Results 51 to 60 of about 213,060 (361)

A shallow-water oxygen minimum zone in an oligotrophic Tonian basin

Nature Communications
The Tonian Period (1000–720 Ma) bore witness to the transition from a prokaryote-dominated marine ecosystem to one characterized by the proliferation of eukaryotes.
Yunpeng Sun, Wei Wang, Xianguo Lang, Chengguo Guan, Qing Ouyang, Ke Pang, Guangjin Li, Yongliang Hu, Hongyi Shi, Xianye Zhao, Chuanming Zhou   +10 more
doaj   +1 more source

Cenozoic paleoceanography 1986: An introduction [PDF]

, 1987
New developments in Cenozoic paleoceanography include the application of climate models and atmospheric general circulation models to questions of climate reconstruction, the refinement of conceptual models for interpretation of the carbon isotope record
Arthur, Barren, Benson, Berger, Berger, Berger, Berggren, Berner, Berner, Broecker, Broecker, CLIMAP Project Members, Delmas, Emiliani, Epstein, Fischer, Gates, Haq, Hsu, Keigwin, Keller, Keller, Kennett, L. A. Mayer, Manabe, Mayer, Miller, Moore, Schneider, Scholle, Shackleton, Shackleton, Shackleton, Shackleton, Shackleton, Tappan, Vail, Vail, Vincent, Vincent, Vincent, Vincent, W. H. Berger, Wei, Woodruff   +44 more
core   +2 more sources

Multidisciplinary Approach to Identifying Early Mediaeval Gates: A Case Study of the Břeclav–Pohansko Stronghold

Archaeological Prospection, EarlyView.
ABSTRACT This study presents a comprehensive approach to verifying a presumed western gate at Pohansko by integrating nondestructive geophysical methods (ERT, magnetometry and core prospection) with traditional archaeological excavation. The identification and characterization of gates by nondestructive methods within early mediaeval fortified sites ...
Petr Dresler, Michaela Prišťáková, Peter Milo, František Kuda, Karel Kirchner, Igor Murín, Jan Havelka   +6 more
wiley   +1 more source

Reconstruction of eolian bed forms and paleocurrents from cross-bedded strata at Victoria Crater, Meridiani Planum, Mars [PDF]

, 2011
Outcrop exposures imaged by the Opportunity rover at Victoria Crater, a 750 m diameter crater in Meridiani Planum, are used to delineate sedimentary structures and further develop a dune-interdune depositional model for the region.
Edgar, L. A., Grotzinger, J. P., Hayes, A. G., Sohl-Dickstein, J., Squyres, S. W., Watters, W. A.   +5 more
core   +1 more source

Volcanic stratigraphy: A review

Journal of Volcanology and Geothermal Research, 2018
Peer ...
Marti Joan, Groppelli Gianluca, da Silveira Antonio Brum   +2 more
openaire   +4 more sources

Mapping Ancient Structures and Demonstrating Integrated Archaeological Geophysics at Huacas de Moche, Peru

Archaeological Prospection, EarlyView.
ABSTRACT At the Huacas de Moche (HdM), one of the most prominent archaeological sites in Trujillo, Peru, the needs of an expanding modern community are in direct conflict with the desire to preserve the wealth of archaeological information. The undetermined extent of the HdM site introduces disputes in land usage where potential archaeological features
Jared Low, Richard Krahenbuhl, Jeffrey Shragge, Michele L. Koons, Carlos Rengifo, Alexander Vega   +5 more
wiley   +1 more source

Stratigraphy of the Golden Hoard Town of Madzhar. First Observations

Археология евразийских степей, 2022
The paper presents the first stratigraphic scale for the main Golden Horde center in the North Caucasus - the town of Madzhar. The scale has been developed on the basis of materials obtained during the three field archaeological seasons of 2015–2017 ...
Bocharov Sergei G. , Obukhov Yuri D.
doaj   +1 more source

Stratigraphy and Chronology of Karst Features on Rodriguez Island, Southwestern Indian Ocean [PDF]

, 2015
This publication has been made available with the permission of the National Speleological Society (www.caves.org).
Burney, DA, Burney, LP, Hume, JP, Middleton, GJ, Porch, N, Steel, L   +5 more
core   +1 more source

SARchaeological Prospection: Synthetic Aperture Radar for the Reconstruction and Mapping of Temperate Floodplain Environments

Archaeological Prospection, EarlyView.
ABSTRACT Temperate river floodplains present a significant challenge for archaeologists, as cultural and palaeoenvironmental remains are often difficult to locate but can be exceptionally well preserved, especially where groundwater levels are high. In these alluvial environments, the deposition of thick, fine‐grained sediments has potential to deeply ...
Nicholas Crabb, Chris Carey, Andy J. Howard, Matthew Brolly   +3 more
wiley   +1 more source

The strategic and the stratigraphic: a working paper on the dynamics of organisational evolution. [PDF]

, 2012
Despite large debates over fundamental issues a broadly evolutionary paradigm of organisations is growing in legitimacy. It may though be preferable to replace the metaphor of the organisation as an organism with the literal assertion that both social ...
Price, Ilfryn
core