Results 131 to 140 of about 254,715 (432)

Coming to light: How effective are sediment gravity flows in removing fine suspended carbonate from reefs?

The Depositional Record, EarlyView.
This paper presents laboratory experiments that investigated the dynamics of mud‐grade calcite laden gravity flows, with the aim of determining how mobile these calciclastic flows are in comparison to fine‐grained cohesive and non‐cohesive siliciclastic gravity flows.
Jaco H. Baas, William Hewitt, Stephen Lokier, James Hendry   +3 more
wiley   +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

Anatomy of modern sedimentary volcanoes produced by gas‐charged groundwater liquefaction, Lake Powell, Hite, Utah: Implications for the recognition and interpretation of ancient sedimentary volcanoes

The Depositional Record, EarlyView.
Two non‐seismically generated sedimentary volcanoes were excavated on the Colorado River delta in Lake Powell, Utah, USA, in order to characterise the internal structures. Sedimentary volcanoes are commonly employed as tools in palaeoseismic reconstruction, thus it is important to establish criteria to differentiate non‐seismic‐generated sedimentary ...
Michael C. Wizevich, Edward L. Simpson, Abigail Underwood, Laura Sherrod, Kelsey Livingston, Emily Bogner, Margariete Malenda   +6 more
wiley   +1 more source

Climate and biota of the early Paleogene: recent advances and new perspectives

Geologica Acta, 2009
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V. PUJALTE, A. PAYROS AGIRRE, E. APELLANIZ INGUNZA   +2 more
doaj  

Seismic Stratigraphy of the Eastern Equatorial Pacific Ocean: Paleoceanographic Implications [PDF]

, 1995
The collection of Leg 138 well-log and shipboard physical-property data, in conjunction with high-resolution seismic profiles, provides an opportunity to understand the paleoceanographic significance of seismic reflectors and to gain insight into the ...
Bloomer, Stephen F., Mayer, Larry A., Moore, Ted C., Jr   +2 more
core   +2 more sources

Smithian–Spathian carbonate geochemistry in the northern Thaynes Group influenced by multiple styles of diagenesis

The Depositional Record, EarlyView.
While the Smithian–Spathian boundary carbon isotopic excursion has been traditionally interpreted as capturing global carbon cycle behaviour, recent studies have suggested that at least some Early Triassic carbon isotopic excursions may incorporate influences from authigenic or early diagenetic processes.
Jordan P. Todes, Franziska R. Blattmann, Torsten Vennemann, Elke Schneebeli‐Hermann, Hugo Bucher, Dan P. Razionale, Clara L. Blättler   +6 more
wiley   +1 more source

Correlation of the Thanetian-Ilerdian turnover of larger foraminifera and the Paleocene-Eocene thermal maximum: confirming evidence from the Campo area (Pyrenees, Spain)

Geologica Acta, 2009
It has long been known that a major larger foraminifera turnover (LFT) occurred at the boundary between the Thanetian and Ilerdian stages, but its possible correlation with the Paleocene-Eocene thermal maximum (PETM) was unsuspected until the work of ...
V. PUJALTE, B. SCHMITZ, J.I. BACETA CABALLERO, X. ORUE-ECHEBARRÍA, G. BERNAOLA BILBAO, J. DINARÈS-TURELL, A. PAYROS AGIRRE, E. APELLANIZ INGUNZA, F. CABALLERO SANTAMARIA   +8 more
doaj  

Snow stratigraphic heterogeneity within ground-based passive microwave radiometer footprints: implications for emission modeling [PDF]

, 2014
Two-dimensional measurements of snowpack properties (stratigraphic layering, density, grain size and temperature) were used as inputs to the multi-layer Helsinki University of Technology (HUT) microwave emission model at a centimeter-scale horizontal ...
Derksen, Chris, Lemmetyinen, Juha, Montpetit, Benoit, Pulliainen, Jouni, Royer, Alain, Rutter, Nick, Sandells, Melody, Toose, Peter   +7 more
core   +1 more source

Cladistics and Stratigraphy

Geosciences, 2023
Using cladistic phylogenies (cladograms) to evaluate stratigraphy (taxon distributions and correlations) necessitates various assumptions that include all of the assumptions built into the cladogram, assuming the cladogram is “correct” and that new taxa only arise by dichotomous splitting.
openaire   +2 more sources

Evidence for subsidence rate variation in the Newark Basin and its influence on the deposition of fluvial sediments of the Stockton Formation

The Depositional Record, EarlyView.
The Newark Basin has seen renewed interest recently as a potential location for carbon sequestration. This study uses a recently exposed outcrop to investigate the reasons behind varying lithologies and post‐depositional soft‐sediment deformation in the fluvial sandstones of the Stockton Formation. Using field observations and sediment geochemistry, we
Jane L. Alexander, Sean T. Thatcher, Jay Tobon, Victoria Rivelli   +3 more
wiley   +1 more source