Journal of Palaeosciences最新文献

{"title":"Structural Geology","authors":"B. Ghute","doi":"10.54991/jop.2023.1850","DOIUrl":"https://doi.org/10.54991/jop.2023.1850","url":null,"abstract":"","PeriodicalId":383463,"journal":{"name":"Journal of Palaeosciences","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121182453","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":"Landuse-Landcover Mapping and Modelling in different Ecological regions of the Monsoon International School and Symposium – 2023","authors":"T. Bose, Anjali Trivedi, Akash Srinivas","doi":"10.54991/jop.2023.1857","DOIUrl":"https://doi.org/10.54991/jop.2023.1857","url":null,"abstract":"","PeriodicalId":383463,"journal":{"name":"Journal of Palaeosciences","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115466386","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":"Neoproterozoic Snowball Earth extent inferred from paleosols in California","authors":"G. Retallack","doi":"10.54991/jop.2023.1851","DOIUrl":"https://doi.org/10.54991/jop.2023.1851","url":null,"abstract":"Gelisol paleosols with sand wedges and sorted stone stripes are reported from the early Cryogenian (717–659 Ma), Surprise Diamictite Member and Sourdough Limestone Member of the Kingston Peak Formation in Redlands Canyon, western Panamint Range, California. The Surprise Diamictite was thus not entirely marine, although glaciomarine sediments and tectonically induced, mass wasting deposits, may be present in other parts of the Kingston Peak Formation. Sand wedge and stone stripe paleosols are evidence of local ice–free land with frigid continental climate at paleolatitude as low as 8 ± 4º from paleomagnetic studies of the Surprise Diamictite. The Sturt glaciation was a dramatic global cooling, but not a global snowball. Bare ground of landslides, alluvial fans, till and loess with mineral nutrients, and microtopographic shelter for complex life on land would have been important for survival of life on Earth from glacial destruction.","PeriodicalId":383463,"journal":{"name":"Journal of Palaeosciences","volume":"518 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115633447","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":"Variation in Dynamics, Controls, and Impacts of Agulhas Leakage through Late Pleistocene: A Review","authors":"D. Verma, P. Govil, B. Kumar, Hidayatullah Khan","doi":"10.54991/jop.2023.1852","DOIUrl":"https://doi.org/10.54991/jop.2023.1852","url":null,"abstract":"The Indian–Atlantic water exchange that occurs south of Africa, commonly known as the Agulhas Leakage, is a significant component of global ocean circulation. Apart from supplying warm, saline water to the South Atlantic, the Agulhas Leakage plays an essential role in the global thermohaline circulation. Variations in leakage cause changes in the strength of Atlantic meridional overturning and oscillations in the formation of North Atlantic Deep Water (NADW). This review paper attempts to understand better the dynamics of the Southern Hemisphere’s Agulhas Leakage based on various proxies. The first aspect of this paper concentrates on planktonic foraminifera and other proxies–based reconstruction of the strength of paleo Agulhas Leakage. Secondly, the emphasis would be placed on the controls of the Agulhas Leakage, its impact and its linkage with the Indian Summer Monsoon (ISM). The interactions between the fluctuating westerlies in the Southern Hemisphere, the Subtropical Front (STF) and the Indian Summer Monsoon may affect the variability of Agulhas Leakage. During glacial terminations and following interglacial periods, there is a notable intensification of leakage, which subsequently enhances the Atlantic Meridional Overturning Circulation (AMOC) and assumes a pivotal function in the global transportation of heat. By synthesizing current knowledge, this review highlights the need for further research to better understand and predict the ramifications of Agulhas Leakage in the face of a changing climate.","PeriodicalId":383463,"journal":{"name":"Journal of Palaeosciences","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127071561","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":"Evidence of an early Permian palynomorphs in Ophiolitic Mélange of the Shyok Suture Zone, Eastern Karakoram, Ladakh, India","authors":"Saurabh Gautam, Ram Awatar, Anupam Sharma","doi":"10.54991/jop.2023.1856","DOIUrl":"https://doi.org/10.54991/jop.2023.1856","url":null,"abstract":"An Early Permian palynomorphs have been recorded for the first time from Ophiolitic Mélange of the Shyok Suture Zone, Eastern Karakoram, Ladakh, India. The characteristic taxa recorded in the assemblage are–Caheniasaccites diffusus, Crescentipollenites korbaensis, Distriatites bilateris, Faunipollenites varius, Ibisporites diplosaccus, Lacinitriletes badamensis, Lahirites parvus, Lunatisporites sp., Parasaccites korbaensis, Platysaccus brevizonatus, Plicatipollenites trigonalis, Potonieisporites mutabilis, Primuspollenites levis, Rhizomaspora indica, Scheuringipollenites tentulus, Striatites subtilis, Striasulcites ovatus, Striatopodocarpites gondwanensis and Verticipollenites secretus. The palynoflora recorded here reveals a typical early Permian age (Asselian–Sakmarian; 299.0–284.0 Ma) and affiliated to those described from the peninsular and extra–peninsular region of Lower Gondwana sediments of India as well as other core Gondwana continents. The study suggests that these palynomorphs were trapped remnants of the active continental margin of the Peri–Gondwanic Microcontinent/Kshiroda Plate that was cut off during subduction/integration processes between the Shyok–Suture–Zone of Ladakh and Karakoram Qiangtang Lhasa terrane and preserved in the Ophiolitic Mélange.","PeriodicalId":383463,"journal":{"name":"Journal of Palaeosciences","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126248573","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":"International Conference on Reconstructing the Human Population Histories of South Asia Using Archaeology and Genetics","authors":"A. Dwivedi, Bhavna Ahlawat, N. Rai","doi":"10.54991/jop.2023.1861","DOIUrl":"https://doi.org/10.54991/jop.2023.1861","url":null,"abstract":"T International Conference on ‘Reconstructing the human population histories of South Asia using Archaeology and Genetics,’ was held during 7-9 June 2023 at CCAS, University of Kashmir, Srinagar. The conference was held under the umbrella of Emerging Insights on Human Histories and Past Environments in South Asia and was funded by the Ministry of Culture, Government of India under Azaadi ka Amrit Mahotsav. It was jointly organized by Birbal Sahni Institute of Palaeosciences, Lucknow, India and University of Kashmir, Srinagar, India. The conference aimed at exchanging research works and ideas from different fields of archaeology, genetics, anthropology, computational biology, geosciences, archaeobotany and zooarchaeology, encouraging a multidisciplinary approach towards investigations in palaeosciences. This meeting was an opportunity to discuss modern scientific research as well as analysis tools. The conference was attended by ~60 experts in different associated fields of palaeosciences from all over the world, including UK, Chicago, Texas, and South Korea and several participants from India. The Inaugural Session began with the National Anthem and Kashmir University Taraana, followed by lighting the lamp by the Chief Guest, Minister of State for Culture and External Affairs, Government of India, Smt Meenakshi Lekhi. The Honorable Minister was accompanied by Shri Sanjeev Sanyal, Member, Economic Advisory Council to the Prime Minister (EAC-PM), Government of India, Prof. Partha Partim Majumder, Founder Director, National Institute of Biomedical Genomics, Kalyani, India, Prof. Nilofer Khan, Vice Chancellor, University of Kashmir, and Prof Kumarswamy Thangaraj, Director and Chief Scientist, Center for DNA Fingerprinting & Diagnostics, CSIR-CCMB, Journal of Palaeosciences 72(2023): 63–65 2583-4266/2023 https://doi.org/10.54991/jop.2023.1861","PeriodicalId":383463,"journal":{"name":"Journal of Palaeosciences","volume":"117 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121787137","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":"Diet of Indus Civilization: Reinterpretations from Multi–Site Stable Isotopic Mortuary Analysis","authors":"P. K","doi":"10.54991/jop.2023.1855","DOIUrl":"https://doi.org/10.54991/jop.2023.1855","url":null,"abstract":"Several insights on the identification and mobility of the Indus Civilization were provided by previous researchers based on the results limited towards archaeological context. In this study, several such published data of Mortuary samples from the major urban centre of Harappa, the eastern frontier town of Farmana, and the post–urban necropolis at Sanauli are re–evaluated in context with the modern dental samples. The results are compared to the compositional signatures found within teeth from modern humans from the USA, East Asia, Mexico and Bulgaria, which is expected to show variance in their isotopic signature depending upon regional level precipitation and diet. The results from δ18O signatures from the Indus Valley point towards dependence on riverine water for drinking.","PeriodicalId":383463,"journal":{"name":"Journal of Palaeosciences","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124760029","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":"Early Ediacaran lichen from Death Valley, California, USA","authors":"G. Retallack","doi":"10.54991/jop.2022.1841","DOIUrl":"https://doi.org/10.54991/jop.2022.1841","url":null,"abstract":"Enigmatic tubestones from the basal Ediacaran Noonday Formation of southern California have been interpreted as fluid escape structures or as stromatolites in a “cap carbonate”, created by marine precipitation at the termination of Snowball Earth glaciation. However, doubts about this interpretation stem from permineralized organic structures within the tubes with hyphae and attached spheroidal cells, and thallus organization comparable with lichens. These “tubestones” are here named Ganarake scalaris gen. et sp. nov. The fungus was aseptate as in Mucoromycota and Glomeromycota, and the spheroidal photobiont has the size and isotopic composition of a chlorophyte alga. The tubes are most like modern window lichens (shallow subterranean lichens) and formed nabkhas (vegetation–stabilized dunes) of a loess plateau comparable in thickness and extent with the Chinese Loess Plateau of Gansu. Loess paleosols of three different kinds are recognized in the Noonday Formation from geochemical, petrographic, and granulometric data. The Noonday Formation was not a uniquely Neoproterozoic marine whiting event, but calcareous loess like the Peoria Loess of Illinois and the Chinese Loess Plateau of Gansu.\u0000सारांश \u0000दक्षिणी कैलिफोर्निया के निचले एडियाकरन नूनडे शैलसमूह से अज्ञात ट्यूबस्टोन की एक \"कैप कार्बोनेट\" में द्रव पलायन संरचनाओं या स्ट्रोमेटोलाइट्स के रूप में व्याख्या की गई है जो कि स्नोबॉल अर्थ हिमाच्छादन की समाप्ति पर समुद्री वर्षा द्वारा निर्मित हुए। हालांकि,  इस व्याख्या के बारे में संदेह, हायफी और संलग्न गोलाकार कोशिकाओं के साथ ट्यूबों के भीतर अश्मीकृत कार्बनिक संरचनाओं से उपजा है और थैलस संगठन लाइकेन के साथ तुलनीय है। इन \"ट्यूबस्टोन\" को यहाँ गनारके स्केलेरिस नव कुल नव प्रजाति नाम दिया गया है। कवक म्योकोरोमाइकोटा और ग्लोमेरोमाइकोटा  के समान अकोष्ठीय और गोलाकार फोटोबियोन्ट की माप और समस्थानिक संरचना क्लोरोफाइट शैवाल जैसी है। ट्यूब अधिकांशतः आधुनिक विंडो लाइकेन (उथले भूमिगत लाइकेन) की तरह हैं और लोएस पठार के नबखास (वनस्पति-स्थिर टीले) बनाते हैं जो कि मोटाई और विस्तार  में गांसु के चीनी लोएस पठार के तुल्य हैं । भू-रासायनिक, पेट्रोग्राफिक और ग्रैनुलोमेट्रिक आलेखों से नूनडे शैलसमूह में तीन अलग-अलग प्रकार के लोएस पेलिओसॉल की पहचान की गई है।  नूनडे शैलसमूह एक विशिष्ट नियोप्रोटीरोज़ोइक समुद्री श्वेत घटना नहीं था, लेकिन इलिनॉयस के पियोरिया लोएस और गांसु के चीनी लोएस पठार की तरह चूनामय लोएस था।","PeriodicalId":383463,"journal":{"name":"Journal of Palaeosciences","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131334118","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 first discovery of mosses (Bryopsida) in the Lower Jurassic of Eastern Siberia","authors":"A. Frolov, Sergei G. Kazanovsky, I. Enushchenko","doi":"10.54991/jop.2022.1842","DOIUrl":"https://doi.org/10.54991/jop.2022.1842","url":null,"abstract":"Most of the known diversity of Jurassic mosses comes from the Upper Jurassic of China, Mongolia, and Asiatic Russia. The Early Jurassic mosses are not known in Siberia. According to the study of shoots of bryophytes from the Prisayan Formation (Early–Middle Jurassic) of the Irkutsk Coal Basin (Eastern Siberia), two new species of mosses are established: Bryokhutuliinia ignatovii sp. nov. and Palaeodichelyma kiritchkovae sp. nov. The stem microstructures of B. ignatovii distinguish it clearly from other representatives of Bryokhutuliinia Ignatov from the Jurassic and Cretaceous of Mongolia and Transbaikalia. P. kiritchkovae is the only known representative preserved with sporophytes of Palaeodichelyma Ignatov & Shcherbakov.\u0000सारांश\u0000जुरासिक मोसस की अधिकांश ज्ञात विविध प्रजातियाँ चीन, मंगोलिया और एशियाटिक रूस के ऊपरी जुरासिक में पाई जाती है। प्रारंभिक जुरासिक मॉस की खोज साइबेरिया में ज्ञात नहीं है। इरकुत्स्क कोयला द्रोणी (पूर्वी साइबेरिया) के प्रिसायन शैलसमूह  (प्रारंभिक-मध्य जुरासिक) से ब्रायोफाइट्स के तने के अध्ययन के परिणामस्वरूप, मोसस की दो नई प्रजातियां स्थापित की गई हैं: ब्रायोखुटुलिनिया इग्नाटोवी (नवप्रजाति) और पेलियोडिचेलेमा किरीचकोवे (नवप्रजाति)। बी. इग्नाटोवी के तने की सूक्ष्म संरचना इसे मंगोलिया और ट्रांसबाइकलिया के जुरासिक और क्रिटेशियस से प्राप्त ब्रायोखुटुलिनिया इग्नाटोव के अन्य प्रतिनिधियों से स्पष्ट रूप से अलग करती है। पी. किरीचकोवे एकमात्र ज्ञात प्रजाति है जो पेलियोडिचेलेमा इग्नाटोव एवं शेर्बाकोव के स्पोरोफाइट्स के साथ संरक्षित है।\u0000 ","PeriodicalId":383463,"journal":{"name":"Journal of Palaeosciences","volume":"56 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120919724","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":"Pollen morphological study in subfamily Papilionoideae using Confocal Laser Scanning Microscopy","authors":"Anjali Trivedi, A. Srivastava, A. Farooqui, Salman Khan, A. K. Pokharia, D. Ferguson, V. Singh","doi":"10.54991/jop.2022.538","DOIUrl":"https://doi.org/10.54991/jop.2022.538","url":null,"abstract":"The pollen morphological study was carried out in the subfamily Papilionoideae using Confocal Laser Scanning Microscopy (CLSM) to facilitate the identification of pollen in sedimentary archives. Pollen has long been used as an excellent proxy for understanding past vegetation, ecology, climate and agricultural strategies of ancient settlements and therefore, its identification at a specific level is of utmost importance. The modern pollen samples were retrieved from plants growing in urban and rural areas of Kanpur city, Uttar Pradesh, India. The cluster analysis and PCA of pollen morphological characters in the subfamily determine the generic and species relationships outlining the affinity of taxa in the subfamily Papilionoideae.\u0000सारांश\u0000तलछटी अभिलेखागार में पराग की पहचान के लिए कन्फोकल लेजर स्कैनिंग माइक्रोस्कोपी (सीएलएसएम) का उपयोग करते हुए उपपरिवार पैपिलिओनोइडी में पराग रूपात्मक अध्ययन किया गया। प्राचीन बस्तियों की पुरावनस्पति, पारिस्थितिकी, जलवायु और कृषि रणनीतियों को समझने के लिए पराग का लंबे समय से एक उत्कृष्ट प्रतिनिधि के रूप में उपयोग किया जा रहा है और इसलिए, एक विशिष्ट स्तर पर इसकी पहचान अत्यंत महत्वपूर्ण है। आधुनिक पराग के नमूने कानपुर, उत्तर प्रदेश के शहरी और ग्रामीण क्षेत्रों में उगने वाले पौधों से प्राप्त किए गए थे। क्लस्टर विश्लेषण और पराग रूपात्मक वर्णों का पीसीए उपपरिवार पैपिलिओनोइडी के टैक्सा की आत्मीयता को रेखांकित करते हुए जेनेरिक और प्रजाति संबंधों को निर्धारित करता है।  \u0000 ","PeriodicalId":383463,"journal":{"name":"Journal of Palaeosciences","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129998489","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}