نتایج جستجو برای: stylolite

تعداد نتایج: 31  

2006
G. TOPUZ

Pelagic micritic limestones within an upper Cretaceous accretionary complex in the Tavşanlı Zone, NW Turkey, preserve textures indicating incomplete prograde transformation of micritic calcite to aragonite, representing the only known example of this type. Aragonitization starts at the central parts of the micritic limestone beds and advances towards the lower and upper parts of the layers at t...

2009
E. Bonnetier C. Misbah F. Renard R. Toussaint

Non-planar solid-fluid-solid interfaces under stress are very common in many industrial and natural materials. For example, in the Earth’s crust, many rough and wavy interfaces can be observed in rocks in a wide range of spatial scales, from undulate grain boundaries at the micrometer scale, to stylolite dissolution planes at the meter scale. It is proposed here that these initially flat solid-...

Journal: :Geological Magazine 2022

Abstract The Franconian Platform of SE Germany and the underlying Permian Triassic rocks that developed from latest to time were affected by multiple compressional extensional events created a complex fracture, fault stylolite network. We reconstructed spatio-temporal variations post-Triassic palaeostress fields in strata using fault-slip tectonic inversion. Our highly resolved stress inversion...

Journal: :Geological Magazine 2022

Abstract We consider the implications of adding a cap to yield surface for elastic–plastic and elastic–visco-plastic solids with coupling between deformation, fluid flow mineral reactions. For suitable combination (low) permeability strain rate, opening-mode veins can form in compression. Such behaviour is enhanced by dissolution simultaneous reactions negative ΔV. These are equivalents compact...

Journal: :Journal of Structural Geology 2022

Stylolites are rough dissolution surfaces that show three different scaling regimes in space and time. On the small scale surface energy dominates stylolites roughen very slowly with a growth exponent of about 0.5 roughness 1.0. intermediate elastic roughening is happening faster 0.8 0.5. The transitional length between these two determined by stress during stylolite termed as cross-over scale....

Journal: :Journal of Metamorphic Geology 2021

This study combines the microstructural and petrological analysis of garnet its inclusions in quartzite-hosted garnetite from ultrahigh-pressure Lago di Cignana metaophiolite (Western Alps). We present a comprehensive record metamorphism, compaction, state stress during interaction between oceanic metasediments infiltrating fluids along major open-system fluid pathway. The arrangement into laye...

Journal: :Iraqi geological journal 2022

The microfacies analysis and porosity evolution of the Khurmala Formation (Paleocene-Early Eocene) were studied in Gomaspan Sheraswar sections High Folded Zone, northeastern Erbil City, Kurdistan Region (N-Iraq). Lithologically, section is about 23.5 m comprised thick to massive bedded brecciated grey dolomitic limestone lower middle parts interbedding medium beds yellow calcareous shale upper ...

Journal: :Geosciences 2022

The petroleum industry has always been pursuing highly exploitable gas fields, which are often hosted in carbonate rocks. However, carbonates heterogeneous and show different fabrics structures as the result of sedimentation various environments, subsequent diagenesis deformation. In this study, a multi-scale multidisciplinary approach performed on classical reservoir rocks from subsurface Hybl...

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