scholarly journals Evidence for the intrusion of marine Atlantic waters into the West Siberian Arctic during the Middle Pleistocene

Boreas ◽  
2021 ◽  
Author(s):  
Dmitry V. Nazarov ◽  
Olga A. Nikolskaia ◽  
Anna S. Gladysheva ◽  
Igor V. Zhigmanovskiy ◽  
Maksim V. Ruchkin ◽  
...  
Keyword(s):  
Middle Pleistocene ◽  
The West ◽  
Siberian Arctic

On the issues related to the discoid cores

2017 ◽  
Vol 17 (1) ◽  
pp. 174-178
Author(s):  
Youcheng Chen ◽  
Tongli Qu
Keyword(s):  
Middle Stone Age ◽  
Middle Pleistocene ◽  
Middle Paleolithic ◽  
Stone Age ◽  
The West ◽  
Upper Pleistocene ◽  
Old World ◽  
Insight Into

AbstractThe discoid core and the Levallois core are important symbols of the Middle Paleolithic Age in the west of the Old World. The two types of artifacts show not only technical relationships but also differences. The discoid core can be classified into two sub-types, namely the unifacial and the bifacial classes. In China, discoid cores may have appeared in the upper Middle Pleistocene, and prevailed in the lower and middle Upper Pleistocene, which corresponded to the middle Paleolithic Age in Europe and to the Middle Stone Age in Africa. The discovery and study of discoid cores provide significant insight into the culture of the Middle Paleolithic Age in China.

Late Middle Pleistocene deposits at Norton Farm on the West Sussex coastal plain, southern England

2000 ◽  
Vol 15 (1) ◽  
pp. 61-89 ◽  
Author(s):  
Martin R. Bates ◽  
C. Richard Bates ◽  
Philip L. Gibbard ◽  
Richard I. Macphail ◽  
Frederick J. Owen ◽  
...  
Keyword(s):  
Coastal Plain ◽  
Middle Pleistocene ◽  
The West ◽  
Southern England ◽  
Late Middle Pleistocene

Hominid colonisation and the Lower and Middle Palaeolithic of the West Midlands

2005 ◽  
Vol 71 ◽  
pp. 63-83 ◽  
Author(s):  
A.T.O. Lang ◽  
D.H. Keen
Keyword(s):  
Raw Materials ◽  
Middle Pleistocene ◽  
The West ◽  
Oxygen Isotope Record ◽  
West Midlands ◽  
Early Humans ◽  
Isotope Record ◽  
The University ◽  
Palaeolithic Archaeology ◽  
New Time

The recognition over the last 20 years that the Quaternary deposits of the West Midlands cover a longer period of time than previously envisaged has led to a re-analysis of their contained Palaeolithic archaeology. Stone tools have been found in the region for over a hundred years and cover most periods of hominid colonisation from the time of the earliest occupants of the country over half a million years ago. Twentieth century research in the West Midlands, often led by Professor F. W. Shotton at the University of Birmingham, correlated the Palaeolithic of the region with the Quaternary geological sequence as it was then understood. Shotton identified the ‘Wolstonian’ glaciation as the key event of the Midlands Pleistocene, around which a chronology for the Palaeolithic could be built and gave an age of less than 250 kyr for this episode. Work since 1985 has compared the Midlands sequence with the oxygen isotope record of the ocean basins and shown that the concept of a relatively recent ‘Wolstonian’ is now untenable and that the former chronology built around it is too short for the observed events in the area. This new time paradigm, with the earliest occupation of the area thought to be c. 500 kyr, has made necessary a reconsideration of the chronology of the Palaeolithic and Middle Pleistocene of the area. This new time framework brings into critical focus the issue of reworking of the archaeology and its true age. The tools themselves present complications of analysis compared to many other areas containing a Palaeolithic record, perhaps most notably through the use of largely non-flint raw materials, some which may have been introduced into the area by early humans or an hither-to unidentified glacial event. This opportunity to present a new chronology of occupation comes out of the work carried out by the ‘Shotton Project’ based at the University of Birmingham, and by the University of Liverpool.

An Acheulean Industry with Prepared Core Technique and the Discovery of a Contemporary Hominid Mandible at Lake Baringo, Kenya

1970 ◽  
Vol 35 ◽  
pp. 48-76 ◽  
Author(s):  
Margaret Leakey ◽  
P. V. Tobias ◽  
J. E. Martyn ◽  
R. E. F. Leakey
Keyword(s):  
Temporal Bone ◽  
Geological Mapping ◽  
Middle Pleistocene ◽  
The West ◽  
Eastern Area ◽  
Small Section ◽  
Factory Site

The material discussed in this paper was obtained during 1966 from the region to the west of Lake Baringo. Excavations were conducted in two areas about a mile apart, on either side of the Kapthurin River. The positions of these excavations are to be found on the 1: 50,000 Survey of Kenya map, Sheet 90/4 of Series Y731, Edition I-D.O.S. The first is located at ZR 314/637 and the second at ZR 316/621. Fig. 1 is based on a small section of Sheets 30/4 and 31/3 and is reproduced by permission of the Director of Surveys, Nairobi. A hominid mandible and a living site were discovered in the first area whilst in the second a factory site was found. These sites lie in the Kapthurin Beds of the eastern area of the Kamasian Hills. The beds are possibly upper Middle Pleistocene and are divided from the underlying Chemeron beds which are of Plio/Pleistocene age.The geology of the area was first described by J. W. Gregory (1921). It was subsequently studied and re-assessed by V. E. Fuchs (1939 and 1950) and by McCall, Baker and Walsh (1967). The most recent study has been made by Mr J. E. Martyn of Bedford College, London, who was engaged in geological mapping of the area west of Lake Baringo in 1966 and 1967. A report on the Kapthurin Beds by J. E. Martyn follows this introduction.During the course of mapping, J. E. Martyn and his assistants found a number of fossils in the Chemeron beds. He showed these to Mr Jonathan Leakey who noticed an incomplete hominid temporal bone amongst them.

A Potential Lower–Middle Pleistocene GSSP with Excellent Magnetostratigraphy Along the West Pacific Margin: The Chiba Section, Central Japan

2014 ◽  
pp. 257-260
Author(s):  
Osamu Kazaoka ◽  
Hisashi Nirei ◽  
Nobuyuki Aida ◽  
Hisao Kumai ◽  
Martin J. Head ◽  
...  
Keyword(s):  
Middle Pleistocene ◽  
The West ◽  
Central Japan ◽  
West Pacific ◽  
Pacific Margin

scholarly journals The “missing glaciations” of the Middle Pleistocene

2020 ◽  
Vol 96 ◽  
pp. 161-183 ◽  
Author(s):  
Philip D. Hughes ◽  
Philip L. Gibbard ◽  
Jürgen Ehlers
Keyword(s):  
High Amplitude ◽  
Middle Pleistocene ◽  
Volume Changes ◽  
The West ◽  
Feedback Mechanisms ◽  
West Antarctic Ice Sheet ◽  
Ice Volume ◽  
West Antarctic ◽  
Middle Pleistocene Transition

AbstractGlobal glaciations have varied in size and magnitude since the Early–Middle Pleistocene transition (~773 ka), despite the apparent regular and high-amplitude 100 ka pacing of glacial–interglacial cycles recorded in marine isotope records. The evidence on land indicates that patterns of glaciation varied dramatically between different glacial–interglacial cycles. For example, Marine Isotope Stages (MIS) 8, 10, and 14 are all noticeably absent from many terrestrial glacial records in North America and Europe. However, globally, the patterns are more complicated, with major glaciations recorded in MIS 8 in Asia and in parts of the Southern Hemisphere, such as Patagonia, for example. This spatial variability in glaciation between glacial–interglacial cycles is likely to be driven by ice volume changes in the West Antarctic Ice Sheet and associated interhemispheric connections through ocean–atmosphere circulatory changes. The weak global glacial imprint in some glacial–interglacial cycles is related to the pattern of global ice buildup. This is caused by feedback mechanisms within glacial systems themselves that partly result from long-term orbital changes driven by eccentricity.

scholarly journals Distribution of heavy metals in plant communities of the West Siberian Arctic and Subarctic

2021 ◽  
Vol 284 ◽  
pp. 01009
Author(s):  
Elena Popova
Keyword(s):  
Heavy Metals ◽  
Plant Communities ◽  
Natural Ecosystems ◽  
The West ◽  
Low Concentrations ◽  
Siberian Arctic ◽  
Accumulation Of Metals ◽  
Long Time ◽  
High Concentrations ◽  
Excessive Accumulation

The paper presents the results of comprehensive studies on the problem of formation of a deposit of heavy metals in plant communities of the West Siberian Arctic and Subarctic. The regularities of the concentration and redistribution of heavy metals in the soil-plant system have been revealed. Excessive accumulation of heavy metals by different plant species is limited by the selectivity of root absorption in relation to certain elements, and therefore it is important to calculate the coefficient of biological absorption. The interrelation between the intensity of recreational loading and change in the nature, grass cover structure.Among the identified pollutants that accumulate by plants identified a group of heavy metals and microelements (Pb, Sr, Cu, Zn, Ni ). It is shown that the linear dependence of the accumulation of metals in the system “soil-plant” is observed only in the range of low concentrations of pollutants in the ground growing. With high concentrations the reverse dependence occurs. Formulated, justified and tested methodical approaches to preparation of complex long-time observations of the natural ecosystems.

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