Jump to Main Content
PubAg
Main content area
Search
« Previous |
1 - 20 of 22
|
Next »
Search Results
- Author:
- Ferreira, Fabricio; Frontalini, Fabrizio; Leão, Carolina J.; Leipnitz, Itamar I.
- Source:
- Quaternary international 2014 v.352 pp. 111-123
- ISSN:
- 1040-6182
- Subject:
- Retaria; basins; benthic organisms; organic matter; plankton; stable isotopes; Atlantic Ocean; Brazil
- Abstract:
- ... Based on an integrated approach (planktonic and benthic foraminifera and stable isotopes) carried out in two cores collected on continental slope of Santos Basin (central Brazil), the paleoceanographic oscillations of the last ∼570 ka are documented. Benthic foraminiferal isotopic records coupled with foraminiferal assemblages analyses show ∼100 ky long-term oscillation in the superficial producti ...
- DOI:
- 10.1016/j.quaint.2014.07.061
-
http://dx.doi.org/10.1016/j.quaint.2014.07.061
- Author:
- Dantas, Mário André Trindade; Santos, Daivisson Batista; Liparini, Alexandre; Queiroz, Albérico Nogueira de; Carvalho, Olivia Alexandre de; Castro, Érika Sousa Vieira de; Cherkinsky, Alexander
- Source:
- Quaternary international 2014 v.352 pp. 197-199
- ISSN:
- 1040-6182
- Subject:
- fauna; humans; radiocarbon dating; Brazil
- Abstract:
- ... We present a radiocarbon date (12,742–12,562 cal BP) for an Eremotherium laurillardi tooth found in Sergipe state, northeastern Brazil, which shows anthropogenic marks. Our result provides additional information and reinforces the hypothesis that humans was present in South America earlier than accepted currently, and interacted with megafauna during the late Pleistocene in this region. ...
- DOI:
- 10.1016/j.quaint.2014.09.040
-
http://dx.doi.org/10.1016/j.quaint.2014.09.040
- Author:
- Lopes, Renato P.; Kinoshita, Angela; Baffa, Oswaldo; Figueiredo, Ana Maria Graciano; Dillenburg, Sérgio Rebello; Schultz, Cesar Leandro; Pereira, Jamil Corrêa
- Source:
- Quaternary international 2014 v.352 pp. 124-134
- ISSN:
- 1040-6182
- Subject:
- Bivalvia; European Union; Retaria; coastal plains; electron paramagnetic resonance spectroscopy; fossils; mammals; sea level; sediments; uranium; water temperature; Brazil
- Abstract:
- ... The Coastal Plain of Rio Grande do Sul state (CPRS), in southern Brazil, encompasses four barrier-lagoon depositional systems formed by marine highstands during the Quaternary, but the ages of the Pleistocene systems older than ∼125 ka are not precisely known due to the lack of numerical dates. In order to refine the chronology of these deposits, several fossils of terrestrial mammals collected in ...
- DOI:
- 10.1016/j.quaint.2013.07.020
-
http://dx.doi.org/10.1016/j.quaint.2013.07.020
- Author:
- Gernet, Marcos Vasconcellos; Melo, Vander Freitas; Dieckow, Jeferson; Lima, Valmiqui Costa; Silva, Wilson Tadeu Lopes
- Source:
- Quaternary international 2014 v.352 pp. 135-146
- ISSN:
- 1040-6182
- Subject:
- archaeology; clay fraction; coasts; cooking; foods; humans; quality of life; shell (molluscs); silicates; Brazil
- Abstract:
- ... The publications related to pedological characterization of shell middens are rare, and there are no comprehensive studies. The objective of the present study was to understand habits and intensity of seasonal human occupancies and genesis of stratigraphic levels of an archaeological site on Paraná State coast, Brazil. The formation of the shell midden by hunter–fisher–gatherer groups over thousan ...
- DOI:
- 10.1016/j.quaint.2014.06.044
-
http://dx.doi.org/10.1016/j.quaint.2014.06.044
- Author:
- Li, Jiaguang; Donselaar, Marinus E.; Hosseini Aria, Seyed Enayat; Koenders, Roderik; Oyen, Anneleen M.
- Source:
- Quaternary international 2014 v.352 pp. 100-110
- ISSN:
- 1040-6182
- Subject:
- Advanced Spaceborne Thermal Emission and Reflection Radiometer; Landsat; arid lands; atmospheric precipitation; basins; rivers; sand; spatial data; time series analysis; watersheds; Bolivia; Colorado
- Abstract:
- ... In this remote sensing-based study, we present the analysis of the geomorphological development at the low-gradient terminus of the modern Río Colorado dryland river system in the endorheic Altiplano Basin (Bolivia). Changes in the river morphology occur after short periods of catastrophic peak discharge which result in the expansion of existing crevasse splays, formation of new crevasse splays an ...
- DOI:
- 10.1016/j.quaint.2014.06.041
-
http://dx.doi.org/10.1016/j.quaint.2014.06.041
- Author:
- Kerber, Leonardo; Ribeiro, Ana Maria; Lessa, Gisele; Cartelle, Cástor
- Source:
- Quaternary international 2014 v.352 pp. 147-158
- ISSN:
- 1040-6182
- Subject:
- Holocene epoch; Myocastor coypus; caatinga; fossils; rodents; Argentina; Bolivia; Brazil; Uruguay
- Abstract:
- ... Myocastor Kerr, 1792 is a semi-aquatic caviomorph rodent that lives in southern South America. Pleistocene fossils of Myocastor are known from Argentina, Bolivia, Uruguay, and Brazil. This contribution is intended to clarify the taxonomic situation of the specimens of this taxon from the Brazilian Quaternary. The material was collected in late Quaternary localities from the states of Bahia, Minas ...
- DOI:
- 10.1016/j.quaint.2013.11.022
-
http://dx.doi.org/10.1016/j.quaint.2013.11.022
- Author:
- Charó, M.P.; Gordillo, S.; Fucks, E.E.; Giaconi, L.M.
- Source:
- Quaternary international 2014 v.352 pp. 26-47
- ISSN:
- 1040-6182
- Subject:
- Gastropoda; Mesodesma; beaches; carnivores; cliffs; climate change; coasts; dominant species; euryhaline species; fauna; littoral zone; molluscs; paleoecology; statistical analysis; temperature; Argentina; Atlantic Ocean
- Abstract:
- ... The Late Quaternary in the coastal area of South America is represented mostly by littoral ridges, cliffs and tidal plains, with associated remains of gastropods and bivalves currently used as paleoclimatic indicators. The aim of this study is to characterize the assemblages of molluscs (bivalves and gastropods) both Pleistocene (≥MIS 9, MIS 7, MIS 5e) and Holocene (MIS 1), from the northern San M ...
- DOI:
- 10.1016/j.quaint.2013.12.044
-
http://dx.doi.org/10.1016/j.quaint.2013.12.044
- Author:
- Elston, R.G.; Zeanah, D.W.; Codding, B.F.
- Source:
- Quaternary international 2014 v.352 pp. 200-211
- ISSN:
- 1040-6182
- Subject:
- basins; environmental factors; foraging; human behavior; men; paleoecology; ungulates; wetlands; women
- Abstract:
- ... A tremendous amount has been learned about the Prearchaic (before 9000 BP) Great Basin since we advocated a perspective of sexual division of labor based on Human Behavioral Ecology a decade ago. Many investigators have taken our advice and a few have challenged our assumptions and inferences. One of the most substantive critiques has been that we misunderstood the paleoenvironmental parameters of ...
- DOI:
- 10.1016/j.quaint.2014.09.064
-
http://dx.doi.org/10.1016/j.quaint.2014.09.064
- Author:
- Taglioretti, V.; Sardella, N.H.; Fugassa, M.H.
- Source:
- Quaternary international 2014 v.352 pp. 64-67
- ISSN:
- 1040-6182
- Subject:
- Hippocamelus bisulcus; Lama guanicoe; discriminant analysis; feces; morphometry; paleoecology; pellets; wildlife; Argentina
- Abstract:
- ... The identification of the zoological origin of coprolites is important to infer paleoecological characteristics of ancient wildlife. The aim of this study was to design a reliable tool to distinguish coprolites of artiodactyls collected from archaeological sites of Patagonia, Argentina. A reference collection of modern droppings of large size artiodactyls of Patagonia, Lama guanicoe (guanaco) and ...
- DOI:
- 10.1016/j.quaint.2013.12.055
-
http://dx.doi.org/10.1016/j.quaint.2013.12.055
- Author:
- Esper Angillieri, M. Yanina; Perucca, Laura P.; Rothis, Martín; Tapia, Carla; Vargas, Nicolás
- Source:
- Quaternary international 2014 v.352 pp. 92-99
- ISSN:
- 1040-6182
- Subject:
- Paleozoic era; earthquakes; geophysics; landslides; models; morphometry; mountains; remote sensing; rockfalls; topography; translation (genetics); Argentina
- Abstract:
- ... The distribution of late Pleistocene to Holocene rockslides in the western flank of the eastern mountain ranges of Central Precordillera (30° 40′–31° S), has been analyzed to determine the triggering mechanisms. The mode of failure was determined to be translational sliding. This paper presents the results of research on one of the Holocene rockslides located in the western flank of Sierra de La D ...
- DOI:
- 10.1016/j.quaint.2014.04.058
-
http://dx.doi.org/10.1016/j.quaint.2014.04.058
- Author:
- Emslie, S.D.; Polito, M.J.; Brasso, R.; Patterson, W.P.; Sun, L.
- Source:
- Quaternary international 2014 v.352 pp. 4-15
- ISSN:
- 1040-6182
- Subject:
- DNA; Pygoscelis adeliae; animal manures; bones; breeding; carbon; climate change; coasts; cold zones; ecosystems; egg membranes; egg shell; feathers; fish; krill; mercury; nitrogen; ornithogenic soils; otoliths; oxygen; paleoecology; penguins; seals; squid; stable isotopes; water temperature; whales; Antarctica
- Abstract:
- ... Ornithogenic or bird-formed soils have accumulated in many coastal regions around Antarctica as a result of breeding activities by pygoscelid penguins, especially the Adélie penguin (Pygoscelis adeliae). These soils are often deep, range from hundreds to thousands of years old, and contain a natural archive of penguin tissues and those of their prey. In some regions, these tissues are extremely we ...
- DOI:
- 10.1016/j.quaint.2014.07.031
-
http://dx.doi.org/10.1016/j.quaint.2014.07.031
- Author:
- Cano, Nilo F.; Munita, Casimiro S.; Watanabe, Shigueo; Barbosa, Renata F.; Chubaci, José F.D.; Tatumi, Sonia H.; Neves, Eduardo G.
- Source:
- Quaternary international 2014 v.352 pp. 176-180
- ISSN:
- 1040-6182
- Subject:
- X-ray diffraction; ceramics; electron paramagnetic resonance spectroscopy; microscopy; quartz; thermoluminescence; Brazil
- Abstract:
- ... Pottery fragments from the Hatahara archaeological site, Amazon Valley, have been dated by thermoluminescence (TL), optically stimulated luminescence (OSL) and electron paramagnetic resonance (EPR) techniques. X-ray diffraction measurements and optical microscopic observation revealed crystalline quartz grains and amorphous grains in the ceramics. These grains are in the form of needles and are sp ...
- DOI:
- 10.1016/j.quaint.2013.05.042
-
http://dx.doi.org/10.1016/j.quaint.2013.05.042
- Author:
- Saporiti, Fabiana; Bala, Luis O.; Otero, Julieta Gómez; Crespo, Enrique A.; Piana, Ernesto L.; Aguilar, Alex; Cardona, Luis
- Source:
- Quaternary international 2014 v.352 pp. 85-91
- ISSN:
- 1040-6182
- Subject:
- Otariidae; coasts; nitrogen; primary productivity; seals; shell (molluscs); stable isotopes; Argentina
- Abstract:
- ... After centuries of pinniped exploitation, hunter-gatherers from the Atlantic coast of southern South America shifted in several occasions to other animal resources during the second half of the Holocene. The shift has been justified by the overexploitation of pinniped populations although changes in marine primary productivity may be an alternative explanation. This is a critical point, as current ...
- DOI:
- 10.1016/j.quaint.2014.05.015
-
http://dx.doi.org/10.1016/j.quaint.2014.05.015
- Author:
- Beltrame, M.O.; Fugassa, M.H.; Sauthier, D.E. Udrizar; Sardella, N.H.
- Source:
- Quaternary international 2014 v.352 pp. 59-63
- ISSN:
- 1040-6182
- Subject:
- Anoplocephalidae; Oxyuridae; eggs; feces; light microscopes; morphs; rodents; Argentina
- Abstract:
- ... Results of paleoparasitological examination of rodent coprolites from faeces were collected from excavations at the paleontological site “Los Altares Profile”, Chubut Province, Patagonia, Argentina, are presented. Each coprolite was processed, rehydrated, homogenized, processed by spontaneous sedimentation, and examined using a light microscope. Coprolites and eggs were described, measured, and ph ...
- DOI:
- 10.1016/j.quaint.2014.06.002
-
http://dx.doi.org/10.1016/j.quaint.2014.06.002
- Author:
- de Melo França, Lucas; Fortier, Daniel Costa; Bocchiglieri, Adriana; Trindade Dantas, Mário André; Liparini, Alexandre; Cherkinsky, Alexander; de Souza Ribeiro, Adauto
- Source:
- Quaternary international 2014 v.352 pp. 159-163
- ISSN:
- 1040-6182
- Subject:
- Caiman latirostris; Crocodylus niloticus; birds; body temperature; carbon; cold zones; fish; fossils; insects; oxygen; paleoecology; radiocarbon dating; reptiles; rivers; shrimp; snails; stable isotopes; Brazil
- Abstract:
- ... Caiman latirostris is a crocodilian reptile widely distributed in South America. The fossil records for this species are limited in the continent and radiocarbon dating, plus isotope analysis, has not been performed to the existing records, which prevent accurate paleoecological reconstructions. Thus, the present study aimed to record the occurrence of a fossil of C. latirostris in Sergipe state, ...
- DOI:
- 10.1016/j.quaint.2014.06.046
-
http://dx.doi.org/10.1016/j.quaint.2014.06.046
- Author:
- Beltrame, María Ornela; Vieira de Souza, Mônica; Araújo, Adauto; Sardella, Norma Haydeé
- Source:
- Quaternary international 2014 v.352 pp. 68-74
- ISSN:
- 1040-6182
- Subject:
- Rodentia; biodiversity; biologists; hosts; parasites; rodents; South America
- Abstract:
- ... Rodents (Mammalia, Rodentia) are a key mammalian group with a worldwide distribution. The relevance of rodents as hosts in parasitic life-cycles, also in those of zoonotic impact, has been fully recognized. Parasites have been found in ancient remains throughout the world. Paleoparasitology is the study of ancient parasites recovered from archaeological and paleontological sites and materials. Thi ...
- DOI:
- 10.1016/j.quaint.2014.09.006
-
http://dx.doi.org/10.1016/j.quaint.2014.09.006
- Author:
- Boretto, G.M.; Baranzelli, M.C.; Gordillo, S.; Consoloni, I.; Zanchetta, G.; Morán, G.
- Source:
- Quaternary international 2014 v.352 pp. 48-58
- ISSN:
- 1040-6182
- Subject:
- Veneridae; clams; environmental factors; fossils; hydrology; morphometry; phenotypic plasticity; Argentina
- Abstract:
- ... This study analyses the shell morphological variations in the venerid clam Ameghinomya antiqua recovered from Bustamante Bay, in Patagonia Argentina, from the Pleistocene (MIS 7–MIS 5) to the present. Fossil and modern A. antiqua shells were analyzed using the Elliptic Fourier Analysis (EFA) and landmark methods. Both methods were successful in separating the studied bivalves into four chronologic ...
- DOI:
- 10.1016/j.quaint.2014.09.033
-
http://dx.doi.org/10.1016/j.quaint.2014.09.033
- Author:
- Rashid, Harunur; Piper, David J.W.; Mansfield, Charlotte; Saint-Ange, Francky; Polyak, Leonid
- Source:
- Quaternary international 2014 v.352 pp. 212-221
- ISSN:
- 1040-6182
- Subject:
- Holocene epoch; carbon; drainage; freshwater; lakes; mixing; oxygen; radiocarbon dating; sediments; snowmelt; stable isotopes; Newfoundland and Labrador; Northwest Atlantic
- Abstract:
- ... One of the least known catastrophic meltwater and sediment-release events of the Laurentide ice-sheet during the early Holocene is the so-called Gold Cove proglacial lake outbursts, a drainage event through the Hudson Strait. This event may have disturbed circulation in the Labrador Sea by releasing freshwater. Here, we report data from four sediment cores and re-analysis of six published records ...
- DOI:
- 10.1016/j.quaint.2014.06.063
-
http://dx.doi.org/10.1016/j.quaint.2014.06.063
- Author:
- Guimarães, José Tasso Felix; Souza-Filho, Pedro Walfir Martins; Alves, Ronnie; de Souza, Everaldo Barreiros; da Costa, Francisco Ribeiro; Reis, Luiza Santos; Sahoo, Prafulla Kumar; de Oliveira Manes, Carmem-Lara; Silva Júnior, Renato Oliveira; Oti, Douglas; Dall'Agnol, Roberto
- Source:
- Quaternary international 2014 v.352 pp. 181-196
- ISSN:
- 1040-6182
- Subject:
- algae; basins; climatic factors; ecosystems; edaphic factors; ferns and fern allies; lakes; paleoclimatology; palynology; phenology; plateaus; pollen; pollen rain; savannas; sediments; spores; tropical forests; watersheds; wind; Amazonia
- Abstract:
- ... In the past two decades, several paleobotanical studies on lakes have indicated a drier climatic condition in Amazonia during the Last Glacial Maximum (LGM) and early-mid Holocene, which likely resulted in the contraction of the tropical forest and expansion of savanna. However, these investigations in the eastern Amazon are scarce, and the reliability and precision of the inference remains largel ...
- DOI:
- 10.1016/j.quaint.2014.06.004
-
http://dx.doi.org/10.1016/j.quaint.2014.06.004
- Author:
- Li, Chuanjin; Qin, Xiang; Ding, Minghu; Guo, Rui; Xiao, Cunde; Hou, Shugui; Bian, Lingen; Qin, Dahe; Ren, Jiawen
- Source:
- Quaternary international 2014 v.352 pp. 16-25
- ISSN:
- 1040-6182
- Subject:
- basins; chlorides; coasts; correlation; ice; ions; magnesium; seasonal variation; snow; sodium; spring; sulfates; sulfur; summer; winter; Antarctica; Indian Ocean
- Abstract:
- ... Snow pit (and a firn core) samples obtained from coastal areas in the eastern Lambert basin of eastern Antarctica enabled us to investigate the temporal variations in soluble marine ion concentrations and the possible mechanisms influencing their variations. The concentrations of seasonal sea salt ions (Na⁺, Cl⁻ and Mg²⁺) at the coastal site (LH406) were maximal in the spring and minimal in the su ...
- DOI:
- 10.1016/j.quaint.2014.03.016
-
http://dx.doi.org/10.1016/j.quaint.2014.03.016