Results 51 to 60 of about 15,148 (249)

Paleoclimate Variations Spanning the Past 29–4 Ma Inferred From Lipid Biomarkers and Carbon Isotopes in the Linxia Basin, Northeast Tibetan Plateau

open access: yesFrontiers in Earth Science, 2022
Thick and continuous deposits in the Linxia Basin, located in the landing area of westerlies and monsoons, offer a good opportunity for understanding the climatic evolution and tectonic activities.
Gen Wang   +12 more
doaj   +1 more source

The use of paleoclimate simulations to refine the environmental and chronological context of archaeological/paleontological sites [title of preprint] [PDF]

open access: yes, 2022
This study illustrates the strong potential of combining paleoenvironmental reconstructions and paleoclimate modeling to refine the paleoenvironmental and chronological context of archaeologicaland paleontological sites.
Stoetzel, E.   +5 more
core   +1 more source

“Cold Tropics”: Permafrost Existence and Thickness on Eastern Nevado Coropuna (Southern Peruvian Andes) Revealed by Ground‐Penetrating Radar and Geoelectrical Soundings

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT The existence of permafrost was explored at tropical latitude on Nevado Coropuna (southern Peruvian Andes) using a combination of ground‐penetrating radar (GPR) and vertical electrical sounding (VES) in order to strengthen the mutual validation of data processing and interpretation.
Velnia Chacca   +6 more
wiley   +1 more source

Calcium Nodules as a Proxy for Quaternary Paleoclimate Change on China's Loess Plateau. [PDF]

open access: yesPLoS ONE, 2015
Different proxies have been used to investigate Quaternary paleoclimate change. Here, we used weathering of calcium nodules in paleosols on China's Loess Plateau as a proxy for Quaternary paleoclimate changes to provide an alternative indicator of these ...
Wenming He, Hongming He, Mingyong Zhu
doaj   +1 more source

Using dendroclimatic analysis of exotic deciduous conifers in an arboretum to document tree growth in response to climate change, Northeast Ohio, USA

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Rising temperatures and wetter conditions in the Midcontinent of North America are influencing climate responses in trees. Dendroclimatological analyses of four exotic deciduous conifer species from Secrest Arboretum, Northeast Ohio help identify past, present and future climate‐tree interactions.
Gregory Wiles   +6 more
wiley   +1 more source

Dynamical structure in paleoclimate data [PDF]

open access: yes, 1994
Deterministic chaos in dynamical systems offers a new paradigm for understanding irregular fluctuations. The theory of chaotic dynamical systems includes methods that can test whether any given set of time series data, such as paleoclimate proxy data ...
Stewart, H. B., Stewart, H. Bruce
core  

Uncertainties of soil organic carbon stock estimation caused by paleoclimate and human footprint on the Qinghai Plateau

open access: yesCarbon Balance and Management, 2022
Background Quantifying the stock of soil organic carbon (SOC) and evaluating its potential impact factors is important to evaluating global climate change.
Xia Liu   +8 more
doaj   +1 more source

Paleoclimate archives from Southern Portugal: An overview

open access: yes, 2019
: Paleoclimate events, either short or long in time, can be recorded in a variety of archives along the geologic timescale, several of which are present in Southern Portugal where the geologic history spans almost the last 400 Ma.
Fernandes, Paulo (8360142)   +11 more
core   +1 more source

Waves of range dynamics and gene flow characterize the biogeographic history of Litsea elongata, a dominant tree in East Asian evergreen broadleaved forests

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Evergreen broadleaved forests (EBLFs) represent an iconic vegetation type in subtropical montane East Asia, but they are experiencing intensifying anthropogenic pressure and increasing habitat fragmentation. Here, using a dominant and widespread tree species characteristic of East Asian EBLFs, we examine its phylogeographic history and evaluate what it
Sheng‐Yuan Qin   +7 more
wiley   +1 more source

Laterites and paleoclimates. [PDF]

open access: yesChemical Geology, 2000
The European Union of Geosciences held its 9th biannual meeting in Strasbourg, March 23–27, 1997. During this meeting, Symposium No. 63, Weathering Processes: Mineral deposits and soil formation in tropical enIironments, was merged with Symposium No. 78, Anthropogenic Impact on Weathering processesco-sponsored by IGCP Project 405.
Jean-Luc Probst   +2 more
openaire   +1 more source

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