H0002	Version	4						
H0003	Date_generated	10/06/2014						
H0004	Reporting_period_end_date	11/06/2014						
H0005	State	NT						
H0100	Tenement_no/Combind_report_no	EL29018						
H0101	Tenement_holder	Tellus Holdings Ltd						
H0102	Project_name	CHANDLER						
H0106	Tenement_operator	Tellus Holdings Ltd						
H0150	250K_map_sheet_number	SG5302						
H0151	100K_map_sheet_number	5648						
H0152	50K_map_sheet_number							
H0153	25K_map_sheet_number							
H0200	Start_date_of_data_acquisition	12/04/2013						
H0201	End_date_of_data_acquisition	11/04/2013						
H0202	Template_format	DL1						
H0203	Number_of_data_records	52						
H0204	Date_of_metadata_update	7/06/2014						
H0300	This_filetype	EL29018_2014_A_05_LithoLogs.txt						
H0301	Location_data_file	EL29018_2014_A_02_DrillCollars.txt						
H0302	Lithology_data_file	EL29018_2014_A_05_Lithologs.txt						
H0303	Assay_data_file	EL29018_2014_A_03_DownholeGeochem.txt						
H0304	Survey_data_file							
H0305	SurfGeochem_Data_File							
H0307	Lithology_code_file							
H0308	File verification List	EL29018_2014_A_06_FileListing.txt						
H0400	Drill_code	DD	MR					
H0401	Drill_contractor	Mitchell Services	Mitchell Services					
H0402	Description	DD:Diamond Drilling	MR:Mud Rotary					
H1000	Hole ID	Depth from	Depth To	Drill_code	Rock1	Rock2	Description	Comments
H1001	0	metres	metres	0	0	0	0	0
H1004	0	0.1	0.1	0	0	0	0	0
D	CH003	0	5	MR	sand		"Clayey, silty SAND: red brown, unconsolidated, very fine to occasionally very coarse, subrounded to rounded. Coagulates with water to form sandy clay"	Red dune sands of aeolian origin
D	CH003	5	87	MR	sandstone		"SANDSTONE: predominantly red, brown occasionally mid grey, occasionally cream; very fine to fine grainsize, subangular to rounded quartz grains with common mica, soft to firm (variably cemented) with abundant silt / clay matrix in part. Grades to siltstone in places"	First 15m are 50% cream sandstone clasts. Probable interbeds
D	CH003	87	95	MR	sandstone		"SANDSTONE: interbedded red brown (as above) and light grey sandstone; fine to medium grainsize, friable to firm, subangular to subrounded quartz grains with common mica and minor lithic fragments. Soft to friable to firm."	Probable interbedded sandstones
D	CH003	95	102	MR	sandstone		"SANDSTONE: more heterogeneous interval with very poorly sorted grains (very fine to very coarse quartz grains) as well as firm aggregated of clear/translucent, yellow, tan and red brown sandstone. Loose grains may indicate porosity. Some carbonate cement/matrix supported sandstone in parts (hard chips)."	Possible aquifer?
D	CH003	102	107	MR	sandstone		"SANDSTONE: Predominantly red brown with occasional mid grey, cream and tan aggregates. Cream chips have carbonate cement. Grain size is very fine to occasionally very coarse- poorly sorted. As above some very coarse loose quartz grains may indicate porous bedding. Carbonate cement common. Quartz grains subangular to rounded. Abundant red clay / silt matrix in places."	Good porosity in places?
D	CH003	107	155	MR	sandstone	siltstone	"SANDSTONE: red brown, occasional grey, very fine – medium grain size, subangular to rounded quartz grains with mica beds and occasional black carbonaceous material. Silty, grading to SILTSTONE in places. Friable to firm to hard. Carbonate present as either matrix or fine calcareous grains. Reacts with acid strongly in parts and weakly to no reaction with increasing depth."	Carbonate matric / cement or as grains. Redbed type sandstone with calcareous grains or matrix
D	CH003	155	192	MR	sandstone	claystone	"CLAYEY SANDSTONE / SANDY CLAYSTONE: Begins as interbeds with above red brown sandstone and corresponds to poor sample returns and then loss of mud downhole at 192m. TOTAL LOSS. Unit is described as predominantly whitish grey with some black flecks of carbonaceous material; soft to friable; fine to coarse sand in a whitish grey clay matrix; poorly sorted, probably matrix support. Calcareous grains and /or matrix in part; reacts slowly with acid. Possibly dolomitic. Quartz sands of varying colour (clear to dark red orange) and roundness and sphericity."	Diminished sample returns from 155m. Total loss of circulation / mud at 192m.
D	CH003	192	204	MR	sandstone		Drill with nil returns and total mud loss	No cuttings
D	CH003	204	207	MR	sandstone	clay	SAND: clear to frosted; quartz grains in possible a remnant white clay matrix but predominantly loose grains. Grains are fine to coarse and moderately sorted to poorly sorted. Good inferred porosity. Very poorly cemented/cement absent? Individual grains are sub rounded to well-rounded and predominantly ovoid or spherical. Total loss of drilling fluid in this interval.	Loss of circulation at 208m. Clay approximately 15% of sample
D	CH003	207	221	MR	sandstone		No sample return – loss of circulation	Run casing – switch to HQ coring
D	CH003	221	246.3	MR	sandstone		Circulation / returns intermittently appear	
D	CH003	246.3	267.5	DD	sandstone		"SANDSTONE: predominantly red brown with whitish grey interbeds to 20cm wide. Narrow siltstone (red brown) laminae exhibiting soft sediment deformation textures in places; red brown sandstone is very fine to predominantly medium grainsize with occasional coarse bands, moderately sorted subrounded grains predominate. Whitish grey sandstone is medium to coarse grained with carbonate cement. Both sandstones are firm to very hard and core is competent with no fracturing and minor breaks along anhydrite veins/beds (1-2mm) on rare occasions. White grey sandstone has visible porosity in places especially where coarse. Red brown sandstone has poor to nil visible porosity and has a red brown silt to clay matrix as well as silica cement. Red brown sandstone grades to dark red brown siltstone laminae in parts. Red brown sandstone has common fine to medium mica and dark lithic fragments. Coarse sandstone section around 260m corresponds to disking and core loss and increased friability. Fines downward to siltstone at base of section with narrow anhydrite and carbonate laminae (1-2mm)."	"Begin coring HQ at 246.3m. Paler, coarser sandstone has carbonate cement. Red brown sandstone has no carbonate."
D	CH003	267.5	277.5	DD	siltstone	sandstone	"Interbedded SILTSTONE and SANDSTONE: red brown, light brown and creamish brown siltstone interbedded with red brown sandstones. Bedding thickness varies from 10s of cm to sub-mm. Soft sediment deformation common in part. Sandstone is predominantly very fine to fine, occasionally medium to coarse. Some calcite and anhydrite laminae to 3mm thick. Vughs are 1-2cm diameter appear at about 267.5m. The vughs are probably carbonate dissolution cavities and some have a carbonate remnant coating. Increase in natural breaks / joints in core. Vughs disappear with depth."	Characteristically vughy
D	CH003	277.5	293.5	DD	siltsone	claystone	"SILTSTONE: Predominantly red brown to mottled with pale grey lenses and blobs. Common partings along bedding/ laminae and common angular jointing and fracturing. Grades to claystone in places. Grey siltstone / claystone becomes horizontal, beds to cm scale with depth (1cm+ in parts). Occasional swirling soft sediment deformation textures in intervals several cm thick. Bivalve shell fragments in places. Fining downwards to CLAYSTONE in general. Carbonate cement where deformed/bioturbated. Below 285m calcareous clay/dolomite beds more common. Bedding thickness of calcareous units generally ?1cm. Grey claystone interbeds become greenish grey with depth. Bioturbation occurs in 10-15cm intervals at 1-2 per m. Colouration of red brown siltstone/claystones becomes purplish with increasing depth."	Gradational siltstone to claystone. Soft sediment deformation could be bioturbation in parts. Probably worm burrows.
D	CH003	293.5	313.9	DD	claystone	siltstone	"CLAYSTONE: Purple, red brown, pale green grey, mid green grey and whitish grey banded/interbedded claystone with subordinate siltstone and rare very fine sandstone interbeds; multi-coloured. Calcareous bands 0.5->5cm thick are common and add to the banded appearance. Probable diagenetic microfractures with carbonated infill throughout the upper part of the interval result in continuous acid reaction. The richer carbonate bands are bioturbated or deformed and could be classified as a muddy limestone or marl. Core becomes fissile when placed in trays and parting along bedding planes is ubiquitous. "	Carbonate rich unit becoming less calcareous towards base of interval. Multi-coloured bands
D	CH003	313.9	393.8	DD	sandstone		"SANDSTONE: Rusty red brown sandstone with siltstone, claystone and calcareous silty sandstone interbeds. High degree of textural heterogeneity. Entire unit becomes pale to medium green grey from 328.7m with mottled and striped textures. Individual sandstone beds range from very fine to medium to coarse and are well sorted where not bioturbated/deformed. There are occasional beds to 2cm thick of lithic or mud clasts which exhibit a gravelly lag appearance. Carbonate reaction is absent below the depth of inferred oxidation although dolomitic cementation of cleaner sandstones may occur. There is a soft plastic clay band from 330.54-330.75m. Dark grey to black mottled bioturbated beds of mica and black minerals in places to 10cm thick. Hard. Fine grained grading to bioturbated medium grained grey sandstone. Probable black carbonaceous stringers/matrix in bioturbated zones. Predominantly very hard/competent. Some black stylolite looking carbonaceous stringers. Worm burrows becoming more discernable (in places) with increasing depth. This unit is likely to be part of the stairway sandstone; perhaps higher in the stratigraphic sequence than predicted. Occasional thin (<1cm) black shale beds. Some minor carbonate fragments associated with worm burrows/bioturbated zones. In summary a fine grained bioturbated sandstone with siltstone and claystone interbeds. Dark coarse lag unit at base."	Below 328m. Reactive carbonate is absent – possible dolomitic composition in parts. Depth of red brown oxidation terminates at 328.75m. Highly patterned unit in upper sections. Trace diagenetic pyrite in places. Common black stringers are probably carbonaceous stylolite’s. Probable shallow marine/littoral environment of deposition. Stairway sandstone perhaps about 50m higher than predicted
D	CH003	393.8	425	DD	sandstone	siltstone	SANDSTONE: Red brown mottled with pale greenish grey; dark grey bands in places. Texturally similar to above but exhibits marked colour change. Bioturbated sandstone beds with siltstone and minor claystone interbeds. Sandstone is predominantly very fine to fine grained with occasional coarse intervals. Carbonate fragments in coarser patches – possible shell fragments. Sandstone is mainly quartz with some lithic fragments. Grains are generally rounded to well-rounded and well cemented. Core is very firm to hard.	"Colour changes back to red brown from mid grey/green grey. 422-424m coarse to very coarse, possible good porosity"
D	CH003	425	429.9	DD	sandstone	claystone	SANDSTONE: pale grey – pale greenish grey relatively homogeneous; very fine to fine well cemented quartz grains. Minor dark brown and blue green claystone interbeds to a maximum of 15cm thick. Unit is terminated by a 1m thick banded claystone with thin sandstone interbeds. Moderate inferred porosity.	Probably a porous unit
D	CH003	429.9	430.8	DD	siltstone	claystone	"SILTSTONE: interbedded with claystone and sandstone: finely interbedded siltstone, claystone and sandstone ranging in colour from light grey to dark blue grey exhibiting a banded texture."	Potential marker bed
D	CH003	430.8	444.4	DD	sandstone	siltstone	"SANDSTONE: red brown mottled with light to medium grey, medium to coarse grained quartzose sandstone, moderately sorted, moderate visible porosity. Siltstone interbeds and possible sedimentary breccia in final 2m."	Sedimentary breccia
D	CH003	444.4	511.75	DD	siltstone	sandstone	"SILTSTONE: Variable coloured (light grey, mid grey, dark grey, red brown, blue grey, blue) banded siltstone with sandstone and claystone interbeds. Pyrite cubes associated with finer interbeds (diagenetic). Fine to medium grained sandstone beds with cross bedding. Interbeds range from mm scale to +1m thick. Core is predominantly very firm to very hard with occasional thin fractured and loose sands zones. Predominantly very firm to hard core. Some biscuiting of red brown siltstone which deteriorates in tray. Some friable breaks in sandstone with fair visible porosity. Bioturbation 483-484m. Becomes increasingly more calcareous in the matrix towards the bottom of the sequence."	Banded texture. Repetitive interbedding. Some coarse diagenetic pyrite cubes. More carbonate with increase in depth
D	CH003	511.75	600	DD	siltstone	dolomite	"SILTSTONE: Generally as above; multi-coloured and interbedded red brown, brown, blue, blue green, pale greenish grey and pale. Banded siltstone with individual beds ranging from sub-mm to +1m scale in width. The distinguishing factor is the appearance of dolomite. Crystalline dolomite nodules, bands, beds and discordant veins become more apparent along with lenses and blobs. Possible thin (about 1mm thick) anhydrite bands in places. Very fine to fine sandstone interbeds in places. Dolomite percentage increases with depth. Siltstone tends to be more reddish brown with increasing depth. Red brown siltstone is usually micaceous. Core is hard with very few joints although parting occurs at nearly all anhydrite beds. Matrix of siltstone is reactive to acid suggesting carbonate cement/ matrix."	Dolomite appears. Dolomite to 10% of core in places. Anhydrite beds to 1cm thick. From 562m 70-80% of the core is red brown siltstone
D	CH003	600	668.25	DD	siltstone	claystone	SILTSTONE: red brown to dark reddish brown – generally as above with dolomite blobs and nodules and occasional discordant fracture with dolomite infill. Rare anhydrite. Very little to nil reaction to acid grades to claystone (dolostone?) in places. Periodic light grey to medium bluish grey silicified siltstone with some fine bedding textures but an overall massive appearance – very hard / cherty. Some visible crystals of probable silica or dolomite. These intervals are up to 2m thick in places. Although hard and massive looking the blue grey silicified siltstone has common partings at thin fracture zones. Occasional red marbled chert nodules from 636m. Becoming more silicified (harder) and finer grained towards the base of the sequence (grades to claystone). Light grey beds could be cryptocrystalline dolostone/dolomite siltstone/claystone as described in other holes. Brecciation at 645.3-645.5m. Common joint partings along thin black stylotitic bands (possibly bituminous/compressed carbonaceous material)	Jay creek limestone? Decrease in anhydrite laminae. Appearance of silicified/cherty siltstone beds (dolostone?). Decrease in calcareous cement/matrix. Chert/jasper nodules at 636m. Light grey dolostone? Or dolomitic silicified siltstone? (does fizz with hot acid therefore dolomitic)
D	CH003	668.25	673	DD	claystone	siltstone	"INTERBEDDED CLAYSTONE and SILTSTONE: chocolate brown; layered brown and light brownish white thin interbeds. Distinct crossbedded texture. Minor thin (<5cm) very fine sandstone interbeds. Flecks of flattened dolomite nodules to 1.5cm across – usually concordant with bedding. Homogeneous appearance; pale interbeds have a frosted appearance when dry, micaceous."	Possible marker bed
D	CH003	673	755.7	DD	siltstone	dolostone	"INTERBEDDED SILTSTONE, DOLOSTONE and CLAYSTONE: siltstone (red brown, grey, brown) and claystone interbedded with dolostone (grey, grey white, blue grey). Generally as above (600-668.25m). Hard. Common dolomite nodules /blobs – some concordant some disconcordant (fracture fill). Fractures along black stylolites in dolostone when hit/dropped. Chert nodules to 1cm diameter and banded chert/agate laths to 2cm long x 1cm wide from 699m to 704m in dolostone. A homogeneous medium to dark grey silty claystone occurs from 720-726.6m – may be useful as a marker bed. Coarse bladey anhydrite in places in dolostone beds. Vughy chert band 5cm thick at 755.5m"	Similar to overlying sequence. Chert nodules and fragments from 699m
D	CH003	755.7	772.5	DD	silstone	halite	"Halite fracture fill in greenish pale grey to dark greenish brown siltstone. Fractures to 8mm wide. Fractures grading to vughy red brown siltstone interbedded with thinly laminated / bedded, fractured and occasionally vughy dolostone. Halite has impregnated the fractures and vughs to form a halite “stockwork”. Halite is initially orange in colour but grades to transparent, translucent brown with depth."	First halite shows “salt stockwork zone”. Zone of transition
D	CH003	772.5	806.8	DD	halite	silstone	"HALITE: interbedded and interspersed with brown siltstone to claystone and pale dolostone laminae, fragments and inclusions. Halite ranges in colour from yellowish orange to red brown to dark brown to whitish, transparent and glassy. Some halite castes are present in places. In the upper portion of the sequence dissolution or hydraulic abrasion has reworked some or all halite from sections of the core. Notable clean, clear halite zones include 793.9-795.3m (clear, massive) and 803.3-805m (frosted to translucent to transparent off white)."	Dirty halite with occasional pure sequences to 1.7m maximum thickness. Coral like/marine encrustation appearance is commonly seen in the ‘dirty halite’ beds. Approximately 75-85% halite in the unit
D	CH003	806.8	817.15	DD	siltstone	dolomite	"DOLOMITIC SILTSTONE: Predominantly hard dolomitic laminated tan to grey to blue grey to pale grey siltstone grading to claystone. Occasional thin dark brown to black carbonaceous/coaly siltstone laminae <1cm thick. Vughy in parts for tens of cm. Some halite impregnation of vughs, fractures and breccia-like patches. Calcitic laminae in minor part. Faint bituminous/hydrocarbon odour associated with carbonaceous and some vughy sections. Becomes more calcitic (probably cement) with depth – grading to silty limestone/marl. Halite impregnations at base of unit (bottom 0.5m) into joint and vughs."	Rod string broke at 807.5m depth; 300m retrieved with the remainder being fished out and retrieved during the day. Halite at base
D	CH003	817.15	843.54	DD	halite		"SILTY HALITE / HALITE: red brown, brown, clear waxy yellow to transparent halite interbedded with red brown siltstone and occasional pale blue grey laminated dolostone. Halite content 75-90%. Similar skeletal/marine texture where siltstone rich as above (772-807m) Purish halite from 819.6-820.9m (transparent to translucent yellowish brown); 828.5-832m (waxy); 841.5-842.5m (sugary orange brown) – thin stylolites of anhydrite (?) within the purer halite sections. Silty “inclusions” in the dirtier halite sections. Hole finishes in transparent/semi-transparent halite with red brown silt inclusions. Some opaque orange halite (?) to 10cm width in places"	Trace elemental sulphur. Some completely glassy and prismatic zone of halite (<10cm wide). Hole abandoned at 843.54m due to core barrel assembly stuck at bottom of the hole
D	CH001A	0	6	MR	sand		SAND: Red ochre dune sands - unconsolidated	
D	CH001A	6	9.3	DD	sandstone		SAPROLITIC SANDSTONE: red brown mottled pale grey clay rich very fine to fine grained clayey sandstone	
D	CH001A	9.3	154.5	DD	sandstone		"SANDSTONE: Red brown, ochre, brown, pale grey, grey sandstone. Mottled, banded, blotchy, spotted, banded very fine to fine grained well sorted sandstone. Firm to hard well cemented with clay matrix, Sporadic calcitic cemented beds/ laminae in parts. Grains are predominantly quartz with mica, lithics and black opaque minerals in parts. Silty laminae in places grading to siltstone interbeds. Bedding thickness ranges from mm scale to decimetre scale – repetitive. Siltstone laminae/interbeds increasing towards bottom of sequence."	
D	CH001A	154.5	334.5	DD	sandstone		"SANDSTONE: Pale grey interbedded with red brown medium to coarse sandstone – predominantly medium grained. 187-222m interval has common to abundant claystone and siltstone laminae and interbeds. Occasional inferred aquifers at natural partings in core with coarse grains – e.g. 321m. Some narrow soft clay bands (see geotech log). Becoming finer with depth, grades to siltstone (red brown) in places. Some grey units several metres thick."	Aquifer? 321m
D	CH001A	334.5	343.5	DD	siltstone	sandstone	INTERBEDDED SILTSONE AND SANDSTONE: Predominantly red brown to brown interbedded siltstone and very fine to fine grained sandstone with common clay filled vughs/flattened voids. Core commonly breaks at vugh/void locations. Some soft sediment deformation textures. Calcite cement and vugh lining is common in places. Vughs could be bioturbational. Grades to claystone beds in parts.	Clay filled voids in places. Vughy with clay filled cavities – breaks easily
D	CH001A	343.5	390	DD	claystone	sandstone	"SILTY CLAYSTONE: Red chocolate brown; mottled, spotted and banded medium bluish grey in parts. Homogenous textured claystone. Flaky in parts – breaks along bedded laminae. Very hard in parts. Thin (<5cm) beds of angular to sub angular clasts which form a sedimentary breccia in places. Occasional thin interbeds of medium grained sandstone. From 352-357m greenish bands of claystone and soft plastic clay occur to several cm. Core discs and is sub-fissile. Assumes a banded texture. Some off-white bands. Vertical/discordant calcite veins from 361-363m. Becoming tightly banded and calcitic 359-373m. Sandstone interbeds to 0.5m (medium – course grained, poor to moderate sorting) begin at 370m and continue to base of unit. Fossil rich bed 0.15m thick consisting of mollusc shell fragments (dolomitised) at 377.3m. Green bands from 352m with some soft plastic clay (smectite?)"	Rich red chocolate colour – noticeable colour change. Purplish in parts
D	CH001A	390	453	DD	sandstone	siltstone	"SANDSTONE interbedded with SILTSTONE: greenish grey, grey, off white, dark grey interbedded sandstone and dolomitic siltstone/dolostone. Distinct “camouflage” texture as seen in previous hole. Beds from mm scale to decimetre scale. Sandstone is predominantly very fine to fine grained and firm to very hard. Siltstone is dolomitic. Bed disruption due to bioturbation is common. Sandstone becomes proportionately more dominant with depth. Well cemented with probable dolomite and silica cement. Sandstone is predominantly well rounded very fine to fine quartz grains with some lithics and common black opaque stringers. Becoming more massive in placed with depth; medium grain size and well sorted quartz grains more common with depth. Black very fine grained carbonaceous rich bands in places with silty interbeds. Some dark grey siltstone beds to 1m thick. Pebble dyke/breccia 0.3m thick at 432m – contains disseminated pyrite. Narrow breccia bands in places thereafter to 442.5m. Good inferred porosity in strongly disked zone 446-447.6m. Worm burrows becoming more distinct with depth."	"Fossils, bioturbation and distinct ‘camouflage’ texture or pattern. Siltstone around 429m as in CH003. Breccia as in CH003. Possible aquifer at 446m"
D	CH001A	453	502.2	DD	sandstone	siltstone	"SANDSTONE with interbedded SILTSTONE: Generally as above with a colour change in the camouflage pattern to a more reddish brown overtone. Arguably more siltstone interbeds. Some worm burrows are vughy. Mottled red brown with greenish pale grey blotches and bands. Pale grey green relatively homogenous fine to coarse grained sandstone unit with multiple/ drill breaks/discs/biscuits from 481.6-490m possible aquifer zone. 493-501.3m is predominantly coarse red brown (hematite stained), rounded and well cemented quartz grains – minor bioturbation and relatively homogenous. This may be a basal sandstone unit. Interbedded with banded siltstone in final metre. Overall a non to weakly calcareous unit."	Colour change to predominantly red brown. Possible aquifer zone 481-490m. Generally non-calcareous
D	CH001A	502.2	607	DD	siltstone	sandstone	"SILTSTONE: banded/laminated multi-coloured (brown, green, blue, grey, yellow) siltstone. The initial finely laminated (mm scale) siltstone beds are calcareous – probably calcitic cement. Intermittent fine to medium grained sandstone beds (decimetre down to cm scale). Becoming weakly to non-calcareous with depth – probably becoming dolomitic as cement is hard and carbonitic in appearance. Interbedded dark red brown clastic siltstone with paler grey/green/blue dolostone/dolomitic siltstone – paler units are harder. Minor bioturbation in places. Dolomite patches, blebs and nodules appear at approximately 572.5m, narrow veins concordant with bedding also begin. Occasional discordant dolomite veins. From approximately 555m crystalline dolomite becomes apparent."	Calcareous initially. Becomes dolomitic with depth “dolomite/ dolostone has arrived” Dolomite veining appears 555m. 568.8m orange salt like mineral (not halite) in a narrow (<1cm) band. Could be stained dolomite
D	CH001A	607	772.1	DD	siltstone	dolostone	"SILTSTONE: Interbedded red brown and pale bluish grey units. Red brown is siltstone and pale unit is dolostone. Only occasional multi-coloured laminae – predominantly decimetre scale and repetitive beds. Common dolomite blotches, veins (discordant) and laminae (concordant), probably 1-5% of core mass. Red brown clastic siltstone grades to very fine grained siltstone in parts. Minor calcareous laminae in parts. Chert nodules appear 672.5m. Natural breaks/fractures occur along narrow dark styolites in dolostone. Dolostone beds become hard/partially silicified with depth. Approximately 728m fractured dolostone with chert and dolomite fracture fill. Fairly homogeneous red brown siltstone 720.5-725m "	Interbedded siltstone and dolostone (dolomitic siltstone). Jay Creek Limestone? Brecciated dolostone at 633.5m (0.5m wide) in a red siltstone matrix. Chert is banded and agate-like in places. Possible marker bed 720.5-725m
D	CH001A	772.1	780.75	DD	claystone		SILTY CLAYSTONE: Dark grey to medium grey finely laminated claystone very similar in texture and colour to 720-726m interval in CH003. Anhydrite blotches to 2cm diameter abundant in final 1.5m. Secondary gypsum growth post drilling (worm like fibrous crystals).	"Coarse, bladed anhydrite and secondary gypsum common"
D	CH001A	780.75	825.3	DD	siltstone	claystone	"SILTSTONE: red brown to dark brown laminated siltstone grading to silty claystone; micaceous in part. Interbedded with pale grey dolostone – homogeneous and finely bedded in parts – some coarse anhydrite crystal clusters/aggregates visible in dolostone 10cm chert at 799.8m – fractured; also a large nodule at 807.4m. Appearance of vughy fractures in dolostone at 807.4m, halite (orange and coarsely crystalline) appears as fracture fill at 811.5m. vughy red siltstone with halite matrix in parts 818-825.3m"	Halite at 811.5m
D	CH001A	825.3	860.5	DD	halite		"HALITE: mid brown, reddish brown, translucent, coarsely crystalline secondary halite with skeletal residual dolostone and pitted and irregularly bedded anhydrite, dolostone mix. 75-80%+ halite. Commonly red brown with siltstone fragments. Very similar textures to CH003. (Hydrocarbon (oil) shows in salt 834.3-835; 840.25-840.75; 849m. introduced from drillers in core barrel). Clean looking salt intervals at 843.5-844.6m and 846.1-848m"	"Dark grey brown oil/hydrocarbon coating and inclusions 834m, 840m, 849m – introduced by drillers. Halite."
D	CH001A	860.5	870.9	DD	limestone	siltstone	"LIMESTONE/DOLOMITIC SILTSTONE: pale grey, buff to beige to mid grey, finely laminated, open cavities concordant to bedding; fractured in parts (discordant to bedding) grades to fine calcareous claystone in parts. Common halite fracture fill. Oily bituminous fluid (hydrocarbon) oozing from fractures and vughs in places across the unit. Common coarse anhydrite crystals in groundmass in part."	"Limestone, dolomitic at top then grades to limestone. Oil/bitumen shows (legitimate)"
D	CH001A	870.9	882.8	DD	halite		HALITE: as above (825-826) with common swirling and pitted anhydritic dolostone interbeds and inclusions.	Halite
D	CH001A	882.8	887.4	DD	limestone		LIMESTONE: as above (860-870) 0.2m milled/rounded limestone breccia with halite matric support at beginning of sequence. Oil shows	Limestone. Oil Show
D	CH001A	887.4	1079.5	DD	halite		"HALITE: as above, dirty with dolostone bands and anhydritic in part. Cleanish halite from: 889.4-891.3m; 900-901m; 914.3-915.3m; 956-957m; 1012.2-1014m. Calcareous insolubles (limestone fragments and matrix fill) common past 900m. Coarse halite crystals (cm scale) with common anhydrite, dolomite calcitic siltstone and silt. Dolostone band 15cm wide at 978.1m and 957m salt impregnated dolomite 966.7-968.5. Reddish pink haematite staining of halite common in parts. Becoming sandy and silty at base of unit."	"Mud loss at 893.4m – no returns, regained after hole was treated. Below 1000m salt becomes progressively dirtier/siltier compared to upper section"
D	CH001A	1079.5	1083.4	DD	halite	sandstone	"HALITIC SANDSTONE: Red brown, beige to grey swirls in part. Silty salty sandstone with swirling dolostone and anhydrite inclusions/vertical beds. Sand and silt content increases to > 75%. Poorly sorted very fine to coarse quartz and lithic grains with silty and halite matrix. Halite impregnation and occasional bands."	Rapid transition to sandy/silty layer
D	CH001A	1083.4	1086	DD	halite		"HALITE: Dirty reddish brown, translucent coarsely crystalline halite with 0.5m relatively pure but hematite stained interval."	Halite – re-entry
D	CH001A	1086	1090.4	DD	limestone	sandstone	"SANDY LIMESTONE/CALCAREOUS SANDSTONE: Pale to medium grey banded and finely bedded limestone grading to a calcareous sandstone/siltstone with depth. Becoming possibly more dolomitic with depth. Chert nodules at start of unit. Fractured with halite fracture fill (orange) and concordant bands (also orange as well as acicular and translucent). Limestone changes to very fine and fine grey, well sorted calcareous sandstone which grades to calcareous siltstone in parts. A limey unit."	Limestone unit
D	CH001A	1090.4	1091.8	DD	sandstone	siltstone	"SANDSTONE: Mid grey homogenous very fine to fine, well sorted silty sandstone grading to siltstone. Calcareous and probably dolomitic cement. “halite veins”"	Calcareous sandstone with halite stockworks
D	CH001A	1091.8	1092.4	DD	sandstone	siltstone	BRECCIA: Rounded clasts of pale grey calcareous sandstone and red brown silty sandstone in a halite matrix support.	
D	CH001A	1092.4	1094.66	DD	sandstone		SANDSTONE: Red brown very fine to fine grained sandstone with a silty matrix. Grades to siltstone. Salt bands/veins to 5cm (1 band per metre).	
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