PAN-AFRICAN CENTRAL AFRICAN FOLD BELT, WITH EMPHASIS ON BEDROCKS AND HEAVY MINERAL ANALYSIS OF RIVER ALLUVIUM IN THE NORTHERN CAMEROON

YE Hao; ZHAO Yue; LIU Jian

Volume 20 Issue 2

Jun. 2014

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Article Navigation > Journal of Geomechanics > 2014 > 20(2): 103-113

YE Hao, ZHAO Yue, et al., 2014. PAN-AFRICAN CENTRAL AFRICAN FOLD BELT, WITH EMPHASIS ON BEDROCKS AND HEAVY MINERAL ANALYSIS OF RIVER ALLUVIUM IN THE NORTHERN CAMEROON. Journal of Geomechanics, 20 (2): 103-113.

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PAN-AFRICAN CENTRAL AFRICAN FOLD BELT, WITH EMPHASIS ON BEDROCKS AND HEAVY MINERAL ANALYSIS OF RIVER ALLUVIUM IN THE NORTHERN CAMEROON

1.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
2.
Centre for Geological and Mining Research, PO Box 333, Garoua, Cameroon

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Received: 2014-01-04
Published: 2014-06-01

Abstract

Abstract

The assembly of Gondwanaland and Pan-African orogeny were briefly presented. Then, the lithological units and their tectonic settings in the northern Cameroon and southwestern Chad were dissected based on previous research. On this basis, heavy mineral analysis was carried out for river alluvium collected from northern Cameroon. The analysis results (species and contents of heavy mineral) were consistent with the basement rocks of the Mayo Kebbi magmatic arc belt and the Rey Bouba greenstone belt from Western Cameroon Domain (WCD). Gold in the alluvium may come from Rey Bouba greenstone belt, and the analysis results may give a prospect for alluvial gold exploit in northern Cameroon.
- western Gondwanaland,
- Pan-African orogeny,
- central African fold belt,
- Cameroon,
- heavy mineral analysis

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References(29)

References

[1]	Nguuri T K, Gore J, James D E, et al. Crustal structure beneath southern Africa and its implications for the formation and evolution of the Kaapvaal and Zimbabwe cratons[J]. Geophysical Research Letters, 2001, 28(13): 2501~2504. doi: 10.1029/2000GL012587
[2]	Ebinger C J. Tectonic development of the western branch of the East African rift system[J]. Geological Society of America Bulletin, 1989, 101(7): 885~903. doi: 10.1130/0016-7606(1989)101<0885:TDOTWB>2.3.CO;2
[3]	Van Hinsbergen D J, Buiter S J, Torsvik T H, et al. The formation and evolution of Africa from the Archaean to Present: introduction[J]. Special Publications of Geological Society of London, 2011, 357(1): 1~8. doi: 10.1144/SP357
[4]	Kusky T. Encyclopedia of Earth and Space Science[M]. An imprint of Infobase Publishing, 2010: 5~20.
[5]	Unrug R. The assembly of Gondwanaland[J]. Episodes, 1996, 19(1/2): 11~20.
[6]	Powell C M, Li Z X, Mcelhinny M W, et al. Paleomagnetic constraints on timing of the Neoproterozoic breakup of Rodinia and the Cambrian formation of Gondwana[J]. Geology, 1993, 21(10): 889~892. doi: 10.1130/0091-7613(1993)021<0889:PCOTOT>2.3.CO;2
[7]	Veevers J J. Gondwanaland from 650~500 Ma assembly through 320 Ma merger in Pangea to 185~100 Ma breakup: Supercontinental tectonics via stratigraphy and radiometric dating[J]. Earth Science Reviews, 2004, 68(1): 1~132.
[8]	Meert J G, Lieberman B S. The Neoproterozoic assembly of Gondwana and its relationship to the Ediacaran-Cambrian radiation[J]. Gondwana Research, 2008, 14(1/2): 5~21.
[9]	Stern R J. Arc-assembly and continental collision in the Neoproterozoic African orogen: implications for the consolidation of Gondwanaland[J]. Annual Review of Earth and Planetary Sciences, 1994, 22: 319~351. doi: 10.1146/annurev.ea.22.050194.001535
[10]	Meert J G, Van Der Voo R. The assembly of Gondwana 800~550 Ma[J]. Journal of Geodynamics, 1997, 23(3/4): 223~235. http://www.academia.edu/2954716/The_assembly_of_Gondwana_800-550_Ma
[11]	Gray D R, Foster D A, Meert J G, et al. A Damara orogen perspective on the assembly of southwestern Gondwana[C]//Special Publications of Geological Society. London: Geological Society, 2008: 257~278.
[12]	Kennedy W Q. The structural differentiation of Africa in the Pan-African (±500 my) tectonic episode[J]. Leeds Univ. Res. Inst. Afr. Geol. Annu. Rep. 1964, 8: 48~49.
[13]	Bouyo M H. Geochemistry and geochronology results for a better knowledge and understanding of geodynamic processes and tectonic settings of Northern Cameroon within the Central African Fold Belt[R]. Beijing: Chinese Academy of Geological Sciences, 2014.
[14]	Van Schmus W R, Oliveira E P, Da Silva Filho A F, et al. Proterozoic links between the Borborema Province, NE Brazil, and the Central African Fold Belt[C]//Special Publications of Geological Society. London: Geological Society, 2008: 69~99.
[15]	Toteu S F, Van Schmus W R, Penaye J, et al. New U-Pb and Sm-Nd data from north-central Cameroon and its bearing on the pre-Pan African history of central Africa[J]. Precambrian Research, 2001, 108(1/2): 45~73.
[16]	Bouyo M H, Penaye J, Barbey P, et al. Petrology of high-pressure granulite facies metapelites and metabasites from Tcholliré and Banyo regions: Geodynamic implication for the Central African Fold Belt (CAFB) of north-central Cameroon[J]. Precambrian Research, 2013, 224: 412~433. doi: 10.1016/j.precamres.2012.09.025
[17]	Bouyo Houketchang M, Toteu S F, Deloule E, et al. U-Pb and Sm-Nd dating of high-pressure granulites from Tcholliré and Banyo regions: Evidence for a Pan-African granulite facies metamorphism in north-central Cameroon[J]. Journal of African Earth Sciences, 2009, 54(5): 144~154. doi: 10.1016/j.jafrearsci.2009.03.013
[18]	Toteu S F, Penaye J, Djomani Y P. Geodynamic evolution of the Pan-African belt in central Africa with special reference to Cameroon[J]. Canadian Journal of Earth Sciences, 2004, 41(1): 73~85. doi: 10.1139/e03-079
[19]	Dawaï D, Bouchez J, Paquette J, et al. The Pan-African quartz-syenite of Guider (north-Cameroon): Magnetic fabric and U-Pb dating of a late-orogenic emplacement[J]. Precambrian Research, 2013, 236(0): 132~144.
[20]	Penaye J, Kröner A, Toteu S F, et al. Evolution of the Mayo Kebbi region as revealed by zircon dating: An early (ca. 740Ma) Pan-African magmatic arc in southwestern Chad[J]. Journal of African Earth Sciences, 2006, 44(4): 530~542.
[21]	宋春晖, 孙淑荣, 方小敏, 等.酒西盆地晚新生代沉积物重矿物分析与高原北部隆升[J].沉积学报, 2002, 20(4):552~559. http://www.cnki.com.cn/Article/CJFDTOTAL-CJXB200204003.htm SONG Chun-hui, SUN Shu-fang, FANG Xiao-min, et al. Analysis of tectonic uplift and heavy minerals of sediments on Liuxi basin in the northern margin of Tibetan plateau since the late Cenozoic [J]. Acta Sedimentologica Sinica, 2002, 20(4): 552~559. http://www.cnki.com.cn/Article/CJFDTOTAL-CJXB200204003.htm
[22]	和钟铧, 刘招君, 张峰.重矿物在盆地分析中的应用研究进展[J].地质科技情报, 2001, (4):29~32. http://www.cnki.com.cn/Article/CJFDTOTAL-DZKQ200104007.htm HE Zhong-hua, LIU Zhao-jun, ZHANG Feng. Latest progress of heavy mineral research in the basin analysis [J]. Geological Science and Technology Information, 2001, (4): 29~32. http://www.cnki.com.cn/Article/CJFDTOTAL-DZKQ200104007.htm
[23]	李任伟, 李忠, 江茂生, 等.合肥盆地碎屑石榴石组成及其对源区恢复和地层对比的意义[J].中国科学D辑:地球科学, 2000, 30(S1): 91~98. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK2000S1011.htm LI Ren-wei, LI Zhong, JIANG Mao-sheng, et al. Composition of clastic garnetite in the Hefei Basin and its significance to source area recovering and correlation of strata[J]. Science in China Series D: Earth Sciences, 2000, 30(Supp. 1): 91~98. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK2000S1011.htm
[24]	von Eynatten H, Gaupp R. Provenance of Cretaceous synorogenic sandstones in the Eastern Alps: constraints from framework petrography, heavy mineral analysis and mineral chemistry[J]. Sedimentary Geology, 1999, 124(1): 81~111. https://www.sciencedirect.com/science/article/pii/S0037073898001225
[25]	Morton A C, Hallsworth C R. Processes controlling the composition of heavy mineral assemblages in sandstones[J]. Sedimentary Geology, 1999, 124(1/4): 3~29.
[26]	Dill H G. Heavy mineral response to the progradation of an alluvial fan: implications concerning unroofing of source area, chemical weathering and palaeo-relief (Upper Cretaceous Parkstein fan complex, SE Germany)[J]. Sedimentary Geology, 1995, 95(1/2): 39~56.
[27]	Morton A C, Hallsworth C. Identifying provenance-specific features of detrital heavy mineral assemblages in sandstones[J]. Sedimentary Geology, 1994, 90(3/4): 241~256.
[28]	刘亮明, 彭省临, 吴延之.湘东北地区脉型金矿床成矿构造特征及构造成矿机制[J].大地构造与成矿学, 1997, 3(21):197~204. http://www.cnki.com.cn/Article/CJFDTOTAL-DGYK199703001.htm LIU Liang-ming, PENG Xing-lin, WU Yan-zhi. Features of metallogenic-tectonics and mechanism of tectonic-metallization for vein-type gold deposits in the north-eastern Hunan, China[J].Geotectonica et Metallogenia, 1997, 3(21): 197~204. http://www.cnki.com.cn/Article/CJFDTOTAL-DGYK199703001.htm
[29]	Frimmel H E, Minter W. Recent developments concerning the geological history and genesis of the Witwatersrand gold deposits, South Africa[J]. Special Publication: Society of Economic Geologists, 2002, 9: 17~46.