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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and B horizons are invariably highly mottled. They support a characteristic veg~tation community of Me7a7euca viridif70ra low open woodland. Small areas of yellow earth (Ramil) an~ small areas of yellow podzol ics (Croker) are forming on higher~ level plains where drainage. is no~ as severely restricted. Surface gravel s are usually present. Eucalypt woodlands and occassiona1 Cypress pine stands were recorded in these areas. Brown, non cracking clays (Copeland family) are forming on the Cretaceous mud stones in the Mountnorri s Bay area. Their depth and inherent instability can be observed from the obvious dissection and e\osion of the sea cliffs between Guialung Point and Irgul Point. Tunnelling was observed in these soils. Copel and so il s were onl y qbserved in Mountnorris Land System and they are not extensive. They have not been described be fore. 4.4.4 Soils of the Coastal Margins Ther~ are no major freshwater alluvial deposits on Cobourg Peninsula. However, there are large areas of bare estuarine clay plains forming on the Van Dieman gulf side of the Penin.} . . ~ -' sula. Solonchaks (Carpentaria family) are the dominant soil. Mangrove forest is characteristic of the active tidal zone along c the coast and at the mouths of tJhe major creeks in the north. Saline Muds occur in these areas. Calcareous sands occur all alqng the coast but become extens1ve in the north (Danger Point, Smith point and Wanaraij Point). Sand plains with" relict beach ridges are found behind each of the above points. Laers of shell grit are commonly observed throughout these soils. - 27
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