Results 11 to 20 of about 503,982 (356)

High-frequency carbonate-siliciclastic cycles in the Miocene of the Lorca BASIN (Western Mediterranean, SE Spain) [PDF]

open access: yesGeologica Acta, 2006
The upper Miocene Parilla Formation, Lorca Basin, Spain, provides an example of stacked high-frequency cycles of mixed carbonates and siliciclastics. Cycles developed on a steep carbonate ramp bordering an alluvialfan system.
M.R. TALBOT, C. THRANA
doaj   +5 more sources

Facies, stratigraphy, and evolution of a middle Ediacaran carbonate ramp: Khufai Formation, Sultanate of Oman [PDF]

open access: yes, 2014
The Khufai Formation is the oldest carbonate platform of the Cryogenian to lowermost Cambrian Huqf Supergroup. A stratigraphic characterization of this unit includes detailed facies descriptions, a sequence-stratigraphic interpretation, and evaluation of
M. Osburn, J. Grotzinger, K. Bergmann
semanticscholar   +3 more sources

Depositional Environment and Sequence Stratigraphy of the Oligocene-Miocene Deposits North and East of Dehdasht, Izeh Zone, Zagros Basin, Iran [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2019
In this study, four well-exposed outcrops of the Asmari Fm in the southeastern part of the Izeh Zone of the Zagros Mountains were measured and sampled.
Reza Moussavi-Harami   +4 more
doaj   +1 more source

Tectonic-Lithofacies Paleogeography and Sizeable Reservoir Potential in the Early Cambrian Postrift Depressed Carbonate Ramp, Tarim Basin, NW China

open access: yesLithosphere, 2021
The carbonate ramps developed at the postrift depositional stage have become a major field of ultradeep hydrocarbon exploration. Taking the Lower Cambrian Xiaoerblak Formation in the Tarim Basin as an example, the paleotectonic framework and lithofacies ...
Yongjin Zhu   +6 more
doaj   +1 more source

The role of carbonate factories and sea water chemistry on basin‐wide ramp to high‐relief carbonate platform evolution: Triassic, Nanpanjiang Basin, South China

open access: yesThe Depositional Record, 2022
The end‐Permian extinction and its aftermath altered carbonate factories globally for millions of years, but its impact on platform geometries remains poorly understood.
Daniel J. Lehrmann   +7 more
doaj   +1 more source

Development of coral–sponge–microbialite reefs in a coated grain-dominated carbonate ramp (Upper Jurassic, eastern Sardinia, Italy)

open access: yesFacies, 2020
The Late Jurassic is a peak time of diversification of reefs with corals, stromatoporoids, calcareous and siliceous sponges, and microbialites during the Phanerozoic.
M. Nembrini, G. Della Porta, F. Berra
semanticscholar   +1 more source

From shallow-water carbonate ramp to hemipelagic deep-marine carbonate deposition: Part 3. Lithostratigraphy and Formations of the Middle to Late Anisian Bulog sedimentary successions (Bulog Group) in the Dinarides (Bosnia and Herzegovina, Serbia, Montenegro) [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2023
In the Middle Anisian the opening of the Neo‐Tethys started and this is characterized by a significant change in deposition in the whole Western Tethys Realm.
Sudar Milan   +5 more
doaj   +1 more source

Seagrass-related carbonate ramp development at the front of a fan delta (Burdigalian, New Caledonia): Insights into mixed carbonate-siliciclastic environments

open access: yes, 2020
Past shallow-water carbonate environments of the main island of New Caledonia (NC) have been subject to high terrigenous influx derived from the erosion of ultramafic obducted nappes and are therefore a relevant case study for characterizing neritic ...
E. Tournadour   +9 more
semanticscholar   +1 more source

Facies variability of pennsylvanian oil-saturated carbonate rocks (constraints from Bashkirian reservoirs of the south-east Tatarstan)

open access: yesGeoresursy, 2020
One of the strategic ways of the old oil-producing regions is to further prospecting for potentially promising areas for hydrocarbon. One of these exploration areas is the Volga-Ural region.
Anton N. Kolchugin   +5 more
doaj   +1 more source

Usage of microbial mats in depostional environment interpretation and sea level changes: A study of carbonate deposits of members 1 to 2 of the Mila Group (Deh-Sufiyan Formation) in Central Alborz [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2015
Carbonate deposits of members 1 to 2 of the Mila Group (Middle Cambrian) in Central Alborz that call Deh-Sufiyan Formation in this research, were studied in Shahmirzad, Tueh-Darvar, Mila-Kuh and Deh-Molla sections. These sediments were deposited in four
Asadollah Mahboubi   +2 more
doaj   +2 more sources

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