Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Detlev Leythaeuser"'
Publikováno v:
Organic Geochemistry. 46:113-126
Thirty one crude oil samples from Lower Cretaceous reservoirs in southern Iraq were analyzed using bulk property and molecular methods to determine their maturity and biomarker characteristics, as well as to obtain information on their respective sou
Publikováno v:
Marine and Petroleum Geology. 24:199-220
The immobile portion of the oil occupying the pore space of reservoir sandstones, which is mostly represented by visible impregnations, is shown by the present study to contain geochemical signals that record their filling history. The clue to unrave
Publikováno v:
Organic Geochemistry. 35:1597-1618
The Murteree Ridge is a focus for up-dip migration from two major hydrocarbon kitchens within the intracratonic Cooper (Carboniferous–Triassic) and Eromanga (Jurassic–Cretaceous) Basins of South Australia. The accumulation histories of nine oil f
Publikováno v:
Cretaceous Research. 22:243-257
A sediment sequence which may contain the early Albian OAE 1b was investigated in a deep-water (3800 m) open-ocean environment at Site 417D, western North Atlantic Ocean. Redox cycles, which contain black shale intervals and occur in the early Albian
Publikováno v:
Geochimica et Cosmochimica Acta. 65:253-265
Distribution patterns of C37 and C38 polyunsaturated long-chain alkenones (LCAs) serve as proxies for the determination of paleotemperatures for marine surface waters. We studied Recent/Subrecent and Late Glacial/Holocene sediments from Germany, Aust
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 163:97-113
Cores from six Deep Sea Drilling Project Sites (367, 369, 137, 386, 387 and 603) of the late Albian North Atlantic Ocean were investigated for organic carbon content, δ13C values of the kerogens, maceral composition of the organic matter, C/S ratios
Autor:
Detlev Leythaeuser, P. Hofmann
Publikováno v:
Organic Geochemistry. 23:597-606
The effects of petroleum migration from carbonate source rocks through preferential expulsion of hydrocarbons from stylolites is investigated. This type of expulsion is associated with compositional fractionation. Saturated hydrocarbons and NSO compo
Publikováno v:
Ore Geology Reviews. 9:363-370
Hydrocarbon-bearing fluid inclusions in calcite-filled horizontal fractures from mature Posidonia Shale (0.88% R o ) were investigated by microscopic, microthermometric and chemical methods. The fluid inclusions predominantly contain both a liquid hy
Publikováno v:
Ore Geology Reviews. 9:353-362
Selected samples of NW German Posidonia Shale (Hils Syncline area) were separated into five fractions (bitumen, kerogen, pyrite, carbonates, silicates) and chemically analyzed for trace element concentration using ICP-OES analyses. In immature Posido
Autor:
Detlev Leythaeuser, Rolando di Primio
Publikováno v:
Marine and Petroleum Geology. 12:735-739
A mathematical model is presented for the quantification of the effects of carbonate dissolution and volume reduction on the basis of mass balance-type comparisons between sediment volumes before and after effective carbonate redistribution due to pr