Geochemistry of Lower Sandstone - Bekele, Barsisa
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The Adigrat Sandstone is found in the Blue Nile Basin, North Western plateau of Ethiopia.It was formed because of jurassic marine transgression came from the south-east (Daniell, 1974. It has been analyzed to determine their provenance composition, paleoweathering and paleoclimatic scenarios. Samples of this sandstone are slightly variable in composition and on QFL diagram; most o the samples are plotted in subarkose and lithic subarkose fields. The CIA, PIA and CIW values for this sandstone and the A CN K diagram agreeably suggest that source rocks experienced intense chemical weathering…mehr

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Produktbeschreibung
The Adigrat Sandstone is found in the Blue Nile Basin, North Western plateau of Ethiopia.It was formed because of jurassic marine transgression came from the south-east (Daniell, 1974. It has been analyzed to determine their provenance composition, paleoweathering and paleoclimatic scenarios. Samples of this sandstone are slightly variable in composition and on QFL diagram; most o the samples are plotted in subarkose and lithic subarkose fields. The CIA, PIA and CIW values for this sandstone and the A CN K diagram agreeably suggest that source rocks experienced intense chemical weathering under hot and humid tropical to sub-tropical climate. Mineralogical evidence suggests that plutonic and metamorphic rocks were major contributing source rocks. However, recycling of the sediment is also an inevitable.
Autorenporträt
I were studied my BSc and MSc degree at University of Gondar and Addis Ababa University Ethiopia respectively. Currently i am teaching at School of Earth and environmental Sciences, Wollega University.