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REE and Nd isotopes in conodont apatite; variations with geological age and depositional environment
Judith Wright, Richard S. Seymour and Henry F. Shaw
REE and Nd isotopes in conodont apatite; variations with geological age and depositional environment (in Conodont biofacies and provincialism, David L. Clark (editor))
Special Paper - Geological Society of America (1984) 196: 325-340
REE and Nd isotopes in conodont apatite; variations with geological age and depositional environment (in Conodont biofacies and provincialism, David L. Clark (editor))
Special Paper - Geological Society of America (1984) 196: 325-340
Index Terms/Descriptors
Abstract
Trace-element studies of biogenic apatite of conodonts can be used to characterize oceanic changes during the Palaeozoic. A modified NAA technique was used to quantitatively determine REE, Th and U in biogenically precipitated apatite of conodonts and ichthyoliths. Specific REE signatures were found for contemporaneous samples from the same depositional setting. Anoxic signals, indicative of changing redox conditions in ancient seas, can be retained by fossil apatite. This is seen in Th/U and Ce measurements. Nd and Sr isotopic variations in ancient sea-waters are also recorded in the fossil apatite.
ISSN: 0072-1077
EISSN: 2331-219X
Coden: GSAPAZ
Serial Title: Special Paper - Geological Society of America
Serial Volume: 196
Title: REE and Nd isotopes in conodont apatite; variations with geological age and depositional environment
Title: Conodont biofacies and provincialism
Affiliation: Univ. Oreg., Dep. Geol.,
Eugene, OR,
United States
Affiliation: Univ. Wis. Madison, Dep. Geol. and Geophys.,
Madison, WI,
United States
Pages: 325-340
Published: 1984
Text Language: English
Publisher: Geological Society of America (GSA),
Boulder, CO,
United States
ISBN: 0-8137-2196-2
Meeting name: Pander Society symposium ; conodont biofacies and provincialism
Meeting location: Madison, WI,
USA,
United States
Meeting date: 19830428Apr. 28-30, 1983
References: 52
DOI:
10.1130/SPE196-p325
Accession Number: 1985-081861
Categories: Geochemistry of rocks, soils, and sedimentsGeneral paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 4 tables, sketch map
Secondary Affiliation: EG and C Ortec,
USA,
United StatesCalif. Inst. Technol., Div. Geol. and Planet. Sci.,
USA,
United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United KingdomTwickenhamUKUnited Kingdom
Update Code: 1985
