Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
  Climatic and glacial impact on erosion patterns and sediment provenance in the Himalayan rain shadow, Zanskar River, NW India

Jonell, T. N., Carter, A., Böning, P., Pahnke, K., & Clift, P. D. (2017). Climatic and glacial impact on erosion patterns and sediment provenance in the Himalayan rain shadow, Zanskar River, NW India. GSA Bulletin, 129, 820-836.

Item is

Basisdaten

einblenden: ausblenden:
Genre: Zeitschriftenartikel

Dateien

einblenden: Dateien
ausblenden: Dateien
:
Boening_03_4.pdf (Verlagsversion), 3MB
 
Datei-Permalink:
-
Name:
Boening_03_4.pdf
Beschreibung:
-
OA-Status:
Sichtbarkeit:
Eingeschränkt ( Max Planck Society (every institute); )
MIME-Typ / Prüfsumme:
application/pdf
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Jonell, Tara N. , Autor
Carter, Andrew , Autor
Böning, Philipp1, Autor           
Pahnke, Katharina1, Autor           
Clift, Peter D. , Autor
Affiliations:
1Max Planck Research Group Marine Isotope Geochemistry, Max Planck Institute for Marine Microbiology, Max Planck Society, ou_2481707              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: Erosion is a key step in the destruction and recycling of the continental crust, yet its primary drivers continue to be debated. The relative balance between climatic and solid Earth forces in determining erosion patterns and rates, and in turn orogenic architecture, is unresolved. The monsoon-dominated frontal Himalaya is a classic example of how surface processes may drive focused denudation and potentially control structural evolution. We investigate whether there is a clear relationship between climate and erosion in the drier Himalayan rain shadow on the periphery of the Tibetan Plateau, where a coupled climate-erosion relationship is less clear. We present a new integrated data set combining bulk petrography, geomorphometric analysis, detrital U-Pb zircon geochronology, and bulk Nd and Sr isotope geochemistry from modern river sediments that provides constraints on spatial patterns of sediment production and transport in the Zanskar River. Zanskar River sands are dominated by Greater Himalayan detritus sourced from the glaciated Stod River catchment, which represents only 13% of the total basin area. Prevalent zircon peaks from Cambrian–Ordovician (440–500 Ma) and Mississippian–Permian (245–380 Ma) units indicate more abundant pre-Himalayan granitoids in the northwest Indian Himalaya than in the central and eastern Himalaya. Erosion from the widely exposed Tethyan Himalaya, however, appears modest. Spatial patterns of erosion do not correlate with highest channel steepness. Our data demonstrate that Zanskar differs from the monsoon-soaked frontal Himalaya and the arid, extremely slow-eroding Tibetan orogenic interior in that focused erosion and sediment production are driven by glaciers. Subsequent remobilization of glacially derived sediments is likely controlled by monsoonal rainfall, and we suggest sediment reworking plays an important role. These data support a strong climatic control on modern orogenic erosion in the Himalayan rain shadow on the periphery of the Tibetan Plateau.

Details

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 2017-07-01
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: -
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: GSA Bulletin
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 129 Artikelnummer: - Start- / Endseite: 820 - 836 Identifikator: -