E&G Quaternary Science Journal最新文献

{"title":"The late Holocene record of Lake Mareotis, Nile Delta, Egypt","authors":"C. Flaux, M. Giaime, V. Pichot, N. Marriner, Mena el-Assal, A. Guihou, P. Deschamps, C. Claude, C. Morhange","doi":"10.5194/EGQSJ-70-93-2021","DOIUrl":"https://doi.org/10.5194/EGQSJ-70-93-2021","url":null,"abstract":"Abstract. Lake Maryut (northwestern Nile Delta, Egypt) was a key feature of\u0000Alexandria's hinterland and economy during Greco-Roman times. Its shores\u0000accommodated major economic centers, and the lake acted as a gateway between\u0000the Nile valley and the Mediterranean. It is suggested that lake-level\u0000changes, connections with the Nile and the sea, and possible high-energy\u0000events considerably shaped the human occupation history of the Maryut. To\u0000reconstruct Lake Maryut hydrology in historical times, we used faunal\u0000remains, geochemistry (Sr isotopic signature of ostracods) and\u0000geoarcheological indicators of relative lake-level changes. The data show\u0000both a rise in Nile inputs to the basin during the first millennia BCE and CE\u0000and a lake-level rise of ca. 1.5 m during the Roman period. A high-energy\u0000deposit, inferred from reworked radiocarbon dates, may explain an enigmatic\u0000sedimentary hiatus previously attested to in Maryut's chronostratigraphy.\u0000","PeriodicalId":11420,"journal":{"name":"E&G Quaternary Science Journal","volume":"32 1","pages":"93-104"},"PeriodicalIF":0.0,"publicationDate":"2021-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91260194","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":"A comparison of polymineral and K-feldspar post-infrared infrared stimulated luminescence ages of loess from Franconia, southern Germany","authors":"N. Rahimzadeh, Tobias Sprafke, C. Thiel, B. Terhorst, M. Frechen","doi":"10.5194/EGQSJ-70-53-2021","DOIUrl":"https://doi.org/10.5194/EGQSJ-70-53-2021","url":null,"abstract":"Abstract. Loess-paleosol sequences (LPSs) are essential records for reconstructing Quaternary paleoenvironments. No previous study has provided\u0000numerical chronologies of loess in Lower Franconia, southern Germany; their\u0000chronostratigraphic assumptions have relied mainly on German\u0000(pedo)stratigraphic schemes. In this study, we provide for the first time a\u0000chronology for LPSs in Lower Franconia based on optically stimulated\u0000luminescence (OSL) dating using quartz and a comparison of K-feldspar\u0000(63–100 µm) and the polymineral fraction (4–11 µm). Our results show that all obtained ages are in stratigraphic order, ranging from\u0000Holocene to late Pleistocene, and in general confirm the former\u0000stratigraphical interpretations. A good agreement of the obtained ages is\u0000observed between both feldspar grain size fractions; they also agree well\u0000with the quartz OSL ages up to ∼50 ka. However, a marked\u0000difference between the growth pattern of the dose response curves and\u0000consequently different saturation characteristics of fine and coarse grains\u0000is found. Even though in our samples the discrepancy in ages is not very\u0000significant, we suggest the use of coarse-grained K-feldspar whenever\u0000possible in order to not be confronted with unknowns such as the mineral\u0000composition of the polymineral fraction.\u0000","PeriodicalId":11420,"journal":{"name":"E&G Quaternary Science Journal","volume":"115 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73400610","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":"A new look at the Butic Canal, Egypt","authors":"R. Schiestl","doi":"10.5194/EGQSJ-70-29-2021","DOIUrl":"https://doi.org/10.5194/EGQSJ-70-29-2021","url":null,"abstract":"Abstract. The Butic Canal – a Roman period transversal route across\u0000the northern Nile Delta – was the longest artificial watercourse in the Nile\u0000Delta, yet it remains very poorly understood. To date, the canal has not yet\u0000been verified by archeological excavations. The route of the eastern\u0000section of the canal has been indirectly identified based on a linear\u0000elevated feature most likely representing earth from the excavation of the\u0000canal. This study combines the analysis of historical sources and remote\u0000sensing data, such as satellite imagery and the TanDEM-X digital elevation\u0000model, in order to discuss its date of construction, route, and functions.\u0000Based on the data of the digital elevation model, new constructional\u0000features are visible in the eastern delta providing the first detailed\u0000route of a Roman-era artificial watercourse in Egypt. It is suggested that\u0000the canal's construction is placed in the context of imperial investments in\u0000the infrastructure of the eastern part of the Roman empire.\u0000","PeriodicalId":11420,"journal":{"name":"E&G Quaternary Science Journal","volume":"136 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74220718","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":"Nomes of Lower Egypt in the early Fifth Dynasty","authors":"M. Khaled","doi":"10.5194/EGQSJ-70-19-2021","DOIUrl":"https://doi.org/10.5194/EGQSJ-70-19-2021","url":null,"abstract":"Abstract. Having control over the landscape played an important\u0000role in the geography and economy of Egypt from the predynastic period\u0000onwards. Especially from the beginning of the Old Kingdom, we have evidence\u0000that kings created new places (funerary domains) called (centers) and\u0000 (Ezbah) for the equipment of the building projects of the royal tomb and\u0000the funerary cult of the king, as well as to ensure the eternal life of both\u0000kings and individuals. Kings used these localities in order to do so, and they\u0000oftentimes expanded the border of an existing nome and created new\u0000establishments. Consequently, these establishments were united or divided\u0000into new nomes. The paper discusses the geography of Lower Egypt and the\u0000associated royal domains in the early Fifth Dynasty based on the new\u0000discoveries from the causeway of Sahura at Abusir.\u0000","PeriodicalId":11420,"journal":{"name":"E&G Quaternary Science Journal","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86157154","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":"Local mineral dust transported by varying wind intensities forms the main substrate for loess in Kashmir","authors":"C. Zeeden, J. Mir, M. Vinnepand, Christian Laag, C. Rolf, R. Dar","doi":"10.5194/egqsj-70-191-2021","DOIUrl":"https://doi.org/10.5194/egqsj-70-191-2021","url":null,"abstract":"<jats:p> </jats:p>","PeriodicalId":11420,"journal":{"name":"E&amp;G Quaternary Science Journal","volume":"136 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86306817","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":"Snail assemblages in Holocene floodplain research – an example from the southern Caucasus","authors":"H. von Suchodoletz, C. Richter, F. Walther, M. Bliedtner, Mariam Eloshvili, L. Losaberidze, B. Hausdorf","doi":"10.5194/egqsj-69-247-2020","DOIUrl":"https://doi.org/10.5194/egqsj-69-247-2020","url":null,"abstract":"Abstract. During the last decades, rivers and their deposits in different\u0000regions were intensively studied to better understand the late-Quaternary\u0000landscape evolution and former human activities. One proxy for\u0000paleoecological and paleoclimatic reconstructions is the analysis of gastropods\u0000(snails) from carbonatic river sediments. In the scope of this study, we\u0000investigated gastropod assemblages from a Holocene fluvial sediment–paleosol\u0000sequence at the upper Alazani River in the southeastern Caucasus. On the one\u0000hand, we aimed to derive reliable independent information about possible\u0000long-lasting human activity since the late Neolithic–Chalcolithic in the\u0000upper Alazani floodplain. This was formerly suggested by n-alkane biomarker\u0000vegetation reconstructions from the fluvial sediments. However, the\u0000reliability of that method is still debated. On the other hand, we aimed to\u0000obtain reliable information about a formerly suggested, possibly\u0000tectonic-driven, large-scale shift of the river course during the Late\u0000Holocene. In agreement with the n-alkane biomarkers, our results demonstrate\u0000that the studied site was free of the natural forests during the Early and\u0000Middle Holocene until ca. 4.5 cal kyr BP. Since this contrasts with a\u0000pollen-based vegetation reconstruction from a neighboring floodplain that\u0000was covered with forests during that time, the open vegetation in the upper\u0000Alazani valley was probably caused by continuous settlement activity as is\u0000also indicated by archeological finds in the sequence. Therefore, using our\u0000paleoecological proxies it is possible that we identified a settlement\u0000center in the upper Alazani floodplain that was populated from the late Neolithic–Chalcolithic. This center was not known thus far, since the\u0000settlement remains are covered by thick floodloam today that hindered their\u0000detection during archeological surface surveys. Therefore, our findings\u0000suggest that the area in the southern Caucasus region that was settled\u0000during the late-Neolithic–Chalcolithic period should have been larger than\u0000was known thus far. Furthermore, increasing contributions of wetland\u0000gastropods since ca. 4 cal kyr BP confirm a local shift of the river course\u0000towards the investigated site during the Late Holocene, possibly linked with\u0000ongoing tectonic activity. However, in contrast to former suggestions our\u0000gastropod assemblages indicate a slow rather than abrupt process. Our study\u0000demonstrates the high value of gastropod assemblages for geoarcheological\u0000and geomorphological research in floodplains with carbonatic river sediments\u0000at both a regional and local spatial scale.\u0000","PeriodicalId":11420,"journal":{"name":"E&amp;G Quaternary Science Journal","volume":"176 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73959928","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":"Proposing a new conceptual model for the reconstruction of ice dynamics in the SW sector of the Scandinavian Ice Sheet (SIS) based on the reinterpretation of published data and new evidence from optically stimulated luminescence (OSL) dating","authors":"C. Lüthgens, Jacob Hardt, M. Böse","doi":"10.5194/egqsj-69-201-2020","DOIUrl":"https://doi.org/10.5194/egqsj-69-201-2020","url":null,"abstract":"Abstract. We propose a new concept of the Weichselian ice dynamics in the south-western sector of the Baltic Sea depression. The review of existing geochronological data from Germany, Denmark and southernmost Sweden in combination with new optically stimulated luminescence (OSL) data from the German Oder Lobe area is the basis for a reassessment and an improvement of previous ice dynamic models. Factors like the pre-existing topography, glaciotectonic features and the occurrence of till beds and inter-till deposits of varying origin are also taken into consideration for our process-based reconstruction of the sedimentary environments close to the ice margin and hence the ice dynamics of the Scandinavian Ice Sheet (SIS). During the early MIS 3 (marine isotope stage), the late MIS 3 and MIS 2, the SIS advanced into present-day terrestrial areas around the south-western Baltic Sea Basin. The first ice advance during the warming phase in early MIS 3 is poorly documented as the Ellund–Warnow Advance in Germany but may be correlated with the numerically dated Ristinge Advance in Denmark and Sweden. The late MIS 3 advance in contrast is reliably documented. It shaped the landforms of the Brandenburg Advance and the maximum Weichselian ice extent in the Oder Lobe area in north-eastern Germany and occurred contemporaneously with the Klintholm Advance in southern Sweden and Denmark. The lack of a corresponding till in various cliff profiles along the Baltic Sea coastline between southern Schleswig-Holstein and the island of Rügen can be explained by the distinct lobate structure of this ice advance, which was strongly guided by the pre-existing low-lying topography. We propose the horst of Bornholm, Denmark, acting as an ice divide, with ice-dammed lakes existing on the lee side between two glacier lobes. This lobate structure had not been considered in previous conceptual models, which led to seemingly conflicting chronological and stratigraphical interpretations. Our introduction of the lobate structure for the first time resolves these contradictions and integrates the data in a coherent model. The dynamics of the MIS 2 readvance to the Last Glacial Maximum (LGM) extent were clearly different to the previous advance and were most likely characterized by a more uniformly advancing ice front with a less lobate structure which also overrode the horst of Bornholm and the island of Rügen. This advance reached the maximum Weichselian ice extent in some parts of the south-western SIS, but, in the Oder Lobe area, it is proven to have terminated at a lesser extent than the early MIS 3 advance, but it did shape the most prominent morphological landform record of the last glacial cycle. In order to advance the reconstruction of Weichselian ice dynamics in the future, we strongly suggest using both an MIS-based terminology and a process-based approach in the interpretation of geochronological data to live up to the dynamic nature of continental ice sheets.","PeriodicalId":11420,"journal":{"name":"E&amp;G Quaternary Science Journal","volume":"97 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76110015","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 multistage structural development of the Upper Weichselian Jasmund Glacitectonic Complex (Rügen, NE Germany)","authors":"Anna Gehrmann","doi":"10.5194/EGQSJ-69-59-2020","DOIUrl":"https://doi.org/10.5194/EGQSJ-69-59-2020","url":null,"abstract":"<jats:p>\u0000 </jats:p>","PeriodicalId":11420,"journal":{"name":"E&amp;G Quaternary Science Journal","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89892991","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":"New findings of Middle Stone Age lithic artifacts from the Matmata loess region in southern Tunisia","authors":"D. Faust, S. Kreutzer, Yesmine Trigui, Maximilian Pachtmann, Georg Mettig, Moncef Bouaziz, J. M. Recio Espejo, F. Díaz del Olmo, Christoph Schmidt, T. Lauer, Ž. Režek, A. Fülling, Sascha Meszner","doi":"10.5194/egqsj-69-55-2020","DOIUrl":"https://doi.org/10.5194/egqsj-69-55-2020","url":null,"abstract":"<jats:p>\u0000 </jats:p>","PeriodicalId":11420,"journal":{"name":"E&amp;G Quaternary Science Journal","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75004984","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":"Long-term human impact and environmental change in mid-western Ireland, with particular reference to Céide Fields – an overview","authors":"M. O’Connell, Karen Molloy, Eneda Jennings","doi":"10.5194/egqsj-69-1-2020","DOIUrl":"https://doi.org/10.5194/egqsj-69-1-2020","url":null,"abstract":"Abstract. This paper presents new palaeoecological data from north\u0000County Mayo (Co. Mayo), western Ireland, and reviews published data with a view to\u0000achieving a better understanding of the timing and nature of early farming\u0000in the region, its impact on the natural environment, and the factors,\u0000including climate change, that influenced mid- and late-Holocene vegetation\u0000dynamics and farming in the region. A long pollen profile from Glenulra, a\u0000deep basin situated within Céide Fields, and short profiles from blanket\u0000peat that overlies the prehistoric stone-wall field system provide\u0000unambiguous evidence for substantial farming, including widespread woodland\u0000clearance, in the early British and Irish Neolithic (beginning ca. 3800 BCE).\u0000This was followed by a distinct lull that lasted several centuries until\u0000farming activity resumed again, at first modestly (at ca. 2700 BCE) and then\u0000more markedly from 2350 BCE, i.e. at the Neolithic–Chalcolithic transition. It\u0000is argued on the basis of this and other palaeoecological evidence,\u0000including pollen analytical investigations at nearby Garrynagran, that,\u0000contrary to recent suggestions, there is no reason to doubt the widely held\u0000view that the stone-wall field system – unique in a western European\u0000Neolithic context – is correctly ascribable to the earlier part of the\u0000British and Irish Neolithic. The history of pine growing in bog contexts (mainly\u0000blanket bog) in the region is considered in the light of 14C dates\u0000derived from pine timbers, and the results of dendrochronological\u0000investigations at Garrynagran that have enabled two floating pine\u0000chronologies to be constructed, are presented. The climatic implications of\u0000these data are discussed within local and wider regional contexts.\u0000","PeriodicalId":11420,"journal":{"name":"E&amp;G Quaternary Science Journal","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75087772","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}