Journal ArticleDOI
Infrared estimates of aliphatic kerogen carbon in sedimentary rocks
Reads0
Chats0
TLDR
In this article, an infrared routine was developed to estimate the aliphatic portion of kerogen carbon in sedimentary rocks, which does not require isolation of the organic matter and is based on a computer-assisted determination of global band areas in the region of the ALH-hydrogen stretching vibrations around 2900cm−1.About:
This article is published in Organic Geochemistry.The article was published on 1986-01-01. It has received 35 citations till now. The article focuses on the topics: Kerogen & Carbon.read more
Citations
More filters
Journal ArticleDOI
Geochemical evolution of organic-rich shales with increasing maturity: A STXM and TEM study of the Posidonia Shale (Lower Toarcian, northern Germany)
Sylvain Bernard,Brian Horsfield,Hans-Martin Schulz,Richard Wirth,Anja Schreiber,Neil Sherwood +5 more
TL;DR: In this article, a combination of compositional organic geochemistry and spectromicroscopy techniques, including synchrotron-based scanning transmission X-ray microscopy (STXM), was used to characterize samples of the Lower Toarcian Posidonia Shale from northern Germany at varying stages of thermal maturation.
Journal ArticleDOI
The structure of kerogen and related materials. A review of recent progress and future trends
TL;DR: A combination of elemental analysis, spectroscopic information and chemical data from pyrolysis, bitumen composition in natural rocks and sometimes chemical degradation were used to develop constitutional models of kerogens or asphaltenes of different origins and different levels of thermal evolution as discussed by the authors.
Journal ArticleDOI
Comparison of different methods to determine the degree of peat decomposition in peat bogs
TL;DR: In this paper, the authors compared changes in peat decomposition proxies in cores of two peat bogs (Konigsmoor, KK; Kleines Rotes Bruch, KRB) from the Harz Mountains (Germany) using C / N ratios, Fourier trans-form infrared spectra absorption (FTIR) intensities, Rock Eval ® oxygen and hydrogen indices, 13 C and 15 N iso-topic signatures and UV-absorption (UV-ABS) of NaOH peat extracts.
Journal ArticleDOI
Organic geochemistry of freshwater and alkaline lacustrine sediments in the Green River Formation of the Washakie Basin, Wyoming, U.S.A.
Brian Horsfield,D.J. Curry,K.M. Bohacs,Ralf Littke,Jürgen Rullkötter,H.J. Schenk,Matthias Radke,Rainer G. Schaefer,A.R. Carroll,G. Isaksen,E.G. Witte +10 more
TL;DR: In this paper, two members of the Green River Formation in the Washakie Basin have been analysed by organic geochemical and organic petrographic techniques and the results placed in a sequence stratigraphic framework.
Journal ArticleDOI
Using natural maturation series to evaluate the utility of parallel reaction kinetics models: an investigation of Toarcian shales and Carboniferous coals, Germany
H.J. Schenk,Brian Horsfield +1 more
TL;DR: In this paper, the results of an open-system pyrolysis of low-rank samples were used to predict the formation rate of the Toarcian shales and Carboniferous vitrains.
References
More filters
Book
Petroleum Formation and Occurrence
TL;DR: The early transformation of organic matter from organisms to geochemical fossils and Kerogen has been studied in the literature as mentioned in this paper, with a focus on the migration and accumulation of oil and gas.
Journal ArticleDOI
Méthode rapide de caractérisation des roches mètres, de leur potentiel pétrolier et de leur degré d'évolution
TL;DR: In this article, a methode and an appareillage adaptes a l'exploration petroliere are presented, and the methode convient particulierement bien a léestimation du rendement en huile des roches bitumineuses.
Journal ArticleDOI
Limitations of ‘Rock-Eval’ pyrolysis for typing organic matter
TL;DR: In this paper, it was shown that although the modified van Krevelen diagram may be useful for tracing evolutionary pathways as organic matter matures, it can be very misleading when used to assess kerogen type.
Journal ArticleDOI
Role of the mineral matrix during kerogen pyrolysis
TL;DR: In this article, the interaction between pure clay minerals and the hydrocarbons coming from the cracking of an organic matter of marine origin (type II) was investigated under pyrolysis conditions of the Rock-Eval type.