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Paper Type	:	Research Paper
Title	:	Sedimentology and Sequence Stratigraphy of the Eocene Nanka Formation (Ameki Group): An Evaluation of Ogbunike Reference Locality in Anambra Basin, South-Eastern Nigeria.
Country	:	Nigeria
Authors	:	Chiaghanam O.I., Chiadikobi, K.C., Ikegwuonwu, O.N., Omoboriowo, A.O.,Onyemesili, O.C., Yikarebogha, Y
	:	10.9790/0990-0230110

Abstract: Sedimentology and Sequence stratigraphic study of Eocene Nanka Formation,situated at a reference locality in Ogbunike south-eastern Nigeria,showed a section made up of ironstone/sandstone and shale, sandstone, sandstone/siltstone and interstratified calcareous clay and shale facies.Palynological analyses on Facie A shows that the presence of monoporitesannulatus ,proxapertitescursus/ operculatus,schizosporisparvus, Homotryblium spp.anddiphysescolligerum suggest a paleoenvironment in a continental shelf,while age diagnosting index palynomorphs species present,suggest a middle Eocene age for the section.

[1]. Ainsworth, R. B. Walker, R. G. (1994).Control of estuarine valley-fill deposition by Fluctuation of relative Sea-level, Cretaceous Bearpaw-Horseshoe Canyon transition, Drumheller, Alberta, Canada. In Incised-valley systems: Origin and Sedimentary Sequences (R. G. Dalrymple R. Boryd, and B. A. Zaitlin, Eds) pp. 159-174. SEMP (Society of sedimentary Geology) Special publication No. 51
[2]. Allen, G. P., and Posamentier, H. W. (1994).TransgressiveFacies and Sequence architecture in mixed tide and wave dominated incised Valleys: example from the Gironde Estuary, France. In Incised valley systems: Origin and sedimentary sequences (R. W. Dalrymple, R. Boyd and B. A. Zaitlin, Eds) SEMP Special Publication 51, pp. 225-240.
[3]. Benkhelil, J., 1989. The Origin and Evolution of the Cretaceous Benue Trough of Nigeria: Journal of Africa Earth Science, V. 8,251-282.
[4]. Blom, M. D. (1991) Systematic Controls of genesis and architecture of allorialsequences: a late Quaternary example. In NUNA Conference on High-Resolution Sequence Stratigraphy (D. A. Leckie, H. W. Posamentier and R. W. Lovell Eds.) pp. 7-8. Program with Abstracts

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Paper Type	:	Research Paper
Title	:	Source Rock Potential and Thermal Maturity of the Eocene Nanka Formation (Ameki Group) In Anambra Basin: An Appraisal of Ogbunike Reference Locality, South Eastern Nigeria
Country	:	Nigeria
Authors	:	Chiaghanam O. I. Chiadikobi, K. C. Ikegwuonwu, O. N. Omoboriowo, A. O. Onyemesili, O. C., 6Yikarebogha, Y.
	:	10.9790/0990-0231117

Abstract: Source rock potential and thermal maturity of the Eocene Nanka Formation of Ogbunike,south eastern Nigeria was assessed in this research work.The rock-eval pyrolysis result recorded a value range of 0.04 to 0.11,0.44 to 1.32 and 0.44 to 0.49 forS1, S2 and S2/S3respectively. Production Index (PI) and Hydrogen Index (HI) results have a value range of 0.08 and 11.83 to 55.00 respectively. TheSoluble Organic Matter (SOM) has an average value of 0.013 wt. %(127.55ppm), while Total organic carbon (Toc) recorded a value range of 2.40wt. % to 4.50 wt. %. Thermal Alteration index (TAI) of +1 to -2 and Vitrinite reflectance (Ro %) of 0.2% to 0.3% was recorded. Particulate organic matter of the samples was also analysed. The results suggests that the studied area is a type 1VKerogen,immatured stage of thermal maturity, fair source bed,but has a high organic carbon that can generate oil
Keywords: Rock Eval pyrolysis, Hydrocarbon, Nanka Formation, Kerogen&Anambra Basin.

[1]. Adegoke, O.S., 1969. Eocene stratigraphy of Southern Nigeria. Colloquesur 1 Eocene, III. Bureau de RechercheGeologiques et minieres, vol. 69, 20-48.
[2]. Avbovbo, A.A. 1978. Tertiary Lithostratigraphy of the Niger Delta AAPG Bulletin, Vol. 62,295-306.
[3]. Babatunde, O.L., 2010.The main oil source Formations of the AnambraBasin, South-eastern Nigeria.AAPG International Convention &Exhibition,September 12-15, Canada

[4]. Benkhelil, J, 1989. The Origin and Evolution of the Cretaceous Benue Trough of Nigeria: Journal of Africa Earth Sciences, Vol. 8, pp. 251-282.
[5]. Chiaghanam, O.I 2008. Lithofacies and Paleoenvironment of the Eocene sediments of Umunya in AnambraNtate, Nigeria Natural and applied science Journal, Vol. 9, No 2, 217-229.

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Paper Type	:	Research Paper
Title	:	Earthquake-Tsunami in South Jogjakarta Indonesia: Potential, Simulation Models, and Related Mitigation Efforts
Country	:	Indonesia
Authors	:	Widjo Kongko , Rahman Hidayat
	:	10.9790/0990-0231822

Abstract: The potential of earthquake-tsunami in South Java is lower than those in South-West of Sumatra. The recent earthquake-tsunami in this area was the "tsunami earthquake" with the relatively slow characteristics of the earthquake and generating greater tsunami. The results of model simulations with limited scenario in South Java showed a significant tsunami affected southern of Jogjakarta's coastal region. To support disaster mitigation and planning of infrastructure development in the southern coastal areas, it is necessary to study the potential earthquake-tsunami disaster and its mitigation efforts using detail and accurate topographic-bathymetric data.
Keywords: South Java, tsunami earthquake, disaster mitigation and infrastructure development, detail and accurate topographic and bathymetry data

[1] Bird, E.C.F. & Ongkosongo, O.S.R., 1980, Environmental Changes on the Coast of Indonesia, The United Nations University, printed in Japan.
[2] Fritz, H., Kongko, W., Moore, A., McAdoo, B., Goff, J., Harbitz, C., Uslu, B., Kalligeris, N., Suteja, D., Kalsum, K., Titov, V., Gusman, A., Latief, H., Santoso, E., Sujoko, S., Djulkarnaen, D., Sunendar, H. & Synolakis, C., 2007. Extreme run-up from the 17 July 2006 Java Tsunami. Geophysical Research Letters, 34(L12602), pp.1-5.
[3] Abidin, H.Z., Andreas, H., Kao, T., Ito, T., Meilano, I., Kimata, F., Natawidjaya, D.H. & Harjono, H., 2009. Crustal deformation studies in Java (Indonesia) using GPS. Journal of Earthquake and Tsunami, 3(2), pp.77-88.
[4] Kongko, W., Suranto, S., Chaeroni, C., Aprijanto, A., Zikra, Z. & Sujantoko, S., 2006. Rapid Survey on Java Tsunami 17 July 2006. Available at: http://ioc3.unesco.org/itic/files/tsunami-Java170706_e.pdf.
[5] ITDB/WLD, 2007. Integrated Tsunami Database for the World Ocean, ver.6.52 of Dec.31 2007, Tsunami Lab. ICMMG SD RAS, Novosibirsk, Russia.

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