The land resources of Cobourg Peninsula
by B. Wood and D. Sivertsen
Wood, B.; Sivertsen, D.; Conservation Commission of the Northern Territory
E-Publications; E-Books; PublicationNT
Made available via the Publications (Legal Deposit) Act 2004 (NT).; This report describes a land system survey over the Cobourg Peninsula broadly describing landform, soils and vegetation to assist the effective planning and management of the area as a National Park.
1. Introduction -- 2. Summary Descriptions -- 3. Land Systems -- 4. Soils -- 5. Vegetation -- Appendices -- Acknowledgements.
Land use -- Northern Territory -- Cobourg Peninsula; Vegetation mapping -- Northern Territory -- Cobourg Peninsula
Conservation Commission of the Northern Territory
iv, 80,  p. : col. ills. ; 30 cm.
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2. SUMMARY DESCRIPTIONS 2.1 Land Systems A total of ten land systems have been described for the Pen insula. The land syst~ms have been divided, according to their geomor phic relationships, into three groups. Table 4.1 presents a summ ary on the land system descriptions. Group 1. Land systems associated with the low plateau surface. These sys!ems, occurr ing on 1 aterized Cretaceous and Quater nary sedi~ents, occur in the northern and western portions of the Peninsula. The land surface here tends too be flat to gently undu lating with a regional dip to the north. On the sourthern and eastern extremities of this plateau th,e land falls away sharply with very ste.ep or, in some instances, precipitous fall s (Scarp land system).. North of the scarp 1 ine the surface is generally flat to very gently undulating with deep red ?nd yellow earths with Eucalyptus open forests (Ramsay land system). On the north-point ing promentaries of the P,eninsula this original surface has been re-weathered and dissected, resulting in undulating terrain charac terised by shallow red earths and lithosols (Caiman land system). Adjacent to the northern coastline the plateau falls away to gently undulating lowlands characterized by the presence of bauxitic sediments supporting a monsoonal closed forest (Kennedy land system). The. drainage networks of the plateau surface tend to be broad floored, slow flowing and contain many ponded~areas occurring as permanent lagoons and swamps (Alaru land system). Group 2. Land systems associated with the Wangarl u mudstone form ation. These systems occur be,low the main plateau surface on dis sected quaternary sed iment,s, rna i nl y in the southern and eastern portions of the Peninsula. Immediately below ~carp land system, and in other areas on the neck of the Peninsula, the land surface is characterized by the occurrence of ferruginous capping plateau - 5
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