Unravelling the impacts of palaeoecology, palaeoenvironment and lithofacies on sedimentary organic NSO compounds
type: CreativeWork
description: The organic matter in sedimentary rocks that is soluble in common organic solvents comprises a complex mixture of hydrocarbons and NSO compounds (nitrogen, sulfur and oxygen bearing). The N, S, O atoms can be derived from both biogenic sources and abiogenic processes, thus organic NSO compounds are intrinsically well suited to record precursor biotic and palaeoenvironmental signatures. In addition, their physical properties are such that they possess the capacity to interact specifically with minerals of distinct surface chemistry, so they can provide precise indications for elucidating lithofacies-influenced fractionation during petroleum expulsion and migration. Until relatively recently, their molecular-level characterization was limited to the low-molecular-weight fraction, but now this range has been extended, thanks to ultra-high resolution mass spectrometry. This thesis utilises that technique to provide information on biomass input, depositional conditions and lithofacies-influenced fractionation using heavy NSO compounds, thus complementing and supplementing information contained in lower molecular weight biomarkers. The impact of biological sources (marine algae, terrestrial plants and lacustrine Botryococcus braunii) on organooxygen and organonitrogen compounds was revealed through the investigations on the solvent extracts of immature–early mature rock samples from the marine Dynow, Schöneck, Posidonia formations, the lacustrine Wealden Formation, and the terrestrial Waikato and Brunner coal measures. Coals, being the in-situ deposits of terrestrial plant remains, primarily consist of aromatic polyoxygenated Ox and N1Ox compounds, representing degradation products of lignin and tannin such as phenolic ketones and phenolic carboxylic acids as well as their condensation products with the proteinaceous degradation intermediates. Aliphatic Ox moieties derived from the plant protective substances (mainly waxes and cutan) show a pronounced even or odd carbon n…
abstract: The organic matter in sedimentary rocks that is soluble in common organic solvents comprises a complex mixture of hydrocarbons and NSO compounds (nitrogen, sulfur and oxygen bearing). The N, S, O atoms can be derived from both biogenic sources and abiogenic processes, thus organic NSO compounds are intrinsically well suited to record precursor biotic and palaeoenvironmental signatures. In addition, their physical properties are such that they possess the capacity to interact specifically with minerals of distinct surface chemistry, so they can provide precise indications for elucidating lithofacies-influenced fractionation during petroleum expulsion and migration. Until relatively recently, their molecular-level characterization was limited to the low-molecular-weight fraction, but now this range has been extended, thanks to ultra-high resolution mass spectrometry. This thesis utilises that technique to provide information on biomass input, depositional conditions and lithofacies-influenced fractionation using heavy NSO compounds, thus complementing and supplementing information contained in lower molecular weight biomarkers. The impact of biological sources (marine algae, terrestrial plants and lacustrine Botryococcus braunii) on organooxygen and organonitrogen compounds was revealed through the investigations on the solvent extracts of immature–early mature rock samples from the marine Dynow, Schöneck, Posidonia formations, the lacustrine Wealden Formation, and the terrestrial Waikato and Brunner coal measures. Coals, being the in-situ deposits of terrestrial plant remains, primarily consist of aromatic polyoxygenated Ox and N1Ox compounds, representing degradation products of lignin and tannin such as phenolic ketones and phenolic carboxylic acids as well as their condensation products with the proteinaceous degradation intermediates. Aliphatic Ox moieties derived from the plant protective substances (mainly waxes and cutan) show a pronounced even or odd carbon n…
author: Yue, Huiwen
language: en
license: http://rightsstatements.org/vocab/InC/1.0/
date published: 2023
date modified: 2026-07-27T21:28:57Z
provider: Technische Universität Berlin
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: Technische Universität Berlin

PropertyValue
property ID: DOI
value: 10.14279/depositonce-18299