Scholarlink

Abstract <p>A 3D density model for the lithosphere of Upper Priamurye, which extends to a depth of 130 km, was constructed based on the anomalous gravity field. The lithospheric mantle displays a banded structure defined by a series of alternating relatively low and high density zones. A series of sublatitudinal zones of low-density mantle are identified, which are spatially associated with Cretaceous volcanoplutonic and plutonic belts. Low-density areas are identified with paleomagmatic chambers and mantle transformation zones of the stage. A spatial relationship is established between gold mineralization in the region and the identified zones of low-density mantle. Zones of higher-density lithosphere are believed to primarily reflect accretionary wedges of the Mongol–Okhotsk belt and remnants of oceanic lithosphere at depth.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Density Structure of the Lithosphere in upper Priamurye

  • 期刊论文

  • 发表日期：

    2026年7月31日

查看全文
  • M. Yu. Nosyrev,
  • A. N. Didenko,
  • G. Z. Gil’manova

摘要

Abstract

A 3D density model for the lithosphere of Upper Priamurye, which extends to a depth of 130 km, was constructed based on the anomalous gravity field. The lithospheric mantle displays a banded structure defined by a series of alternating relatively low and high density zones. A series of sublatitudinal zones of low-density mantle are identified, which are spatially associated with Cretaceous volcanoplutonic and plutonic belts. Low-density areas are identified with paleomagmatic chambers and mantle transformation zones of the stage. A spatial relationship is established between gold mineralization in the region and the identified zones of low-density mantle. Zones of higher-density lithosphere are believed to primarily reflect accretionary wedges of the Mongol–Okhotsk belt and remnants of oceanic lithosphere at depth.