Marine Micropaleontology最新文献

{"title":"Upper Ocean variations at IODP Hole U1505C in the northern South China Sea and their response to the East Asian Monsoon during the middle Miocene","authors":"Yamin Lu,&nbsp;Baoqi Huang","doi":"10.1016/j.marmicro.2024.102365","DOIUrl":"https://doi.org/10.1016/j.marmicro.2024.102365","url":null,"abstract":"<div><p>We used the samples from International Ocean Discovery Program (IODP) Hole U1505C in the northern South China Sea (SCS) to reconstruct the upper ocean profiles and discussed the East Asian Monsoon (EAM) variations during 15.0–12.5 Ma. 15 genera and 41 species were identified, and 7 planktonic foraminifer datums were recognized, then a reliable chronostratigraphic framework was updated. A principal component analysis (PCA) was used to identify the suitable assemblages for reconstructing upper water profiles, based on planktonic foraminifera relative abundance and isotope records. The sea surface temperature (SST), paleo-productivity, and the depth of thermocline (DOT) were reconstructed by the content of warm water species, high productivity species, and the ratio of mixed layer to thermocline species, respectively. Three main phases were identified: (1) during 15.0–14.7 Ma, the SST and paleo-productivity were high, while the thermocline was shallow, indicating a warm and rainy climate influenced by East Asian Summer Monsoon (EASM); (2) during 14.7–13.8 Ma, the SST was lower, the paleo-productivity increased significantly, and the thermocline deepened, indicating an enhanced East Asian Winter Monsoon (EAWM); (3) during 13.8–12.5 Ma, the SST increased slightly, the paleo-productivity deceased, while the DOT showed neglectable change, indicating a stable EAWM and a waning EASM. The results of the Morlet wavelet spectrum revealed that EAM and the upper ocean profiles in the northern SCS were predominantly regulated by the eccentricity cycles, emphasizing the significant impact of low-latitude processes on climate variations.</p></div>","PeriodicalId":49881,"journal":{"name":"Marine Micropaleontology","volume":"189 ","pages":"Article 102365"},"PeriodicalIF":1.9,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140638729","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":"Microbial-dominated dendrolites in the Zhangxia Formation of the Cambrian Miaolingian: A case study of the Dongping section, Shandong Province, eastern China","authors":"Yidan Zhu ,&nbsp;Chaojia Mei ,&nbsp;Chung-Il Ri ,&nbsp;Xiaoqing Meng","doi":"10.1016/j.marmicro.2024.102363","DOIUrl":"https://doi.org/10.1016/j.marmicro.2024.102363","url":null,"abstract":"<div><p>Nonlamellar dendrolites, a type of microbial carbonate, exhibit dendritic fabric on the macroscale, which is different from stromatolites, thrombolites, and leiolites. This work reports the sedimentary environment and sedimentary characteristics of dendrolites dominated by calcified microbes in the Zhangxia Formation in the Dongping section of Shandong Province, China. Thick oolitic limestone affected by the rise in sea level is developed in the middle section of the Zhangxia Formation in the Dongping section, and a set of thick massive dendrolites are developed above the oolitic limestone. It exhibits the special sedimentary phenomenon of microbes seeking stability in a high-energy environment. Microscopically, the dendrolites are characterized by the rich development of calcified cyanobacteria fossils, such as the epiphyton group and <em>Girvanella</em>, demonstrating the diversity and complexity of the microbes that dominate the dendrolite formation in the Dongping section. The epiphyton group can be classified by morphological characteristics, namely, <em>Epiphyton</em>, <em>Korilophyton</em>, and <em>Hedstroemia</em>. The latter can be further categorized into typical <em>Hedstroemia</em> and <em>Cayeuxia</em>. Therefore, this study enhances our understanding of dendrolite sedimentary environments and provides a reference example for exploring diverse fossil records in ancient strata.</p></div>","PeriodicalId":49881,"journal":{"name":"Marine Micropaleontology","volume":"189 ","pages":"Article 102363"},"PeriodicalIF":1.9,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140540488","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":"Beyond biostratigraphy: Conodont matters in evolving planetary scenarios","authors":"Annalisa Ferretti ,&nbsp;Guillermo L. Albanesi ,&nbsp;Xavier Crosta ,&nbsp;Ric W. Jordan","doi":"10.1016/j.marmicro.2024.102364","DOIUrl":"https://doi.org/10.1016/j.marmicro.2024.102364","url":null,"abstract":"","PeriodicalId":49881,"journal":{"name":"Marine Micropaleontology","volume":"189 ","pages":"Article 102364"},"PeriodicalIF":1.9,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140543454","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":"Sea-level fluctuations during the Danian-Selandian interval in Sinai, Egypt: Insights from benthic foraminiferal biofacies analysis","authors":"Youssef S. Bazeen ,&nbsp;Sherif Farouk ,&nbsp;Khaled Al-Kahtany ,&nbsp;Fayez Ahmad ,&nbsp;Amr S. Zaky","doi":"10.1016/j.marmicro.2024.102362","DOIUrl":"10.1016/j.marmicro.2024.102362","url":null,"abstract":"<div><p>The Paleocene hemipelagic deposits of the Dakhla Formation in Sinai offer an ideal setting to investigate paleoenvironmental fluctuations using benthic foraminifera. This study examined a Danian-Selandian sedimentary succession at Themed, Sinai using quantitative foraminiferal analysis within a sequence stratigraphic framework. Quantitative multivariate analyses, including R-mode clustering and non-metric multidimensional scaling (NMDS) ordination of biofacies trends and diversity parameters, indicate considerable paleoenvironmental and paleobathymetric changes throughout the studied succession. Five transgressive-regressive (T-R) sequences were identified based primarily on benthic foraminiferal biofacies trends. The sequence boundaries correlated well with major global sea-level lowstands. Benthic foraminiferal assemblages elucidated paleobathymetry fluctuations between upper bathyal and middle-outer neritic settings across the sequences. The identified sequences strongly correlate to global eustatic cycles, with subtle disparities suggesting a subordinate role for regional tectonics overprinting the dominant sea level control. The Latest Danian Event (LDE) interval coincides with the regressive phase of the fourth T-R sequence, as revealed from the biostratigraphic-constrained isotopic signature. It showed pronounced peaks in the relative abundance of the eutrophic buliminids, likely reflecting enhanced export productivity. Overall, benthic foraminifera provided vital paleoenvironmental insights, enabling sequence stratigraphic interpretation in the monotonous hemipelagites and highlighting possible coupled dynamics of both the carbon cycle and sea level.</p></div>","PeriodicalId":49881,"journal":{"name":"Marine Micropaleontology","volume":"189 ","pages":"Article 102362"},"PeriodicalIF":1.9,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140399799","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 record of marine ingression in western Gondwana from Devonian conodonts in the Amazonas and Solimões basins, Brazil","authors":"Jordana Maria Viccari,&nbsp;Sara Nascimento,&nbsp;Ana Karina Scomazzon,&nbsp;Amanda Pericolo da Rosa,&nbsp;Andrés Felipe Rojas Mantilla,&nbsp;Sanmya Karolyne Rodrigues Dias,&nbsp;Paulo A. Souza,&nbsp;Valesca Brasil Lemos,&nbsp;Danielle Dall Amaria Soffiatti,&nbsp;Martín Andrés León Caffroni","doi":"10.1016/j.marmicro.2024.102352","DOIUrl":"10.1016/j.marmicro.2024.102352","url":null,"abstract":"<div><p>During the Devonian, the Gondwana supercontinent was in a paleogeographic position in high-latitudes, close to the South Pole. The arrangement of continents, tectonic activity, climate fluctuations, and the evolution of marine life played an important role in the marine ecosystems during this period. Conodont occurrences in high-latitudes are scarce. In the Upper Devonian (Frasnian/Famenian) of western Gondwana, conodonts have been found in anoxic black-shale deposits associated with maximum flooding surface (MFS) of a distal platform, in the Barreirinha Formation of the Amazonas Basin and Jandiatuba Formation of the Solimões Basin, in northern Brazil. The fauna is characterized by low diversity and well-preserved platform and ramiform elements of <em>Mehlina gradata</em>, <em>Ozarkodina</em> sp. aff. <em>O. sannemanni</em>, <em>Cryptotaxis</em> sp. and <em>Polygnathus</em> sp. in the Amazonas Basin and <em>Cryptotaxis</em> sp., <em>Parapolygnathus</em> sp., <em>Pandorinellina</em> sp.<em>,</em> and <em>Hibbardella</em> sp. in the Solimões Basin. The conodont faunal association and sedimentary succession suggest a marine ingression in cool water conditions to the Devonian sea of the Amazonian region.</p></div>","PeriodicalId":49881,"journal":{"name":"Marine Micropaleontology","volume":"188 ","pages":"Article 102352"},"PeriodicalIF":1.9,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139949719","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":"Unravelling the distribution of three Ammonia species (Foraminifera, Rhizaria) in French Atlantic Coast estuaries using morphological and metabarcoding approaches","authors":"Marie P.A. Fouet ,&nbsp;Magali Schweizer ,&nbsp;David Singer ,&nbsp;Julien Richirt ,&nbsp;Sophie Quinchard ,&nbsp;Frans J. Jorissen","doi":"10.1016/j.marmicro.2024.102353","DOIUrl":"10.1016/j.marmicro.2024.102353","url":null,"abstract":"<div><p>Assessing the distribution of species in natural environments is essential for their use in environmental surveys. Here, we investigate the distribution of three pseudo-cryptic species formerly lumped in the morphospecies <em>Ammonia tepida</em> (Cushman, 1926)<em>,</em> commonly found on estuarine mudflats along the European coasts: <em>Ammonia veneta</em> Schultze, 1854 (T1), <em>Ammonia aberdoveyensis</em> Haynes, 1973 (T2) and <em>Ammonia confertitesta</em> Zheng, 1978 (T6). We studied their distribution at 51 sites located in seven estuaries of the French North Atlantic coast (Elorn, Aulne, Odet, Crac'h, Auray, Vilaine, Vie), using both morphological and molecular identification methods. <em>Ammonia veneta</em> was detected by both approaches at most of the stations. While <em>A. aberdoveyensis</em> was frequently identified by the morphological method but not detected with metabarcoding, the presence of <em>A. confertitesta</em> in the eDNA data often contrasted with its absence in the morphological analysis. The absence of <em>A. aberdoveyensis</em> in eDNA of sites where it was identified morphologically could be the consequence of its relative scarcity, and eventually a patchy distribution. Concerning <em>A. confertitesta,</em> we hypothesise that these contradictory results can be explained by the supposedly invasive character of this species. Despite the widespread presence of <em>A. confertitesta</em> genetic material (including adults, juveniles and propagules), a mature population has not yet fully developed everywhere. The seven investigated estuaries seem to represent different stages of replacement of the autochthonous species <em>A. veneta</em> and <em>A. aberdoveyensis</em> by <em>A. confertitesta</em>. Our study demonstrates that the combination of visual observations and molecular approaches is ideal for monitoring the progressive spreading of exotic species.</p></div>","PeriodicalId":49881,"journal":{"name":"Marine Micropaleontology","volume":"188 ","pages":"Article 102353"},"PeriodicalIF":1.9,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139949697","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":"Relative abundance and biometry of Bolivina ordinaria on the northern continental slope of the Pelotas basin during the late Quaternary","authors":"Patrícia Tortora Kother ,&nbsp;Maria Alejandra Gomez Pivel ,&nbsp;Kalina Manabe Brauko ,&nbsp;Carla Bonetti","doi":"10.1016/j.marmicro.2024.102345","DOIUrl":"10.1016/j.marmicro.2024.102345","url":null,"abstract":"<div><p>This study examines the variations in relative abundance, test size, and biomass of the species <em>Bolivina ordinaria</em> (Foraminifera) over the last 112 ka BP on the northern slope of the Pelotas Basin, Southern Brazil. The analyses were based on 651 individuals from 42 samples distributed along the cores SIS-249 (Marine Isotope Stage 5 to 3) and SIS-188 (Marine Isotope Stage 3 to 1). <em>Bolivina ordinaria</em> was the most abundant species of the Bolivinitidae family in these cores, particularly during warmer periods (MIS 1 and 5). Nine other species of this family were identified: <em>B. compacta, B. doniezi, B. lowmani, Bolivina</em> sp., <em>B.striatula, Brizalina</em> sp., <em>Brizalina spinescens, Brizalina subaenariensis,</em> and <em>Brizalina subspinescens.</em> Larger test lengths were observed during MIS 3 in the both cores. The summed biomass was higher during MIS 5 in the SIS-249 core and lower during MIS 3 in the SIS-188 core. The fluctuations observed in the relative abundance and summed biomass of <em>B. ordinaria</em> are consistent with the oscillations in total organic carbon flow, and the variations in primary productivity between the interglacial and glacial periods. The results suggest that this infaunal species is favored by the regular supply of refractory organic matter during warmer periods but faces increased competition from shallow infaunal and epifaunal species during glacial periods, when the flow of labile organic matter increases.</p></div>","PeriodicalId":49881,"journal":{"name":"Marine Micropaleontology","volume":"188 ","pages":"Article 102345"},"PeriodicalIF":1.9,"publicationDate":"2024-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139949631","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":"Spatial and vertical distribution of the genus Amphistegina and its relationship with the indigenous benthic foraminiferal assemblages in the Pelagian Archipelago (Central Mediterranean Sea)","authors":"Claudia Cosentino ,&nbsp;Roberta Guastella ,&nbsp;Nicoletta Mancin ,&nbsp;Antonio Caruso","doi":"10.1016/j.marmicro.2024.102344","DOIUrl":"10.1016/j.marmicro.2024.102344","url":null,"abstract":"<div><p>A serious threat affecting the Mediterranean Sea is the migration of Indo-Pacific marine species through the Suez Canal following its opening in 1869. This phenomenon gives extreme causes for concern as many non-indigenous species are highly invasive and seriously threaten native biodiversity. Particularly insidious are small-size taxa such as benthic foraminifera, which are able to invade wide areas un-noticed.</p><p>The objective of this study is to evaluate the stage of invasion of non-indigenous foraminifer <em>Amphistegina lobifera</em> and the re-colonization of <em>Amphistegina lessonii</em> in two islands of the Pelagian Archipelago (Central Mediterranean) where both species were first recorded in 2005.</p><p>Absolute abundances quantified in seabed and algal samples collected in 2014 were compared with those detected in 2005 and 2009. Results show that, in the innermost part of the neritic environment, amphisteginids were so abundant and widespread as to have replaced native benthic foraminifera just a few years after earlier reports.</p><p>On Lampedusa Island, Amphisteginids seem to compete mainly with other symbiont-bearing foraminifera, such as the milioliid <em>Peneroplis pertusus</em> and <em>Peneroplis planatus</em>; we hypothesize that the different algal symbionts housed by the invasive species could play an important role in the invasion success in the Mediterranean Sea. In the most severe case of amphisteginid invasion, as seen around the volcanic island of Linosa, the accumulation of their carbonatic remains is causing a sedimentation switch: increasing the content of white carbonatic sands and replacing the black volcanic substrates, as already observed in Indian Ocean atolls.</p></div>","PeriodicalId":49881,"journal":{"name":"Marine Micropaleontology","volume":"188 ","pages":"Article 102344"},"PeriodicalIF":1.9,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0377839824000148/pdfft?md5=c8fb133aa751b6827f2e6d983d2aa18f&pid=1-s2.0-S0377839824000148-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139890530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Morphometric changes in Watznaueria barnesiae across the mid Cretaceous: Paleoecological implications","authors":"Chiara Bettoni ,&nbsp;Elisabetta Erba ,&nbsp;Silvia Castiglione ,&nbsp;Pasquale Raia ,&nbsp;Cinzia Bottini","doi":"10.1016/j.marmicro.2024.102343","DOIUrl":"https://doi.org/10.1016/j.marmicro.2024.102343","url":null,"abstract":"<div><p>This study reveals moderate yet important variations in <em>Watznaueria barnesiae</em> coccolith and central unit size throughout the Aptian–late Cenomanian (27 my) time interval in western Tethys. A new statistical approach was applied to determine whether non-random size trends apply to these metrics and to identify possible links between their variation and fertility or temperature. During OAE 1a, <em>W. barnesiae</em> coccoliths were the smallest and the most elliptical, with reduced central unit size. A further minor size decrease occurs during OAE 1b but not during OAE 1d. From the middle Albian to the middle Cenomanian, larger and less elliptical coccoliths are observed, with unchanged central unit dimensions. These results, together with concomitantly larger size changes in <em>Biscutum constans</em> confirm that <em>W. barnesiae</em> is a tolerant taxon. High-frequency, high-amplitude paleoenvironmental changes during the Aptian–early Albian indicate that temperature and fertility – either individually or in combination – had no direct impact on the mean coccolith size and potentially other factors affected coccolith size. Instead, lower nutrients with lower temperatures probably played a role in promoting larger <em>W. barnesiae</em> but smaller <em>B. constans</em> coccoliths during the middle Albian–Cenomanian. The size and ellipticity changes during OAE 1a and 1b were the strongest, likely resulting from ocean acidification and trace metal inputs, in addition to (or independently of) fertility and temperature variations.</p></div>","PeriodicalId":49881,"journal":{"name":"Marine Micropaleontology","volume":"188 ","pages":"Article 102343"},"PeriodicalIF":1.9,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0377839824000136/pdfft?md5=4f111a88b163a05adda2be7a27cb4dc7&pid=1-s2.0-S0377839824000136-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139699971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Paleoecology of selected Danian marine ostracods, geochemically pre-characterized by analysis of stable carbon (δ13C) and oxygen (δ18O) isotopes","authors":"Marlone H.H. Bom ,&nbsp;Daiane Ceolin ,&nbsp;Karlos G.D. Kochhann ,&nbsp;Rodrigo Do Monte Guerra ,&nbsp;Guilherme Krahl ,&nbsp;German Patarroyo ,&nbsp;Mírian L.F.A. Pacheco ,&nbsp;Lucas V. Oliveira ,&nbsp;Telma Musso ,&nbsp;Andrea Concheyro ,&nbsp;Gerson Fauth","doi":"10.1016/j.marmicro.2024.102342","DOIUrl":"10.1016/j.marmicro.2024.102342","url":null,"abstract":"<div><p>The Cerro Azul Section provides a continuous record of the Cretaceous-Paleogene (K-Pg) transition in a shallow marine context of the South Atlantic Ocean in the Neuquén Basin. Ostracod assemblages were severely affected by environmental changes across the event. Excellent ostracod preservation at the Cerro Azul Section allows to infer paleoecological preferences of four Danian species based on carbon and oxygen stable isotopes. The studied species were <em>Paracypris bertelsae</em> Ceolin and Whatley, 2015, <em>Cytherella</em> spp., <em>Togoina argentinensis</em> and <em>Henryhowella</em> (<em>Wichmannella) meridionalis</em> (Bertels, 1974). To assess the reliability of ostracod δ¹³C and δ¹⁸O values as paleoenvironmental proxies, we pre-characterized valves with micro x-ray microdiffraction (μXRD) and microRaman (μRaman spectroscopy). <em>Togoina argentinensis</em> and <em>Henryhowella</em> (<em>Wichmannella) meridionalis</em> present in their major calcitic compositions, with small differences of crystallinity within intervals of environmental stress, but no authigenic phases formed during diagenesis. δ¹³C and δ¹⁸O values depict clear interspecific differences between smooth specimens and ornamented specimens. These differences in stable isotope values were likely controlled by microhabitat preferences, which would be comparable with patterns described for benthic foraminifera as well as paleonutrients variations, suing Ba/Ti and P/Ti ratios.</p></div>","PeriodicalId":49881,"journal":{"name":"Marine Micropaleontology","volume":"188 ","pages":"Article 102342"},"PeriodicalIF":1.9,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139662258","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}