Review of the geology of mamfe sedimentary basin, SW Cameroon, Central Africa

Abstract

This paper presents a review of the tectonic evolution, stratigraphy, paleontology, hydrogeological aspects and economic geology of the Mamfe basin. The main structures are basement -involved and detached fault and simple symmetrical fold with NE-SW trend. The basin measures 130 km in length and the widest part is about 60 km and a maximum area of 3200 km 2 . The maximum sediment thickness is estimated at 4-7 km and the sedimentary infill includes a lower alluvial fans to fluvial basal conglomerate and conglomeratic sandstone, a middle alternating (cyclic) aqueous to anoxic deep lake bottom black shale and limestone unit and an upper fluvial to transitional deltaic nearshore conglomeratic sandstone unit. The Ostracod fauna from the shale are very similar to the coeval fauna from adjacent Benue trough. The reported fauna have no biostratigraphic significance because of their uncertain age, low diversity, and cosmopolitan distribution during the early Cretaceous. Over 30 salt springs exist across the Mamfe basin with the most concentrated yielding 79 g/L of high quality halite. Several mineral indices (including diamond) have been identify and the geological condition favour the occurrences of hydrocarbon.

Direct Detection of Groundwater Accumulation Zones in Saprock Aquifers in Tectono-Thermal Environments

“…These rocks strike dominantly in the E-W direction with occasional N-S swings. Petters et al [41], and Ndip et al [42] made a comprehensive documentation of the tectonic origin, depositional history, chemical composition, and depositional environment of rocks in the Ikom-Mamfe Embayment.…”

Techniques and Technological Aspects of Palm Oil (<i>Elaeis guineensis</i>) Processing in Cameroon

“…However, recent technological advancements in the palm oil processing sector in Cameroon have popularized continuous flow mini-mills of capacity mostly between 1 and 2 tons FFB/hr. A project by the United Nations Industrial and Development Organization (UNIDO)-the APROCOM-PH project saw the installation of three mini-mills in Sombo (3˚53'N and 10˚42'E) [25] on the Douala-Yaounde highway in the Centre region, Mkpot village near Mamfe located between 5˚30' to 6˚00'N and 8˚15' to 9˚45'E [26], in the South West Region and Tezie-Ngie near Mbengwi (6˚1'N and 10˚0'E) [27] in the North West Region all of capacities 2 ton FFB/hr; and the renovation/upgrade of a 5 ton FFB/hr mill in Green valley plantations in Idenau-Limbe (4˚0'N, 9˚13'E) [27] in the South West Region. These mills have extraction rates of between 18% -20%, comparable to what is obtained in most agro-industrial complexes in the country.…”

Geogenic Imprint on Groundwater and Its Quality in Parts of the Mamfe Basin, Manyu Division, Cameroon

“…The area is made up of mostly farmers, business people and civil servants from almost every ethnic group in Cameroon and some from other countries. The climate in this division is hot and humid and consists of a rainy and a dry season modified by the deviation of the monsoon and the relief of Mount Cameroon (Ndip et al, 2018). The vegetation is dominantly that of the equatorial rain forest, and the drainage system is principally that of the Cross River whose main source is found in Mount Bambouto.…”

“…The vegetation is dominantly that of the equatorial rain forest, and the drainage system is principally that of the Cross River whose main source is found in Mount Bambouto. The sources of its main tributaries the Munaya and Badi Rivers are at Mount Rumpi and Nda Ali respectively (Ndip et al, 2018).…”