Results 61 to 70 of about 7,634 (210)

Late Neogene leaf assemblage from Bełchatów Lignite Mine (central Poland)

Acta Palaeobotanica, 2014
Leaf macroremains collected in the Bełchatów Lignite Mine (central Poland) were investigated. The fossil assemblage consists of leaves of Acer, Betula, Carpinus, Dicotylophyllum, Fagus, ?Magnolia, “Parrotia”, Pinus, Quercus, and Zelkova.
Worobiec Grzegorz
doaj   +1 more source

Microbial mats in dinosaur ichnocoenoses

Sedimentology, EarlyView.
ABSTRACT Until now, the significance of microbial mats in preservation of dinosaur tracks and in reconstructing the palaeoenvironment in which dinosaurs roamed was rarely studied. Dinosaur tracks are commonly found close to ancient aquatic bodies where moist sediment had once allowed footstep registration.
Nora Noffke, Paul C. Murphey, Roger C. Buntin, Martin G. Lockley   +3 more
wiley   +1 more source

150,000-year palaeoclimate record from northern Ethiopia supports early, multiple dispersals of modern humans from Africa

Scientific Reports, 2018
Climatic change is widely acknowledged to have played a role in the dispersal of modern humans out of Africa, but the timing is contentious. Genetic evidence links dispersal to climatic change ~60,000 years ago, despite increasing evidence for earlier ...
H. Lamb, C. Bates, C. Bryant, S. Davies, D. Huws, M. Marshall, H. Roberts, H. Toland   +7 more
semanticscholar   +1 more source

Clumped Isotope Temperature Reconstruction Using Stalagmite Drip Cups

Rapid Communications in Mass Spectrometry, Volume 40, Issue 8, 30 April 2026.
ABSTRACT Rationale Application of clumped isotope palaeothermometry to speleothems (carbonate cave deposits, e.g., stalagmites and flowstones) has been restricted largely to subaqueous samples because of kinetic fractionation processes that occur during subaerial speleothem formation, which lead to erroneously high inferred temperatures.
Stuart Umbo, Maria Box, Aviva Intveld, Jack Longman, Sevasti Modestou, Stacy A. Carolin, Daniel H. James, Alfredo Martínez‐García, Carlos Peraza Lope, Mark Brenner, David Hodell, Sebastian F. M. Breitenbach   +11 more
wiley   +1 more source

Coupled stalagmite – Alluvial fan response to the 8.2 ka event and early Holocene palaeoclimate change in Greece

Palaeogeography, Palaeoclimatology, Palaeoecology, 2019
We explore the expression of early Holocene climatic change in the terrestrial Mediterranean of southern Greece. A regional palaeoclimate record from stable isotope and trace element geochemical proxies in an early Holocene (~12.4 ka to 6.7 ka ...
E. Peckover, J. Andrews, M. Leeder, P. Rowe, A. Marca, D. Sahy, Stephen Noble, R. Gawthorpe   +7 more
semanticscholar   +1 more source

Reduced sediment accumulation rate enhances early marine diagenesis of periplatform sediments

The Depositional Record, Volume 12, Issue 2, April 2026.
The influence of reduced sediment accumulation rate on early marine burial diagenesis was investigated in sediments collected by ODP Leg 133. Results show that low sediment accumulation rates can produce substantial and asynchronous shifts in stable carbon isotope ratios across a slope transect without the development of sedimentological indicators of ...
Amanda M. Oehlert, Larry C. Peterson, Dick Kroon, Peter K. Swart   +3 more
wiley   +1 more source

From the Last Glacial Maximum to the Late Holocene: Unraveling the dynamic complexities of climate and human history in Western and Southeastern Iran

Frontiers in Earth Science
Since the early Neolithic (∼10,000 years ago), the Iranian Plateau has witnessed the development of sedentary human settlement facilitated by periods of favorable climatic conditions prompting gradual or sweeping changes.
Alireza Vaezi, Lloyd Weeks, Joyanto Routh   +2 more
doaj   +1 more source

Seeing Through Geomorphic Complexity to Recover Tectonics From Topography: Inverting Landscapes for Uplift Histories Using the Wasserstein Distance

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 4, April 2026.
Abstract An important problem in the Earth sciences is extracting information about tectonic and other processes from topography. A general challenge is that geomorphic activity that we typically have little information about during the lifetime of a landscape can introduce geomorphic “noise”.
M. J. Morris, G. G. Roberts, F. D. Richards, A. G. Lipp, E. R. Siddle   +4 more
wiley   +1 more source

Implications of summer breeding frogs from Langebaanweg, South Africa: Regional climate evolution at 5.1 mya

South African Journal of Science, 2016
No direct palaeoclimatic proxies have been available to indicate the seasonality or amount of rainfall on the west coast of southern Africa during the Early Pliocene.
Thalassa Matthews, G. John Measey, †David L. Roberts   +2 more
doaj   +1 more source

An Arctic Sea Ice Energy Budget for the Last Interglacial

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract With ongoing anthropogenic warming, the Arctic is increasingly dominated by thin, first‐year sea ice. Understanding the ice–ocean–atmosphere interactions in warmer climates is therefore essential. We analyze the Arctic sea‐ice energy budget in nine CMIP6‐PMIP4 lig127k simulations of the Last Interglacial warm Arctic.
M. Pollock, R. Diamond, H. Heorton, L. C. Sime, D. Schroeder, C. Brierley   +5 more
wiley   +1 more source