D. R. Katanga and . Congo, Journal of African Earth Sciences, vol.161

O. Friedrich, R. D. Norris, and J. Erbacher, Evolution of middle to Late Cretaceous oceans -A 55 m.y. record of Earth's temperature and carbon cycle, Geology, vol.40, pp.107-110, 2012.

P. Giresse, Meso-Cenozoic history of the Congo Basin, Journal of African Earth Sciences, vol.43, pp.301-315, 2005.

F. M. Gradstein, J. G. Ogg, A. G. Smith, F. P. Agterberg, W. Bleeker et al.,

J. Mcarthur, M. J. Melchin, L. J. Robb, J. Shergold, M. Villeneuve et al.,

J. Powell, K. A. Plumb, I. Raffi, U. Röhl, A. Sanfilippo et al., A Geologic Time Scale, vol.589, p.pp, 2004.

F. M. Gradstein, J. G. Ogg, M. D. Schmitz, G. M. Ogg, F. P. Agterberg et al.,

T. R. Becker, J. A. Catt, R. A. Cooper, V. I. Davydov, S. R. Gradstein et al.,

J. F. Kasting, H. Kerp, D. Korn, W. Krijgsman, L. J. Lourens et al.,

P. M. Sadler, R. P. Speijer, W. Steffen, E. Thomas, B. R. Wardlaw et al., The Geologic Time Scale, p.1176, 2012.

F. M. Gradstein, J. G. Ogg, and F. J. Hilgen, On the Geologic Time Scale, Newsletters on Stratigraphy, vol.45, pp.171-188, 2012.

S. Grangeon, A. Fernandez-martinez, F. Warmont, A. Gloter, N. Marty et al.,

B. Lanson, Cryptomelane formationfrom nanocrystalline vernadite precursor: a high energy X-ray scattering and transmission electron microscopy perspective on reaction mechanisms, Geochemical Transactions, vol.16, p.12, 2015.

D. Green and M. C. Daly, Manganese mineralization in Zambia, Transactions of the Institution of Mining and Metallurgy B, vol.91, pp.33-41, 1982.

F. Guillocheau, R. Chelalou, B. Linol, O. Dauteuil, C. Robin et al.,

J. P. Colin, Cenozoic landscape evolution in and around the Congo Basin: Constraints from sediments and planation surfaces, Geology and Resource Potential of the Congo Basin, 2015.
URL : https://hal.archives-ouvertes.fr/insu-01116946

P. R. Renne, G. Balco, R. L. Ludwig, R. Mundil, K. ;. Min et al., Joint determination of 40 K decay constants and 40 Ar * / 40 K for the Fish Canyon sanidine standard, and improved accuracy for 40 Ar/ 39 Ar geochronology, Geochimica et Cosmochimica Acta, vol.75, pp.5097-5100, 2010.

P. R. Renne, R. Mundil, G. Balco, K. Min, and R. L. Ludwi, Joint determination of 40 K decay constants and 40 Ar * / 40 K for the Fish Canyon sanidine standard, and improved accuracy for 40 Ar/ 39 Ar geochronology, Geochimica et Cosmochimica Acta, vol.74, pp.5349-5367, 2011.

P. R. Renne, C. C. Swisher, A. L. Deino, D. B. Karner, T. L. Owens et al., Intercalibration of standards, absolute ages and uncertainties in 40 Ar/ 39 Ar dating, Chemical Geology, vol.145, pp.117-152, 1998.

A. Reusch, A. Nyblade, D. Wiens, P. Shore, B. Ateba et al., Upper mantle structure beneath Cameroon from body wave tomography and the origin of the Cameroon Volcanic Line, Geochemistry Geophysics Geosystems, vol.11, p.17, 2010.

A. Reusch, A. Nyblade, R. Tibi, D. Wiens, P. Shore et al., Mantle transition zone thickness beneath Cameroon: evidence for an upper mantle origin for the Cameroon Volcanic Line, Geophysical Journal International, vol.187, pp.1146-1150, 2011.

S. Riffel, P. Vasconcelos, I. Carmo, and K. Farley, Combined 40 Ar/ 39 Ar and (U-Th)/He geochronological constraints on long-term landscape evolution of the Second Paraná Plateau and its ruiniform surface features, Brazil. Geomorphology, vol.233, pp.52-63, 2014.

E. M. Roberts, N. J. Stevens, P. M. O'connor, P. H. Dirks, M. D. Gottfried et al., Initiation of the western branch of the East African Rift coeval with the eastern branch, Nature Geoscience, vol.5, pp.289-294, 2012.

E. Roberts, H. A. Jelsma, and T. Hegna, Mesozoic sedimentary cover sequences of the, 2015.

, Congo Basin in the Kasai Region, Democratic Republic of Congo

F. Guillocheau and M. C. De-wit, Geology and resource potential of the Congo Basin

. Springer, , pp.163-191

J. C. Roddick, R. A. Cliff, and D. C. Rex, The evolution of excess argon in alpine biotites -A 40 Ar-39 Ar analysis, Earth and Planetary Science Letters, vol.48, pp.185-208, 1980.

G. Ruffet, G. Féraud, and M. Amouric, Comparison of 40 Ar-39 Ar conventional and laser dating of biotites from the North Trégor Batholith, Geochimica Cosmochimica Acta, vol.55, pp.1675-1688, 1991.

G. Ruffet, G. Féraud, M. Balèvre, and J. Kiénast, Plateau ages and excess argon in phengites: an 40 Ar-39 Ar laser probe study of Alpine micas, Chemical Geology, vol.121, pp.327-343, 1995.

G. Ruffet, G. Gruau, M. Balèvre, G. Féraud, and P. Philippot, Rb-Sr and 40 Ar-39 Ar laser probe dating of high-pressure phengites from the Sesia zone (Western Alps): underscoring of excess argon and new age constraints on the high-pressure metamorphism, Chemical Geology, vol.141, pp.1-18, 1997.

G. Ruffet, C. Innocent, A. Michard, G. Féraud, A. Beauvais et al., A geochronological 40 Ar/ 39 Ar and 87 Rb/ 86 Sr study of K-Mn oxides from the weathering sequence of Azul, Brazil. Geochimica et CosmochimicaActa, vol.60, pp.2219-2232, 1996.

D. Sahagian, Epeirogenic motions of Africa as inferred from Cretaceous shoreline deposits, Tectonics, vol.7, pp.125-138, 1988.

J. Schmitt, Weathering, rainwater and atmosphere chemistry: example and modelling of granite weathering in present conditions, in a CO 2 -rich, and in an anoxic palaeoatmosphere, Special Publications of the International Association of Sedimentologists, vol.27, pp.21-41, 1999.

H. Schuiling, Dossier SudKat II-A9, 1955.

F. Solé, C. Noiret, D. Desmares, S. Adnet, L. Taverne et al.,

N. Yaya and T. Smith, Reassessment of historical sections from the Paleogene marine margin of the Congo Basin reveals the absence of Danian deposits, Geoscience Frontiers, vol.10, pp.1039-1063, 2019.
URL : https://hal.archives-ouvertes.fr/hal-01953557

H. G. Stehlin, Remarques sur les faunules de Mammifères des couches éocènes et oligocènes du Bassin de Paris, Bulletin de la Société Géologique de France, vol.4, issue.9, pp.488-520, 1910.

Y. Tardy, B. Kobilsek, and H. Paquet, Mineralogical composition and geographical distribution of African and Brazilian periatlantic laterites. The influence of continental drift and tropical paleoclimates during the past 150 million years and implications for India and Australia, Journal of African Earth Sciences, vol.12, pp.283-295, 1991.

H. Theveniaut, Recherches et applications du paléomagnétisme et du magnétisme des roches aux problématiques d'un service géologique national, 2012.

T. H. Torsvik, R. D. Tucker, L. D. Ashwal, E. A. Eide, N. A. Rakotosolofo et al., Late Cretaceous magmatism in Madagascar: palaeomagnetic evidence for a stationary Marion hotspot, Earth Planetary Science Letters, vol.164, pp.221-232, 1998.

T. H. Torsvik, R. Van-der-voo, U. Preeden, C. Mac-niocaill, B. Steinberger et al., Phanerozoic polar wander, paleogeography and dynamics, Earth-Science Reviews, vol.114, pp.325-368, 2012.

G. Turner, 40 Ar-39 Ar ages from the lunar Maria, Earth and Planetary Science Letters, vol.11, pp.169-191, 1971.

G. Turner and P. H. Cadogan, Possible effects of 39 Ar recoil in 40 Ar-39 Ar dating, Proceedings of the Fifth Lunar Science Conference, vol.2, pp.1601-1615, 1974.

N. A. Vafeas, K. S. Viljoen, and L. C. Blignaut, Mineralogical characterization of the thrusted manganese ore above the Blackridge Thrust Fault, Kalahari Manganese Field: the footprint of the Mukulu enrichment, Island Arc, vol.28, p.12280, 2018.

N. A. Vafeas, L. C. Blignaut, K. S. Viljoen, and S. Meffre, New evidence for the early onset of supergene alteration along the Kalahari unconformity, South African Journal of Geology, vol.121, pp.157-170, 2018.

H. S. Van-niekerk, J. Gutzmer, N. J. Beukes, D. Philips, and G. B. Kiviets, An 40 Ar/ 39 Ar age of supergene K-Mn oxyhydroxides in a post-Gondwana soil profile on the Highveld of South Africa, South African Journal of Science, vol.95, pp.450-454, 1999.

P. M. Vasconcelos, K-Ar and 40 Ar-39 Ar geochronology of weathering processes, 1999.

, Annual Review of Earth and Planetary Sciences, vol.27, pp.83-229

P. M. Vasconcelos, T. A. Becker, P. R. Renne, and G. H. Brimhall, Age and duration of weathering by 40 K-40 Ar and 40 Ar/ 39 Ar analysis of Potassium-Manganese Oxides, Science, vol.58, pp.451-455, 1992.

P. M. Vasconcelos, . Carmo, and O. De, Calibrating denudation chronology through 40Ar/39Ar weathering chronology, Earth-Science Reviews, vol.179, pp.411-435, 2018.

P. M. Vasconcelos and M. Conroy, Geochronology of weathering and landscape evolution, Geochimica et CosmochimicaActa, vol.67, pp.2913-2930, 2003.

P. Vasconcelos, J. Heim, K. Farley, H. Monteiro, and K. Waltenberg, 40 Ar/ 39 Ar and (U-Th)/He -4 He/ 3 He geochronology of landscape evolution and channel iron deposit genesis at Lynn Peak, Western Australia, Geochimica et CosmochimicaActa, vol.117, pp.283-312, 2013.

P. M. Vasconcelos, P. R. Renne, T. A. Becker, and H. R. Wenk, Mechanisms and kinetics of atmospheric, radiogenic, and nucleogenic argon release from cryptomelane during, 1995.

, Ar/ 39 Ar analysis. Geochimica et CosmochimicaActa59, pp.2057-2070

P. M. Vasconcelos, P. R. Renne, G. H. Brimhall, and T. A. Becker, Direct dating of weathering phenomena by 40 Ar/ 39 Ar and K-Ar analysis of supergene K-Mn oxides, Geochimica et CosmochimicaActa, vol.58, pp.1635-1665, 1994.

B. Venancio-da-silva, P. C. Hackspacher, M. C. Siqueira-ribeiro, U. A. Glasmacher, A. O. Gonçalves et al., Evolution of the Southwestern Angolan margin: episodic burial and exhumation is more realistic than long-term denudation, International Journal of Earth Sciences, vol.108, pp.89-113, 2019.

B. Wade and H. Pälike, Oligocene climate dynamics, Paleoceanography, vol.19, p.16, 2004.

Y. Wang, C. Huang, B. Sun, C. Quan, J. Wu et al., Paleo-CO 2 variation trends and the Cretaceous greenhouse climate, Earth-Science Reviews, vol.129, pp.136-147, 2014.

H. Wichura, R. Bousquet, R. Oberhänsli, M. R. Strecker, and M. H. Trauth, Evidence for middle Miocene uplift of the East African Plateau, Geology, vol.38, pp.543-546, 2010.

J. R. Wijbrans and I. Mcdougall, 40 Ar/ 39 Ar dating of white micas from an Alpine highpressure metamorphic belt on Naxos (Greece): the resetting of the argon isotope system, Contributions to Mineralogy and Petrology, vol.93, pp.187-194, 1986.

D. York, Least squares fitting of a straight line with correlated errors, Earth Planet. Science Letters, vol.5, pp.320-324, 1969.

D. York, N. Evensen, M. Lopez-martinez, and J. De-basabe-delgado, Unified equations for the slope, intercept, and standard errors of the best straight line, American Journal of Physics, vol.72, issue.3, pp.367-375, 2005.

J. C. Zachos, K. C. Lohmann, J. C. Walker, and S. W. Wise, Abrupt climate change and transient climates during the Paleogene: a marine perspective, Journal of Geology, vol.101, pp.191-213, 1993.

J. C. Zachos, M. Pagani, L. Sloan, E. Thomas, and K. Billups, Trends, rhythms, and aberrations in global climate 65 Ma to present, Science, vol.292, pp.686-693, 2001.

J. C. Zachos, G. R. Dickens, and R. E. Zeebe, An early Cenozoic perspective on greenhouse warming and carbon-cycle dynamics, Nature, vol.451, pp.279-283, 2008.

, Blue stars are localities for which Campanian ages have been obtained. B. Mid-to late Eocene

C. Oligo-miocene, All sketches are based on ages obtained by the present study and on previously published data, with opening of the East African Rift System (EARS)

;. Gunnell and . Anka, Theveniaut, 2008.

, Mwene-Ditu (green) and Kisenge (yellow)) vs. ? 18 O benthic . Frequency diagram of apparent ages for

;. Tambao and . Friedrich, but differs sizeably for Upper Cretaceous (Campanian) and Paleocene. Reappraisals for these two stages, according to the chronostratigraphic of Gradstein et al. (2012) are shown as inserts. Recorded 40 Ar/ 39 Ar "events" are plotted on shifted ? 18 O curve segments. A readjustment was also processed for the Early Late Paleocene Event (ELPE) set at c. 58.4 Ma by Bralower, grey. See text for explanations. The colour codes of are those of the International Chronostratigraphic Chart. Reassessed ? 18, 1985.