Results 1 to 10 of about 20,902 (254)
Weichselian–Holocene glacial history of the Sjuøyane archipelago, northern Svalbard
To reconstruct the glacial history of Sjuøyane, we describe coastal sedimentary sections in Quaternary sediments and constrain their chronology by radiocarbon and optically stimulated luminescence ages. The sedimentary sections largely consist of shallow (glacio‐)marine and/or littoral sediments deposited during high relative sea levels.
Anders Schomacker+9 more
wiley +1 more source
Relative sea‐level trends in southern Norway during the last millennium
Relative sea level in southern Norway has been falling since c. 7000 cal. yr BP, but modern tide gauge data show rising relative sea level since at least 1960 CE. In this study, peat cores from a shallow coastal basin were analysed, using a multiproxy approach, to reconstruct relative sea level trends over the last millennium and to identify the onset ...
Max Holthuis+10 more
wiley +1 more source
The archaeological sediment sequences analysis from the Wanbei site reveals a predominantly warm and humid climate with a brief cooling phase between 5600 and 5400 a BP, during the Middle Holocene in the middle and lower Huai River valley. Despite the cooling trend, rice remained the dominant crop in mixed farming, while the proportion of millet ...
Weixin Tian+9 more
wiley +1 more source
Divergent views debated over the past 20 years on the Wolstonian depositional record of Fenland and the Peterborough area have centred on whether there is evidence of a single (middle or late) glaciation or of both a middle and a late glaciation. A recent review promoted a single late Wolstonian glaciation, despite there being incontrovertible evidence
Harry E. Langford
wiley +1 more source
Evolution in Foraminifera [PDF]
Evolutionary Trends in Foraminifera Edited by G. H. B. Von Koenigswald, J. D. Emeis, W. L. Buning, and C. W. Wagner. (A collection of papers dedicated to I. M. Van der Vlerk on the occasion of his 70th Birthday.) Pp. viii + 355. (Amsterdam and London: Elsevier Publishing Company, 1963.) 45 D.fl.; 90s.; 50 D.M.
openaire +1 more source
ABSTRACT The long‐term effects of present‐day climate change on pollination are unquantified. However, distinguishing climatic drivers of ancient changes in pollination could provide valuable insights into biotic responses to near‐future climate states.
Natasha Barbolini+9 more
wiley +1 more source
Between the Poles: Rethinking Global Patterns in Sea Anemone Biodiversity
ABSTRACT Aim To assess global sampling coverage of sea anemones and global species richness across four different spatial resolutions, and analyse these along latitudinal gradients to investigate true bimodality and the extent to which these patterns have been influenced by uneven sampling efforts. Location The study encompasses a global scale.
Charlotte Benedict+3 more
wiley +1 more source
Investigation of sedimentary rocks and grains in the round: Micron‐scale SEM‐BEX 360° and 3D imaging
Abstract The aim of the current paper is to demonstrate the use of a novel prototype horizontal rotation stage, within a scanning electron microscope (SEM). Here we utilise sedimentary rock chips and grains, with images collected every 10 ° of rotation, to produce a continuous overlapping field of view 360° montage.
Jim Buckman
wiley +1 more source
Abstract This study offers new insights into the internal architecture of shallow marine carbonate sediments deposited in an epeiric sea formed on a broadly flooded passive margin continental shelf. The Ullayah Member of the Late Jurassic Hanifa Formation is exposed along the Tuwaiq Mountain Escarpment in Central Saudi Arabia and serves as an example ...
Pankaj Khanna+5 more
wiley +1 more source