Presumed ground-ice depressions in East Anglia

1972 ◽  
Vol 327 (1570) ◽  
pp. 329-343 ◽  
Keyword(s):  
North America ◽  
Late Glacial ◽  
Specific Form ◽  
Ground Ice ◽  
East Anglia ◽  
Boulder Clay

Shallow depressions in the western parts of East Anglia on the Chalk between the boulder clay and the Fens are described and attributed to the formation of ground ice and its subsequent thawing. We prefer to use the non-committal term , ground-ice features, rather than the name of any specific form found in Arctic North America or Soviet Asia. The more recent of these forms seem to date here, as elsewhere in Europe, from Zone III of the Late-glacial (Weichselian), while a more important phase of development took place in Zone I or an earlier Weichselian phase. It is possible that the Breckland meres also originated as groundice features.

Palaeolithic Implements from Kirmington, Lincolnshire, and their relation to the 100-foot raised beach of Late Pleistocene Times

1931 ◽  
Vol 11 (3) ◽  
pp. 262-272 ◽  
Author(s):  
J. P. T. Burchell
Keyword(s):  
Late Pleistocene ◽  
Late Glacial ◽  
Upper Palaeolithic ◽  
Similar Nature ◽  
East Anglia ◽  
North West ◽  
North East ◽  
Boulder Clay

Last year I described before the Society a series of flint implements of Upper Palaeolithic (Upper Mousterian-Aurignacian) facies discovered by me in Yorkshire at the base of, and passing up into, a deposit considered by Lamplugh to resemble a weathered Boulder clay and classed by him as of Late Glacial Age. The geological aspects of these archaeological finds I have dealt with fully in a paper read subsequently to the Prehistoric Society of East Anglia. Both papers, however, were complementary to one read by J.Reid Moir on archaeological discoveries of a similar nature made by him in north-west Norfolk in the Brown Boulder clay. With the objects of obtaining confirmation of Lamplugh's geological opinion and of bridging the gap between north-west Norfolk and Yorkshire, I decided to investigate the glacial sequence in north-east Lincolnshire, choosing Kirmington as a centre.

scholarly journals Tree-Ring Records of Near-Younger Dryas Time in Central North America—Preliminary Results from the Lincoln Quarry Site, Central Illinois, Usa

Radiocarbon ◽  
2004 ◽  
Vol 46 (2) ◽  
pp. 933-941 ◽  
Author(s):  
Irina P Panyushkina ◽  
Steven W Leavitt ◽  
Alex Wiedenhoeft ◽  
Sarah Noggle ◽  
Brandon Curry ◽  
...  
Keyword(s):  
North America ◽  
Tree Ring ◽  
Environmental Changes ◽  
Ring Width ◽  
Younger Dryas ◽  
Late Glacial ◽  
Radiocarbon Dates ◽  
Initial Sampling ◽  
Central Illinois ◽  
A Site

The abrupt millennial-scale changes associated with the Younger Dryas (YD) event (“chronozone”) near the dawn of the Holocene are at least hemispheric, if not global, in extent. Evidence for the YD cold excursion is abundant in Europe but fairly meager in central North America. We are engaged in an investigation of high-resolution environmental changes in mid-North America over several millennia (about 10,000 to 14,000 BP) during the Late Glacial–Early Holocene transition, including the YD interval. Several sites containing logs or stumps have been identified and we are in the process of initial sampling or re-sampling them for this project. Here, we report on a site in central Illinois containing a deposit of logs initially thought to be of YD age preserved in alluvial sands. The assemblage of wood represents hardwood (angiosperm) trees, and the ring-width characteristics are favorable to developing formal tree-ring chronologies. However, 4 new radiocarbon dates indicate deposition of wood may have taken place over at least 8000 14C yr (6000–14,000 BP). This complicates the effort to develop a single floating chronology of several hundred years at this site, but it may provide wood from a restricted region over a long period of time from which to develop a sequence of floating chronologies, the timing of deposition and preservation of which could be related to paleoclimatic events and conditions.

Late Glacial and Holocene records of tree-killing conifer bark beetles in Europe and North America: Implications for forest disturbance dynamics

The Holocene ◽  
2020 ◽  
Vol 30 (6) ◽  
pp. 847-857 ◽  
Author(s):  
Nick Schafstall ◽  
Niina Kuosmanen ◽  
Christopher J Fettig ◽  
Miloš Knižek ◽  
Jennifer L Clear
Keyword(s):  
North America ◽  
Bark Beetle ◽  
Fossil Record ◽  
Bark Beetles ◽  
Late Glacial ◽  
Ips Paraconfusus ◽  
Distribution Data ◽  
Dryocoetes Confusus ◽  
Combining Data ◽  
Fossil Records

Outbreaks of conifer bark beetles in Europe and North America have increased in scale and severity in recent decades. In this study, we identify existing fossil records containing bark beetle remains from the end of the Last Glacial Maximum (~14,000 cal. yr BP) to present day using the online databases Neotoma and BugsCEP and literature searches, and compare these data with modern distribution data of selected tree-killing species. Modern-day observational data from the Global Biodiversity Information Facility (GBIF) database was used to map recorded distributions from AD 1750 to present day. A total of 53 fossil sites containing bark beetle remains, from both geological and archeological sites, were found during our searches. Fossil sites were fewer in Europe ( n = 21) than North America ( n = 32). In Europe, 29% of the samples in which remains were found were younger than 1000 cal. yr BP, while in North America, remains were mainly identified from late Glacial (~14,000–11,500 cal. yr BP) sites. In total, the fossil records contained only 8 of 20 species we consider important tree-killing bark beetles in Europe and North America based on their impacts during the last 100 years. In Europe, Ips sexdentatus was absent from the fossil record. In North America, Dendroctonus adjunctus, Dendroctonus frontalis, Dendroctonus jeffreyi, Dendroctonus pseudotsugae, Dryocoetes confusus, Ips calligraphus, Ips confusus, Ips grandicollis, Ips lecontei, Ips paraconfusus, and Scolytus ventralis were absent. Overall, preserved remains of tree-killing bark beetles are rare in the fossil record. However, by retrieving bulk material from new and existing sites and combining data from identified bark beetle remains with pollen, charcoal, tree rings, and geochemistry, the occurrence and dominance of bark beetles, their outbreaks, and other disturbance events can be reconstructed.

Environments and Extinctions: Man in Late Glacial North America

1986 ◽  
Vol 18 (4) ◽  
pp. 446
Author(s):  
Vera Markgraf ◽  
Jim I. Mead ◽  
David J. Meltzer ◽  
Alan Lyle Bryan
Keyword(s):  
North America ◽  
Late Glacial

Hand-Axes later than the Main Coombe-Rock of the Lower Thames Valley

1936 ◽  
Vol 16 (3) ◽  
pp. 260-264 ◽  
Author(s):  
J. P. T. Burchell
Keyword(s):  
Natural History ◽  
Present Note ◽  
British Museum ◽  
Cold Period ◽  
East Anglia ◽  
Boulder Clay ◽  
South East England ◽  
Culture Sequence ◽  
Factory Site

Archaeologists in France have for many years recognized hand-axes of St. Acheul facies in association with flake-implements of Levallois type, which are contemporary with the mid-Pleistocene deposits of the Somme valley. Their place in the culture-sequence is after the cold period that produced the main Coombe-rock of South-East England, and the Little Eastern or Upper Chalky Boulder-clay of East Anglia. The Coombe-rock referred to overwhelmed the Levallois II factory-site at Baker's Hole, Northfleet, Kent.In England, however, it has taken much longer to trace these mid-Pleistocene hand-axes in contemporary beds. The first was found by the late F. G. Spurrell on the classic ‘floor’ at the base of the Crayford Brickearth, though it was not until quite recently that the correct age of the Crayford series was determined. This specimen is now in the British Museum (Natural History), but is not figured in the present note.

Some MarinePlatyamoebaof East Anglia

1974 ◽  
Vol 54 (3) ◽  
pp. 651-664 ◽  
Author(s):  
F. C. Page
Keyword(s):  
New Species ◽  
North America ◽  
Recent Work ◽  
Brackish Water ◽  
East Anglia ◽  
Marine Habitats ◽  
A New Species

The marine Amoebida have not been investigated nearly as extensively as freshwater and soil species of that order. In North America, where they have received the most attention, they have been studied most by Schaeffer (1926), with more recent work by Bovee (e.g. 1956), Sawyer (1968, 1971a, 1911b, 1974a, 1974b, papers in preparation), and Page (1970, 1971a, 1971b, 1972a). Grell (1961, 1966) and Grell and Benwitz (1970, 1971a, 1971b) have investigated some interesting amoebae from European and African marine habitats. Droop (1962) described a new species of amoebo-flagellate (Amoebida, Vahlkampfiidae) from brackish water in Scotland, but otherwise there is little literature on British marine Amoebida. Some recent work on the British fauna was reported by Page (1972b, 1973, 1974).

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