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  1. Localized zone of fracture-filling minerals
    Vein deposits are a type of mineral deposit that consist of a localized zone of fracture-filling minerals. They typically form within fractures or fissures in rock and are often found in or near fault zones, where rocks have been fractured and deformed.

    Vein deposits - Geology Science

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    What is the mineralogy of vein deposits?
    The mineralogy of vein deposits is variable and dependent on the source and composition of the hydrothermal fluids, the host rock, and the conditions of temperature and pressure. Vein deposits can contain a wide range of minerals, including sulfides, oxides, carbonates, and silicates.

    Vein deposits - Geology Science

    geologyscience.com
    What causes thick veins and how to get rid of them?

    Dr. Himanshu J. Vats

    Doctor of Medicine (MBBS) · 1.5 years of exp

    Thick veins can be caused by a number of factors, including genetics, age, hormonal changes, obesity, pregnancy, and occupations that require prolonged standing or sitting. The veins in the legs are particularly susceptible to becoming thick or bulging due to the increased pressure placed on them when standing or sitting for extended periods. There are several options for getting rid of thick veins, depending on their severity. Conservative measures include wearing compression stockings, losing weight, exercising regularly, avoiding prolonged sitting or standing, and elevating the legs. In more severe cases, medical interventions such as sclerotherapy, laser therapy, radiofrequency ablation, or vein stripping may be necessary. These procedures can help to close off or remove the affected veins, improving both the appearance and function of the affected area. It's important to note that while these treatments can be effective, they may not be permanent and new veins may develop over time. It's also important to consult with a medical professional to determine the best course of treatment for your individual case.
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    What minerals make up vein deposits?
    The minerals that make up vein deposits are typically deposited from hydrothermal fluids that have migrated through the rock, often from deep within the Earth’s crust. These fluids can be rich in dissolved minerals, which can precipitate out of the fluid and form vein deposits as the fluids cool and react with the surrounding rock.

    Vein deposits - Geology Science

    geologyscience.com
    What type of mineralization occurs in vein-type deposits?
    In many vein-type deposits, veins occur outwards and upwards, and commonly slightly post-date, stockwork mineralization spatially and geneti- cally related to a central "porphyry" intrusion (e.g., Butte, Montana: Meyer et al., 1968; E1 Salvador, Chile: Gustafson and Hunt, 1975; Hollinger-McIntyre mine, Timmins, Ontario: Mason and Melnik, 1986).

    The structure of shear-related, vein-type gold deposits: A review

    sciencedirect.com
    What type of layering occurs in mineralized veins?
    Layering Most mineralized veins show some type of layering. Crusts on vein contacts with wall rocks are particularly common (Figs. 30c and 31). Progressive infilling of open fractures by suc- cessive layers of texturally and/or mineralogi- cally different precipitate results in crustified veins (Fig. 32a).

    The structure of shear-related, vein-type gold deposits: A review

    sciencedirect.com
    What causes mineralized veins in hydrothermal quartz?
    Herein, the enrichment in Ge observed in hydrothermal quartz from greisen and ore-bearing quartz veins suggest that greisenization and the formation of mineralized veins result from the circulation of magmatic fluids, in which Ge was concentrated during the progressive crystallization of the Panasqueira granite.

    Genetic relationship between greisenization and Sn-W mineralizations in

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  3. GeoScienceWorld
    https://pubs.geoscienceworld.org › sgf › bsgf › article

    Genetic relationship between greisenization and Sn-W …

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  4. Geology Science
    https://geologyscience.com › ... › vein-deposits

    Vein deposits - Geology Science

  5. Studies of mineralized vein deposits
    ScienceDirect
    Epithermal mineralization of the Bonanza-Sandy vein system, Masara Gold District, Mindanao, Philippines
    The Masara Gold District in southeastern Mindanao island is an area of prolific hydrothermal copper and gold mineralization. This study documents the mineralization characteristics of the NW-trending Bonanza-Sandy epithermal veins to constrain possible hydrothermal fluid sources and ore-forming mech...
    Published: 2020/12/01
    Cited By: 0
    Keywords: Masara Gol…
    ScienceDirect
    Review Shear-zone-related gold mineralization in quartz-carbonate veins from metamafic rocks of the BIF-hosted world-class Cuiabá deposit, Rio das Velhas greenstone belt, Quadrilátero Ferrífero, Brazil: Vein classification and structural control
    The Cuiabá deposit, located in the Quadrilátero Ferríferro district (QF) in the southeastern part of the Minas Gerais state, is the largest underground mine in Brazil (5.78 Moz resources of 10.26 g/t Au − 1.18 Moz of ore reserves and 6 Moz of overall production). This world-class orogenic gold depos...
    Published: 2020/12/01
    Cited By: 0
    DOI: 10.1016/j.oregeor…
    ScienceDirect
    Research paper The structure of shear-related, vein-type gold deposits: A review
    The structure of vein-type gold deposits is defined by the shapes and geometrical relationships of mineralized bodies, the form of the mineralization making up these bodies, and the sequence of vein-forming events. Most mineralized zones occur within, or are spatially associated with shear zones, es...
    Published: 1989/03/01
    Cited By: 0
    Page Count: 43
    ScienceDirect
    Characteristics of the gold-bearing and barren quartz veins at the Zaylik-Sarilar epithermal deposit, Ahar-Arasbaran Zone, NW Iran: Evidence from mineralogy, alteration, texture and fluid inclusion
    The Zaylik-Sarilar epithermal deposit is located 35 km southeast of Ahar in the Ahar-Arasbaran Zone in the Alborz-Azerbaijan Magmatic Belt, NW Iran. Exposed rocks in the Zaylik-Sarilar deposit are mainly composed of Eocene volcanic rocks and Miocene dacite-rhyodacite that are intruded by younger int...
    Published: 2023/03/01
    Cited By: 0
    Keywords: Gold-beari…
  6. Earth Science Australia
    http://earthsci.org › mineral › mindep › v…

    Vein Deposits - Earth Sci

    Learn about the formation, characteristics, mineral associations and exploration of vein deposits, which are narrow zones of mineralization in fractures, faults or shear zones. Find out how vein deposits host valuable ore minerals such as …

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    Vein
    Minerals
  7. bsgf.fr
    https://www.bsgf.fr › articles › bsgf › full_html

    Genetic relationship between greisenization and Sn–W ... - BSGF

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    Publish Year:2021
    Portugal
  8. Springer
    https://link.springer.com › article

    Orogenic lode-gold deposits and listvenization processes in the El ...

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    Eastern Desert
    Environmental Earth Sciences

  9. Images of mineralized VEIN DEPOSITS

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  10. ScienceDirect
    https://www.sciencedirect.com › science › article › pii

    Epithermal mineralization of the Bonanza-Sandy vein system, …

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    Publish Year:2020
    Bonanza
  11. Springer
    https://link.springer.com › article

    Genesis of the vein-type tungsten mineralization at

    The vein-type tungsten deposit at Nyakabingo in the central Tungsten belt of Rwanda is located in the eastern flank of the complex Bumbogo anticlinal structure. The host rock is composed of alternating sequences of sandstones, …

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    Crosscutting Veins
    Publish Year:2016
    Central Africa
  12. ScienceDirect
    https://www.sciencedirect.com › science › article › pii

    Shear-zone-related gold mineralization in quartz-carbonate veins …

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    Publish Year:2020
    Quartz Carbonate Veins
    Rocks and Stones
    Greenstone belt
  13. GeoScienceWorld
    https://pubs.geoscienceworld.org › gsw › lithosphere › ...

    Quartz Vein Formation and Deformation during Porphyry Cu …

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    Vein
    Minerals
  14. ScienceDirect
    https://www.sciencedirect.com › science › article › pii

    The structure of shear-related, vein-type gold deposits: A review

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    Author:C.Jay Hodgson
    Publish Year:1989