Quaternary International最新文献

{"title":"Geochemical evidence for increased sediment supply from the Deccan basalts during the Late Holocene aridity","authors":"","doi":"10.1016/j.quaint.2024.07.016","DOIUrl":"10.1016/j.quaint.2024.07.016","url":null,"abstract":"<div><p>The drainage basins of Peninsular India are characterized by silicate-dominated lithologies, and influenced by Indian Summer Monsoon (ISM) precipitation. The Godavari River Basin (GRB), the largest river basin in Peninsular India situated within the ISM region, represents an ideal case for assessing weathering and climate interaction at different timescales. In this contribution, major and trace elemental geochemistry of a radiocarbon-dated sediment core (CY; 54.2 m long) from the Godavari delta region was investigated to reconstruct erosional changes in the Godavari basin in response to ISM variations during the Late Holocene. Comparison of geochemical data for the CY sediments and their possible sources confirm dominant sediment supply from the Deccan basalts and Archean Gneisses to the site. A distinct increase in Ti/Al, Ca/Al, and Cr/Al, along with a decrease in CIA* and LREE/HREE at 3.2 ka BP, point to relative increase in sediment supply from the Deccan Traps. Inverse model calculations of Al-normalized ratios of selected elements (Ti, Fe, V, Cr, Cu, Co) estimate that the core site on average receives ∼41 % sediments from the Deccan regions, which increased by ∼20% since last 3.2 ka BP. This accelerated erosion is attributed to the coupled effect of aridity-induced Deccan upland erosion with a relative decrease from the Archean rock source. This period of accelerated erosion coincides with the abandonment of Chalcolithic settlements.</p></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142230679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Increasing frequency of extreme climatic events in southern India during the Late Holocene: Evidence from lake sediments","authors":"","doi":"10.1016/j.quaint.2024.07.015","DOIUrl":"10.1016/j.quaint.2024.07.015","url":null,"abstract":"<div><p>In this study, we aim to reconstruct southern India's intrinsic environmental changes over the past 1500 years from 3330 to 1830 cal BP by investigating the sedimentation and weathering dynamics in Lake Shantisagara, one of Karnataka's largest lakes. Four distinct climatic phases were delineated based on sedimentological, geochemical, and End Member Modelling Analysis (EMMA) results. Phase 1 (3330-3100 cal BP) is a short-term low rainfall zone characterized by a calm hydrodynamic environment and weak chemical weathering. Phase 2 (3100-2800 cal BP) is a climatically unstable phase, fluctuating between low and high rainfall conditions. Phase 3 (2800-2200 cal BP) is characterized by a stable, low rainfall climate with weak fluvial activity and chemical weathering. It is followed by a highly unstable phase marked by frequent extreme climatic events (Phase 4; 2200-1830 cal BP). Our study reveals a highly unstable hydrodynamic condition that culminated in potentially catastrophic high rainfall events that triggered intense and frequent floods in southern India around ∼2208, 2054, 1958, and 1891 cal BP. Comparative studies of regional records show that the regional climate pattern is similar. There is a strong effect of Total Solar Irradiance (TSI), Sea Surface Temperature (SST) off the Malabar coast, location of the Intertropical Convergence Zone (ITCZ), and the El Niño Southern Oscillation (ENSO) on the monsoon system in southern India. This suggests that there is a global teleconnection.</p></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142230678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stable hydrogen isotope evidence of late-Holocene precipitation variability on the Caribbean slope of the Cordillera Central, Costa Rica","authors":"","doi":"10.1016/j.quaint.2024.07.017","DOIUrl":"10.1016/j.quaint.2024.07.017","url":null,"abstract":"<div><p>In Central America and the Caribbean, periods of increased aridity that correspond to the Terminal Classic Drought (TCD; 1200–850 cal yr BP) and the Little Ice Age (LIA; 500–100 cal yr BP) have been documented in many paleoclimate records. Compound-specific hydrogen (δD_alkane) and carbon (δ¹³C_alkane) isotopic compositions of <em>n</em>-alkanes in lake sediment can be used to interpret changes in paleoprecipitation and terrestrial paleovegetation, respectively. To assess the climate forcing mechanisms that drove the TCD and LIA, we established a multidecadal to centennial-scale late-Holocene reconstruction of precipitation variability and vegetation change at mid-elevation on the Caribbean slope of Costa Rica, developed from new δD_alkane, δ¹³C_alkane, and geochemical analyses and previous pollen and microscopic charcoal analyses from a sediment core from Laguna María Aguilar. Laguna María Aguilar is a freshwater lake located at 770 m elevation on the Caribbean slope of the Cordillera Central. During the TCD, δD_alkane data for María Aguilar indicate relatively wet conditions compared to the mean δD_alkane value for the entire record. Other proxy records for the TCD indicate that the Pacific slope of Costa Rica and sites above 3400 m near the continental divide experienced generally drier conditions than mid- and low-elevations on the Caribbean slope. We conclude that the TCD may have been driven by both Pacific and Atlantic climate-forcing mechanisms. During the LIA, the Laguna María Aguilar δD_alkane record indicates an increase in hydroclimate variability, with some of the highest recorded δD_alkane values (driest conditions) during the earliest portions of the LIA, but conditions were not persistently dry for the entirety of the LIA. Based on regional paleoclimate records overall, the LIA drought appears to be more clearly expressed on the Caribbean slope than on the Pacific slope of Costa Rica, indicating that the LIA was perhaps driven primarily by Atlantic Ocean conditions and climate dynamics.</p></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142173056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 characteristics of modern flood deposits in the lower reaches of a small watershed and the significance of paleo-flood identification","authors":"","doi":"10.1016/j.quaint.2024.07.018","DOIUrl":"10.1016/j.quaint.2024.07.018","url":null,"abstract":"<div><p>The mountainous region of central Shandong Province in eastern China is renowned for its high frequency of rainstorms, which often result in devastating flood disasters and have profoundly affected the evolution of local ancient civilizations. To identify ancient flood disaster events, recognizing sediment signatures via multiple indices is important. Here, we investigated the 2018 flood deposits in the Danhe River Basin and sampled short core DH2, on which the grain size, total organic matter (TOM) content, carbonate content, magnetic susceptibility (MS) and pollen were measured. The fine grain size of the flood sedimentary layer reveals that the flood energy in the alluvial plain area is usually weak. The pollen species and concentration and the tree pollen content in the flood layer are significantly greater than those in the soil layer, suggesting that the flood sediment mainly originates from the mountainous areas in the upper reaches of the river, which provides more forest vegetation information. The MS of flood deposits is lower than that of the soil layer, which is mainly related to the intensity of pedogenesis. The research results indicate that the flood sediments in the downstream floodplain areas of small watersheds are predominantly composed of fine-grained components, with characteristics of high loss on ignition, low magnetic susceptibility, high pollen abundance and diverse species. These findings establish a multi-index identification system for paleoflood sedimentation, which has important reference significance for the study of paleoflood sedimentology and hydrology.</p></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142173055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An overview of Upper Pleistocene coastal deposits on Mallorca island","authors":"","doi":"10.1016/j.quaint.2024.07.013","DOIUrl":"10.1016/j.quaint.2024.07.013","url":null,"abstract":"<div><p>This review paper delves into the geological history of Mallorca, focusing on the Middle to Late Pleistocene period and its impact on the landscape and climate of the island. The Quaternary, particularly, the Last Interglacial, represents a relatively short timeframe on the global chronological scale, yet it is notable for its climatic instability and complex alternation of glacial and interglacial phases, leading to fluctuations in sea levels. During the last interglacial, millennial-scale fluctuations, known as Dansgaard–Oeschger and Heinrich events, occurred. Aeolianites are thought to have formed during periods of sparse vegetation cover and abundant sediment availability from the sea bed or platform (Heinrich events), while colluvial deposits and paleosols are believed to represent periods of reduced sediment supply and enhanced pedogenesis (Dansgaard–Oeschger events). These different deposits reflect climatic shifts and sea-level changes, offering insights into the environmental history of the island. Fossil evidence, including <em>Strombus bubonius</em> (currently known as <em>Thetystrombus lauts)</em> or “Senegalese hosts,” reveals past warm climatic fluctuations, particularly during the Last Interglacial. <em>Myotragus balearicus</em> exemplifies evolutionary adaptation and isolation on the island, offering a unique perspective on its paleontological legacy. The integration of stratigraphic characteristics and literature research on Optically Stimulated Luminescence (OSL) dating techniques provides a comprehensive temporal framework, spanning from Marine Isotope Stage 6 (MIS 6) to Marine Isotope Stage 2 (MIS 2), enabling the precise dating of geological events and a stratigraphic correlation.</p></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142230676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Past fire dynamics in sub-Saharan Africa during the last 25,000 years: Climate change and increasing human impacts","authors":"Laurent Bremond, Julie C. Aleman, Charly Favier, Olivier Blarquez, Daniele Colombaroli, Simon E. Connor, Carlos E. Cordova, Colin Courtney-Mustaphi, Abraham N. Dabengwa, Graciela Gil-Romera, William D. Gosling, Tamryn Hamilton, Vincent Montade, Andriantsilavo H.I. Razafimanantsoa, Mitchell J. Power, Estelle Razanatsoa, Ibouraïma Yabi, Boris Vannière, GPD contributors","doi":"10.1016/j.quaint.2024.07.012","DOIUrl":"https://doi.org/10.1016/j.quaint.2024.07.012","url":null,"abstract":"The aim of this study is to provide the drivers of long-term fire dynamics in various regions of Sub-Saharan Africa using a synthesis of updated sedimentary charcoal records, from 25,000 years ago to the present. We used the charcoal data currently available in the Global Paleofire Database, updated with the most recent published charcoal data, to reconstruct past biomass burning across the continent. We analyzed standardized charcoal data grouped by region (central Africa, eastern Africa, southern Africa, and Indian Ocean) and by vegetation type (forest, savanna, and shrubland). Within this framework, we found that quality data were lacking to reconstruct a robust trend in biomass burning before 5000 years at the continental scale. This large spatial scale was indeed masking regional peculiarities. Our results suggest that past changes in biomass burning were nuanced and cannot be simply attributed to either climate- or humans, and that they varied from each sub-regions and vegetation type history. In central Africa, biomass burning increased after the end of the African Humid Period and the first wave of Bantu-speaking people migration, whereas in East Africa and the Indian Ocean islands, it seems that human population growth was the main driver of fire activity. In South Africa, reduced rainfall seemed to offset fire activity due to population growth by reducing potentially flammable biomass. While the diversity of methodological techniques used to produce charcoal quantification made comparisons difficult, regional patterns still emerged from these data. This synthesis thus highlights the need to increase the number of sites with charcoal data and to harmonize charcoal extraction and quantification methods across Africa to improve regional to continental assessments of fire histories.","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141968950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"OSL re-dating and paleoclimate of Laoya Cave in Guizhou Province, southwest China","authors":"","doi":"10.1016/j.quaint.2024.07.009","DOIUrl":"10.1016/j.quaint.2024.07.009","url":null,"abstract":"<div><p>Laoya Cave is a significant prehistoric human site in Guizhou Province, Southwest China, and optically stimulated luminescence (OSL) and a Bayesian depositional model were used to update the chronology of the cave. Six OSL samples were dated to 16.7 ± 1.2, 18.0 ± 1.1, 28.8 ± 2.3, 32.1 ± 2.8, 57.7 ± 6.5, and 74.0 ± 5.9 ka, respectively, and the Bayesian deposition model has provided a coherent chronological framework, revealing boundaries with median ages of 18.5, 25.0, 27.5, 28.6, 29.9, and 74.4 ka for Boundaries 1/2, 2/3, 3/4, 4/5, 5/6, and 6/9, respectively. By comparing the new chronological framework with the related records of paleoclimate and human activities, we gain insight into the relationship between the environment and Paleolithic hominins at different times. During relatively warmer periods, humans tend to spread, while in relative colder climates, they tend to rely more heavily on caves and employ hunting strategies with an equal age distribution. These survival strategies help humans prevent the threats of cold weather. Additionally, the analysis of OSL dating results uncovers a discrepancy between OSL and accelerator mass spectrometry radiocarbon (AMS ¹⁴C) dating methods, with AMS ¹⁴C dates generally appearing older at later ages (&lt;∼30 ka). This phenomenon may be due to disturbances caused by human activity, and OSL dating may recognize this to some extent.</p></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142230675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating Roman influence in southeast Europe by zooarchaeological meta-analysis","authors":"","doi":"10.1016/j.quaint.2023.10.005","DOIUrl":"10.1016/j.quaint.2023.10.005","url":null,"abstract":"<div><p>This study uses increased specialisation in husbandry practice and the development of larger livestock as a proxy for spatial and temporal variation in Roman influence in southeast Europe. Data are presented from three regions subject to varying levels of Roman control: (a) the Balkan provinces, under long-term occupation; (b) Dacia, a province from 106 to 271/275 CE; and (c) regions beyond the Empire to the northwest and northeast. While little change in husbandry practice occurs during the early Roman occupation in the first centuries BCE and CE, clear changes are evident across occupied regions in the second and third centuries CE. A cattle-focused economic system develops, likely influenced by an increased focus on arable production, and a significant increase in cattle and sheep/goat size is observed. In the Balkan provinces, while larger livestock persist into the early Byzantine period, there is a decline in specialised cattle exploitation at rural sites in the late Roman period, and at urban sites in the early Byzantine period, concurrent with a decrease in Roman political control. In Dacia, in contrast, average livestock size decreases after the Roman withdrawal, while specialised cattle husbandry persists for several centuries. Beyond the Empire, specialised cattle husbandry is evident from the late Iron Age, but increases in the second and third centuries, perhaps indicating the spread of Roman influence beyond occupied regions.</p></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1040618223003178/pdfft?md5=adf96f5ccecb4e79149c814aafe3c707&pid=1-s2.0-S1040618223003178-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135410827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Let me be fodder: Unravelling human and animal derived plant remains recovered from Roman Mursa, Croatia","authors":"","doi":"10.1016/j.quaint.2024.02.008","DOIUrl":"10.1016/j.quaint.2024.02.008","url":null,"abstract":"<div><p>Although evidence is sporadic it is becoming clear that haymaking and hay meadow management were likely indispensable elements of practices related to animal husbandry during the Roman period. As large towns begin to emerge, success in breeding large livestock such as cattle and horses would have required good quality fodder. Yet, how we distinguish fodder or other animal associated plant remains in the archaeological record can be problematic for many reasons. This paper explores this issue through the context of Roman Mursa, located in modern day Osijek, Croatia. Two pits dating to c. AD133, contained relatively large quantities of grassland and wet ground species, such as <em>Trifolium/Melilotus</em> sp. <em>Prunella vulgaris</em> and the grasses <em>Poa</em> sp. and <em>Phleum</em> sp., as well as chaff and other remains, such as dung, eggshells, and fish scales. By examining the proportion of species grouped into habitat types, we see that the composition of sample SU391 is indictive of hay meadows and could indicate nearby animal stabling in the centre of the early Roman colony.</p></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1040618224000533/pdfft?md5=dc9705cbe19b19b683f47319174e85e9&pid=1-s2.0-S1040618224000533-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139927391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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":"Evidence of forestry management and arboriculture practices in waterlogged wood remains from three wells at the Roman and late antiquity sites of Iesso and Vilauba (Catalonia, Spain)","authors":"","doi":"10.1016/j.quaint.2024.01.008","DOIUrl":"10.1016/j.quaint.2024.01.008","url":null,"abstract":"<div><p>The aim of this paper is to provide new data on forest management and arboricultural practices in the Roman and Late Antique periods in the north-eastern Iberian Peninsula. In this study, the waterlogged branches found in three wells at the sites of Iesso and Vilauba in the northeast of the Iberian Peninsula were analysed. To determine management practices the roundwood method, based on the correlation between age and diameter, has been applied. The study has revealed the presence of a wide range of species collected on surrounding forests, especially in riparian forest. Moreover, it is remarkable the abundance of fruit trees at both sites, being the most abundant <em>Prunus</em> sp. The comparison of the archaeological branches with a reference collection of modern twigs from cultivated and non-managed individuals of the Prunaceae family, <em>Salix</em> sp. and <em>Sambucus nigra</em>, has provided clear evidence of management practices in these taxa. In addition, direct evidence of pruning was observed on some branches of <em>Vitis vinifera</em>.</p></div>","PeriodicalId":49644,"journal":{"name":"Quaternary International","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1040618224000089/pdfft?md5=21636d4c298da5f31dd0475e0bbf6199&pid=1-s2.0-S1040618224000089-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139680195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}