Granitic inselbergs of Lara(Panafrican Chain,Far-North Cameroon):Assets for the implementation of geotourism in Mountainous region  

作　　者：ZANGMO TEFOGOUM Ghislain NOUHOU DAMA Zouyane Hyacinthe GOUNTIÉDEDZO Merlin MAFO DONGMO Irène 

机构地区：[1]Department of Earth Sciences de la Terre,Faculty of Science,University of Maroua,P.O.Box 814 Maroua,Cameroon [2]Department of Life and Earth Sciences,High Teacher Training College,University of Maroua,P.O.Box 55,Maroua,Cameroon

出　　处：《Journal of Mountain Science》2022年第11期3192-3212,共21页山地科学学报（英文）

摘　　要：The locality of Lara(Far-North Region,Cameroon)is made up of a pediplain strewn with coalescent plutons.The interaction of internal and external geological processes has contributed to transform the latter into inselbergs,whose geotouristic values are yet to be studied.Field and laboratory work enabled us to select the geomorphosites through their aesthetic value(particular size and shape)and,geomorphological and geological features.Moreover,it permitted to study and map the geomorphosites using Optic Microscope,Google Earth,GIS software and many other interfaces.Hence,four inselbergs have been selected and studied in the locality of Lara.The petrographic study of these inselbergs shows that granites are the main components of inselbergs and they present a fine to coarse-grained texture,materialized by quartz,micas,plagioclases and alkali feldspars(white and pink in colour).Inselbergs exhibit vertical and parallel networks of diaclases giving them a stratified appearance in some flanks.In addition,on some inselberg limbs and piedmonts,are built tors which contribute to their beauty.The tops of inselbergs,are embellished by several alluring pedestal rocks.On their flanks,shelters of various shapes and sizes(about 12 m length)have developed through the heaps of blocks field.Among the ten shelters selected,some have a fairly high cultural value as they are sacred places for the local population.Moreover,Lara's granitic inselbergs include enclaves(cognate enclaves and xenocrysts)that also significantly improve their geoheritage value.Inselbergs are landforms with high education and aesthetic value that attracted a larger local and foreign population of about 863 visitors between 2017-2019.They constitute an exceptional geoheritage that could attract more tourists in the locality of Lara;but the promotion of geotourism is needed through interpretative panels,marketing of geomorphosites through leaflets,web,media,and geotours,to mention a few.

关 键 词：Lara Inselbergs Granite geoheritage Geotouristic activities 

分 类 号：P343.6[天文地球—水文科学] F594.38[天文地球—地球物理学]