2007
DOI: 10.1111/j.1365-3091.2007.00874.x
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Field geometry, petrography and geochemistry of a dolomitization front (Late Jurassic, central Lebanon)

Abstract: This contribution describes the field geometry, petrography and geochemistry of a well-exposed dolomitization front in Upper Jurassic carbonates, and attempts to highlight the sedimentological, structural and relative sea-level controls on multiphase dolomitization and related diagenetic events. The data presented reflect the superposition of various diagenetic phases which have resulted in a single dolostone body, whose dimensions are well defined in the field. Local microbial intraclastic dolomites of Late T… Show more

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Cited by 48 publications
(51 citation statements)
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“…Presently, various models have been proposed by a large number of workers (Adams and Rhodes, 1960;Badiozamani, 1973;Machel and Mountjoy, 1987;Cervato, 1990;Braithwaite et al, 2004, Nader et al, 2004, 2007Zhao et al, 2005;Davies and Smith, 2006). Dolomite related to faults and/or fractures indicate tectonic control on the dolomitisation process but dolomite distribution also depends on the nature of host rock.…”
Section: Introductionmentioning
confidence: 99%
“…Presently, various models have been proposed by a large number of workers (Adams and Rhodes, 1960;Badiozamani, 1973;Machel and Mountjoy, 1987;Cervato, 1990;Braithwaite et al, 2004, Nader et al, 2004, 2007Zhao et al, 2005;Davies and Smith, 2006). Dolomite related to faults and/or fractures indicate tectonic control on the dolomitisation process but dolomite distribution also depends on the nature of host rock.…”
Section: Introductionmentioning
confidence: 99%
“…Derin gömülme şartları için Mg (1) konnate su (kapanlanmış deniz suyu), (2) duraysız orijinal minerallerin çözünmesi, (3) basınç erimesi (sitilolitizasyon), (4) altlayan şeyllerin kompaksiyonu, (5) havzasal tuzlu sulardan (basinal brines) sağlanabilir. Bu olasılıkların ağırlığını belirlemek güçtür, fakat havzasal tuzlu sular dolomitizasyon için çok muhtemel Mg kaynağıdır [23,36].…”
Section: Dolomitleşme Modeliunclassified
“…Dedebeleni formasyonundaki dolomit örneklerinde ağır karbon değerleri gözlenmesi (Tablo 2, Şekil 11) dolomitleşme sıvısının sülfat indirgenme zonu 13 aşağısından alındığını ifade etmektedir. Azalan δO 18 değerleri düşük δO 18 'li meteorik sıvılardan ya da yükseltilmiş sıcaklıklardan sonuçlanabilir [36].…”
Section: Dolomitleşme Modeliunclassified
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