Eogenetic and telogenetic cementation of sandstones =Eogenetische en telogenetische cementatie van zandstenen
- 126 Pages
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Instituut voor Aardwetenschappen der Rijksuniversiteit te Utrecht , Utrecht
Sandstone -- Belgium., Sandstone -- Spain., Cementation (Petro
|Other titles||Eogenetische en telogenetische cementatie van zandstenen.|
|Statement||door Nicolaas Molenaar.|
|Series||Geologica Ultraiectina,, no. 58|
|LC Classifications||QE1 .G1342 no. 58|
|The Physical Object|
|Pagination||vii, 126 p. :|
|LC Control Number||98183967|
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Eogenetic and telogenetic Eogenetic and telogenetic cementation of sandstones = book of sandstones. The present study concentrates on a major problem in many sedimentological studies, the prediction of Dorosity and permeability properties of sandstone unit in the subsurface: i.e., the destruction, preservation, and enhancement of porosity and permeability in subsequent diagenetic : Nicolaas Molenaar.
In addition, compaction is an important, usually complementary, process. It is governed by the clastic composition of the sediment and by the timing of cementation. Cementation usually retards or even stops compaction.
Cementation is the main cause of porosity reduction in sandstones, especially in sandstones composed of rigid by: 1. It is governed by the clastic composition of the sediment and by the timing of cementation.
Details Eogenetic and telogenetic cementation of sandstones = EPUB
Cementation usually retards or even stops compaction. Cementation is the main cause of porosity reduction in sandstones, especially in sandstones composed of rigid grains. The present study concentrates on a major problem in many sedimentological studies, the prediction of Dorosity and permeability properties of sandstone unit in the subsurface: i.e., the destruction, preservation, and enhancement of porosity and permeability in Cited by: 1.
Eogenetic and telogenetic cementation of sandstones DSpace/Manakin Repository. Eogenetic and telogenetic cementation of sandstones Porosity and permeability properties of a sandstone, are, above all, related to cementation and thus to read more Download/Full Text.
Open Access version via Utrecht University Cited by: 1. Cementation usually retards or even stops compaction. Cementation is the main cause of porosity reduction in sandstones, especially in sandstones composed of rigid grains.
Calcite and quartz commonly are the most important cementing minerals (Blatt, ). Calcite frequently constitutes the main or exclusive cement mineral in marine : N.
Molenaar. Eogenetic and telogenetic cementation of sandstones. By N. Molenaar.
Description Eogenetic and telogenetic cementation of sandstones = PDF
Abstract. The present study concentrates on a major problem in many\ud sedimentological studies, the prediction of Dorosity and permeability properties\ud of sandstone unit in the subsurface: i.e., the destruction, preservation, and\ud enhancement of porosity and permeability Author: N.
Molenaar. The imprints of eogenetic, mesogenetic and telogenetic conditions might be unequivocally reflected in the mineralogy and geochemistry of carbonate cements. However, eogenetic carbonates, particularly calcite and dolomite, may be subjected to recrystallization and resetting of isotopic signatures, fluid inclusion thermometrics and elemental by: Cementation usually retards or even stops compaction.
Cementation is the main cause of porosity reduction in sandstones, especially in sandstones composed of rigid : Magnus Wangen. The Lower Eocene shallow marine Roda Sandstone Member forms part of the Paleogene fill of the Tremp-Graus Basin in the southern Spanish Pyrenees.
It is composed of mixed siliciclastic-carbonate sandstones that were severely modified in composition and texture shortly after deposition during pauses in : Nicolaas Molenaar. Carbonate Cementation in Sandstones: Distribution Patterns and Geochemical Evolution. Carbonate cements in sandstones are dominated by calcite, dolomite, ankerite and siderite, whereas magnesite and rhodochrosite are : Sadoon Morad.
These papers present a wide and deep coverage that enhance our knowledge about carbonate cementation in various clastic depositional environments, tectonic settings and burial histories.
The book will be of special interest to researchers, petroleum geologists and teachers and students at the postgraduate level.
Diagenesis comprises a broad spectrum of physical, chemical and biological post-depositional processes by which original sedimentary assemblages and their interstitial pore waters react in an attempt to reach textural and geo- chemical equilibrium with their environment (Curtis, ; Burley et al., ).
Carbonate cements are very common and abundant in clastic sequences. They profoundly influence the quality of hydrocarbon reservoirs and supply important information on palaeoenvironments and the chemical composition and flow patterns of fluids in sedimentary basins.
Despite this importance, their distribution patterns in time and space and their. Eogenetic and telogenetic cementation of sandstones = Eogenetische en telogenetische cementatie van zandstenen. [Nicolaas Molenaar] Eogenetic and telogenetic cementation of sandstones. Utrecht: Instituut voor Aardwetenschappen der Rijksuniversiteit te Utrecht, .
The best reservoirs of the Serraria Formation are sandstones of the distal area that were affected by pervasive telogenetic dissolution of carbonate cements and silicates, and the formation of kaolinite. This occurred mostly at the beginning of the post‐rift uplift (–74 Ma), when warm and humid conditions prevailed.
netic,”“eogenetic,” and “telogenetic” are used in this article following their original definitions in Choquette and Pray (). In the areas of sedimentology, sequence stra-tigraphy, and especially diagenesis, sandstones and carbonates are commonly regarded as separate worlds, having different rules and requiring dif-File Size: 1MB.
Lack of massive eogenetic cementation in the sandstones endorses grain rearrangement and mechanical compaction, which resulted in partial porosity deterioration of the sandstones. Mechanical compaction is evidenced by bending of micas, ductile grain deformation and the formation of pseudomatrix (Fig.
12 a).Cited by: Although most quartz cementation takes place in mesogenetic environments, eogenetic quartz and opaline silica cementation may occur in water table silcretes, especially in microbially-influenced settings in arid to semi-arid regions (e.g., Abdel-Wahab et al., ; McBride et al., ).
In addition, eogenetic or telogenetic quartz cements can. of early burial as eogenetic, the time of deeper burial as mesogenetic, and the late stage associated with erosion of long-buriedcarbonates as telogenetic" (Choquette and Prayp.
The eogenetic and telogenetic stages involve surface processes. The eogenetic setting is the general areaof carbonate deposition.
The telogenetic setting File Size: 1MB. Sulfate calcitization typically occurs relatively early (in eogenetic settings) or relatively late (in telogenetic settings), in either case typically involving meteoric fluids or the near-surface activity of hypogene fluids derived from expulsion of basinal brines (Stafford et al., ).
Sandstones with scarce chlorite often suffered intense quartz cementation and pressure dissolution during deep burial. Turbidites show better development of chlorite rims and porosity than the Juréia Formation shelf deposits, apparently owing to smectite generation from VRF alteration within a more closed eogenetic system and, potentially, to Cited by: These new terms ore also applicable to process, zones of burial, or porosity formed in these times or zones (e.g., eogenetic cementation, mesogenetic zone, telogenetic porosity).
The proposed classification is designed to aid in geologic description and interpretation of pore systems and their carbonate host by: Channel‐facies sandstones were cemented only with a thin veneer of quartz overgrowths, creating a rigid but still porous quartzose framework.
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Bacterial ferric‐iron reduction throughout the water table subsequently established more ubiquitous conditions, raised pH, and caused rhombic siderite cementation within the remaining by: Springflow Hydrographs: Eogenetic vs. Telogenetic Karst by Lee J.
Florea1 and H.L. Vacher2 Abstract Matrix permeability in the range of 10 to 10 14 m2 characterizes eogenetic karst, where limestones have not been deeply buried.
In contrast, limestones of postburial, telogenetic karst have matrix permeabilities on the. Two surface or nearsurface environments, the meteoric and marine (eogenetic and telogenetic zones of 44 DIAGENETIC ENVIRONMENTS AND TOOLS FOR THEIR RECOGNITION CHEMICAL COMPACTION AUTO CEMENTATION DISSOLUTION BASINAL BRINES CEMENTATION Fig.
Eogenetic dolomite cementation in lower Permian reservoir sandstones, southern Zagros, Iran Gröcke, Darren R In spite of the increasing importance to hydrocarbon exploration of the Palaeozoic succession in southwest Iran (Zagros Belt), few comprehensive diagenetic studies of this interval have been carried out.
This is the. Prime among the detrital minerals that commonly undergo dissolution are K-feldspar and calcic plagioclase feldspar (An 10 and greater; e.g., McBride, ; Milliken et al., ), whether as isolated grains or as constituents of rock fragments (especially VRFs).Also important for generating secondary porosity is the dissolution of calcium carbonate (aragonite or calcite.
The red hematite-bearing grain-coatings, which are common in red bed sandstones deposited during arid conditions, could retard or inhibit eogenetic calcite cements and progressively restrict carbonate (dolomite) cementation during burial, and the sandstones can retain good reservoir quality at a greater depth than normal (Olivarius et al., ).Cited by: 1.
Abstract. The porosity of young limestones experiencing meteoric diagenesis in the vicinity of their deposition (eogenetic karst) is mainly a double porosity consisting of touching-vug channels and preferred passageways lacing through a matrix of interparticle contrast, the porosity of limestones experiencing subaerial erosion following burial diagenesis and uplift (telogenetic Cited by:.
(geology) Related to or arising during telogenesis, the process of erosion and oxidation that occurs when sedimentary rocks are subject to uplift. telogenetic porosity (medicine, anatomy) Related to or arising during telogenesis, the final growth state of a hair or feather follicle.
telogenetic effluviumHorst Erich König et al., Veterinary.Experimental rate data for clay cements in sandstones are reviewed and there are two model-based case studies that address the rates of growth of kaolinite and readership of this volume will include sedimentologists and petrographers who deal with the occurrence, spatial and temporal distribution patterns and importance of clay.Carbonate karst is one of the research highlights in the field of carbonate reservoir geology.
Here, we report on a new type of karst formed in the Middle Permian Maokou Formation, southern Sichuan Basin, SW China, i.e., inland facies-controlled eogenetic karst, which is different from the previously defined telogenetic by:
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