Open Quaternary最新文献_第2页

From 20,000 Years Ago to Near Present Climate Classification of North America 2万年前到近现代的北美气候分类

Open Quaternary Pub Date : 2022-01-01 DOI: 10.5334/oq.116

B. Hanberry

引用次数: 0

Investigating Past Livestock Mobility Using δ34S Stable Isotopes: Three Preliminary Case Studies From Prehistoric Croatia 利用δ34S稳定同位素调查过去牲畜的流动性:来自史前克罗地亚的三个初步案例研究

Open Quaternary Pub Date : 2022-01-01 DOI: 10.5334/oq.113

E. Zavodny, S. McClure, B. Culleton, E. Podrug, J. Balen, I. Drnić, D. Kennett

引用次数: 1

Polar Bear Fossil and Archaeological Records from the Pleistocene and Holocene in Relation to Sea Ice Extent and Open Water Polynyas 更新世和全新世北极熊化石和考古记录与海冰范围和开放水域冰融的关系

Open Quaternary Pub Date : 2022-01-01 DOI: 10.5334/oq.107

S. Crockford

引用次数: 1

Assessing Open Science Practices in Phytolith Research 评估植物岩研究中的开放科学实践

Open Quaternary Pub Date : 2022-01-01 DOI: 10.5334/oq.88

Emma Karoune

引用次数: 1

Data on Holocene Fossil Benthic Foraminifera from Sunda Shelf, Offshore Southeastern Peninsular Malaysia 马来西亚东南半岛巽他陆架全新世底栖有孔虫化石资料

Open Quaternary Pub Date : 2021-12-30 DOI: 10.5334/oq.104

Rokiah Suriadi, H. Shaari, S. Suratman, A. Sulaiman

引用次数: 1

Investigating Past and Present Carpometacarpus Morphology in Mimidae: A Multi-Methods Approach to Evidence from the Guadeloupe Islands 调查过去和现在咪咪科中的腕足虫形态：瓜德罗普群岛证据的多方法研究

Open Quaternary Pub Date : 2021-12-22 DOI: 10.5334/oq.99

Nicolas Jeantet, Ronan Ledevin, M. Gala, A. Lenoble, F. Santos, V. Laroulandie

引用次数: 0

Paleo Mega Lake of Rey Identification and Reconstruction of Quaternary Lake in Central Iran 雷伊古巨型湖伊朗中部第四纪湖泊的识别与重建

Open Quaternary Pub Date : 2021-09-30 DOI: 10.5334/oq.94

H. Jarahi

{"title":"Paleo Mega Lake of Rey Identification and Reconstruction of Quaternary Lake in Central Iran","authors":"H. Jarahi","doi":"10.5334/oq.94","DOIUrl":"https://doi.org/10.5334/oq.94","url":null,"abstract":"This study presents evidence for the existence of a vast and ancient lake that occupyed a large area of central Iran during the Holocene. The northwestern fringe of the lake, located in the southeast of Tehran, was chosen as the study area. Remains of a Paleo Lake scarp was studied using aerial photographs, Quick Bird satellite imagery, and topographic maps. Furthermore, archeological sites within the region were identified and located, and evidence for the lake was obtained through correlation of these data. Eight shorelines were identified between 1100 – 950 m above sea level, with a depth of 3 – 15 m, and a 43 km in lenght. The results indicated that the active Quaternary faults named North Rey, Kahrizak, and South Rey are in fact the three main topographic levels of the paleo lake and from now on they cannot be considered as the faults. Soil granulation and thin sections showed the presence of non-compacted lake sediments. Results revealed a remarkable association between the location of ancient settlements and altitude of the identified paleo shorelines. All settlements older than 5,000 years were located at 1,000 m. Certainly, the past climate of this region was very different from its contemporary one. Dating studies will provide valuable information about the exact age of the Paleo -Lake and paleo climate changes.","PeriodicalId":37172,"journal":{"name":"Open Quaternary","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45635780","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}

引用次数: 2

A Maxent Predictive Model for Hunter-Gatherer Sites in the Southern Pampas, Argentina 阿根廷潘帕斯南部狩猎采集者遗址的Maxent预测模型

Open Quaternary Pub Date : 2021-09-21 DOI: 10.5334/oq.97

Daniel J. Rafuse

{"title":"A Maxent Predictive Model for Hunter-Gatherer Sites in the Southern Pampas, Argentina","authors":"Daniel J. Rafuse","doi":"10.5334/oq.97","DOIUrl":"https://doi.org/10.5334/oq.97","url":null,"abstract":"The following paper presents the results of a Species Distribution Model (SDM) for grassland hunter-gatherer archaeology sites in the southern Pampas region of Argentina. The goal of this exploratory model is to provide a complementary survey model for the detection of archaeological sites in this region, which will also help characterize and discuss site locations and regional distribution patterns of hunter-gatherer occupations. Even in this largely homogenous and highly dynamic landscape, SDMs can help guide archaeological surveys by identifying some environmental variables affecting hunter-gatherer decisions, and can provide insights into mobility and archaeological settlement patterns. Among the available tools for SDM, Maximum Entropy Modeling (Maxent) is one of the most widely used approaches in archaeological predictive modelling. After controlling for bias and adjustment of several modifiable parameters, the Maxent software provided a potentially effective predictive model to direct future archaeological survey and heritage management projects. The results of this research suggest that watercourses and slope were the key environmental factors influencing the distribution of hunter-gatherer archaeological sites in the southern Pampas region.","PeriodicalId":37172,"journal":{"name":"Open Quaternary","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70695601","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}

引用次数: 4

Subsurface and Infaunal Foraminifera of Kemaman-Chukai Mangrove Swamps, East Coast Peninsular Malaysia 马来西亚东海岸半岛Kemann Chukai红树林沼泽的地下和动物群有孔虫

Open Quaternary Pub Date : 2021-08-19 DOI: 10.5334/oq.95

Rokiah Suriadi, Wan Nurzalia Wan Saelan, B. Satyanarayana, S. Suratman, H. Shaari

{"title":"Subsurface and Infaunal Foraminifera of Kemaman-Chukai Mangrove Swamps, East Coast Peninsular Malaysia","authors":"Rokiah Suriadi, Wan Nurzalia Wan Saelan, B. Satyanarayana, S. Suratman, H. Shaari","doi":"10.5334/oq.95","DOIUrl":"https://doi.org/10.5334/oq.95","url":null,"abstract":"This study analysed the distribution and abundance of dead and live (Rose Bengal stained) infaunal foraminifera from three short cores taken at three locations in the mangrove swamps of Kemaman-Chukai, Terengganu, Malaysia. Eighteen agglutinated taxa were recorded in assemblages dominated by Arenoparrella mexicana, Haplophragmoides wilberti and Miliammina fusca; and of these, only two taxa were recorded as live. The distribution of subsurface and infaunal foraminifera varied from core to core, as did their depth of occurrence. Core 1 (seaward core) was dominated by sandy deposits, relatively high salinity (32 ppt), and extensive crab mounds, displayed very low numbers of dead foraminifera inconsistently throughout the core, while no infaunal foraminifera were observed, indicating intense bioturbation by mangrove crabs. In Core 2 (middle core), even though the numbers of live foraminifera decreased down-core, the number of dead or subsurface foraminifera were inconsistent, indicating taphonomic loss of the tests. Core 3 (landward core) however, displayed ideal foraminiferal distribution patterns required in the palaeo sea-level reconstruction (with less taphonomic loss and decreasing number of infaunal foraminifera downcore). Because of the similarity displayed in the foraminiferal assemblages in the 0–1 cm and 10–11 cm intervals, the surface sample (0–1 cm) should be an acceptable basis for down-core reconstructions in this study. Live (Rose Bengal stained) infaunal foraminifera, though observed at 40–41 cm depth, are not considered abundant enough to influence the dead assemblage in the subsurface sediment and its applicability for palaeoenvironmental and sea-level reconstructions. Therefore, it is possible for palaeo sea-level to be reconstructed based on foraminiferal assemblages preserved in the Kemaman-Chukai mangrove swamps.","PeriodicalId":37172,"journal":{"name":"Open Quaternary","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45831253","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}

引用次数: 1

Development of a Training Set of Contemporary Salt-Marsh Foraminifera for Late Holocene Sea- Level Reconstructions in southeastern Australia 澳大利亚东南部晚全新世海平面重建用当代盐沼有孔虫训练集的建立

Open Quaternary Pub Date : 2021-06-30 DOI: 10.5334/oq.93

Sophie Williams, E. Garrett, P. Moss, R. Bartlett, R. Gehrels

{"title":"Development of a Training Set of Contemporary Salt-Marsh Foraminifera for Late Holocene Sea- Level Reconstructions in southeastern Australia","authors":"Sophie Williams, E. Garrett, P. Moss, R. Bartlett, R. Gehrels","doi":"10.5334/oq.93","DOIUrl":"https://doi.org/10.5334/oq.93","url":null,"abstract":"We collected contemporary foraminiferal training sets from two salt marshes to enable more precise and accurate proxy historical sea-level reconstructions from southeastern Australia. Combined with an existing training set from Tasmania, this new regional set consists of 112 samples and 16 species of foraminifera, of which 13 are agglutinated. Cluster analyses group the regional training set into a high–elevation cluster, dominated by Trochamminita salsa, a mid–elevation cluster, dominated by Entzia macrescens and Trochammina inflata, and a mid–low elevation cluster dominated by Miliammina fusca and tidal-flat species. We develop transfer functions using local and regional training sets and assess their performance. Our resulting site-specific and chosen regional models are capable of predicting sea level with decimetre-scale precision (95% confidence intervals of 0.12–0.22 m). These results are comparable to other examples from around the world. When developing regional training sets, we advocate that the similarity in the environmental settings (particularly salinity) should be assessed as an alternative way of grouping sites, rather than simply using spatial proximity. We compare our findings with global results and conclude that salt marshes along microtidal coasts yield models with the lowest vertical uncertainties. Studies with the lowest uncertainties are located in the western Pacific and the western Atlantic, whereas those from the eastern Atlantic generally have larger tidal ranges and carry larger vertical uncertainties. Our models expand the existing region available for sea-level reconstruction and can be used to generate new late Holocene sea-level reconstructions across southeastern Australia.","PeriodicalId":37172,"journal":{"name":"Open Quaternary","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44193073","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}

引用次数: 7