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Holocene evolution of the central Red River Delta, Northern Vietnam

lithological and mineralogical investigations

Tanabea,Susumu
Vub, Quang Lan
Hanebuthc, Till J.J.
Ngob, Quang Lan
Kitamurad, Akihisa
Saito, Yoshiki
2006
Univ. Greifswald
Monography
Verlagsversion
Englisch
DOI: https://doi.org/10.23689/fidgeo-197
Tanabea,Susumu; Vub, Quang Lan; Hanebuthc, Till J.J.; Ngob, Quang Lan; Kitamurad, Akihisa; Saito, Yoshiki, 2006: Holocene evolution of the central Red River Delta, Northern Vietnam - lithological and mineralogical investigations. Univ. Greifswald, 121 S., DOI: 10.23689/fidgeo-197.
 
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  • Abstract
The thesis contains 6 chapter and mentions about the influences of sea level change, climate, tectonic into the sedimentary process. The results show that late Pleistocene facies mostly are weathered facies which content gibbsite-kaolinite, limonite. In transgression, facies assemblage includes lagoon, tidal and estuary. The composition are in-situ reworked minerals like illite, gypsum. In regression, facies are shallow marine, prodelta, delta front, distributary lobe, swamp, tidal and beach, channel infill, flood plain, lake. Abundant minerals are named like smectite, illite, chlorite, quartz, feldspar, rock fragments, gypsum.Gypsum is the evaporited mineral easily to be formed in coastal environment of Red River Delta. It is a good indicative mineral for distinguishing the deposits formed in dry season of monsoon regions. Smectite is good indicative mineral for sea environment which mostly related with the transference and low accumulation and new formed in climate with wet and dry periods. Kaolinite-gibbsite is an indicator of strong chemical weathering with high precipitation. The stratigraphy can be divide into trangressive systems tract (10-8.5 cal. kyr BP) and highstand systems tract with aggradational-progradational parasequence set (8.5-6.5 cal. kyr BP) and progradational parasequence set (6.5 cal. kyr BP-today, with subsets 6.5-4.0; 4.0-1.5; and 1.5-0.0 cal. kyr BP). The subsidence process which reflex in accumulation rate regarded to not only sea level change, tectonics but also human impact - dyke build plays the main role to increased sedimentary thickness...
 
Nordvietnam, Holocene sediment, Red River Delta, sea level change
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  • Geologie [755]
Subjects:
Malaiische Halbinsel {Geologie}
Holozän
Ästuarsedimente {Geologie}
Sedimente bestimmter Regionen
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