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GEOREF RECORD

Late Quaternary sedimentology and benthic foraminiferal paleoecology of the Ross Sea, Antarctica

Thomas B. Kellogg, Lisa E. Osterman and Minze Stuiver
Late Quaternary sedimentology and benthic foraminiferal paleoecology of the Ross Sea, Antarctica
Journal of Foraminiferal Research (October 1979) 9 (4): 322-335

Abstract

Analyses of benthic foraminifera and sediment size were made on samples from three Ross Sea cores to determine the late Quaternary history of the region. Three sedimentary units and a Transition Zone were recognized, representing different depositional environments during the Late Quaternary. Preliminary radiocarbon data show that Unit A is Holocene in age. Unit B underlies Unit A in most cores collected from the continental shelf. Both the flora and benthic fauna of Unit B suggest intense reworking. A maximum age for the most recent episode of reworking is Brunhes. Units A and B are separated by a Transition Zone which consists of well-sorted sandy sediment. On the continental rise north of the Ross Sea, Unit B does not occur. Instead, a diatom-rich, ice-rafted sediment (Unit C) is found underlying Unit A, suggesting that the grounding line at the last glacial maximum was in the vicinity of the continental shelf margin. (Auth.)


ISSN: 0096-1191
EISSN: 1943-264X
Coden: JFARAH
Serial Title: Journal of Foraminiferal Research
Serial Volume: 9
Serial Issue: 4
Title: Late Quaternary sedimentology and benthic foraminiferal paleoecology of the Ross Sea, Antarctica
Affiliation: Univ. Maine at Orono, Inst. Quat. Stud., Orono, ME, United States
Pages: 322-335
Published: 197910
Text Language: English
Publisher: Cushman Foundation for Foraminiferal Research, Ithaca, NY, United States
References: 35
Accession Number: 1986-023473
Categories: Quaternary geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table, charts, strat. col., sketch map
S78°30'00" - S71°30'00", W158°00'00" - E162°00'00"
Secondary Affiliation: Univ. Colo., USA, United StatesUniv. Wash., USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States
Update Code: 1986
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