LIFE AS A GEOLOGIST, THE HURDLES… ADVENTURE AND DISCOVERIES

in OCD2 months ago

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It sounds awful always reading from books without seeing with the eyes!!
Various changes ranging from physical; chemical to biological has subjected the earth and altered the natural sequential order of deposition of sediments.

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Does the above scenario seem familiar? Do you consider it real? If so, take a moment to analyze the situation. What do you think?

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I try really hard to imagine the mystery behind the origin of basins as a geologist; here comes a day, looking forward to the reality of our earth as a planet in the field, observing different topographies, geological features, textures and structures, rock types and the geological activities that have taken place over time. A day never to be forgotten!!

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Guess what? “A Trip to the Anambra Basin”, Nigeria

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This basin is a sedimentary succession that is located at the southern end of the Benue trough which is accumulated by Nkporo shale and younger sediments that extends southwards to the Niger Delta basin.

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Never in my life did I believe I could sojourn through some part of this basin like the Igbo Etiti, Nkpolgu, Akpugo, Aku, Ezedike, Ukpata, Udueme and part of Ihe-Nze areas of Enugu state in Nigeria.

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During this trip, I went along side with my colleagues; strong and energetic as they was, I never felt reluctant! It was a journey with a whole basket of fun...!

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What do you think would have led to the tilting and faulting of sediments in this basin?

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A question I asked myself! Hardly did I know there was an over-ridding effect of tectonism on the various outcrops. From Tracing through the exposed outcrops and taking stratigraphic sequence and thicknesses with lithologic similarities; I discovered that the area was dominated by major sediments of two well-defined lithologic stack where the individual host bed differ from a succeeding bed via grain sizes, geometry and colour.

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During the course of this journey...the great “Ohene Hill” at Akpugo Ezedike, a very massive exposure of different rock lithologies comprising a basal grey-brown claystone unit of 33 m thick and lying beneath it was a ferrugenized sandstone unit of similar thickness hosting a dark thick shale estimated to be above 3m and dipping Northwesterly.

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Was it really stressful? Yes! to me, it was but a lesson, an adventure and a good and wonderful experience to explore and discover. No more doubts on what I read from books!

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That was a hobby for me! Imagine facing the hurdles under the hot sun; I felt nature and creation!!! I felt life in a misery!!! Not just defeating the struggles; I went back home with a basket filled with beautiful and interesting gift of nature.

What will this be? “The rock and sediment samples”

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These…! A blue print to the origin, formation and depositional environment of the basin.

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