Results 61 to 70 of about 4,175,231 (214)

Mid to late Holocene storminess and fire history on the Baltic coast of Latvia

open access: yesFrontiers in Ecology and Evolution
Coastal peatlands are sensitive archives of past environmental change, preserving evidence of both atmospheric and surface disturbances. Here, we reconstruct Mid- to Late Holocene storminess and fire dynamics from a 330-cm peat sequence recovered from ...
Normunds Stivrins   +7 more
doaj   +1 more source

Development of the late glacial Baltic basin and the succession of vegetation cover as revealed at Palaeolake Haljala, northern Estonia [PDF]

open access: yesEstonian Journal of Earth Sciences, 2009
The 4.5 m thick Haljala sequence in North Estonia was studied to provide information on palaeoenvironmental changes between 13 800 and 11 300 cal yr BP.
Saarse, Leili   +5 more
doaj  

Humans and Landscape

open access: yesInternet Archaeology, 2018
Human activity had a significant impact on the landscape of Wales during the Iron Age and into the Romano-British period which is reflected in the palaeoenvironmental record.
Astrid E. Caseldine
doaj   +1 more source

Hydrological conditions of peatland formation based on a dynamic curve of a biogenic sediments sequence – a new proposal

open access: yesJournal of Water and Land Development, 2018
The aim of the study was to propose a so called dynamic curve for identification of hydrological conditions of peatland formation. This method facilitates interpretation of accumulation processes based on sequence of biogenic sediments depending on ...
Lipka Krzysztof, Zając Ewelina
doaj   +1 more source

APORTES DEL ANÁLISIS DE MACROFÓSILES VEGETALES A LA RECONSTRUCCIÓN PALEOAMBIENTAL EN RELACIÓN CON LOS REGISTROS POLÍNICOS DE TURBERAS DEL HOLOCENO, PATAGONIA ARGENTINA

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2018
Resumen. Las reconstrucciones del pasado se tornan más objetivas si se considera el mayor número de indicadores posible. En especial, las reconstrucciones ambientales de los últimos 20.000 años son importantes para el entendimiento de la dinámica de los ...
Marcos E. Echeverria, María V. Mancini
doaj  

Plant Macrofossils from the Takht Coal Mine, Minoodasht and its Dating, Relative abundance and Sørensen index in comparison with the other Florizones in Iran and Eurasia

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2015
Takht mine, SE Minoodasht contains well-preserved plant macrofossils belonging to 27 species allocated to 22 genera of various orders viz., Equisetales, Osmundales, Filicales, Peltaspermales, Bennettitales, Ginkgoales and Coniferales.
Fatemeh Vaez Javadi, Akbar Parvacideh,
doaj  

Ice caves in the Pyrenees

open access: yesMètode Science Studies Journal: Annual Review
Climate change is profoundly affecting mountain areas. While glacier retreat is highly visible, the underground cryosphere, including cave ice deposits, faces less apparent but equally concerning threats.
Maria Leunda   +7 more
doaj   +1 more source

Geomorphological controls on the re-vegetation of erosion gullies in blanket peat: implications for bog restoration [PDF]

open access: yesMires and Peat, 2008
This paper describes the natural re-vegetation of eroded blanket peat gullies in the Dark Peak National Park, Southern Pennines (UK). Sequences derived from the plant macrofossil records of nine peat cores indicate a two-phase process of re-vegetation ...
S.K. Crowe, M.G. Evans, T.E.H.Allott
doaj  

A revised stratigraphy for the Palaeocene Agatdalen flora (Nuussuaq Peninsula, western Greenland): correlating fossiliferous outcrops, macrofossils, and palynological samples from phosphoritic nodules

open access: yesActa Palaeobotanica, 2016
The Cretaceous and Palaeogene floras of western Greenland that were initially described as part of the classical work “Flora fossilis arctica” by Oswald Heer in the 19th century are currently under revision.
Grímsson Friđgeir   +3 more
doaj   +1 more source

Late Pleistocene plant macrofossils from the Thimi Formation (Madhyapur Thimi section) of the Kathmandu Valley, central Nepal

open access: yes, 2010
The Late Pleistocene plant macrofossils from the Thimi Formation of the Kathmandu Valley have been reported in this paper. On the basis of 71 taxa from 39 families, seven plant macrofossil assemblages T-1 to T-7 were described from 18.5 m thick section ...
S. Bhandari, K. Paudayal, A. Momohara
semanticscholar   +1 more source

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