Results 11 to 20 of about 18,782 (249)

Assessing the Effect of Large Igneous Provinces on Global Oceanic Redox Conditions Using Non‐traditional Metal Isotopes (Molybdenum, Uranium, Thallium)

open access: yesGeophysical Monograph Series, Page 305-323., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Brian Kendall   +2 more
wiley  

+8 more sources

Chemical, Mineralogical and Isotopic Studies of Diagenesis of Carbonate and Clastic Sediments [PDF]

open access: yes, 2021
Diagenesis of carbonates and clastic sediments encompasses the biochemical, mechanical, and chemical changes that occur in sediments subsequent to deposition and prior to low-grade metamorphism.

core   +1 more source

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

Quantitative simulation of the densification process of sandstone reservoir in the Xu 3 Member of Xujiahe Formation in western Sichuan Depression, Sichuan Basin

open access: yes地质科技通报, 2023
In order to clarify the densification process and quantitatively restore the porosity evolution of the Xu 3 Member sandstone reservoir in western Sichuan Depression, the diagenesis of the Xu 3 Member was system atically analyzed using thin sections ...
Yu Chang   +10 more
doaj   +1 more source

Controls of depositional facies and diagenetic alterations on reservoir quality of the Fahliyan Formation in the Central Zagros area [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2020
The Fahliyan Formation is a member of the Khami Group with Neocomian–Barremian age. In two surface sections in the Izeh Zone and two wells of the southern Dezful Embayment, it includes 12 microfacies deposited on four facies belts as tidal flat, inner ...
Hamzeh Mehrabi   +2 more
doaj   +1 more source

Diagenetic–Porosity Evolution and Reservoir Evaluation in Multiprovenance Tight Sandstones: Insight from the Lower Shihezi Formation in Hangjinqi Area, Northern Ordos Basin

open access: yesLithosphere, 2022
The reservoir property of tight sandstones is closely related to the provenance and diagenesis, and multiprovenance system and complex diagenesis are developed in Hangjinqi area.
Xiao Sun   +10 more
doaj   +1 more source

Microfacies Analysis and Depositional Environments of Lower Sa’adi Formation, Southern Iraq

open access: yesIraqi Geological Journal, 2022
The Sa’adi Formation is a part of the late Cretaceous period in the Santonian-Campanian stage that represents a potential hydrocarbon-bearing reservoir across many oilfields in the Mesopotamian Basin, South of Iraq.
Adyan A. Myzban   +2 more
doaj   +1 more source

Testing the impact of diagenesis on the delta O-18 and delta C-13 of benthic foraminiferal calcite from a sediment burial depth transect in the equatorial Pacific [PDF]

open access: yes, 2013
Stable oxygen and carbon isotope (O-18 and C-13) values measured in foraminiferal calcite are one of the primary tools used in paleoceanography. Diagenetic recrystallization of foraminiferal calcite can act to reset primary isotopic values, but its ...
Wilson, Paul   +5 more
core   +1 more source

Litofasies dan Diagenesis Batugamping Formasi Rajamandala di Lintasan Cikamuning

open access: yesEthos: Jurnal Penelitian dan Pengabdian kepada Masyarakat, 2020
. Limestone of Rajamandala Formation is one of formation that located in North West Java basin with Late Oligocene age based on  Martodjojo, 1984. Rajamandala Formation is well exposed in Padalarang area extends to Sukabumi area of West Java.
Wahyu Budhi Khorniawan
doaj   +1 more source

Diagenesis and reservoir quality of the Upper Triassic Chang 6 member in Jingan Oilfield, Ordos Basin, China

open access: yesPetroleum, 2018
The Chang 6 reservoir of Yanchang formation in Jingan oilfield has relatively poor quality: the porosity ranges mainly from 8 to 14%, and permeability ranges from 0.018 to 10.48 md, with a mean of 1.10 md, categorized as low porosity and low permeability
Bin Li   +4 more
doaj   +1 more source

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