The Late Cretaceous mineralization and magmatism of the Sofia goldbearing cluster, Amur Region

DOI: 10.47765/0869-7175-2025-10008

Authors

  • V. A. STEPANOV
    Scientific Research Geotechnological Center (NIGTC), Petropavlovsk-Kamchatskiy

    доктор геолого-минералогических наук, главный научный сотрудник  

  • A. V. MELNIKOV
    Institute of Geology and Environmental Management (IGiP) FEB RAS, Blagoveshchensk

    кандидат геолого-минералогических наук, ведущий научный сотрудник  

Keywords:

ore-placer cluster, isotopic age, intrusive complex, mineral deposit, native gold

Abstract

The geological structure, gold mineralization, and gold placers of the Sofia gold-bearing cluster confined to the eastern flank of the Amur province are described. It has been distinguished that the root sources of the rich placers of the Sofia cluster are represented by the ore deposits and manifestations of the gold-quartz formation. It is shown that the gold mineralization is spatially and genetically related to granitoid intrusions of the Badzhal-Dussealin complex. Geological data and isotopic determinations indicate the Late Cretaceous age of the intrusions of the Badzhal-Dussealin complex and the golden mineralization of the Sofia cluster.

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Published

2025-06-27

How to Cite

СТЕПАНОВ ВИТАЛИЙ АЛЕКСЕЕВИЧ, & МЕЛЬНИКОВ АНТОН ВЛАДИМИРОВИЧ. (2025). The Late Cretaceous mineralization and magmatism of the Sofia goldbearing cluster, Amur Region: DOI: 10.47765/0869-7175-2025-10008. Otechestvennaya Geologiya, (2-3). Retrieved from https://og.tsnigri.ru/index.php/main/article/view/267

Issue

No. 2-3 (2025)

Section

Metalliferous and nonmetalliferous mineral deposits