COMPARISON OF GEOCHEMICAL INDEXES USED FOR THE INTERPRETATION OF PALAEOREDOX CONDITIONS IN ANCIENT MUDSTONES

被引:1636
作者
JONES, B [1 ]
MANNING, DAC [1 ]
机构
[1] UNIV MANCHESTER,DEPT GEOL,MANCHESTER M13 9PL,LANCS,ENGLAND
关键词
D O I
10.1016/0009-2541(94)90085-X
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Eight geochemical indices used for the interpretation of bottom water palaeo-oxygen concentrations for argillaceous sedimentary rocks have been calculated for a suite of Upper Jurassic mudstones drawn from the Draupne and Heather Formations of the Norwegian North Sea, and the Kimmeridge Clay Formation from onshore England. The eight indices: DOP, C/S, U/Th, authigenic uranium, V/Cr, Ni/Co, Ni/V and (Cu+Mo)/Zn have been examined by means of factor analysis, to identify the most reliable. DOP, U/Th, authigenic uranium, V/Cr and Ni/Co form an internally consistent set and are recommended as the most reliable of the indices. Ni/V, C/S and (Cu+Mo)/Zn convey little palaeo-oxygenation information and are not regarded as reliable. The parameters identified as reliable (DOP, Ni/Co, V/Cr, U/Th and authigenic uranium), have been calibrated against DOP, for inter-comparison purposes, and to allow their interpretation against DOP-derived depositional conditions.
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页码:111 / 129
页数:19
相关论文
共 67 条
[1]  
Adams JAS, 1958, AM ASSOC PETR GEOL B, V42, P387, DOI [10.1306/0BDA5A89-16BD-11D7-8645000102C18, DOI 10.1306/0BDA5A89-16BD-11D7-8645000102C1865D]
[2]  
Afifi A.A., 1984, COMPUTER AIDED MULTI
[3]   C-S-FE RELATIONSHIPS AND THE ISOTOPIC COMPOSITION OF PYRITE IN THE NEW ALBANY SHALE OF THE ILLINOIS BASIN, USA [J].
ANDERSON, TF ;
KRUGER, J ;
RAISWELL, R .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1987, 51 (10) :2795-2805
[4]  
[Anonymous], 1990, STUDIES GEOLOGY, DOI DOI 10.1306/ST30517C2
[5]   THE STRUCTURAL EVOLUTION OF THE NORTHERN VIKING GRABEN AND ITS BEARING UPON EXTENSIONAL MODES OF BASIN FORMATION [J].
BADLEY, ME ;
PRICE, JD ;
DAHL, CR ;
AGDESTEIN, T .
JOURNAL OF THE GEOLOGICAL SOCIETY, 1988, 145 :455-472
[6]  
Barnard P. C., 1981, PETROLEUM GEOLOGY CO, P169
[7]   SEDIMENTARY PYRITE FORMATION [J].
BERNER, RA .
AMERICAN JOURNAL OF SCIENCE, 1970, 268 (01) :1-&
[8]   BURIAL OF ORGANIC-CARBON AND PYRITE SULFUR IN SEDIMENTS OVER PHANEROZOIC TIME - A NEW THEORY [J].
BERNER, RA ;
RAISWELL, R .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1983, 47 (05) :855-862
[9]   SEDIMENTARY PYRITE FORMATION - AN UPDATE [J].
BERNER, RA .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1984, 48 (04) :605-615
[10]  
Bjorlykke K, 1974, NOR GEOL UNDERS ARSM, V305, P87