Results 31 to 40 of about 1,987 (234)

Holocene carbon accumulation in the peatlands of northern Scotland [PDF]

open access: yesMires and Peat, 2018
The response of peatland carbon accumulation to climate can be complex, with internal feedbacks and processes that can dampen or amplify responses to external forcing.
J.L. Ratcliffe   +9 more
doaj   +1 more source

Last interglacial sea-level proxies in the glaciated Northern Hemisphere [PDF]

open access: yesEarth System Science Data, 2022
Because global sea level during the last interglacial (LIG; 130–115 ka) was higher than today, the LIG is a useful approximate analogue for improving predictions of future sea-level rise. Here, we synthesize sea-level proxies for the LIG in the glaciated
A. S. Dalton   +8 more
doaj   +1 more source

Composite development and stratigraphy of the Onepoto maar lake sediment sequence (Auckland Volcanic Field, New Zealand) [PDF]

open access: yesScientific Drilling, 2021
The accurate and precise reconstruction of Quaternary climate as well as the events that punctuate it is an important driver of the study of lake sediment archives.
B. Läuchli   +3 more
doaj   +1 more source

Tephrostratigraphy and tephrochronology of lakes Ohrid and Prespa, Balkans [PDF]

open access: yesBiogeosciences, 2010
Four cores from Balkans lakes Ohrid and Prespa were examined for recognition of tephra layers and cryptotephras, and the results presented along with the review of data from other two already published cores from Lake Ohrid.
R. Sulpizio   +4 more
doaj   +1 more source

Synchronous or Not? The Timing of the Younger Dryas and Greenland Stadial-1 Reviewed Using Tephrochronology

open access: yesQuaternary, 2022
The exact spatial and temporal behaviour of rapid climate shifts during the Last Glacial–Interglacial Transition are still not entirely understood. In order to investigate these events, it is necessary to have detailed palaeoenvironmental reconstructions
Simon A. Larsson   +3 more
doaj   +1 more source

Detection of Tephra Layers in Antarctic Sediment Cores with Hyperspectral Imaging. [PDF]

open access: yesPLoS ONE, 2016
Tephrochronology uses recognizable volcanic ash layers (from airborne pyroclastic deposits, or tephras) in geological strata to set unique time references for paleoenvironmental events across wide geographic areas.
Ismael F Aymerich   +3 more
doaj   +1 more source

Supplemental Material: Tephrochronology of the Miocene Monterey and Modelo Formations, California

open access: yes, 2022
Tephrochronology of the Miocene Monterey and Modelo Formations, California 
et al. (281964)   +3 more
core   +1 more source

Holocene glacier fluctuations and tephrochronology of the Oræfi district, Iceland [PDF]

open access: green, 1999
The aims of this thesis are to refine the tephrochronology of the Öræfi district, SE Iceland and assess the Holocene glacier fluctuations of the Öræfajökull ice cap.
Hjalti Johannes Gudmundsson
openalex   +2 more sources

Peat humification and climate change: a multi-site comparison from mires in south-east Alaska [PDF]

open access: yesMires and Peat, 2008
Peatland records of Holocene palaeoclimate have been widely used in Europe. Their potential in western North America remains largely unexploited despite an abundance of candidate sites.
R.J. Payne, J.J. Blackford
doaj   +2 more sources

Towards a Holocene tephrochronology for the Azores

open access: yes, 2015
The Azores is situated in the North Atlantic Ocean and is one of the most active volcanicregions in the Northern Hemisphere. The volcanic history of the islands is fairly wellknown and several explosive trachytic eruptions have been reported but the geochemicalcompositions of the glass component of the tephra as well as the dispersal oftephras to ...
Johansson, Hans
openaire   +2 more sources

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