Results 41 to 50 of about 11,926 (218)

Quaternary chronostratigraphy and the establishment of related standards

Episodes, 2002
n ...
ABBATE, ERNESTO, CASSINIS G, CASTRADORI D, CATALANO R, CITA MB, CONTI MA, CRESTA S, GAETANI M, PAMPALONI L, OROMBELLI G, PAROTTO M, PAVIA G, SILVA IP, RIO D, SIMONE L, SPROVIERI R, VAI GB   +16 more
openaire   +7 more sources

Long‐term hydrologic connectivity on the Australian dryland margins: Evidence from the Willandra Lakes World Heritage Area over the last 60 ky

Journal of Quaternary Science, EarlyView.
ABSTRACT The semi‐arid Australian continental inland is increasingly subject to climatic extremes such as drought and flooding. Combined with the exceptionally low topographic relief characteristic of this region, hydroclimatic extremes can have an enormous impact on the land surface.
Kathryn E. Fitzsimmons, Markus L. Fischer, Tegan Smith, Tobias Lauer, Maike Nowatzki, Kanchan Mishra, Colin V. Murray‐Wallace   +6 more
wiley   +1 more source

Assessing Thermal Maturity of the Pendência Formation (Potiguar Basin) Using Vitrinite Reflectance and Raman Spectroscopy

Journal of Raman Spectroscopy, EarlyView.
Palynofacies assemblages from the onshore Potiguar Basin display a wide thermal maturity range, with vitrinite reflectance (%Ro) values of 0.46–2.72 measured from nine samples at depths of 1059–4443 m. A strong correlation exists between %Ro and Raman parameters, specifically the G‐band's full width at half maximum.
Gabriel A. Barberes, Dalva A. L. Almeida, Flávia C. Marques, Julliana F. Alves, Paulo H. M. Toledo, Rafael de Oliveira, Lenize F. Maia, Linus Pauling F. Peixoto, Antonio Carlos Sant'Ana, Celly M. S. Izumi, Gustavo F. S. Andrade, Dorval C. Dias Filho, Taissa R. Menezes, Delano M. Ibanez, Luiz Fernando C. de Oliveira   +14 more
wiley   +1 more source

The relevance of lithostratigraphy in the assessment and investigation of engineering ground conditions in UK mudstones = la pertinence du lithostratigraphy dans l'evaluation et la recherche sur les conditions au sol de technologie en argilite UK [PDF]

, 2011
Stratigraphy is the study of layered rock sequences, particularly in terms of their age and correlation with equivalent rocks elsewhere. It has many different branches of which some of the most fundamental are lithostratigraphy, concerning the ...
Culshaw, M.G., Entwisle, D.C., Hobbs, P.R.N., Northmore, K.J., Reeves, H.J.   +4 more
core  

Complex past ice flow from Norway to the North Sea Plateau during the Quaternary: evidence from Marstein Trough and earlier reconstructions using 3D seismic data sets

Boreas, EarlyView.
We have mapped a 60 km long, 30 km wide, 120 m deep buried glacially eroded trough on the North Sea Plateau, west of the Norwegian Channel (59°N, 3°E). The trough was carved out by an ice stream that flowed out from western Norway and crossed the Norwegian Channel in a southwestern direction during the penultimate or Saalian glaciation.
Dag Ottesen, James D. Kirkham, Julian A. Dowdeswell, Harald Brunstad, Morten Halvorsen   +4 more
wiley   +1 more source

Petroleum geology of the Upper Jurassic – Lower Cretaceous of East and North-East Greenland: Blokelv-1 borehole, Jameson Land Basin: Biostratigraphy of the Hareelv Formation (Upper Jurassic) in the Blokelv-1 core, Jameson Land, central East Greenland [PDF]

Geological Survey of Denmark and Greenland Bulletin, 2018
The Hareelv Formation in the Blokelv-1 core is biostratigraphically subdivided by means of ammonite and dinoflagellate cyst stratigraphy. The succession ranges from the Oxfordian C. densiplicatum Chronozone to the Volgian P. elegans Chronozone.
Peter Alsen, Stefan Piasecki
doaj  

Siğilmāsa : approche typo-technologique du bâti, processus de formation du site et gestion des matières premières

Mélanges de la Casa de Velázquez, 2017
This article presents some findings from the French-Moroccan archaeological mission to Siğilmāsa. Given the poor preservation and visibility of the archaeological remains, which makes their interpretation particularly difficult, we first proposed a ...
Romain Mensan, François-Xavier Fauvelle, Elarbi Erbati, Laurent Bruxelles   +3 more
doaj   +1 more source

Vorwort/Preface [PDF]

Eiszeitalter und Gegenwart, 2007
In this volume, the Quaternary Subcommission of the German Stratigraphic Commission presents a description of the major stratotypes and stratigraphical terms for the Quaternary in Germany, focusing on climatostratigraphical terms that relate to cold and ...
T. Litt
doaj   +1 more source

Past aridity and dust drove biodiversity crises and altered pollination in the ancient gymnosperm Ephedra (Gnetales)

Biological Reviews, EarlyView.
ABSTRACT The long‐term effects of present‐day climate change on pollination are unquantified. However, distinguishing climatic drivers of ancient changes in pollination could provide valuable insights into biotic responses to near‐future climate states.
Natasha Barbolini, Niels Meijer, Carina Hoorn, Guillaume Dupont‐Nivet, Fang Han, Ashley Krüger, Qin Yuan, Alexander Rohrmann, Kristina Bolinder, Catarina Rydin   +9 more
wiley   +1 more source

The chronostratigraphy of the Haua Fteah cave (Cyrenaica, northeast Libya) [PDF]

Journal of Human Evolution, 2014
The 1950s excavations by Charles McBurney in the Haua Fteah, a large karstic cave on the coast of northeast Libya, revealed a deep sequence of human occupation. Most subsequent research on North African prehistory refers to his discoveries and interpretations, but the chronology of its archaeological and geological sequences has been based on very ...
Graeme Barker, Evan Hill, Sabine Wulf, Christine Lane, Richard G. Roberts, Lucy Farr, Maxine Aubert, Victoria L. Cullen, Rainer Grün, Katerina Douka, Leslie Kinsley, Chris Hunt, Tim Reynolds, Emma L. Tomlinson, Emma L. Tomlinson, Paul G. Albert, Zenobia Jacobs, Robyn Helen Inglis   +17 more
openaire   +7 more sources