Stratigraphic Systems: Origin and Application
نویسندگان
چکیده
منابع مشابه
Stratigraphic Dating of Fault Systems
Several northeast-trending transverse faults cut the Purcell succession and parts of the Lower Paleozoic succession in the Hughes Range. Relationships along unconfonnities within and at the base of the Lower Paleozoic strata provide evidence of the natilre and timing of displacement on these faults. Field mapping of the faults and unconformities hounding three Lower Paleozoic formntions have be...
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The sulphur isotopic composition of dissolved sulphate in seawater has varied considerably through time. Certain time intervals are characterised by distinct variations and a relatively high rate of change. These relatively rapid fluctuations allow for correlation of sediment sections using sulphur isotopes. Sulphur isotope reconstructions based on the analysis of carbonate associated sulphate ...
متن کاملPetrology and Stratigraphic Setting
anomolously low A1203, low Ti02 and are enriched in chromium and nick~A We present petrographic and chemical c ata on the Kamloops Lake picritic tmalts as we1 I as the stratigraphic setting for thwe ultramafic lavas. Age constraints derive From field relationships, Mineral chemistry indicates th 31 these ultramafic rocks represent mantle-deri.ed material which has undergone: minimal differentia...
متن کاملStratigraphic and Structural Setting
mapping of a I5 square kilometre area around Jock Creek and detailed (1:lOOO) mapping of the mineralized area were carried out in 1988 and 1989. Marsden and Moore (1989) give an account of the geology outlined by mapping during the 1988 field season. This report presents some additions and revisions to that stratigraphy, integrates field observations with petrographic work and literature rese...
متن کاملstratigraphic position, origin and characteristics of manganese mineralization horizons in the late cretaceous volcano-sedimentary sequence, south-southwest of sabzevar
introduction the mn mineralization occurs in the northeastern segment of the sabzevar zone (sz), north of the central iranian microcontinent (cim). this zone (sz) is located between the cim fragmentation in the south and the kopeh dagh sedimentary sequence in the north. the ore deposits of the northeastern segment of the sabzevar zone can be divided into three groups, each with different metal ...
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ژورنال
عنوان ژورنال: Eos, Transactions American Geophysical Union
سال: 2000
ISSN: 0096-3941
DOI: 10.1029/00eo00302