Results 21 to 30 of about 23,480 (273)

Ascertaining the nature and timing of mire degradation : using palaeoecology to assist future conservation management in Northern England [PDF]

open access: yes, 2017
This study was initiated under contract VT0419 from English Nature (Natural England) to CECQR. In 2015, additional funding was provided by the Yorkshire Peat Partnership, for 210Pb dating, to refine age–depth estimates.
Alistair Crowle   +9 more
core   +3 more sources

Neotectonic Subsidence Along the Cenozoic Kunlun Fault (Tibetan Plateau)

open access: yesGeophysical Research Letters, 2021
Many lake basins on the Tibetan Plateau are affected by tectonic activity. It is therefore important to consider seismotectonic influence on lake evolution when discussing climate impact on hydrology and sediment budgets.
Dada Yan   +5 more
doaj   +1 more source

Paleomagnetic-Geodynamic Mapping of the Transition Zone from Ocean to the Continent: A Review

open access: yesApplied Sciences, 2022
The easternmost Mediterranean is a distinct transition zone from the ocean to the continent located at the junction between the largest Earth’s lithospheric segments: Eurasian and African. The methodology of paleomagnetic mapping of such transition zones
Lev V. Eppelbaum, Youri I. Katz
doaj   +1 more source

210Pb- 226Ra chronology reveals rapid growth rate of Madrepora oculata and Lophelia pertusa on world's largest cold-water coral reef [PDF]

open access: yes, 2012
Here we show the use of the 210Pb- 226Ra excess method to determine the growth rate of two corals from the world's largest known cold-water coral reef, Røst Reef, north of the Arctic circle off Norway.
Bordier, L   +7 more
core   +5 more sources

The Early and Middle Neolithic in NW Russia: radiocarbon chronologies from the Sukhona and Onega regions

open access: yesDocumenta Praehistorica, 2017
The onset of the Neolithic period in the Russian North is defined by the emergence of pottery vessels in the archaeological record. The ceramics produced by mobile hunter-gatherer-fisher groups in the north-eastern European forest zone are among the ...
Henny Piezonka   +5 more
doaj   +1 more source

Reconstructing Bioinvasion Dynamics Through Micropaleontologic Analysis Highlights the Role of Temperature Change as a Driver of Alien Foraminifera Invasion

open access: yesFrontiers in Marine Science, 2021
Invasive alien species threaten biodiversity and ecosystem structure and functioning, but incomplete assessments of their origins and temporal trends impair our ability to understand the relative importance of different factors driving invasion success ...
Roberta Guastella   +8 more
doaj   +1 more source

The Magnetostratigraphy and the Age of So’a Basin Fossil-Bearing Sequence, Flores, Indonesia

open access: yesIndonesian Journal on Geoscience, 2018
DOI: 10.17014/ijog.5.3.221-234Three fossil-bearing intervals have been recognized in the Pleistocene So’a Basin, with the upper one holding important evidence of hominin fossils.
Dida Yurnaldi   +2 more
doaj   +1 more source

Late Miocene climate cooling and intensification of southeast Asian winter monsoon

open access: yesNature Communications, 2018
The late Miocene period allows investigation of climate-carbon cycle dynamics on a warmer-than-modern Earth. Here, the authors show that changes in the global carbon cycle drove climate cooling, culminating in ephemeral Northern Hemisphere glaciations ...
Ann E. Holbourn   +6 more
doaj   +1 more source

Estimation of sedimentary proxy records together with associated uncertainty [PDF]

open access: yesNonlinear Processes in Geophysics, 2014
Sedimentary proxy records constitute a significant portion of the recorded evidence that allows us to investigate paleoclimatic conditions and variability. However, uncertainties in the dating of proxy archives limit our ability to fix the timing of past
B. Goswami   +6 more
doaj   +1 more source

Beginsels en metodes vir die bepaling van die ouderdom van hominied fossiele en hulle vindplekke

open access: yesKoers : Bulletin for Christian Scholarship, 2006
Principles and methods used for the determination of the age of hominid fossils and their discovery sites Paleoanthropologists have an array of physical dating methods developed by researchers in the physical sciences.
W.J. van Aardt
doaj   +1 more source

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