Late Pleistocene folding above the Mail Arrouy Thrust, North-Western Pyrenees (France)

2012 ◽  
Vol 541-543 ◽  
pp. 57-68 ◽  
Author(s):  
Pierre Lacan ◽  
Bertrand Nivière ◽  
Dominique Rousset ◽  
Pascale Sénéchal
Keyword(s):  
Late Pleistocene ◽  
North Western ◽  
Western Pyrenees

scholarly journals Stratigraphy and sedimentology of a late Pleistocene incised valley fill: a depositional and paleogeographic model for “Cancagua” deposits in north-western Patagonia, Chile

2018 ◽  
Vol 45 (2) ◽  
pp. 161
Author(s):  
Rodrigo M. Vega ◽  
Mauricio Mella ◽  
Sven N. Nielsen ◽  
Mario Pino
Keyword(s):  
Late Pleistocene ◽  
Substantial Part ◽  
Glacial Cycle ◽  
Incised Valley ◽  
Last Glacial ◽  
Valley Fill ◽  
Sedimentary Deposits ◽  
Facies Associations ◽  
North Western ◽  
The Last Glacial

Late Pleistocene sedimentary deposits outcropping around Valdivia city, locally known as Cancagua, have been subject of contrasting interpretations, from glacial to interglacial sediments. Opposing views emerge from focusing on upstream or coastal sedimentary controls, within a zone were these potentially overlap through a full glacial cycle. Here we present the first detailed facies analysis and a broad chronological framework, reconciling previous interpretations in a single paleogeographic model that encompasses the last glacial cycle. Seven facies associations are described, interpreted as an estuarine complex developed primarily during the last glacial cycle’s highstand, yet accumulating sediments during a substantial part of the falling stage. These results offer the opportunity to extend paleoenvironmental records through a full glacial cycle in northern Patagonia.

scholarly journals Bedrock Control on Glacial Limits: Examples from the Ladakh and Zanskar Ranges, North-Western Himalaya, India

1985 ◽  
Vol 31 (108) ◽  
pp. 143-149 ◽  
Author(s):  
Douglas W. Burbank ◽  
Monique B. Fort
Keyword(s):  
Late Pleistocene ◽  
Western Himalaya ◽  
Late Glacial ◽  
Climatic Conditions ◽  
River Valley ◽  
Equilibrium Line ◽  
Indus River ◽  
The North ◽  
North Western ◽  
Glacial Advance

AbstractIn the north-western Himalaya, the distribution of modem glaciers and snowlines in the Ladakh and Zanskar Ranges adjacent to the Indus River valley suggests comparable climatic conditions prevail in the two ranges. Similarly, the positions of terminal moraines and reconstructed equilibrium-line altitudes (ELAs) indicate equivalent magnitudes of Neoglacial and Late Glacial advances in both ranges. However, the terminal positions and reconstructed ELAs from the late Pleistocene maximum advances are at least 400 m lower in the Ladakh Range than in the nearby Zanskar Range. These differences do not appear to reflect either climatic or tectonic controls. Rather, they are caused by an unusual bedrock configuration in the Zanskar Range, where vertical strata of indurated sandstones and conglomerates, and narrow steep-walled canyons cut through them, created a bulwark that effectively precluded significant down-valley advance. Without recognition of this physical impedance to glacial advance, uncritical reconstructions would greatly overestimate the altitude of the ELA in the Zanskar Range.

The Late Pleistocene and Holocene Vegetational History of Hunter Island, North-Western Tasmania

1978 ◽  
Vol 26 (4) ◽  
pp. 493 ◽  
Author(s):  
GS Hope
Keyword(s):  
Late Pleistocene ◽  
Pollen Analysis ◽  
Human Occupation ◽  
The Holocene ◽  
South Eastern ◽  
Eastern Australia ◽  
History Of ◽  
Scattered Trees ◽  
Arid Steppe ◽  
North Western

Cave Bay Cave contains pollen-bearing sediments derived partly from weathering of the roof and partly from intermittent human occupation. These span the periods c. 28,000-14,700 B.P. and c. 8000 B.P. to the present. Pollen analysis of the Pleistocene sediments indicates that an initial open shrubland was followed by grassland which became increasingly open with abundant composites. Eucalypts occurred in the area but were probably very sparse. The Holocene section records a coastal shrubland like that at present in the area. Intervals of occupation appear to have had little effect on vegetation recorded at the cave, but fires occurred in the vegetation during unoccupied as well as occupied phases. Comparison of the Pleistocene spectra with those from sites in near-coastal Tasmania and south-eastern Australia suggest that an open grassland with scattered trees was extensive from the Adelaide region down to the Bassian Plain. Some components of this cold steppe formation may occur today in the treeline woodlands on the driest parts of the Tasmanian mountains, but there may also be floristic affinities with arid steppe. The grassland probably reflects conditions colder, drier and possibly windier than any represented in the area today.

Sign in / Sign up

Export Citation Format

Share Document