Thu, 20 Sep 2018 20:53:04 GMT
2003 Vol.28 No.2
The sedimentology of the Northwestern Sudan consists of lower, middle and upper cycles. The lower and upper cycles are composed of intercalated fluvial and shallow marine facies, whereas the middle cycle consists entirely of fluvial and glaciofluvial facies. The petrographic analysis shows that the lower and upper cycles consist of quartz and lithic arenite sandstones, whereas the middle cycle consists of arkosic and lithic arenite sandstones. The lower and upper cycle sandstones reflect derivation mainly from recycled orogens with minor contribution from craton interior provenances. However, the middle cycle sandstones indicate derivation from basement uplift, transitional and mainly recycled orogens provenances.
Keywords：glaciofluvial, recycled orogen, marine facies
Copyright Copyright 2013-2015 earth science online information network room website maintenance: XT
Address: China University of Geosciences "Earth Sciences" editorial department postcode: 430074
Phone: 027-67885075 Fax: 027-67885075