Open AccessWeathering geochemistry and Sr‐Nd fingerprints of equatorial upper Nile and Congo muds
Author(s) -
Garzanti Eduardo,
Padoan Marta,
Setti Massimo,
Najman Yani,
Peruta Luigi,
Villa Igor M.
Publication year - 2013
Publication title -
geochemistry, geophysics, geosystems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.928
H-Index - 136
ISSN - 1525-2027
DOI - 10.1002/ggge.20060
Subject(s) - geology , geochemistry , weathering , sorting , east african rift , lithology , rift , basalt , silt , sediment , gneiss , source rock , geomorphology , structural basin , metamorphic rock , computer science , programming language
This study investigates processes of sediment generation in equatorial central Africa. An original, complete and integrated mineralogical‐geochemical database on silt‐sized sediments derived from different parent rocks (basalt, granite, gneiss, metapsammite, sandstone) along the East African Rift from 5°S in Tanzania to 5°N in Sudan is presented and used to assess the incidence of diverse factors controlling sediment composition (source‐rock lithology, geomorphology, hydraulic sorting, grain size, recycling), with particular emphasis on chemical weathering.