Results 11 to 20 of about 2,865 (220)

Fabric Preserving and Fabric Destroying Dolomitization: A case of Seawater Dolomitization

open access: yesSultan Qaboos University Journal for Science, 2006
This study is based on field, petrographic and geochemical investigations of Hajar Supergroup autochthonous rocks: Ruus Al Jibal Group- Musandam Peninsula, and Akhdar Group- Jebel Akhdar, Oman and U.A.E., and para-autochthonous Maqam Formation-Sumeini ...
Alham Jassim Al-Langawi
doaj   +3 more sources

Multiple proxies demonstrate the mechanism of dolomitization variations during global warming periods

open access: yesGeosystems and Geoenvironment, 2023
The genesis of the sedimentary dolomite has been an unexplained mystery for more than two centuries, known as the 'dolomite problem'. There may be some coupling relationship between the Phanerozoic variations in dolomite abundance and major geological ...
Zhuowei Miao   +11 more
doaj   +2 more sources

Cretaceous Limestone Dolomitization and Argument of Its Mg2+ Sources: Exampling the Bekhme and Qamchuqa Formations in the Zagros Collision Belt

open access: yesKurdistan Journal of Applied Research
This study unveils new considerations regarding the dolomitization of the Bekhme and Qamchuqa formations (BQFs), two reefal Cretaceous units in the Iraqi Zagros collisional belt.
Kamal Haji Karim , Sherzad Tofiq Mohamad
doaj   +3 more sources

Genesis and dolomitization of “Khali” powder crystal dolomite in Triassic Jialingjiang Formation, Moxi gas field, central Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2014
Taking the B bed of the second submember of the second member of Triassic Jialingjiang Formation in Moxi gas field as an example, the basic characteristics and controlling factors of the “Khali” powder dolomite reservoir is analyzed systematically, and ...
Hao TANG   +7 more
doaj   +2 more sources

Dolomitization and Hypogenic Dissolution of the Eocene Avanah Formation, Iraqi Kurdistan

open access: yesARO-The Scientific Journal of Koya University
This study constrains the mechanism of extensive dolomitization and its impact on reservoir quality of the shallowwater marine ramp carbonates of the Avanah Formation (Eocene), Iraqi Kurdistan.
Gazang H. Qadir, Howri Mansurbeg
doaj   +3 more sources

Microbialite Diversity and Ocean Redox Geochemistry of the Late Tonian Callison Lake Formation. [PDF]

open access: yesGeobiology
ABSTRACT Microbialites provide a unique insight into ancient microbial processes and environments, but trends in the diversity of unlaminated microbialites remain poorly understood. The ca. 745 Ma Callison Lake Formation in the Yukon (northwest Canada) features a range of microbialites which are diverse at both the mesoscale and microscale.
Spruzen C   +5 more
europepmc   +2 more sources

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

open access: yesLethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido   +4 more
wiley   +1 more source

Reflux stratabound dolostone and hydrothermal volcanism- associated dolostone: a two-stage dolomitization model (Jurassic, Lebanon) [PDF]

open access: yes, 2004
The Kesrouane Formation, which is characterized by pervasive dolomitization, has a stratigraphic thickness that exceeds 1000 m. It is part of a broad carbonate platform deposited in the Levant region and represents 60% of the Lebanese Jurassic rocks. Two
Nader, F.H.   +3 more
core   +1 more source

Dolomitized tidal cycles in the Agua de la Mula Member of the Agrio Formation (Lower Cretaceous), Neuquén Basin, Argentina

open access: yesLatin American Journal of Sedimentology and Basin Analysis, 2021
The Agrio Formation (Valanginian to early Barremian) is a siliciclastic and carbonate unit of the Neuquén Basin in west central Argentina. A conspicuous 20 m thick dolomitized section near the top of the upper Agua de la Mula Member of the Agrio ...
Maisa A. Tunik   +4 more
doaj   +2 more sources

Fault-controlled dolomitization in a rift basin [PDF]

open access: yes, 2017
There are numerous examples of fault-controlled, so-called hydrothermal dolomite (HTD), many of which host economic mineral deposits or hydrocarbons, but there remains a lack of consensus as to how they form.
Boyce, Adrian   +17 more
core   +1 more source

Home - About - Disclaimer - Privacy