Earth Sciences

Special Issue

Archean Metallogeny and Crustal Evolution

  • Submission Deadline: May 20, 2015
  • Status: Submission Closed
  • Lead Guest Editor: Tapan Kumar Baidya
About This Special Issue
Origin of multifarious mineral deposits with crustal evolutionary processes in Archean time has led to prolific earth resources in different parts of the globe viz. North America , Africa, Australia, Greenland, South America, China, Russia, India etc. and it is mainly restricted within the span between 4.0 Ga and 2.5 Ga.

The Archean crustal blocks of the aforesaid areas and others including craton, mobile belt, sedimentary basin and various tectonically active and inactive areas contain quite a good number of ore deposits like iron, manganese, chromium, gold, platinum group elements, titanium, vanadium, nickel, copper, uranium, thorium, rare earths etc. Mineralization of these valuable metals in response to crustal evolutionary processes like, magmatism, metasomatism, metamorphism, sedimentary basin development and the sedimentary processes, hydrothermal-pneumatolytic activities and lastly supergene processes is yet to work out in many areas.

This will lead to future exploration of natural resources more scientifically in the Archean terrains with transparent ideas about the nature of mineralization, localization of the deposits and ultimately proper utilization of natural resources for the mankind, society and the country.

Original contributions in the light of ore geology, structure, petrology, geochemistry correlating with Archean crustal evolutionary processes will be encouraged for this Special Issue.
Lead Guest Editor
  • Tapan Kumar Baidya

    Department of Geological Sciences, Jadavpur University, Kolkata, India

Guest Editors
  • Debasish Roy

    Principal consultant at Silpa Mining and Trading Company, India

Published Articles
  • Gold Mineralisation in Chigargunta Area of the Kolar Schist Belt, South India- A Part of the Archean Greenstone Belt

    Debasish Roy

    Issue: Volume 4, Issue 4-1, July 2015
    Pages: 40-45
    Received: Apr. 23, 2015
    Accepted: May 05, 2015
    Published: Jul. 29, 2015
    DOI: 10.11648/j.earth.s.2015040401.14
    Downloads:
    Views:
    Abstract: Gold mineralisation is reported for the first time in ‘Champion gneiss’ (quartzo-feldspathic schist) a felsic unit,in the eastern sector of the Chigargunta area (Lat: 120 430300N, Long:780 150 000E) of the Kolar schist belt, South India, during 1979-80. Quartzo-feldspathic gneiss and hornblende schist are the predominant rock types of the area. The... Show More
  • Iron and Manganese Mineralization Associated with Archean Greenstone Belt in Joda-Noamundi Sector, Odisha, East Indian Shield

    R. Ghosh , D. Chakraborty , M. Halder , T. K. Baidya

    Issue: Volume 4, Issue 4-1, July 2015
    Pages: 31-39
    Received: May 04, 2015
    Accepted: Jul. 06, 2015
    Published: Jul. 29, 2015
    DOI: 10.11648/j.earth.s.2015040401.13
    Downloads:
    Views:
    Abstract: Iron and manganese mineralization in the Joda-Noamundi sector is associated with Banded Iron Formation of the Archean Iron Ore Group of rocks (3.5-3.0 Ga).Both Mn and Fe mineralization is stratiform and stratabound. In the Noamundi basin the estimated reserve of Fe and Mn -ores are 3.3 Gt and 130 Mt respectively. The Fe and Mn-mineralization are al... Show More
  • Titaniferous Magnetite Deposits Associated with Archean Greenstone Belt in the East Indian Sheild

    Riya Mondal , Tapan Kr. Baidya

    Issue: Volume 4, Issue 4-1, July 2015
    Pages: 15-30
    Received: May 04, 2015
    Accepted: May 07, 2015
    Published: Jul. 29, 2015
    DOI: 10.11648/j.earth.s.2015040401.12
    Downloads:
    Views:
    Abstract: In the East Indian Shield, occurrence of titaniferous magnetite deposits associated with the Archean Greenstone belt occur in Kumhardubi, Betjharan and Nuasahi areas of Odisha and Dublabera area of Jharkhand. The ore bodies comprise lenses, veins, bands and patches within gabbroic rocks. Petrogenetic studies have revealed the primary and secondary ... Show More
  • Archean Metallogeny and Crustal Evolution in the East Indian Shield

    Tapan Kumar Baidya

    Issue: Volume 4, Issue 4-1, July 2015
    Pages: 1-14
    Received: Mar. 20, 2015
    Accepted: Mar. 26, 2015
    Published: Jul. 29, 2015
    DOI: 10.11648/j.earth.s.2015040401.11
    Downloads:
    Views:
    Abstract: East Indian Shield bears the evidences of Archean metallogenic and crustal evolution like the other major shield areas of the world. The primordial continental crust in the form of more silicic bodies were floating like metallurgical slags over the hotter and denser ultramafic-mafic lithosphere (UM-ML) before 3800 Ma. Earliest sediments, now repres... Show More