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Organic Facies: Palynofacies and Organic Geochemistry Approaches

السحنات العضوية: أوجه الحفريات ونهج الكيمياء الجيولوجية العضوية
Authors: Joo Graciano Mendona Filho; Tassa Rgo; Joalice de Oliveira Mendona; Alessandro Silva de Oliveira; Taís Freitas da Silva; Noelia Franco; Frederico Sobrinho da Silv;

Organic Facies: Palynofacies and Organic Geochemistry Approaches

Abstract

Le concept de faciès organique, ainsi que les définitions et les moyens des différents faciès sont devenus un outil très important pour la caractérisation paléoenvironnementale, l'analyse des bassins et l'exploration des combustibles fossiles. L'application de ce concept est le meilleur moyen d'intégrer la microscopie et les techniques géochimiques pour étudier le kérogène contenu dans les roches sédimentaires. Ainsi, l'analyse des palynofaciès et les méthodes géochimiques en vrac (faciès organiques) sont utilisées pour caractériser la matière organique sédimentaire (kérogène et bitume). L'analyse des palynofacies implique l'étude intégrée de tous les aspects de l'assemblage kérogène : identification des composants particulaires individuels, évaluation de leurs proportions absolues et relatives et de leurs états de conservation. La corrélation entre les palynofaciès et les données géochimiques fournit les modèles de faciès organiques qui soulignent les conditions environnementales de dépôt et le potentiel de roche source d'hydrocarbures.

El concepto de facies orgánicas, así como las definiciones y medios de las diferentes facies se convirtieron en una herramienta muy importante para la caracterización paleoambiental, el análisis de cuencas y la exploración de combustibles fósiles. La aplicación de este concepto es la mejor manera de integrar la microscopía y las técnicas geoquímicas para estudiar el querógeno contenido en las rocas sedimentarias. Así, el análisis de palinofacies y los métodos geoquímicos a granel (facies orgánicas) se utilizan para caracterizar la materia orgánica sedimentaria (querógeno y betún). El análisis de las palinofacias implica el estudio integrado de todos los aspectos del ensamblaje del querógeno: identificación de los componentes particulados individuales, evaluación de sus proporciones absolutas y relativas y estados de conservación. La correlación entre las palinofacies y los datos geoquímicos proporciona los modelos de facies orgánicas que señalan las condiciones ambientales de deposición y el potencial de roca fuente de hidrocarburos.

The concept of organic facies, as well as the definitions and means of the different facies became a very important tool to palaeoenvironmental characterization, basin analysis and fossil fuel exploration. The application of this concept is the best way to integrate microscopy and geochemical techniques to study kerogen contained in sedimentary rocks. Thus, palynofacies analysis and bulk geochemical methods (organic facies) are used to characterize the sedimentary organic matter (kerogen and bitumen). Palynofacies analysis involves the integrated study of all aspects of the kerogen assemblage: identification of the individual particulate components, assessment of their absolute and relative proportions and preservation states. The correlation between palynofacies and geochemical data provides the organic facies models that point out the depositional environmental conditions and hydrocarbon source rock potential.

أصبح مفهوم الأوجه العضوية، بالإضافة إلى تعريفات ووسائل الأوجه المختلفة، أداة مهمة جدًا للتوصيف البيئي القديم وتحليل الأحواض واستكشاف الوقود الأحفوري. تطبيق هذا المفهوم هو أفضل طريقة لدمج التقنيات المجهرية والجيوكيميائية لدراسة الكيروجين الموجود في الصخور الرسوبية. وبالتالي، يتم استخدام تحليل الأوجه القديمة والأساليب الجيوكيميائية السائبة (الأوجه العضوية) لتوصيف المادة العضوية الرسوبية (الكيروجين والقار). يتضمن تحليل الوجوه القديمة دراسة متكاملة لجميع جوانب تجمع الكيروجين: تحديد مكونات الجسيمات الفردية، وتقييم نسبها المطلقة والنسبية وحالات الحفظ. يوفر الارتباط بين الأوجه القديمة والبيانات الجيوكيميائية نماذج الأوجه العضوية التي تشير إلى الظروف البيئية الترسيبية وإمكانات الصخور الهيدروكربونية المصدر.

Related Organizations
Keywords

Facies, Geology, Geomorphology, FOS: Earth and related environmental sciences, Sedimentary depositional environment, Geological Evolution of the Arctic Region, Palynofacies, paleogeography, Structural basin, Organic geochemistry, Earth and Planetary Sciences, Engineering, Geochemistry, Characterization of Shale Gas Pore Structure, Mechanics of Materials, Artificial Intelligence, Physical Sciences, Computer Science, Machine Learning for Mineral Prospectivity Mapping, Source rock, Petrology

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
36
Top 10%
Top 10%
Average
hybrid