Results 171 to 180 of about 1,851 (210)
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Ediacaran δ13C chemostratigraphy of South China
Chemical Geology, 2007Abstract We report new δ13C chemostratigraphic data of the Ediacaran System in South China. Using litho- and biostratigraphic markers as independent calibrators, we combine new and previously published δ13C data to construct a composite δ13C profile for the Ediacaran System in South China. The composite curve shows, in chronostratigraphic order, 1) a
Chuanming Zhou, Shuhai Xiao
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A quantitative procedure for chemostratigraphy
Stratigraphy, 2004A method for condensing a sequence of geochemical determinations into a set of vector-lengths for plotting is proposed. Data from the eastern Chinese non-marine Upper Cretaceous are used for exemplifying the procedure. The effect of reducing the dimensionality by deleting minor elements is illustrated.
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Possibilities and limitations of isotopic chemostratigraphy
Lithology and Mineral Resources, 2009Postsedimentary transformations of rocks impede the use of isotopic methods for the paleoecological reconstruction and correlation of geological events. This fact was demonstrated previously based on the study of Neoproterozoic-Cambrian rocks (Vinogradov, 2008). Detailed analysis of literature material shows that the younger (Paleozoic) rocks were also
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Chemostratigraphy of the Neoproterozoic Alona Bay lavas, Ontario
Canadian Journal of Earth Sciences, 2002A basal sequence of flood basalt lavas associated with the Neoproterozoic Midcontinent rift system crops out in Alona Bay along the southeastern shore of Lake Superior in Ontario. The Alona Bay lava succession is about 1200 m thick and lies just north of the well-studied, contemporaneous Mamainse Point Formation.
James A Walker +2 more
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Applications of Wellsite Chemostratigraphy
2018Chemostratigraphy was first used at wellsite in the early 2000s but it is rather unfortunate that very little material has been published on the subject, with most articles taking the form of very short papers or conference abstracts. In spite of this, wellsite chemostratigraphy is becoming increasingly popular, as it can be used to provide lithology ...
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Australian Journal of Earth Sciences, 1997 This study uses carbon isotope chemostratigraphy to propose an age for the Success Creek Group and Crimson Creek Formation in the absence of any direct radiometric dates, palaeomagnetic or reliable palaeontological data.
Adabi, MH (15482030)
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Chemostratigraphy across the Permian-Triassic Boundary
2018A major extinction pulse occurred just below the conodont‐defined Permian‐Triassic boundary. Global‐scale compilations of increasingly larger paleontological, sedimentological, and geochemical datasets further amplify our understanding of this event by unraveling temporospatial patterns.
Schobben, Martin +6 more
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Chemostratigraphy of Upper Cretaceous Chalk in the Danish Subbasin
AAPG Bulletin, 1986ABSTRACT The application of well cuttings to geochemical analyses was studied on the basis of the elemental distribution of Mg, Sr, Mn, and Zn, and the carbonate contents in Upper Cretaceous chalk sequences from six wells in the central part of the Danish subbasin.
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Chemostratigraphy of Sedimentary Sequences: A Review of the State of the Art
Journal Geological Society of India, 1997Abstract Chemostratigraphy of sedimentary sequences involves the application of major- and trace-element geochemistry for the characterisation and subdivision of sedimentary sequences into geochemically distinct units and correlation of strata in sedimentary basins.
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