12-20 DOI: 10.1007/s12594-023-2535-2

Tridib Kumar Mondal

引用次数: 0

Super High Organic Sulphur (SHOS) in Tertiary coals of North-East India 印度东北部第三纪煤炭中的超高有机硫（SHOS）

IF 1.3 4区地球科学

Journal of the Geological Society of India Pub Date : 2023-12-20 DOI: 10.1007/s12594-023-2538-z

Manabendra Nath

引用次数: 0

Indian Endeavour in Antarctic Geoscience 印度在南极地球科学方面的努力

IF 1.3 4区地球科学

Journal of the Geological Society of India Pub Date : 2023-12-20 DOI: 10.1007/s12594-023-2534-3

Rasik Ravindra

引用次数: 0

Numerical Analysis of a Tunnel Passing through Jointed Rockmass 隧道穿越节理岩体的数值分析

IF 1.3 4区地球科学

Journal of the Geological Society of India Pub Date : 2023-12-20 DOI: 10.1007/s12594-023-2524-5

Harshal Verma, Arunava Ray, Rajesh Rai, Bappaditya Manna, T. N. Singh

{"title":"Numerical Analysis of a Tunnel Passing through Jointed Rockmass","authors":"Harshal Verma, Arunava Ray, Rajesh Rai, Bappaditya Manna, T. N. Singh","doi":"10.1007/s12594-023-2524-5","DOIUrl":"https://doi.org/10.1007/s12594-023-2524-5","url":null,"abstract":"With the increase in the pace of development, the demand for tunnels has increased in recent years. Analysing the stability of a tunnel in a fractured rock mass is a very challenging and cumbersome activity. The tunnel stability depends on the strength of the rock, joints bolt strength, in-situ stresses, and their orientation. This paper focuses on constructing tunnels in fractured/jointed rock mass. Three different software namely Rocscience Phase2 (finite element based), FLAC3D (finite volume based) and PFC3D (distinct element based), were used to analyse the performance and stability under static and dynamic loading conditions. The geomaterial properties used for the analysis were taken from data obtained after laboratory testing and based on available literature. The effect of joint orientation and bolt length was analysed using Phase 2 assuming plain strain conditions. The effect of earthquake and performance of fully grouted, energy absorbing and deformation-controlled bolts under seismic loading conditions were compared using FLAC3D. While the 3D distinct element analysis of geometry was performed using PFC3D to evaluate the effect of joints and their orientation. The performance of the different types of bolts was also analysed numerically. The behaviour of bolts can be customised using the ‘fish‘function. The results indicate that analysis must incorporate the fusion of various numerical simulation techniques like finite element-, finite volume- and distinct element-based methods for more reliable results.","PeriodicalId":50001,"journal":{"name":"Journal of the Geological Society of India","volume":"5 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138819965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Estimation of 226Ra, 232Th and 40K activity from the Soil Samples of Ganderbal and Budgam Districts of Jammu and Kashmir, India 估算印度查谟和克什米尔甘德巴尔和布德加姆地区土壤样本中的 226Ra、232Th 和 40K 放射性活度

IF 1.3 4区地球科学

Journal of the Geological Society of India Pub Date : 2023-12-20 DOI: 10.1007/s12594-023-2531-6

Asiya Rahim, Savidh Khan, Asha Rani, Km Abida, Rohit Mehra, Sansar Chand

{"title":"Estimation of 226Ra, 232Th and 40K activity from the Soil Samples of Ganderbal and Budgam Districts of Jammu and Kashmir, India","authors":"Asiya Rahim, Savidh Khan, Asha Rani, Km Abida, Rohit Mehra, Sansar Chand","doi":"10.1007/s12594-023-2531-6","DOIUrl":"https://doi.org/10.1007/s12594-023-2531-6","url":null,"abstract":"The study of radionuclides is very important in our daily life as these impose health implications to the general public. In present study the estimation of radionuclides in Ganderbal and Budgam districts of Kashmir Province using NaI(Tl) gamma-ray spectrometer has been carried out. Radium, thorium, and potassium activity concentrations have been observed to range from 25±3 to 33±5 Bqkg−1, 3±2 to 11±3 Bqkg−1 and 415±63 to 601±80 Bqkg−1with average values of 29 Bqkg−1, 5 Bqkg−1 and 514 Bqkg−1, respectively. The radium equivalent activity (Raeq) for the soil samples has been evaluated and was found in the range of 107 to 128 Bqkg−1 with the mean value of 116 Bqkg−1. It has been inferred that the radium equivalent activity (Raeq) lies in the permissible limits of 370 Bqkg−1 set by United Nations Scientific Committee on the Effects of Atomic Radiation. Absorbed dose and annual effective dose (indoor and outdoor) values were found to vary from 34 to 43 nGyh−1, 0.17 to 0.21 mSv and 0.04 to 0.05 mSv, respectively. Also, hazard indices (external and internal) are calculated from the specific concentration of radium, thorium and potassium which are found less than unity as recommended by organization for economic cooperation and development (OECD). Therefore, it can be concluded that the present study area does not pose any health implication to the general public.","PeriodicalId":50001,"journal":{"name":"Journal of the Geological Society of India","volume":"35 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138819967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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