Results 61 to 70 of about 2,865 (220)
Constraining ribbon rock dolomitization by Mg isotopes: Implications for the 'dolomite problem'
, 2016 Modern dolomite formation is conditional and restricted in specific environmental and geochemical conditions, accordingly cannot be used as the analog of ancient dolostones, which normally have platform-wide distribution.
Li, Fang Bing +16 more
core +1 more source
The Impact of Diagenesis and Dolomitization on the Reservoir Potential of Middle Jurassic Samana Suk Formation from Khanpur Dam Section Hazara Basin, Khyber Pakhtunkhwa Pakistan [PDF]
International Journal of Economic and Environment Geology, 2017 Detailed study of the Samana Suk Formation has been carried out from the Khanpur Dam Section. Two lithological units have been identified in the studied section, limestone and dolomite (60% and 40% respectively).
Maqsood Ur Rahman +5 more
doaj
Reduced sediment accumulation rate enhances early marine diagenesis of periplatform sediments
The Depositional Record, Volume 12, Issue 2, April 2026.The influence of reduced sediment accumulation rate on early marine burial diagenesis was investigated in sediments collected by ODP Leg 133. Results show that low sediment accumulation rates can produce substantial and asynchronous shifts in stable carbon isotope ratios across a slope transect without the development of sedimentological indicators of ...
Amanda M. Oehlert +3 more
wiley +1 more source
Dolomitization of the Upper Jurassic carbonate rocks in the Geneva Basin, Switzerland and France
, 2018 The Upper Jurassic carbonates represent important potential targeted reservoirs for geothermal energy in the Geneva Basin (Switzerland and France). Horizons affected by dolomitization, the focus of the present study, are of particular interest because ...
Makhloufi,Y. +17 more
core +1 more source
Petrography and isotope-geochemistry of the Bayandor Formation dolomites at the type section, south-west of the Zanjan [PDF]
Journal of Stratigraphy and Sedimentology Researches, 2019 The Late Precambrian Bayandor Formation has a thickness of 402 m and consists of shale and sandstone with dolomite interlayers (with a thickness of about 2 to 8 m) in the type section of the south-west of Zanjan. Based on fieldwork studies lithofacies of
Sara Pourdivanbeigi Moghaddam +3 more
doaj +1 more source
The Depositional Record, Volume 12, Issue 2, April 2026.We studied the Permian–Triassic successions of south‐western Türkiye at five locations, synthesised sedimentological and palaeontological data, putting it into a consistent stratigraphic framework and incorporating 3D digital outcrop models. Abstract The Permian–Triassic transition is characterised by major environmental changes and the largest known ...
Baran Karapunar +12 more
wiley +1 more source
Mg isotope fractionation during microbial dolomite formation in the Khor Al‐Adaid sabkha, Qatar
The Depositional Record, Volume 12, Issue 2, April 2026.Modern sabkha sediments from southern Qatar show ca. 1‰ Ca isotope fractionation between pore water, organic matter and dolomite, supporting microbial mediation. In contrast, minimal Mg isotope fractionation and inorganic‐like dolomite δ26Mg indicate that microbial influence is indirect, expressed through subtle pore water shifts driven by Mg ...
Michael Tatzel +10 more
wiley +1 more source
Episodic dolomitization of late Cenozoic carbonates in the Bahamas; evidence from strontium isotopes
, 1991 The minimum stratigraphic age and the timing of dolomitization have been constrained in sediments of late Cenozoic age in the Bahamas (Little Bahama Bank-LBB, Andros, New Providence, San Salvador, Great Inagua and Mayaguana) using the Sr-isotope ...
Vahrenkamp, Volker C +2 more
core +1 more source
Energy Science &Engineering, Volume 14, Issue 4, Page 1976-1989, April 2026.Based on field outcrop data, core descriptions, comprehensive thin section data (plain, cast, and fluorescent), scanning electron microscopy, whole rock analysis via X‐ray diffraction, physical property tests, element logging, core recording, and oil pilot tests, we propose utilizing a mature and practical three component classification method for ...
Lin Xie +7 more
wiley +1 more source
Литосфера, 2017 Continuous sequence of the boundary carbonate sediments of the Silurian and Devonian in the Ludford - Lochkov interval (Kupruk and lower part of Madmon Formation) have been studied in the Zeravshan-Gissars mountainous region of southern Tian-Shan, Kitab ...
Elena D. Mihaylova +4 more
doaj +1 more source