Geological Journal最新文献

{"title":"Study on the Physical, Chemical and Radioactive Gas—Radon (222Rn) Exhalation Properties of Bleached Sandstone in the Northeast Edge of the Ordos Basin","authors":"Xin Hu,&nbsp;Qiang Sun,&nbsp;Jiakun Wu,&nbsp;Shaoni Wei,&nbsp;Beichen Du,&nbsp;Xiaoying Ding,&nbsp;Jishi Geng","doi":"10.1002/gj.5157","DOIUrl":"https://doi.org/10.1002/gj.5157","url":null,"abstract":"<div>\u0000 \u0000 <p>The northeast margin of Ordos Basin, China has a large area with ‘bleached sandstone’, a unique rock characterised by a low diagenetic degree and poor cementation degree. Long-term wind and hydraulic erosion have led to significant soil erosion, vegetation degradation and low ecological carrying capacity in this region, with huge amounts of sediments being transported to the Yellow River. Therefore, it is critical to investigate the weathering mechanism and physicochemical characteristics of bleached sandstone. In this study, the pore structure, elemental composition, mineral composition and radon exhalation characteristics of the bleached sandstone were analysed using low-temperature nitrogen adsorption instrument, inductively coupled plasma mass spectrometer, polarising microscope and environmental radon detector, respectively. Moreover, the physicochemical characteristics of the bleached sandstone were analysed to determine the correlation among them. The results demonstrated that the degree of pore development in bleached sandstone is significantly higher than that in original rock, and the content of mesopores of size from 2 to 50 nm is the highest. These pores were found to be predominantly slit pores with parallel plate structure. The mineral composition is primarily quartz, feldspar, clay minerals and muscovite, with quartz being the highest. Quartz and feldspar exhibited significant weathering, broken crystals and more impurities. A large amount of biotite was altered to form muscovite. The intergranular spaces of bleached sandstone are filled with heterobase, primarily composed of clay minerals. Additionally, clay minerals formed a ring band structure around the particle skeleton. Bleached sandstone was found to be rich in P, Ba, Mn, Sr, Zr and other elements, with Ba showing the highest proportion. The bleached sandstone is enriched in toxic elements Be, As, Cd, Sb, Hg, Tl and ²³⁸U compared with the original rock, indicating that the latter has a certain degree of adsorption. Among them, Be has the highest enrichment degree. Moreover, it is enriched with light rare earth and deficient in heavy rare earth. δEu and δCe exhibit a slight deficiency. Although the rate of radon exhalation in bleached sandstone is low, it is higher than that of the original rock. The high porosity and micropore content can promote radon exhalation. High ²³⁸U content can enhance radon generation, which exhibited a positive correlation with radon exhalation rate. The research results can provide a reference for ecological management, development and utilisation of bleached sandstone in this region.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"60 7","pages":"1736-1753"},"PeriodicalIF":1.4,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144635301","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}

{"title":"Late Palaeozoic Tectonics and Crustal Growth in the Eastern Central Asian Orogenic Belt: Insights From Newly Discovered Volcanic Rocks on the Northern Margin of the North China Block","authors":"Shijie Wang,&nbsp;Xiaoni Zhang,&nbsp;Xiaojie Dong,&nbsp;Zhongyuan Xu,&nbsp;Fan Feng,&nbsp;Jianlin Chang","doi":"10.1002/gj.5162","DOIUrl":"https://doi.org/10.1002/gj.5162","url":null,"abstract":"<div>\u0000 \u0000 <p>Understanding the Late Palaeozoic accretionary processes responsible for the formation of the eastern Central Asian Orogenic Belt (CAOB) is crucial for unravelling continental growth mechanisms in this region. This study systematically investigates newly identified volcanic rocks in the northern margin of the North China Block (NCB) and Bainaimiao Arc Belt (BAB), aiming to elucidate their petrogenesis, tectonic setting and implications for the evolution of the Paleo-Asian Ocean (PAO). Zircon U–Pb dating reveals that these volcanic rocks were emplaced between 278 and 260 Ma. The intermediate-mafic volcanic rocks exhibit typical subduction-related geochemical signatures, including low TiO₂ contents, enrichment in Rb, Ba, U, K, Pb and Sr., and depletion in Nb and Ta, reflecting derivation from a subduction-modified lithospheric mantle. The acidic volcanic rocks, characterised by high SiO₂ and Al₂O₃ contents and pronounced negative Eu anomalies, are interpreted as products of partial melting of the lower continental crust with fractional crystallisation. The _εHf(<i>t</i>) values range from highly positive in the BAB region to lower values in the NCB, highlighting the incorporation of juvenile crustal material in the north and ancient crustal components in the south. Geochemical and isotopic evidence suggests that the volcanic rocks formed in an Andean-type continental arc during the southward subduction of the PAO beneath the northern margin of the NCB. After 260 Ma, the tectonic setting transitioned to an extensional environment, as reflected in the geochemistry of younger intraplate granites. These findings suggest that the PAO continued subduction until the Late Permian, followed by slab break-off and post-collisional extension. The crustal thickening (40–66 km) and widespread magmatism indicate significant juvenile crustal growth during the Middle to Late Permian. Combined with regional tectonic data, this study provides critical insights into the geodynamic processes driving crustal evolution in the eastern CAOB.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"60 9","pages":"2114-2139"},"PeriodicalIF":2.2,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145013029","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}

{"title":"Sedimentary Provenance Transition in the North Yellow Sea Basin During Tectonic Transition Period of the Eastern North China Craton in the Late Mesozoic and Its Tectonic Implications","authors":"Haitian Yu,&nbsp;Zhongjie Xu,&nbsp;Kunning Cui,&nbsp;Rihui Cheng,&nbsp;Yang Zhou","doi":"10.1002/gj.5159","DOIUrl":"https://doi.org/10.1002/gj.5159","url":null,"abstract":"<div>\u0000 \u0000 <p>The North Yellow Sea Basin in the Eastern North China Craton preserves the Upper Jurassic–Lower Cretaceous, and the sedimentary processes of the basin provide clear tectonic transformation records. The Upper Jurassic–Lower Cretaceous detrital mode analysis of sandstone and Lower Cretaceous detrital zircon U–Pb chronology was used to trace the sedimentary provenance and discuss how the sedimentary process records tectonic transformation. The detrital mode analysis of the sandstone revealed significant compositional changes over time. There were more metamorphic lithics and less feldspar in the Upper Jurassic sedimentary rocks, and fewer metamorphic lithics and more feldspar in the Lower Cretaceous sedimentary rocks. These changes in sandstone composition suggest that the source area of the basin changed. Detrital zircon U–Pb geochronology indicated that the sources of Early Cretaceous sediments were no longer from the Sulu orogenic belt but originated from the Liaodong Peninsula and the Korean Peninsula. The change in the sediment source direction from the Upper Jurassic to the Lower Cretaceous in the North Yellow Sea Basin is a good record of compressional orogenesis during the Late Jurassic and transitioning to strike-slip and extensional processes in the Early Cretaceous.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"60 9","pages":"2075-2094"},"PeriodicalIF":2.2,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145012846","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}

{"title":"Continental Geodynamics and Earth's Environment: Introduction","authors":"P. G. Athira,&nbsp;Bo Hui,&nbsp;Yirang Jang,&nbsp;Cheng-Xue Yang,&nbsp;M. Santosh,&nbsp;M. Satish-Kumar","doi":"10.1002/gj.5161","DOIUrl":"https://doi.org/10.1002/gj.5161","url":null,"abstract":"","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"60 2","pages":"237-239"},"PeriodicalIF":1.4,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143439227","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}

{"title":"Characteristics of Organic Matter Types and Organic Matter Pore Development in Marine–Continental Transitional Shale","authors":"Ke Zhang,&nbsp;Zhaodong Xi,&nbsp;Songhang Zhang,&nbsp;Shuheng Tang,&nbsp;Jianwei Lv,&nbsp;Haikuan Nie,&nbsp;Donglin Lin","doi":"10.1002/gj.5160","DOIUrl":"https://doi.org/10.1002/gj.5160","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 &lt;p&gt;The types of organic matter (OM) significantly impact the hydrocarbon generation potential, reservoir capacity and mechanical properties of shale. Unlike the relatively homogeneous OM in high-maturity marine shale (predominantly solid bitumen), marine–continental transitional shale exhibits a more complex OM assemblage, comprising a mixture of marine and terrestrial kerogen (vitrinite, inertinite and liptinite) and solid bitumen. Accurate differentiation of OM types and quantification of their associated pores are critical for evaluating the reservoir properties of transitional shale formations. This study investigates the Upper Carboniferous Taiyuan Formation shale in the Ningwu Basin, a representative marine–continental transitional system. A correlative microscopy approach integrating scanning electron microscopy (SEM) and optical microscopy was employed to classify OM types, which was further augmented by image segmentation processing techniques to elucidate their pore development characteristics. It reveals disparities in pore development associated with different OM types and proposes an SEM–based identification method for distinguishing them. Results indicated that vitrinite has thick cell walls with vertical fractures, a low grayscale value and a carbon content ranging from 80% to 95%; inertinite has thinner walls with distinct protrusions, a slightly higher grayscale value than vitrinite and carbon content between 75% and 90%; liptinite often retains the morphology of residual vegetation, such as serrated cutinite, flat ring-like sporinite and lens-like structured alginite. Solid bitumen has the highest grayscale value and is amorphous in shape. The development of OM pores is significantly related to the OM type, with the most developed pores found in solid bitumen, which is secondary in origin. This is followed by vitrinite and inertinite, with both secondary and primary pores present. The development of pores in OM is also related to the degree of thermal evolution and the types of surrounding minerals and contact relationships. The Taiyuan Formation transitional shale in the Ningwu Basin exhibits a wide range of total organic carbon (TOC) contents, with an average of 2.14%. Its microscopic components are primarily vitrinite and inertinite (over 50%), with a low degree of thermal maturity (average 1.17%) and low content of rigid minerals (average 42.3%), resulting in poorly developed OM pores and primarily intergranular pores in the storage spaces. However, the high organic carbon content and the strong adsorption capacity of vitrinite still endow the reservoir with the ability to enrich shale gas. The transitional shale possesses unique geological features, including interspersed thin coal seams and sandstone layers. The coal generates hydrocarbons and supplies gas in conjunction with shale, whereas thin sand layers enhance the reservoir capacity of the Taiyuan Formation shale, harbouring the potential for ","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"60 9","pages":"2095-2113"},"PeriodicalIF":2.2,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145012360","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}

{"title":"The Age and Provenance of Zaduo Group in the Qiangtang Basin: Constraints From Zircon U–Pb Geochronology and Palynology","authors":"Yanbin Li,&nbsp;Bo Zheng,&nbsp;Jie Dai,&nbsp;Yanxiong Zhang","doi":"10.1002/gj.5163","DOIUrl":"https://doi.org/10.1002/gj.5163","url":null,"abstract":"<div>\u0000 \u0000 <p>A suite of organic-carbon-rich mudstones has been recently identified in the lower Carboniferous Zaduo Group in the eastern North Qiangtang Basin. Fossils from this group suggest an early Carboniferous depositional age. However, an unconformity recognised between the lower clastic rock unit and the upper carbonate unit of the Zaduo Group indicates a sedimentary hiatus. Here, we report detrital zircon U–Pb geochronological and sporopollen fossil data from the lower clastic rock unit of the Zaduo Group to examine its age. All the eight samples contain Triassic zircons and give a maximum depositional age of Late Triassic, which could also be indicated by the sporopollen results. This age revision has been roughly checked over a spatial span of 300 km in the eastern North Qiangtang Basin. The detrital zircon U–Pb age patterns highly resemble those from the Triassic Bagong Formation in the Qiangtang Basin and Upper Triassic flysch deposits in the Songpan-Garze Terrane. Considering the similarities in organic-carbon content, detrital zircon age patterns, rock assemblages, and spatial distributions between the lower clastic rock unit of the Zaduo Group and the Bagong Formation, it is quite possible that the lower unit of the Zaduo Group is an extension of the Bagong Formation. Moreover, the mudstones of Bagong Formation are the most important source rocks in the Qiangtang Basin, which requires more details and caution to verify the depositional age of the Zaduo Group. Further, the age revision highlights the need for caution to reevaluate the distribution of source rocks in the Qiangtang Basin.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"60 9","pages":"2140-2151"},"PeriodicalIF":2.2,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145012362","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}

{"title":"Petrogenesis and Geochronology of the Dagang Muscovite-Granite in the Central Qinzhou-Hangzhou Metallogenic Belt, South China: Implications for Lithium-Enrichment Mechanism of Granite-Type Lithium Ore Deposit","authors":"Xingfu Jiang,&nbsp;Ting Ding,&nbsp;Bing Pan,&nbsp;Tengxin Li,&nbsp;Yifei Han,&nbsp;Yuzhuo Chen,&nbsp;Xiangjin Zeng","doi":"10.1002/gj.5138","DOIUrl":"https://doi.org/10.1002/gj.5138","url":null,"abstract":"<div>\u0000 \u0000 <p>The central Qinzhou-Hangzhou metallogenic belt in south China hosts large to supra-large hard-rock type lithium ore deposits. This contribution presents an integrated study of zircon U–Pb geochronology, whole-rock and in situ Lu-Hf isotopic geochemistry for the Dagang muscovite-granite type Lithium ore deposit. LA-ICP-MS zircon U–Pb dating of five muscovite-granitic samples yielded weighted average ²⁰⁶Pb/²³⁸U ages of 145 ± 3, 143 ± 1, 143 ± 1, 144 ± 3 and 144 ± 6 Ma, respectively, which are interpreted as the intrusion and mineralization ages of the granite. The Dagang granites have high SiO₂, Na₂O + K₂O and Al₂O₃ contents that are similar to those of strongly peraluminous granites. All the samples are depleted in Ba, Nb and Ti elements, but enriched Rb, Ta, Pb and U elements, as well as they have large negative ε_Hf(t) values of −11 ± 1.3, −8.1 ± 0.6, −6.7 ± 1.5, −8.6 ± 0.9 and −10.3 ± 2.3, which are indicative of dominantly Mesoproterozoic continental crustal metasedimentary in origin. There is no obvious correlation between SiO₂ and Li, whereas SiO₂/Al₂O₃ show negative correlation with Li, in combination with positive correlations of LOI, Rb, Cs and Li, as well as consensual genetic views of high-U zircons, it is proposed that lithium enrichment of the muscovite-granite type lithium ore deposit occurred late stage of crystallisation differentiation of silicic magmatic system during Al-rich mineral precipitation, and are superimposed of hydrothermal alteration.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"60 8","pages":"1866-1884"},"PeriodicalIF":2.2,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144814917","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}

{"title":"Driving Mechanism of Synergistic Efficiency in Reducing Pollution and Carbon: Evidence From 249 Green Parks","authors":"Chuang Li,&nbsp;Keke Li,&nbsp;Liping Wang","doi":"10.1002/gj.5133","DOIUrl":"https://doi.org/10.1002/gj.5133","url":null,"abstract":"<div>\u0000 \u0000 <p>The green park serves as a significant spatial carrier for China's strategy to become a manufacturing powerhouse and promote industrial transformation and upgrading. It is a crucial platform for implementing and driving the transformation and development of green manufacturing, promoting green development and harmonious coexistence between man and nature in the current era. The main focus of this study is a total of 249 green parks announced by the Ministry of Industry and Information Technology, and it employs the multi-time point PSM-DID method to investigate 280 prefecture-level cities. The results show that: (1) The coefficient of the green park certification policy is estimated to have a significantly negative impact at the 1% significance level. (2) The green park certification facilitates the integration of pollution reduction and carbon reduction efforts by leveraging green technology innovation and government support. (3) The promoting effect of green industrial park certification has regional consistency and resource heterogeneity. Therefore, it is of great significance to study the effects and pathways of green park certification on the synergies of carbon and pollution reduction.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"60 6","pages":"1431-1452"},"PeriodicalIF":1.4,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206792","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}

{"title":"Multiple Sets of Unconformity Migration Capacity and Their Influence on Hydrocarbon Accumulation in the Bozhong Area of the Bohai Bay Basin","authors":"Lei Pang,&nbsp;Yonghe Sun,&nbsp;Ming Hu,&nbsp;Tongwen Sun,&nbsp;Shangming Shi","doi":"10.1002/gj.5129","DOIUrl":"https://doi.org/10.1002/gj.5129","url":null,"abstract":"<div>\u0000 \u0000 <p>The Bohai Bay Basin is one of China's largest basins in terms of discovered hydrocarbon reserves. In this basin, unconformities serve as key pathways for the lateral migration of hydrocarbons, with the T8, T5 and T2 unconformities being the main ones developed here. Studying how these three unconformities differ in migration capacity is therefore essential for understanding hydrocarbon accumulation. By using logging data, along with measurements of porosity, permeability and sedimentary facies distribution, we analysed and compared the structures, physical properties and continuity of these unconformities. Based on this analysis, we linked hydrocarbon reserves per unit area to migration probability and developed a model for migration range. The results show that: (1) Although the T8 unconformity has poorer porosity and permeability compared to T5, it provides better continuity for migration channels, making T8 the main pathway in depressions, while T5 is more discontinuous and thus likely to form lithologic reservoirs in these areas. (2) T8 and T5 overlap gradually along the uplift belts, where both the porosity-permeability and thickness of these unconformities improve, and T2 has both good continuity and physical properties, facilitating lateral migration on the uplift belts. (3) Compared with other unconformities, T2 is the primary migration pathway above the uplift areas.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"60 6","pages":"1394-1408"},"PeriodicalIF":1.4,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206791","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}

{"title":"A Review of the Cretaceous Ichnology of Tethys-Related Basins in India: New Record From the Bagh Group","authors":"Apurva D. Shitole,&nbsp;Satish J. Patel,&nbsp;Jehova Lalmalsawm Darngawn,&nbsp;Jaquilin K. Joseph","doi":"10.1002/gj.5139","DOIUrl":"https://doi.org/10.1002/gj.5139","url":null,"abstract":"<div>\u0000 \u0000 <p>The Narmada Basin in west-central India forms the northern part of the Central Indian Tectonic Zone (CITZ). The Cretaceous Bagh Group rocks of the Western Lower Narmada Valley (WLNV) succession was studied for sedimentary facies analysis and ichnology. Textural and mineralogical characteristics along with primary and secondary sedimentary structures revealed 11 lithofacies, of which the calcareous sandstone, fine-grained sandstone-siltstone-shale and sandy/silty allochemic limestone lithofacies are highly bioturbated. WLNV contains a well-preserved, less diverse, and relatively abundant ichnofauna; a total of 24 ichnospecies belonging to 15 ichnogenera with pseudotrace fossils are identified and described. The trace fossils belong to the <i>Skolithos</i>, <i>Cruziana</i> and <i>Glossifungites</i> Ichnofacies. The <i>Skolithos</i> Ichnofacies suggest an upper shoreface environment with moderate-to-high energy conditions and shifting substrate; the <i>Cruziana</i> Ichnofacies suggest a lower shoreface environment with low-to-moderate sedimentation rates and energy conditions and the <i>Glossifungites</i> Ichnofacies suggest dewatering of sediments and a slow rate of sedimentation. Early ichnological studies in the different Tethys-related Cretaceous basins of the Indian subcontinent (Eastern Lower Narmada Valley, Kachchh, Cauvery, Jaisalmer, Barmer and Saurashtra) primarily focused on identifying the trace fossils, describing the new species and interpreting them in relation to trace producers and depositional environment. However, many of the ichnogenera and ichnospecies established from these basins need special attention because they either have been described as invalid, revised or assigned an unclear taxonomic status. The Cretaceous trace fossils reported to date from these basins are compiled along with their paleoenvironmental interpretation. The study also discusses the present status of the ichnogenera and ichnospecies names of the trace fossils reported to date from these basins. These data can be further used to enhance our understanding of how paleoenvironmental conditions control the distribution of trace-making communities across space and time.</p>\u0000 </div>","PeriodicalId":12784,"journal":{"name":"Geological Journal","volume":"60 6","pages":"1488-1514"},"PeriodicalIF":1.4,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206963","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}