منابع مشابه
Quaternary Stratigraphy and Events in Southeastern Quebec
Quaternary stratigraphic units have been mapped in the Appalachian region of southeastern Quebec, and formal stratigraphic names for these units are proposed. Evidence exists for four separate glacial phases, the last three of which are represented by tills. The three tills, from oldest to youngest, have been named Johnville, Chaudiere, and Lennoxville, respectively. Stratified sediments interb...
متن کاملQuaternary stratigraphy of Noire River cores, Beauceville area, Quebeci
Potentially gold-bearing sediments in buried valleys in the Beauceville area have been sampled and studied using stratigraphic drilling techniques. These investigations show that river orientation transverse to dominant ice $ow directions, the relationships of preglacial and glacial sediments, oxidation at depth, brown colour in till, and distinctive geochemical data for Ni all provide importan...
متن کاملLate Quaternary Sedimentation and Stratigraphy in the Strait of Sicily
OFFICIAL PUBLICATION DATE is handstamped in a limited number of initial copies and is recorded in the Institution's annual report, Smithsonian Year. SI PRESS NUMBER 6166. SERIES COVER DESIGN: Aerial view of Ulawun Volcano, New Britain. Library of Congress Cataloging in Publication Data Maldonado, Andres. Late Quaternary sedimentation and stratigraphy in the Strait of Sicily. (Smithsonian contri...
متن کاملTime and Climate in Stratigraphy: a Quaternary Perspective
David Bowen perhaps stands in the middle, with an interactive approach to terrestrial and oceanic stratigraphies. He started uncontroversially by affirming the importance of defining chronostratigraphy from local terrestrial sequences and correlating outwards only from that starting point. However, he also stated a firm belief in the importance of broader correlations with the ocean sequence, a...
متن کاملNew perspectives on Beringian Quaternary paleogeography, stratigraphy, and glacial history
Aspects of the paleogeography, stratigraphy, and glacial history of Beringia have been greatly revised over the past 15}20 yr. Access to North East Russia, in particular, has provided the opportunity to evaluate the Beringia landscape as a contiguous subcontinent during the Quaternary. For the "rst time, new research has made clearer the connection between tectonic forces and the submergence of...
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ژورنال
عنوان ژورنال: The Quaternary Research (Daiyonki-Kenkyu)
سال: 1991
ISSN: 1881-8129,0418-2642
DOI: 10.4116/jaqua.30.131