skip to main content
Idioma:
Primo Search
Clear Search Box
Search in: Busca Geral
Busca Avançada
Busca por Índices

The evolution of a terrace sequence along the Manas River in the northern foreland basin of Tian Shan, China, as inferred from optical dating

Gong, Zhijun ; Li, Sheng-Hua ; Li, Bo

Geomorphology (Amsterdam, Netherlands), 2014-05, Vol.213, p.201-212 [Periódico revisado por pares]

Amsterdam: Elsevier B.V

Texto completo disponível

Citações Citado por
  • Título:
    The evolution of a terrace sequence along the Manas River in the northern foreland basin of Tian Shan, China, as inferred from optical dating
  • Autor: Gong, Zhijun ; Li, Sheng-Hua ; Li, Bo
  • Assuntos: Basins ; Dating ; Deformation ; Earth sciences ; Earth, ocean, space ; Exact sciences and technology ; Freshwater ; Geomorphology ; Geomorphology, landform evolution ; Global Positioning System ; Incision ; Manas River ; Marine and continental quaternary ; OSL dating ; Rivers ; Surficial geology ; Tectonics ; Tectonics. Structural geology. Plate tectonics ; Terrace ; Terraces ; Tian Shan
  • É parte de: Geomorphology (Amsterdam, Netherlands), 2014-05, Vol.213, p.201-212
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: The Tian Shan range lies in the actively deforming part of the India–Asia collision zone. The uplift rate and deformation pattern of the Tian Shan are important for understanding the dynamics of crustal deformation in the region. The river terraces in northern Tian Shan provide key records of past changes in climate and/or regional tectonics. In this study, a terrace sequence along the Manas River in a tectonically active zone in the northern foreland basin of Tian Shan is investigated. Six river terraces were identified and dated using optically stimulated luminescence (OSL). The results show that the six terraces were abandoned at ~0.5ka, ~1.4ka, ~3.1ka, ~4.0ka, ~12.4ka and ~19.9ka, respectively. Together with high resolution Global Positioning System (GPS) measurements on the terrace treads, the fluvial history of Manas River is reconstructed. From ~20ka to ~4.8ka, the height of the fluvial bed of Manas River decreased at an average rate of 2.2±0.6mm/yr. From ~4.8ka to the present, the height of the fluvial bed decreased at an average rate of 13.5±0.6mm/yr, corresponding to intensified incision of Manas River during the late Holocene. This accelerated incision is very likely caused by the tectonic forces rather than climatic influences alone, suggesting that the tectonic uplift activity was significantly intensified since ~4.8ka in the northern piedmont of Tian Shan. Other controlling factors on the incision of Manas River are also discussed. •Six terraces were identified along the Manas River in the northwestern China.•The terraces along the Manas River were dated by OSL dating.•The incision rates of the Manas River are different during the last 20ka.
  • Editor: Amsterdam: Elsevier B.V
  • Idioma: Inglês
Links
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.