Results 31 to 40 of about 3,717 (209)

Elemental Diffusion Chronostratigraphy

, 2021
Time-related information of pre-eruptive magmatic processes is locked in the chemical profile of compositionally zoned minerals and can be retrieved by means of elemental diffusion chronometry. However, only the timescale of the outermost rim is commonly
Mangler, Martin F., Petrone, Chiara Maria, Chiara Maria Petrone, Martin F. Mangler   +3 more
core   +1 more source

The Anthropocene: Comparing Its Meaning in Geology (Chronostratigraphy) with Conceptual Approaches Arising in Other Disciplines

Earth's Future, 2021
The term Anthropocene initially emerged from the Earth System science community in the early 2000s, denoting a concept that the Holocene Epoch has terminated as a consequence of human activities.
Jan Zalasiewicz, Colin N. Waters, Erle C. Ellis, Martin J. Head, Davor Vidas, Will Steffen, Julia Adeney Thomas, Eva Horn, Colin P. Summerhayes, Reinhold Leinfelder, J. R. McNeill, Agnieszka Gałuszka, Mark Williams, Anthony D. Barnosky, Daniel de B. Richter, Philip L. Gibbard, Jaia Syvitski, Catherine Jeandel, Alejandro Cearreta, Andrew B. Cundy, Ian J. Fairchild, Neil L. Rose, Juliana A. Ivar do Sul, William Shotyk, Simon Turner, Michael Wagreich, Jens Zinke   +26 more
doaj   +1 more source

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

Ratification of Neogene subseries as formal units in international chronostratigraphy [PDF]

, 2022
The International Union of Geological Sciences Executive Committee (IUGS EC) voted on 13 October 2021 to ratify a proposal for the Neogene subseries/subepochs to have formal status. They are now incorporated into a sixtiered chronostratigraphic hierarchy
Triantaphyllou, Maria, F. Lirer, W. E. Piller, E. Turco, Flores, José Abel, Lirer, Fabrizio, J. Tian, Turco, Elena, Grunert, Patrick, F. Vallejo, Tian, Jun, Aubry, Marie-Pierre, M-P. Aubry, Piller, Werner E., Robinson, Marci, Aubry, Marie Pierre, Hilgen, Frits, F. Quillévéré, Holbourn, Ann, Krijgsman, Wout, K. G. Miller, A. Holbourn, J. A. Flores Villajero, P. Grunert, M. Triantaphyllou, Raffi, Isabella, A. Gladenkov, Vallejo, Felipe, Piller, Werner, M. Robinson, Gladenkov, Andrey, W. Krijgsman, H. Nishi, L. Rook, F. Hilgen, Miller, Kenneth, Miller, Kenneth G., Rook, Lorenzo, Nishi, Hiroshi, Quillévéré, Frédéric, I. Raffi   +40 more
core   +4 more sources

A Continuous Seismostratigraphic Framework for the Western Svalbard-Barents Sea Margin Over the Last 2.7 Ma: Implications for the Late Cenozoic Glacial History of the Svalbard-Barents Sea Ice Sheet

Frontiers in Earth Science, 2021
Here we present a high-resolution, continuous seismostratigraphic framework that for the first time, connects the over 1,000 km long western Svalbard-Barents Sea margin and covers the last ∼2.7 million years (Ma).
Nikolitsa Alexandropoulou, Monica Winsborrow, Karin Andreassen, Andreia Plaza-Faverola, Pierre-Antoine Dessandier, Pierre-Antoine Dessandier, Rune Mattingsdal, Nicole Baeten, Jochen Knies, Jochen Knies   +9 more
doaj   +1 more source

The chronostratigraphy of protoplanet Vesta [PDF]

Icarus, 2014
In this paper we present a time-stratigraphic scheme and geologic time scale for the protoplanet Vesta, based on global geologic mapping and other analyses of NASA Dawn spacecraft data, complemented by insights gained from laboratory studies of howardite–eucrite–diogenite (HED) meteorites and geophysical modeling.
Williams, D.A., Jaumann, R., McSween, H.Y., Marchi, S., Schmedemann, N., Raymond, C.A., Russell, C.T.   +6 more
openaire   +3 more sources

Long-term landscape evolution of the Molise sector of the central-southern Apennines, Italy

Geologica Carpathica, 2017
This paper concerns the reconstruction of the main stages of the long-term landscape evolution of the Molise portion of the central-southern Apennines along a transect divided into three sectors (SW, Central and NE).
Amato Vincenzo, Aucelli Pietro P.C., Bracone Vito, Cesarano Massimo, Rosskopf Carmen Maria   +4 more
doaj   +1 more source

A Database of Radiocarbon Dates for Palaeoenvironmental Research in Eastern Africa

Open Quaternary, 2016
Radiocarbon dating is one of the most widely available and applied techniques to develop Late Quaternary chronologies of many ecosystems and is, thus, utilized in Quaternary studies, archaeology, hydrology, geomorphology, palaeoanthropology ...
Colin Courtney Mustaphi, Rob Marchant
doaj   +1 more source

Geochronology of the Igetei Multilayered Site (Lower – Upper Paleolithic, Cis-Baikal)

Вестник Новосибирского государственного университета. Серия: история, филология
Purpose. The study consists of results of a detailed geochronological analysis of the multilayered Igetei reference site in the Cis-Baikal region, which make it possible to characterize and clarify the age of the Lower and Middle Paleolithic complexes ...
A. A. Shchetnikov, N. E. Berdnikova
doaj   +1 more source

The Variable Influences of Sea Level, Sedimentation and Exposure on Holocene Reef Development over a Cross-Shelf Transect, Central Great Barrier Reef

Diversity, 2018
Coral reefs globally are impacted by natural and anthropogenic stressors that are compounded by climate change. Understanding past reef responses to natural stressors (cyclones, sea-level change, freshwater inputs, and sedimentation) can provide ...
Emma J. Ryan, Scott G. Smithers, Stephen E. Lewis, Tara R. Clark, Jian-xin Zhao   +4 more
doaj   +1 more source