Results 101 to 110 of about 17,704 (249)

A high-altitude peatland record of environmental changes in the NW Argentine Andes (24 ° S) over the last 2100 years [PDF]

, 2016
High-altitude cushion peatlands are versatile archives for high-resolution palaeoenvironmental studies, due to their high accumulation rates, range of proxies, and sensitivity to climatic and/or human-induced changes. Especially within the Central Andes,
Hense, Jonathan, Kock, Sebastian T., Kulemeyer, Julio José, Lupo, Liliana Concepcion, Lücke, Andreas, Ohlendorf, Christian, Schittek, Karsten, Schäbitz, Frank   +7 more
core   +3 more sources

The occurrence of Dickinsonia in non-marine facies

Estudios Geologicos, 2019
Dickinsonia in the central Urals occurs in a succession transitional from marginal marine to non-marine. Even within this sequence Dickinsonia appears to be restricted to the least marine facies interpreted as a coastal lagoon surrounded by tidal flats ...
N. I. Bobkov, A. V. Kolesnikov, A. V. Maslov, D. V. Grazhdankin   +3 more
doaj   +1 more source

Sedimentary macrofossil records reveal ecological change in English lakes: implications for conservation [PDF]

, 2017
Aquatic macrophytes play a key role in providing habitat, refuge and food for a range of biota in shallow lakes. However, many shallow lakes have experienced declines in macrophyte vegetation in recent decades, principally due to eutrophication.
Bennion, H, Burgesss, A, Clarke, G, Clarke, S, Davidson, TA, Goldsmith, B, Rawcliffe, R, Rose, N, Sayer, C, Turner, S, Wiik, E   +10 more
core   +1 more source

Quantitative data on plant macrofossil distribution in the holocene sediment cores of mires in the Kaliningrad region, Russian Federation (South-Eastern Baltic)

Data in Brief, 2019
The data file presents information on the quantitative taxa distribution for plant macrofossils in the Holocene sediment cores of mires in the Kaliningrad region (Russian Federation, South-Eastern Baltic Region), as well as 24 radiocarbon dates (14C ...
Maxim Napreenko, Tatiana Napreenko-Dorokhova   +1 more
doaj   +1 more source

North Atlantic marine ¹⁴C reservoir effects: implications for late-Holocene chronological studies [PDF]

, 2009
We investigated surface ocean–atmosphere 14C offsets for the later Holocene at eight locations in the eastern North Atlantic. This resulted in 11 new ΔR assessments for the west coast of Ireland, the Outer Hebrides, the north coast of the Scottish ...
A.J. Dugmore, Aitken, Ascough, Ascough, Ascough, Ascough, Ascough, Ashmore, Austin, Barrett, Broecker, Bronk Ramsey, Bronk Ramsey, Campin, Church, Culleton, Dugmore, Dye, Eiríksson, Eiríksson, Forman, G.T. Cook, Grove, Harkness, Heier-Neilsen, Hughen, Jiang, Jones, Knight, Kovanen, Lamb, Mangerud, McGovern, McKay, Mook, P.L. Ascough, Paull, Reimer, Reimer, Siani, Siani, Slota, Southon, Spiker, Stuiver, Stuiver, Stuiver, Ulm, Vandeputte, Waelbroeck, Ward, Yoneda   +51 more
core   +1 more source

Quantitative Late Quaternary Climate Reconstruction from Plant Macrofossil Communities in Western North America

Open Quaternary, 2018
The Late Quaternary packrat ('Neotoma spp'.) midden plant macrofossil record in western North America is an exceptional record of biotic change that provides strong evidence of past climate.
Robert S. Harbert, Kevin C. Nixon
doaj   +1 more source

Palaeoecological and possible evolutionary effects of early Namurian (Serpukhovian, Carboniferous) glacioeustatic cyclicity [PDF]

, 2008
Early Namurian (Serpukhovian, Carboniferous), sedimentary cycles in the Throckley and Rowlands Gill boreholes, near Newcastle upon Tyne, UK, consist of fossiliferous limestones overlain by (usually unfossiliferous) black mudstone, followed by sandstones ...
Leng, Melanie, Millward, David, Stephenson, Michael, Vane, Christopher   +3 more
core   +1 more source

Paleoenvironments of a regressive Devonian section from Paraná Basin (Mato Grosso do Sul state) by integration of ichnologic, taphonomic and sedimentologic analyses

Brazilian Journal of Geology
: Studies that integrate ichnologic, taphonomic and sedimentologic data result in more accurate paleoenvironmental inferences than isolated approaches.
Daniel Sedorko, Elvio Pinto Bosetti, Renato Pinani Ghilardi, Lucinei José Myszynski Júnior, Rafael Costa Silva, Sandro Marcelo Scheffler   +5 more
doaj   +1 more source

Hazelnuts from a peat deposit at Evijärvi, western Finland [PDF]

Bulletin of the Geological Society of Finland, 1991
B. Eriksson, M. Aalto, T. Kankainen
doaj   +1 more source

Arlenea delicata gen. et sp. nov., a new ephedroid plant from the Early Cretaceous Crato Formation, Araripe Basin, Northeast Brazil

Plant Diversity
Ephedroid macrofossils have been widely documented in Cretaceous deposits, including numerous from the Lower Cretaceous Yixian Formation of NE China. However, few ephedroid macrofossils have been reported from South America.
Alita Maria Neves Ribeiro, Yong Yang, Antônio Álamo Feitosa Saraiva, Renan Alfredo Machado Bantim, João Tavares Calixto Junior, Flaviana Jorge de Lima   +5 more
doaj   +1 more source