Woodgreen, Northern Territory : explanatory notes
Northern Territory Geological Survey
E-Publications; E-Books; PublicationNT; Australia 1:100 000 Geological Map Series
2007
Australia 1:100 000 Geological Map Wood 5458; Australia 1:250 000 Geological MapAlcoota SF5310; Australia 1:250 000 Geological MapAlcoota SF5310
1:100 000
Made available via the Publications (Legal Deposit) Act 2004 (NT); Available from GEMIS - Geoscience Exploration and Mining Information System
English
Geology; Georgina Basin; Arunta Region
Northern Territory Government; Northern Territory Government
Darwin
1st ed.
Australia 1:100 000 Geological Map Series
application/pdf
9780724571321
0811-6296
Attribution International 4.0 (CC BY 4.0)
Northern Territory Government
https://creativecommons.org/licenses/by/4.0/
https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/81885 [GEMIS]
https://hdl.handle.net/10070/794795
https://hdl.handle.net/10070/794807
2 3 35 25 12 20 7 35 25 40 60 3015 15 20 20 50 35 40 20 65 45 30 30 15 60 80 45 35 30 30 10 10 10 10 10 60 20 25 40 5 4 25 10 40 15 3 5 15 30 4510 7 45 15 30 40 30 20 55 80 2030 20 70 80 84 20 20 7 10 720 10 10 5 15 70 50 LPst LPst LPst LPst LPst LPst LPst LPst LPstLPsa LPsa LPsa LPsa LPsa LPsa LPra LPra LPra LPor LPbo LPbo 10 LPra 42 40 00 m E 42 50 00 m E 42 70 00 m E 43 00 00 m E 43 80 00 m E 43 50 00 m E 43 10 00 m E 75370000mN 42 40 00 m E Skinner Bore CMS2 Mount Skinner 4 Mount Skinner CMS1 BH2 CMS4 BH1 3 2 B C A Mount Skinner 2 Mount Skinner 4 CMS3 New Bore Skinner 3 Mount Qa Qa Qa Qa Qa 1 C-- mc LPor LPst LPra LPbo LPsa LPg LPg LPg qb Adnera Member Tops Member Grant Bluff Formation Oorabra Arkose Boko Formation qb m03-224.dgn Costeans Surface samples Drillhole location anticline, syncline mapped fault trace of cupriferous outcrop bedding trend from airphotos quartz breccia Qa undivided granitoids Explorations surface occurrence sampled by Centamin 3 CRA soil sample traverse CRA grab sample Centamin cored drillhole NTGS cored drillhole CMS2 Kunoth Knob D E F qb LPut Cmc LPut ?Utopia Quartzi te ?Chabalowe Formation Cenozoic (undif ferent iated) LPut DARWIN NORTHERN BASIN DARWIN NORTHERN TERRITORY Prospect Mount Skinner GEORGINA 43 80 00 m E 43 10 00 m E 42 50 00 m E BH1 Mount Skinner 4 A geochemical survey by Utah 10 LPst (cupri ferous interval) Kennecott Explorations percussion bulldozed by Kennnecott 7560000mN 7560000mN 7558000mN 7550000mN 7545000mN 7535000mN7535000mN 7538000mN 7540000mN 7548000mN LEGEND Cent ra l Mount Stuar t Fm Figure21. mount ski nne r ge ol ogi c a l s ke t c h m a p s how i n g c upr i f e r ous out c r op, dr i l l hol e l oc a t i ons a nd s ur f a c e s a m pl i ng. com pi l e d f r om c om p a ny r e por t s a nd H a i ne s (2004) , a f t e r duns t e r et al 20 07. 1.5 m of 1500 ppm Cu at 115.9 m depth in BH3. Kennecott c onc l ude d t ha t hi ghe s t gr a de s w e r e s ol e l y s ur f a c e e nr i c hm e nt and ceased operations in late 1966 (Halliday 1966). Following a review by Grainger (1968a), the Mines a nd Wa t e r Br a nc h of t he nor t he r n te r r i t or y adm i ni s t r a t i on dr i l l e d f our c or e d hol e s (mount ski nne r 1 t o 4) t o t a l l i ng 596 m, which penetrated the Central Mount Stuart Formation a nd e nt e r e d ol de r s e di m e nt a r y r oc ks be ne a t h. anom a l ous cu c ont i nue s dow ndi p i n t he tops me m be r , but n ot a t a n economic grade. The highest Cu assay was 6500 ppm for a 0.3 m i nt e r va l a t a bout 203 m de pt h i n mount ski nne r 3. H ow e ve r , t hi s hol e une xpe c t e dl y i nt e r s e c t e d t w o i nt e r va l s of e l e va t e d Pb a nd zn t ha t s e e m i ngl y oc c ur i nde pe nde nt l y of cu. one 1 .5 m i nt e r va l i n t he gr a nt Bl uf f For m a t i on