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Title:
Holocene Relative Sea-Level History of Novaya Zemlya, Russia, and Implications for Late Weichselian Ice-Sheet Loading
Authors:
Zeeberg, JaapJan; Lubinski, David J.; Forman, Steven L.
Affiliation:
AA(Department of Earth and Environmental Sciences (M/C 186), University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois, 60607-7059, ; E-mail: jzeebe1@uic.edu), AB(Institute of Arctic and Alpine Research (INSTAAR), 1560 30th Street, Boulder, Colorado, 80303), AC(Department of Earth and Environmental Sciences (M/C 186), University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois, 60607-7059)
Publication:
Quaternary Research, Volume 56, Issue 2, p. 218-230.
Publication Date:
09/2001
Origin:
ELSEVIER
Abstract Copyright:
(c) 2001 University of Washington
DOI:
10.1006/qres.2001.2256
Bibliographic Code:
2001QuRes..56..218Z

Abstract

We present six new radiocarbon-dated emergence curves that provide a detailed record of postglacial emergence of northern Novaya Zemlya and ages which constrain the emergence of Vaygach Island in the southern archipelago. Radiocarbon ages on Hiatella sp. from a lateral moraine in Russkaya Gavan' and abundances of foraminifea in a marine core from Nordenskiold Bay, 300 km south of our study area, indicate that coastal deglaciation occurred prior to ∼10,000 cal yr B.P. However, postglacial emergence commenced ∼7000 cal yr B.P., with stabilization of global sea level. The total emergence is 13-11 m above sea level (asl) with apparent uplift rates of 1-2 mm/yr for the past 2000 yr, indicating modest glacier loads (<1 km), early (>11,000 cal yr B.P.) deglaciation, or both. The isobase pattern, showing no east-west tilt across Novaya Zemlya, and offshore moraines suggest a separate ice-dispersal center over Novaya Zemlya for the later stages of the Late Weichselian glacial cycle and possibly earlier.
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