REGIONAL NEOGENE-QUATERNARY STRATIGRAPHY OF THE PEACE RIVER LOWLAND, NORTHWESTERN ALBERTA

2017 ◽  
Author(s):  
Gregory Hartman ◽  
◽  
Jessica Slomka
Keyword(s):  
Peace River ◽  
Quaternary Stratigraphy

Quaternary stratigraphy and glacial history of the Peace River valley, northeast British ColumbiaThis article is one of a selection of papers published in this Special Issue on the theme Geology of northeastern British Columbia and northwestern Alberta: diamonds, shallow gas, gravel, and glaciers.

2008 ◽  
Vol 45 (5) ◽  
pp. 549-564 ◽  
Author(s):  
Gregory M.D. Hartman ◽  
John J. Clague
Keyword(s):  
British Columbia ◽  
River Valley ◽  
Quaternary Sediments ◽  
Shallow Gas ◽  
Peace River ◽  
Last Glaciation ◽  
Quaternary Stratigraphy ◽  
History Of ◽  
Late Wisconsinan ◽  
Selection Of

Two Cordilleran and three Laurentide glacial advances are recorded in Quaternary sediments and landforms in the Peace River valley, northeast British Columbia. The advances are inferred from fluvial gravels, glaciolacustrine sediments, and tills within nested paleovalleys excavated during three interglaciations and from the distribution of granitoid clasts derived from the Canadian Shield. Till of the last (Late Wisconsinan) Laurentide glaciation occurs at the surface, except where it is overlain by postglacial sediments. The advance that deposited this till was the most extensive in the study area, and the only advance definitively recognized in western Alberta south of the study area. Late Wisconsinan Cordilleran till has not been found in the study area, but Cordilleran and Laurentide ice may have coalesced briefly during the last glaciation. Support for this supposition is provided by the inferred deflection of Laurentide flutings to the southeast by Cordilleran ice. The earliest Laurentide advance may have been the least extensive of the three Laurentide events recognized in the study area. Erratics attributed to this advance occur only east of the Halfway River – Beatton River drainage divide.

scholarly journals What If the ‘Anthropocene’ Is Not Formalized as a New Geological Series/Epoch?

Quaternary ◽  
2018 ◽  
Vol 1 (3) ◽  
pp. 24 ◽  
Author(s):  
Valentí Rull
Keyword(s):  
Present State ◽  
Executive Committee ◽  
Working Group ◽  
Recent Literature ◽  
Special Issue ◽  
Environmental Sciences ◽  
International Union ◽  
Quaternary Stratigraphy ◽  
Wide Range ◽  
Geological Sciences

In the coming years, the Anthropocene Working Group (AWG) will submit its proposal on the ‘Anthropocene’ to the Subcommission of Quaternary Stratigraphy (SQS) and the International Commission on Stratigraphy (ICS) for approval. If approved, the proposal will be sent to the Executive Committee of the International Union of Geological Sciences (IUGS) for ratification. If the proposal is approved and ratified, then the ‘Anthropocene’ will be formalized. Currently, the ‘Anthropocene’ is a broadly used term and concept in a wide range of scientific and non-scientific situations, and, for many, the official acceptance of this term is only a matter of time. However, the AWG proposal, in its present state, seems to not fully meet the requirements for a new chronostratigraphic unit. This essay asks what could happen if the current ‘Anthropocene’ proposal is not formalized by the ICS/IUGS. The possible stratigraphic alternatives are evaluated on the basis of the more recent literature and the personal opinions of distinguished AWG, SQS, and ICS members. The eventual impact on environmental sciences and on non-scientific sectors, where the ‘Anthropocene’ seems already firmly rooted and de facto accepted as a new geological epoch, are also discussed. This essay is intended as the editorial introduction to a Quaternary special issue on the topic.

WHITE SPRUCE ROOTING MODIFICATIONS ON THE FLUVIAL DEPOSITS OF THE LOWER PEACE RIVER

1959 ◽  
Vol 35 (4) ◽  
pp. 305-311 ◽  
Author(s):  
W. W. Jeffrey
Keyword(s):  
White Spruce ◽  
Adventitious Rooting ◽  
Fluvial Deposits ◽  
Peace River

Distinctive rooting modifications of white spruce were noted on fluvial sites of the lower Peace River. Photographs of these modifications are given and a multi-layered form is suggested to have arisen through adventitious rooting stimulated by periodic inundation. Significance of the modifications in silviculture is briefly discussed.

New data on the late Quaternary stratigraphy and paleogeography of the Wijdefjorden Region (West Spitsbergen)

2007 ◽  
Vol 413 (1) ◽  
pp. 256-258 ◽  
Author(s):  
V. V. Sharin ◽  
V. V. Alekseev ◽  
V. A. Dymov ◽  
I. A. Pogodina ◽  
D. Yu. Bol’shiyanov ◽  
...  
Keyword(s):  
Late Quaternary ◽  
Quaternary Stratigraphy ◽  
West Spitsbergen
Sign in / Sign up

Export Citation Format

Share Document