GEOLOGY OF OSO EDDA AND ITS ENVIRONS

Ndulue, Christopher (2018) GEOLOGY OF OSO EDDA AND ITS ENVIRONS. Other thesis, Godfrey Okoye University Ugwuomu-Nike, Enugu.

	Text XT PROJECT INTRO (Autosaved).docx Download (14MB)
	Image image20.jpeg Download (66kB)
	Image image15.jpeg Download (530kB)
	Image image25.jpeg Download (84kB)
	Image image4.jpeg Download (55kB)
	Image image29.jpeg Download (112kB)
	Image image24.jpeg Download (55kB)
	Image image9.jpeg Download (306kB)
	Image image16.jpeg Download (425kB)
	Image image1.jpeg Download (147kB)
	Image image2.jpeg Download (498kB)
	Image image6.png Download (2MB)
	Image image28.jpeg Download (216kB)
	Image image17.jpeg Download (525kB)
	Image image26.jpeg Download (96kB)
	Image image23.jpeg Download (55kB)
	Image image30.png Download (3MB)
	Image image14.jpeg Download (225kB)
	Image image7.jpeg Download (1MB)
	Image image12.png Download (1MB)
	Image image21.jpeg Download (59kB)
	Image image3.jpeg Download (45kB)
	Image image18.jpeg Download (258kB)
	Image image22.jpeg Download (70kB)
	Image image19.jpeg Download (63kB)
	Image image13.png Download (1MB)
	Image image11.jpeg Download (390kB)
	Image image8.jpeg Download (420kB)
	Image image5.jpeg Download (46kB)
	Image image27.jpeg Download (571kB)
	Image image10.jpeg Download (114kB)

Abstract

Oso Edda and environs is located within the flank of the Afikpo Basin and detailed geologic mapping was done in other to determine the various stratigraphic framework using the basic field and laboratory procedures. Field observations on exposed outcrops indicated that the study area consists of three basic lithologic units based on the general orientation of the rocks, sample identification and structural observations. These three units are all dipping southeastly towards the centre of the basin. The basal older Unit (Unit 1) is an interbedding of a highly indurated slaty cleavaged shale, calcareous rock and sand stone respectively, whose depositional environment is believed to be shallow marine based on the micro paleontologic and palynological evidence obtained from the shale bed. The shales are fractured and the careous rock is highly jointing showing an extesional type of deformation. This unit is dipping in a SSE direction whose average dip is about 760. It is thought to be affected by a kind of dynamothermal early metamorphism evidenced by high orientation, cleavage structure and baking, jointing and possibly folding. Unit 2 is generally made up of interbedding of coarse grained, poorly sorted arkosic to sub arkosic sandstones and laminated planar crosss bedded siltstone and mud which has a sallower dipping orientation of about 250. Pebbles were also seen within the unit. The general depositional environment of the unit is fluvia from laboratory studiesl which is river dominated and subtidal environment whose energy of deposition is considered to be relatively low to very low. Unit 3 is the linear sandstone ridge that trends in the NE-SW direction which is thought to be an extention of the Vaious ride sections seenwithin the Afikpo basin belonging to the Amaseri sandstone. The ridgee is characterize by a coarsining upward ssandstone sequence. The base of the sandstone is a silty sandstone deposited in oxic environment while the top of the ridge is a trough cross bedded sandstone being dominated by a stormy environment. Most of the Units are mostly weathered as evidenced by structures associated by weathering like spheroidal weathering, pot holes and isolated large boulders. The age of the study area is that both Unit 1 and Unit 2 Upper Cenomanian-Middle Turonian in age which is general known as the Eze Aku Shale based on the palynological studies of the shales and Unit 3 is the Upper Turonian Amaseri Sandstone. They are generally referred to as the Age Group

Item Type:	Thesis (Other)
Subjects:	L Education > L Education (General) Q Science > Q Science (General)
Divisions:	Faculty of Natural and Applied Sciences
Depositing User:	Mr Christopher Ndulue
Date Deposited:	09 Oct 2018 07:53
Last Modified:	09 Oct 2018 07:53
URI:	http://eprints.gouni.edu.ng/id/eprint/881

Actions (login required)

View Item