https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/81432 2026-05-24T22:14:22Z 2026-05-24T22:14:22Z Kositcin, N Verdel, C Hansman, R https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/94529 2026-03-27T05:04:42Z 2026-01-01T00:00:00Z

Title: Summary of results. Joint NTGS-GA geochronology project: selected samples from RODINGA 1:250 000 mapsheet, Amadeus Basin Author: Kositcin, N; Verdel, C; Hansman, R Abstract: This Record presents new Sensitive High Resolution Ion Microprobe (SHRIMP) U-Pb geochronological results from the Amadeus Basin. These results were obtained from outcrop specimens during the joint 2024-2025 Northern Territory Geological Survey-Geoscience Australia (NTGS-GA) geochronology project under the National Collaboration Framework (NCF) agreement. Ten samples were selected to investigate zircon provenance from Neoproterozoic to Devonian strata of the Amadeus Basin and to potentially aid reassignment of sedimentary units as part of NTGS's mapping activities in the eastern part of the basin.

2026-01-01T00:00:00Z Morris, PD https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/94503 2026-03-16T05:50:31Z 1986-01-01T00:00:00Z

Title: Stratigraphy, potential source rock and petroleum geochemistry of Western Georgina Basin, Northern Territory Author: Morris, PD Abstract: Between mid-1983 and early 1985, the Northern Territory Geological Survey (NTGS) carried out a diamond drilling program in the western portion of the Georgina Basin to elucidate the Lower and Middle Cambrian stratigraphy in areas of very poor outcrop. The program was carried out as an adjunct to the NTGS's mapping program in ELKEDRA and BARROW CREEK.; Two of the diamond drillholes, ELK6 and ELK7,7A intersected oil-stained dolostone over a number of intervals within the Middle Cambrian Chabalowe Formation (New Name, Stidolph and others, in preparation) and the Middle to Upper Cambrian Arrinthrunga Formation. Organic-rich Middle Cambrian sediments, assigned to the Arthur Creek Formation (Freeman, 1986), were intersected in drillholes ELK2, ELK3, and ELK7,7A. Organic geochemical data indicates that the Arthur Creek Formation is a good potential source for hydrocarbons.; The mapping and drilling programs carried out by the NTGS have significantly refined the Cambrian stratigraphy of the western portion of the Georgina Basin. It has been established that the Middle Cambrian sediments extend from the Dulcie Syncline NW into the 'Lander Trough' in the Wiso Basin (Bagas, 1985).; In the western portion of the Georgina Basin the Lower Palaeozoic sequence occurs over an area of approximately 3800 sq.km and reaches a thickness of at least 1500 min the axis of the Dulcie Syncline.

1986-01-01T00:00:00Z Khan, M https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/94502 2026-03-16T03:03:24Z 2026-01-01T00:00:00Z

Title: Base metal deposits of the Northern Territory Author: Khan, M Abstract: This Report describes the major base metal deposits of the Northern Territory. There are currently 826 base metal deposits or occurrences in the Northern Territory (NT), including the McArthur River Mine, one of the world's largest lead-zinc operations. Based on the history of discoveries, prospective geology and the relatively low level of exploration, there is potential for new discoveries of significant base metal mineralisation in the Northern Territory.; Base metal deposits in this Report are defined as deposits or occurrences containing copper (Cu), lead (Pb), zinc (Zn), nickel (Ni) and cobalt (Co) mineralisation or various combinations of the same (polymetallic), and often including precious metals; that is, gold (Au) and silver (Ag).; The Northern Territory Geological Survey (NTGS) Mineral Occurrence Database (MODAT) records all the known mineral occurrences of the NT. MODAT currently lists 3471 mineral occurrences of which 24% (826) are base metal occurrences; Base metals were first mined in 1875 from a copper discovery made in 1869 in the Rum Jungle area in the Pine Creek Orogen (PCO). Towards the end of the nineteenth century, lead-zinc-silver mineralisation was also discovered in the PCO at Mount Evelyn and several other localities. Since then, the total recorded production of major base metals in the NT to June 2024 is 1 976 605 tonnes (t) of copper, 1 400 552 t of lead and 5 712 347 t of zinc. Nickel and cobalt have only been mined as byproducts from two operations, Home of Bullion and Whites.; Older Proterozoic geological units host the majority of the base metal occurrences. The PCO, McArthur Basin, and the Aileron and Warumpi provinces host most of these with most of the base metal production coming from the PCO and McArthur Basin deposits.; Historically, base metal exploration has been mainly focused in the PCO and McArthur Basin. Lesser exploration effort has been made in the greenfield areas, such as the Amadeus Basin and the Aileron, Warumpi and Irindina provinces. However, modern exploration techniques, such as helicopter or drone electromagnetic surveys, have led to the discovery of significant base metal mineralisation in newly explored areas, eg Cu-Au-Bi mineralised ironstone deposits in the Tennant Creek mineral field. Future base metal discoveries, both in historically worked and greenfield areas, will be a function of ongoing exploration activity combined with advanced exploration techniques.

2026-01-01T00:00:00Z https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/94468 2026-03-16T02:02:08Z 2026-01-01T00:00:00Z

Title: Critical Minerals and Gold in the Northern Territory 2026 Abstract: The Northern Territory is well placed to become an important new player in global supply chains for the critical minerals that are required for new technologies and the energy transition.; 'Critical Minerals and Gold in the Northern Territory 2026' outlines the Territory's resource endowment of its current list of 21 critical minerals - aluminium, bismuth, cobalt, copper, graphite, iron ore, lead, lithium, magnesium, manganese, molybdenum, nickel, phosphate, rare earth elements, silver, titanium, tungsten, uranium, vanadium, zinc and zirconium - as well as its geological potential for a further 14 emerging critical minerals.

2026-01-01T00:00:00Z