Causes of Silicification, Tension Joints and Different Degrees and Directions of Dips of Nubian Sandstones Outcrops in Khartoum State Omer

Omer Elbadri; Elgizouli Ahmed Hamid

dc.contributor.author	Omer Elbadri
dc.contributor.author	Elgizouli Ahmed Hamid
dc.date.accessioned	2026-07-29T07:50:25Z
dc.date.available	2026-07-29T07:50:25Z
dc.date.issued	2017-06
dc.identifier.issn	1858- 7674 (Online)
dc.identifier.issn	1858- 6295 (Print)
dc.identifier.uri	http://localhost:8080/xmlui/handle/123456789/574
dc.description.abstract	Nubian Sandstone outcrops north of Khartoum State are arenaceous with fossils and horizontal, while in central and south are ferruginous, argillaceous, dipping in different directions, with tension joints and no fossils. Field work targeted all outcrops in the study area; methods include description, measurements, and petrographic analysis. The present work referred silicification and Petrified wood formed as a result of hydrothermal alteration by silica derived from adjacent basement complex.Different directions of dips and tension joints is attributed to intrusion of Late Tertiary basaltic rocks in central area.	en_US
dc.language.iso	en	en_US
dc.subject	arenaceous sandstone	en_US
dc.subject	silicified fossils	en_US
dc.subject	Hudichert	en_US
dc.subject	tension joints	en_US
dc.subject	dips and intrusion.	en_US
dc.subject	Khartoum State	en_US
dc.subject	Geology	en_US
dc.subject	علوم الارض	en_US
dc.title	Causes of Silicification, Tension Joints and Different Degrees and Directions of Dips of Nubian Sandstones Outcrops in Khartoum State Omer	en_US
dc.type	Article	en_US