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| 1 | A review on palaeogeographic implications and temporal variation in glaucony composition显示文摘This study presents a review on palaeogeographic implications and temporal variations of glaucony coveringboth modern and ancient records.Phanerozoic glaucony preferably forms in a shelf depositional setting.Deep marine conditions and low seawater temperature discourage formation of glaucony.Around 75%of glaucony is recorded from the Cretaceous to the Holocene sediments,which are related to the abundance of the most common substrates,faecal pellets and bioclasts.TFe_2O_3(total),Al_2O_3,K_2O and MgO contents of glaucony vary appreciably through geological time.While TFe_2O_3 content of most Mesozoic and Cenozoic glaucony exceeds 20%,it is always less than 20%in Precambrian varieties.High K_2O,Al_2O_3,MgO and low TFe_2O_3 distinguish the Precambrian glaucony from its Phanerozoic counterpart.Precambrian glaucony,preferably formed within a K-feldspar substrate,is always rich in potassium irrespective of its degree of evolution,while high K-content in Phanerozoic evolved glaucony indicates significant stratigraphic condensation.K_2O us.TFe_2O_3 relationship of glaucony exhibits three different evolutionary trends corresponding to three common modes of origin.Depositional conditions may influence the composition of glaucony as slightly reducing conditions favour Fe enrichment,whereas oxidising conditions cause Fe depletion in glaucony. | Santanu Banerjee Udita Bansal Anup Vilas Thorat | 2016 | Journal of Palaeogeography2016，5，1： | 10 |
| 2 | Siliciclastic-carbonate mixing modes in the river-mouth bar palaeogeography of the Upper Cretaceous Garudamangalam Sandstone(Ariyalur, India)显示文摘Mixed siliciclastic-carbonate rocks constitute the Upper Cretaceous Garudamangalam Sandstone Formation, Ariyalur(India), and offer an opportunity to look into the broad spectrum of mixing of compositionally and genetically different components. The palaeogeographic reconstruction indicates that deposition in the nearshore zone differed strongly in energy and active processes operatives due to the presence of a shore-parallel river-mouth bar. The western wing of the Mississippi bird-foot delta is considered to be a present-day analogon. Facies analysis in combination with petrography clearly shows the variability in palaeoenvironmental characteristics, both biogenic and non-biogenic. It also indicates diagenetic uptake of carbonate that filled empty spaces and actively replaced original components. Chemical staining followed by limited application of cathodoluminescence and energy dispersive X-ray analysis(EDAX) hint at intricacies in mixing arising from the compositional variations in the carbonate components. A model of siliciclastic-carbonate sediment mixing, including both the depositional and diagenetic developments, is presented; it is aimed at generating a better overview of, and a deeper insight into, the physical and chemical mechanisms involved. | Subir Sarkar Nivedita Chakraborty Anudeb Mandal Santanu Banerjee Pradip K.Bose | 2014 | Journal of Palaeogeography2014，3，3： | 4 |
| 3 | Petrography of Middle Jurassic to Early Cretaceous sandstones in the Kutch Basin,western India:Implications on provenance and basin evolution显示文摘This paper investigates the provenance of Middle Jurassic to Early Cretaceous sediments in the Kutch Basin, western India, on the basis of mineralogical investigations of sandstones composition(Quartz-Feldspar-Lithic(QFL)fragment), Zircon-Tourmaline-Rutile(ZTR) index, and mineral chemistry of heavy detrital minerals of the framework.The study also examines the compositional variation of the sandstone in relation to the evolution of the Kutch Basin, which originated as a rift basin during the Late Triassic and evolved into a passive margin basin by the end Cretaceous. This study analyzes sandstone samples of Jhumara, Jhuran and Bhuj Formations of Middle Jurassic,Upper Jurassic and Lower Cretaceous, respectively, in the Kutch Mainland. Sandstones record a compositional evolution from arkosic to subarkosic as the feldspar content decreases from 68% in the Jhumara Formation to 27%in the Bhuj Formation with intermediate values in the Jhuran Formation. The QFL modal composition indicates basement uplifted and transitional continental settings at source. Heavy mineral content of these sandstones reveals the occurrence of zircon, tourmaline, rutile, garnet, apatite, monazite and opaque minerals. Sub-rounded to well-rounded zircon grains indicate a polycyclic origin. ZTR indices for samples in Jhumara, Jhuran and Bhuj Formations are 25%, 30% and 50% respectively. Chemistry of opaque minerals reveals the occurrence of detrital varieties such as ilmenite, rutile, hematite/magnetite and pyrite, in a decreasing order of abundances. Chemistry of ilmenites in the Jhumara Formation reveals its derivation from dual felsic igneous and metabasic source, while those in Jhuran and Bhuj Formations indicate a metabasic derivation. Chemistry of garnet reveals predominantly Fe-rich(almandine) variety of metabasic origin. X-ray microscopic study provides the percentage of heavy minerals ranging from 3% to 5.26%. QFL detrital modes reflect the evolution of the basin from an active rift to a passive margin basin during the Mesozoic. Integration of results from QFL modal composition of the sandstones, heavy mineral analysis and mineral chemistry, suggests sediment supply from both northern and eastern highlands during the Middle Jurassic. The uplift along the Kutch Mainland Fault in the Early Cretaceous results in curtailment of sediment input from north. | Angana Chaudhuri Santanu Banerjee Emilia Le Pera | 2018 | Journal of Palaeogeography2018，7，3： | 4 |
| 4 | Origin and geochemical characterization of the glauconites in the Upper Cretaceous Lameta Formation, Narmada Basin, central India显示文摘This study presents geochemical characteristics of glauconites in estuarine deposits within the Maastrichtian Lameta Formation in central India. Resting conformably over the Bagh Group, the Lameta Formation consists of ~4-5 m thick arenaceous, argillaceous and calcareous green sandstones underlying the Deccan Traps. The sandstone is friable, medium-to coarse-grained, well-sorted and thoroughly crossstratified, and contains marine fossils. Detailed petrography, spectroscopy and mineral chemistry indicates unique chemical composition of glauconite with high K_2O, MgO, Al_2O_3 and moderate TFe_2O_3. Glauconite is formed by the replacement of K-feldspars, initially as stringers in the cleavages and fractures of feldspars. Incipient glauconite subsequently evolves fully, appearing as pellets. Fully-evolved glauconite pellets often leave tiny relics of K-feldspar. XRD exhibits characteristic peak of 10A from basal(001)reflection of glauconite, indicating the 'evolved' character. The K_2O content of glauconites in the Lameta Formation varies from 5.51% to 8.29%, corroborating the 'evolved' to 'highly-evolved' maturation stage.The TFe_2O_3 content of glauconite varies from 12.56% to 18.90%. The PASS-normalized-REE patterns of glauconite exhibit a 'hat-shape' confirming the authigenic origin of glauconites. The slightly-negative to slightly-positive Ce anomaly value and the moderate TFe_2O_3 content of glauconite agree well with a suboxic,estuarine condition. The replacement of K-feldspar by the glauconite contributes towards the high K_2O content. Compositional evolution of glauconites in the Lameta Formation is similar to those observed in many Precambrian sedimentary sequences. | Udita Bansal Santanu Banerjee Dhiren K.Ruidas Kanchan Pande | 2018 | Journal of Palaeogeography2018，7，2： | 3 |
| 5 | Foraminiferal biostratigraphy of lignite mines of Kutch,India:Age of lignite and fossil vertebrates显示文摘The lignite deposits of Kutch, India are stratigraphically referred to the Naredi Formation and considered to be Early Eocene in age. The biostratigraphy of the older mine at Panandhro and a newly opened mine at Matanomadh has constrained the upper age limit of lignite to the early Bartonian. Its lower age may extend to the late Lutetian. Temporally the formation of lignite corresponds to the warming event of the Middle Eocene and suggests a humid climate at the onset of the warming. The previous palynological studies have already suggested dominance of tropical angiospermic pollen. A diverse assemblage of fossil whales and other vertebrates, many of them supposedly the oldest representatives, were reported from Panandhro mine. These were initially assigned to the Early Eocene and later to the Lute? tian age. The present biostratigraphic study revises their age to the Early Bartonian. | Pratul Kumar Saraswati Sonal Khanolkar Dalta Surya Narayana Raju Suryendu Dutta Santanu Banerjee | 2014 | Journal of Palaeogeography2014，3，1： | 2 |
| 6 | Analytical Modeling of Single Electron Transistor for Hybrid CMOS-SET Analog IC Design 显示文摘 | Santanu Mahapatra Vaibhav Vaish Christoph Wasshuber Kaustav Banerjee Adrian Mihai Ionescu | 2004 | 51(11): 1772-17812004，51，11： | 1 |
| 7 | Enzymatically crosslinked carboxymethyl–chitosan/gelatin/nano-hydroxyapatite injectable gels for in situ bone tissue engineering application显示文摘 | Debasish Mishra Bibhas Bhunia Indranil Banerjee Pallab Datta Santanu Dhara Tapas K. Maiti | 2011 | Materials Science & Engineering C2011，，7： | 1 |
| 8 | Integrated borehole and outcrop study for documentation of sea level cycles within the Early Eocene Naredi Formation,western Kutch,India | Urbashi Sarkar Santanu Banerjee P.K.Saraswati | 2012 | Journal of Palaeogeography2012，1，2： | 1 |
| 9 | Substrate control on formation and maturation of glauconites in the Middle Eocene Harudi Formation, western Kutch, India显示文摘 | Santanu Banerjee Shovan Lal Chattoraj P.K. Saraswati Somnath Dasgupta Urbashi Sarkar | 2011 | Marine and Petroleum Geology2011，，1： | 1 |
| 10 | Petrology, palynology and organic geochemistry of Eocene lignite of Matanomadh, Kutch Basin, western India: Implications to depositional environment and hydrocarbon source potential显示文摘 | Suryendu Dutta Runcie P. Mathews Bhagwan D. Singh Suryakant M. Tripathi Alpana Singh Pratul K. Saraswati Santanu Banerjee Ulrich Mann | 2010 | International Journal of Coal Geology2010，，1： | 1 |
| 11 | Tracking sources and paleotectonic settings of Mesozoic sandstones in interlinked rift basins of western India:An integrated approach using petrography and heavy mineral chemistry显示文摘Based on integration of field,petrographic and heavy mineral chemical data,this study highlights the source and tectonic setting of the Mesozoic sandstones of Kutch,Saurashtra,Narmada and Cambay basins at the western margin of India,formed by the progressive splitting of the eastern Gondwanaland.The Kutch Basin is dominated by arkosic sandstone,whereas Saurashtra,Narmada and Cambay basins show the predominance of sub-arkose and sub-litharenite.The modal analyses of framework grains in Kutch sandstones indicate basement uplift and transitional continent settings.In contrast,the sandstones of Saurashtra,Narmada and Cambay basins bear imprints of recycled orogenic and craton interior belts.The presence of abraded and detrital quartz overgrowth and rounded zircons in most sandstones reveal the recycling of sediments in these basins.Tourmaline and rutile mineral compositions constrain the possible lithology of source rocks.The tourmaline mineral chemistry(Ca-Fe_(tot)-Mg plot)suggests the derivation of sediments from various sources,including Li-poor granitoids associated with pegmatites,aplites,Ca-poor metapelites,metapsammites and quartz-tourmaline-rich granitic rocks.The compositions of rutile grains(Cr vs.Nb plot)in sandstones indicate metapelitic sources.The gamut of all mineral chemical data supports the predominance of sediment sources from quartzo-feldspathic rocks with minor inputs from mafic rocks.Based on available paleocurrent data and correlation of source compositions,we infer that the Mesozoic sediments of Kutch,Saurashtra,Narmada and Cambay basins were primarily sourced by various lithologies of the Aravalli Craton.The Narmada Basin possibly received additional sediment input from the Bundelkhand Craton. | Pawan Kumar Rajak Angana Chaudhuri Naraga Prabhakar Santanu Banerjee | 2022 | Journal of Palaeogeography2022，11，2： | 1 |
| 12 | Optimum sizing of photovoltaic battery systems incorporating uncertainty through design space approach显示文摘 | P. Arun Rangan Banerjee Santanu Bandyopadhyay | 2009 | Solar Energy2009，，7： | 1 |
| 13 | Microbial mat-induced sedimentary structures in siliciclastic sediments: Examples from the 1.6 Ga Chorhat Sandstone, Vindhyan Supergroup, M.P., India显示文摘 | Subir Sarkar Santanu Banerjee Pradip Samanta Silambuchelvan Jeevankumar | 2006 | Journal of Earth System Science2006，，1： | 1 |
| 14 | Identification of a sulfonoquinovosyldiacylglyceride from Azadirachta indica and studies on its cytotoxic activity and DNA binding properties显示文摘 | Ratna Chatterjee Omkar Singh Lalawmpuii Pachuau Shiba Prasad Malik Mausumi Paul Kakali Bhadra Santanu Paul Gopinatha Suresh Kumar Nirup Bikash Mondal Sukdeb Banerjee | 2010 | Bioorganic & Medicinal Chemistry Letters2010，，22： | 1 |
| 15 | Circum-Indian Holocene sea-level database:A repository of distinct relative sea-level plots across the Indian Peninsula显示文摘The Indian Peninsula is one of the most well-studied regions for Holocene sea-level fluctuations in the world, however, standardized relative sea-level datasets are missing. This study provides an archive of sealevel indicators(n = 162, 20 locations) along the western and the eastern sides of the peninsula, that have been used to develop Relative Sea Level(RSL) plots. Each dated sea-level indicator is recalibrated for its elevation based on tidal and tectonic correction, as well as age with reservoir correction, and have been separated into six zones based on coastal geomorphology and number of datasets. The database spans throughout the Holocene and covers sea-level depth/elevations from-45 m to +5 m from mean sea-level(MSL). Approximately 90 % of the dataset range from 8 ka to the present day. The first transgression is highly variable and identified between 8.5-8 ka BP in Gujarat(Zone 1), ~ 5.5 ka BP in Maharashtra(Zone 2), between 8 and 7 ka BP in Tamil Nadu(Zone 4) and between 8 and 7.5 ka BP in the Bengal coasts(Zone 6). No transgression above present sea-level is observed along Andhra Pradesh(Zone 5)(no data for Kerala-Zone 3).Further, Zones 1, 2, 4 and 6 show a strong uplift component(tectonic), whereas Zone 5 exhibits subsidence during the Holocene(Zone 3-insufficient data). Based on these findings, and given the region's coastal topography and tidal components, Zones 6 and 1 will likely undergo the largest coastal inundation, followed by Zones 5, 4, 2, and 3. These insights are critical in planning future coastal inundation measures across the Indian Peninsula. | Shradha Menon Pankaj Khanna Santanu Banerjee | 2024 | Journal of Palaeogeography2024，13，1： | 0 |
| 16 | Palaeoenvironmental and biostratigraphic implications of microbial mat-related structures:Examples from the modern Gulf of Cambay and the Precambrian Vindhyan Basin,India显示文摘A stretch of the modern hypersaline coastal plain of the Gulf of Cambay was chosen to examine the distribution of the microbial mat-related structures(MRS) on siliciclastic sediments in the intertidal and supratidal zones.The abundance of MRS increases from the lower intertidal zone to the upper supratidal zone while the type of MRS records a systematic change.While the lower intertidal zone exhibits wrinkle structures,sieve-like surfaces and patchy ripples in places,the upper intertidal zone exhibits diverse MRS related to reduced current activity on the mat layer and intermittent exposure.MRS in the upper intertidal zone include wrinkle structures,sieve-like surfaces,gas domes,reticulated surfaces,multi-directional ripples,patchy ripples,rolled-up mat fragments,setulfs and occasional petee ridges and cracked mat surfaces.The lower supratidal zone is characterized by increased occurrence of petee ridges,gas domes and cracked mat surfaces compared to the upper intertidal zone.The upper supratidal zone is distinguished by the presence of abundant cracked mat surfaces,petee ridges,gas domes and wrinkle structures.The presence of cm-scale,disc-shaped microbial colonies(DMC) with a variety of internal structures is a unique feature of the Gulf of Cambay study area.While wrinkle structures occur in all the coastal zones,setulfs occur close to the boundary between the upper intertidal and lower supratidal zones.An attempt has been made to compare the distribution of MRS in this modern environment with those in the ~1.6 Ga Chorhat Sandstone of the Vindhyan Supergroup for high-resolution palaeoenvironmental interpretation.The upper part of the intertidal segment of the Chorhat Sandstone is distinguished from its lower part by the presence of abundant cracked mat surfaces,petee ridges and gas domes in the former,while wrinkle structures,Kinneyia,rolled-up mat fragments,patchy ripples and multi-directional ripples are equally abundant in both parts.The lower part of the intertidal segment of the Chorhat Sandstone is thus analogous to the upper intertidal zone of the modern Gulf of Cambay environment,while the upper part of the Chorhat intertidal segment reflects prolonged exposure close to the high tide line.The bottom-most part of the intertidal segment of the Chorhat Sandstone with fewer MRS corresponds to the lower intertidal zone at Cambay.Inferred disc-shaped microbial fossils within Vindhyan sandstones are analogous to the DMC found in the modern environment and these features do not have any biostratigraphic implication. | Santanu Banerjee Subir Sarkar Patrick G.Eriksson | 2014 | Journal of Palaeogeography2014，3，2： | 0 |
| 17 | Distinguishing celadonite from glauconite for environmental interpretations:a review显示文摘Celadonite and glauconite are comparable in terms of physical,chemical and mineralogical characteristics.Formation of both these minerals requires slightly oxygen-depleted conditions in a semiconfined micro-environment,facilitating the uptake of Fe into the structure.Although glauconite is ubiquitous in marine deposits,celadonite forms in both marine and non-marine environments,more commonly by altering intermediate to mafic rocks.A review of data across the geological column shows that both these minerals are more common in the Mesozoic and Cenozoic,which may be related to extensive volcanism.The composition of celadonite and glauconite is highly variable and is controlled by the availability of cations within the pore water micro-environment.The major element composition of celadonite overlaps with that of evolved to highly evolved glauconite to a large extent.Existing data and representative samples of celadonite and glauconite reveal subtle differences in X-ray diffraction parameters and Fourier transform infrared(FTIR)spectra.Celadonite shows sharper basal and hkl reflections than glauconite.It characteristically exhibits distinct 111-021,003-022,023 and 130-131,and 060 reflections at less than 1.51A,indicating a betterordered crystallographic structure than glauconite.The FTIR spectra of celadonite and glauconite show similar absorption bands although Si-O bending,Si-O stretching and OH-stretching bands are sharper and well resolved in celadonite than that of glauconite.For palaeoenvironmental interpretations,it is,therefore,necessary to examine the subtle differences in X-ray diffraction parameters and FTIR spectra to confirm the identification of these two minerals.The composition of celadonite relates closely to the host rock and depositional environment.The celadonite associated with mafic rock shows relatively high Fe,Mg and low Al contents.In contrast,those associated with felsic to intermediate composition rocks show slightly higher contents of Al and lower content of Fe,Mg.The mineral chemistry of celadonite varies from marine to continental settings.Marine celadonite contains higher Fe,Mg and lesser Al than their non-marine counterpart.Celadonite with relatively higher Al may show slightly lower interlayer K than Fe and Mg-rich celadonite for charge balancing. | Pragya Singh Santanu Banerjee Tathagata Roy Choudhury Satadru Bhattacharya Kanchan Pande | 2023 | Journal of Palaeogeography2023，12，2： | 0 |
| 18 | A Unit Study of Externality of Shrimp Farming on Provisioning Services (Paddy Farming)显示文摘Externality;the term can define as a positive or negative impact from either production or consumption of goods or services.Services provided by particular location have very specific dependency on spatial characteristics of that region.A region’s distinct characteristics make it ecologically unique from other such regions.Ecosystem services are offered by these regions thus differ according to these unique ecological features.In this particular study,artificially imposed expansion of coastal shrimp farming towards the inland and its impact over paddy cultivation have been addressed.Optimization of the extent of this manipulative coastal expansion has been supported by little modification of a previously described model.Here the investment prediction for both shrimp and paddy farming has been investigated by calculating net present value(NPV).Shrimp farming has very specific externality on local ecosystem services.In this particular case,some contradictory results are presented and with respect to positive or negative externality;but the externalities are strong.NPV results indicate that there is no long-term profitability in case of shrimp farming.Hence,an overall externality of shrimp farming has been described in context of this study. | Suvendu Das Prosenjit Saha Arnab Banerjee Manaswee Maity Santanu Ray | 2019 | NASS Journal of Agricultural Sciences2019，1，2： | 0 |
| 19 | Tribute to Prof.Zeng-Zhao Feng显示文摘We are deeply saddened by the passing away of Prof.Zeng-Zhao Feng.He was a source of inspiration to many sedimentologists and palaeogeographers for his wisdom,energy,hard work and dedication.He nurtured the Journal of Palaeogeography since its birth in 2012 and did everything to see that the journal is published regularly.He was an iconic figure in the sedimentology of China and he was equally important in India and other countries. | Santanu Banerjee | 2023 | Journal of Palaeogeography2023，12，1： | 0 |
| 20 | The formation of authigenic deposits during Paleogene warm climatic intervals:A review显示文摘Although Paleogene warm climatic intervals have received considerable attention for atmospheric and oceanographic changes,the authigenic mineralization associated with these time spans remains overlooked.An extensive review of the literature reveals a close correspondence between the high abundance of glauconite and warm climatic intervals during the Paleogene period.The abundance of phosphorite,ironstone,lignite and black shale deposits reveals similar trends.Although investigated thoroughly,the origin of these authigenic deposits is never understood in the background of Paleogene warming climatic intervals.A combination of factors like warm seawater,hypoxic shelf,low rate of sedimentation,and enhanced rate of continental weathering facilitated the glauconitization.The last factor caused the excess supply of nutrients,including Fe,Si,K,Mg and Al through the rivers,the cations needed for the formation of glauconite.The excessive inflow of nutrient-rich freshwater into the shallow seas further ensured high organic productivity and stratification in shallow shelves,causing hypoxia.The consequent rapid rise in sea-level during the warm periods created extensive low-relief shallow marine shelves starved in sediments.Oxygen-deficiency in the shallow marine environment facilitated the fixation of Fe into the glauconite structure.The inflow of nutrient-rich water during the warm climatic intervals facilitated the formation of phosphorite,ironstone,and organic-matter-rich sedimentary deposits as well.Although global factors primarily controlled the formation of these authigenic deposits,local factors played significant roles in some of the deposits.Therefore,phosphorites formed in marine conditions with open circulation within the tropical zone.While lush growth of rainforest covers in the tropical belt facilitated the formation of coastal lignite. | Santanu Banerjee Tathagata Roy Choudhury Pratul Kumar Saraswati Sonal Khanolkar | 2020 | Journal of Palaeogeography2020，9，4： | 0 |
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