Benutzer:Shi Annan/Anambra Basin
Anambra Basin is one of the energy-rich inland sedimentary basins in southern Nigeria.[1]:153 It is a nearly triangular shaped embayment covering about 3000sqKm with a total sedimentary thickness of approximately 9km.[2]:2[3]:25 [4]
Location
Anambra basin is situated west of the lower Benue Trough and often considered newest formation from the Benue Trough.[5] The basin is bounded to the south by the Niger Delta province hinge line.[6] It extends north-westward into the Niger Valley, northward to the Jos massif and north-eastward into Lafia.[6] The eastern and western limits of the basin are defined by the Abakaliki Anticlinorium and Ibadan massif, respectively.[6]:193 [1]:145
Energy Resources
The basin habours the largest deposit of coal and lignite in Nigeria.[2]:2 Coal mining in Nigeria started in Enugu within the basin. Albert Kitson discovered Coal in 1909 at the Udi Ridge, Enugu; turning the region into a strategic British business area.[7][8] Some of the coal mines operated in Enugu included Ogbete, Ribadu, Onyeama, Okaba and Okpara.[8]
Anambra basin could be next to its underneath Niger Delta basin in hydrocarbon potentials.[1]:153 The basin holds an estimated gas potential in the region of 10 trillion cubic feet (tcf).[9] Ugwuoba gas fields near Awka, and Igbariam gas fields near Onitsha - an economic hub in the region, contain some of the successfully explored gas wells in the basin.[10] Some of the wells by Shell/BP in the basin include Igbariam-1 and Ajire-1, and Akukwa-1 and Akukwa-2 operated between 1938 – 1939 in Ugwuoba.[9][10] Crude oil deposits have also been reported in some parts of Anambra basin,[2]:1 with estimated 1 or more billion barrels in reserves.[3]:16[9][11]
References
Vorlage:Major African geological formations
- ↑ a b c Anthony .S. Ekine; K. M. Onuoha: Burial History Analysis and Subsidence in the Anambra Basin, Nigeria. In: Department of Physics University Of Port Harcourt, Nigeria; Department of Geology University of Nigeria, Nsukka, Nigeria. www.ajol.info, 2008, abgerufen am 20. September 2016.
- ↑ a b c Olubayo Leye Babatunde: The main oil source formations of the Anambra Basin, Southeastern Nigeria. In: Geology Department, University of Ibadan, Nigeria. www.searchanddiscovery.com, abgerufen am 22. Juni 2016.
- ↑ a b Iheanacho Princewill Ugochukwu: Subsurface Evaluation of Source Rock and Hydrocarbon Potential of the Anambra Basin, South Eastern Nigeria. In: Dissertation.com Boca Raton, Florida, USA. www.bookpump.com, abgerufen am 22. Juni 2016.
- ↑ Ola-Buraimo A Olatunji: Biostratigraphy And Paleoenvironment Of The Coniacian Awgu Formation In Nzam-1 Well Anambra Basin Southeastern Nigeria. In: INTERNATIONAL JOURNAL OF SCIENTIFIC & TECHNOLOGY RESEARCH. www.ijstr.org, März 2013, abgerufen am 12. Juli 2016.
- ↑ Obaje Nuhu George, Nuhu George Obaje: Geology and Mineral Resources of Nigeria. Springer, 2009, ISBN 3-540-92684-4, 4 - The Benue Trough, S. 57 (google.ca).
- ↑ a b c Shirley O Odunze; Gordian C. Obi: Sedimentology and sequence stratigraphy of the Nkporo Group (Campanian–Maastrichtian), Anambra Basin, Nigeria. In: Department of Geology, Anambra State University, Uli, Nigeria. www.sciencedirect.com, April 2013, abgerufen am 18. September 2016.
- ↑ Coal Mine in Enugu: The Black Gold. In: Enugu State Tourism Board. enugustatetourismboard.com, abgerufen am 18. September 2016.
- ↑ a b From 1909: Sad tale of Enugu coal industry. In: Francis Igata. www.vanguardngr.com, 30. März 2016, abgerufen am 18. September 2016.
- ↑ a b c Onshore OPL-907. In: GEC Petroleum Development Company. www.gecpetroleum.com, abgerufen am 22. Juni 2016.
- ↑ a b Onshore OPL-917. In: GEC Petroleum Development Company. www.gecpetroleum.com, abgerufen am 18. September 2016.
- ↑ Anambra Basin. In: Seven Energy. www.sevenenergy.com, abgerufen am 22. Juni 2016.