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Diagenesis of diatomite from the Kolubara Coal Basin, Barosevac, Serbia

Journal Article:

Abstract

Diatomite associated with the Kolubara Coal Basin was studied to better understand early stage silica diagenesis of shallow water deposits. The Kolubara Basin consists of Neogene siliciclastic rocks, diatomite, marlstone and rare carbonates. Palaeozoic metamorphic and Mesozoic sedimentary and igneous basement rocks are transgressively overlain by Upper Miocene sandstone, siltstone, shale and mudstone. This Upper Miocene section is transgressively overlain by the Pontian section, which contains diatomite and coal beds. White and grey diatomite form beds 0.7-2.2 m thick that are continuous over an area of about 2 km[sup 2]. Siliceous rocks vary in composition from diatomite (81-89% SiO[sub 2]) to diatom-bearing shale (58-60% SiO[sub 2]). Siliceous deposits are laminated in places, with the laminae defined by variations in clay minerals, organic matter and diatoms. Diatomite shows only incipient diagenesis characterized by the fragmentation of diatom frustules, the minor to moderate corrosion of frustules and the formation of minor amounts of opal-A (X-ray amorphous inorganic opal) cement. The low degree of diagenesis results from the young age of the deposits, low burial temperatures and possibly also from the presence of abundant organic matter and the dissolution of kaolinite. The presence of only weak diagenesis is also reflected by the characteristically  More>>
Authors:
Obradovic, J; Hein, J R; Djurdjevic, J [1] 
  1. University of Belgrade, Belgrade (Yugoslavia). Faculty of Mining and Geology
Publication Date:
Sep 01, 1994
Product Type:
Journal Article
Reference Number:
CLA-95-020074; EDB-95-026968
Resource Relation:
Journal Name: Geological Journal; (United Kingdom); Journal Volume: 29:3
Subject:
01 COAL, LIGNITE, AND PEAT; DIAGENESIS; OPALS; CLAYS; COAL DEPOSITS; DIATOMS; GEOLOGIC DEPOSITS; SILICA; ALGAE; CHALCOGENIDES; CHROMOPHYCOTA; MINERAL RESOURCES; MINERALS; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; PLANTS; RESOURCES; SILICON COMPOUNDS; SILICON OXIDES; 011000* - Coal, Lignite, & Peat- Reserves, Geology, & Exploration
OSTI ID:
6919230
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0072-1050; CODEN: GELJA8
Submitting Site:
CLA
Size:
Pages: 209-217
Announcement Date:

Journal Article:

Citation Formats

Obradovic, J, Hein, J R, and Djurdjevic, J. Diagenesis of diatomite from the Kolubara Coal Basin, Barosevac, Serbia. United Kingdom: N. p., 1994. Web.
Obradovic, J, Hein, J R, & Djurdjevic, J. Diagenesis of diatomite from the Kolubara Coal Basin, Barosevac, Serbia. United Kingdom.
Obradovic, J, Hein, J R, and Djurdjevic, J. 1994. "Diagenesis of diatomite from the Kolubara Coal Basin, Barosevac, Serbia." United Kingdom.
@misc{etde_6919230,
title = {Diagenesis of diatomite from the Kolubara Coal Basin, Barosevac, Serbia}
author = {Obradovic, J, Hein, J R, and Djurdjevic, J}
abstractNote = {Diatomite associated with the Kolubara Coal Basin was studied to better understand early stage silica diagenesis of shallow water deposits. The Kolubara Basin consists of Neogene siliciclastic rocks, diatomite, marlstone and rare carbonates. Palaeozoic metamorphic and Mesozoic sedimentary and igneous basement rocks are transgressively overlain by Upper Miocene sandstone, siltstone, shale and mudstone. This Upper Miocene section is transgressively overlain by the Pontian section, which contains diatomite and coal beds. White and grey diatomite form beds 0.7-2.2 m thick that are continuous over an area of about 2 km[sup 2]. Siliceous rocks vary in composition from diatomite (81-89% SiO[sub 2]) to diatom-bearing shale (58-60% SiO[sub 2]). Siliceous deposits are laminated in places, with the laminae defined by variations in clay minerals, organic matter and diatoms. Diatomite shows only incipient diagenesis characterized by the fragmentation of diatom frustules, the minor to moderate corrosion of frustules and the formation of minor amounts of opal-A (X-ray amorphous inorganic opal) cement. The low degree of diagenesis results from the young age of the deposits, low burial temperatures and possibly also from the presence of abundant organic matter and the dissolution of kaolinite. The presence of only weak diagenesis is also reflected by the characteristically poor consolidation of the rocks and low rank of the associated coal.}
journal = {Geological Journal; (United Kingdom)}
volume = {29:3}
journal type = {AC}
place = {United Kingdom}
year = {1994}
month = {Sep}
}