LITHOLOGY REPORT - Detailed -

Transcription

1 (m) (m) Lithology Sample # Length Casing Minor Interval: G Casing through gravel or overburden (Gro gravel with rocks clearly unrelated to bedrock (pink granite for example), nice and rounded Gabbro 13GS green coarse-grained gabbro with white/greyish leucoxene, yellowish plag (possibly also tremolite? Probably plag). Sheeted carbonate +/- qtz veinlets (usually few mms or less) consistently through section measuring approximate 40/180 to 44m. Porphyritic texture is common, with larger phenocrysts of what looks like plagioclase feldspar (pale, laths). Mineralization is pyrrhotite and chalcopyrite is localized blebs associated with the carbonate sheeted veinlets usually. Core is a bit blocky towards the top of the hole. There are isolated patches of chlorite alteration, usually around qtz/carb veinlets. Around 46m there is a few ms of section that looks almost faulted, but curved- looks a bit like what it would look like if you tried to fold a gabbro, with some elongation in the minerals and a curving fracture (starts and ends on the same side of the core) with lots of little slivers of fracture and finer material that is not quite gouge. Nice chill margin at bottom of unit (lighter green, fine-grained), but irregular and looks like it could be a later gabbro along contact? Not sure F WM orangey hematite powder on fracture PCH patch of pure chlorite in gabbro around MS fractures PCH M patch of 100% chlorite aruond qtz veinlet potassic alteration in veinlet and in halo int surrounding rock, irregular and patchy, orangey pink color a bit of pink ksp in sheeted veinlet. 13GS GS Apr-13 12:18:21 PM Page 1 of 53

2 (m) (m) Lithology Sample # Length VN M chlorite veinlets occur mostly as fracture infill, sometimes parallel to local sheeted veinlets VN MS infilling fractures / 0.2/B / 0.1/B / / / po and cpy found in proximity to carbonate sheeted veinlets as well as other small scattered veinlets through section CL 42 cleavage along sheeted veinlets F 30 fractures and strange almost fault with curved fractures and slivers of crumbly rock, phenocrysts in dyke are curved along it, looks like splintery fold nose at (other side is 40/202) F 40 40/202 see above F 12 splintery intersecting fractures with parallel elongation in leucoxene F 8 long shallow fracture with irregular end so can't really get beta, probably somewhere in the neighborhood of F 20 fracture low angle a bit irregular FOL 45 foliation in small interval of gabbro between two fractures in the core, most obvious in white minerals CRN sheeted carbonate veinlet are crenulated here. Also a very shallow foliation in the gabbro itself, near 0 deg TCA F 32 healed fractures with chlorite infill veins, lots of orientations but sheeted veinlets in this orientation are common approximately; also some more in orientation of the carboante sheeted veinlets but not. NOT LISTED IN VEINS CATEGORY BECAUSE OVERLAPPING LC /260, but wavy, looks like maybe a separate lighter gabbro at the very end of unit. 04-Apr-13 12:18:22 PM Page 2 of 53

3 (m) (m) Lithology Sample # Length Carb/Qtz sheeted mostly carbonate veinlets consistently ~ 40/ /178 at 14.6m. 47/170 at 35.7m. 30/195 at 40.7m Qtz white qtz vein with dark grey mud. ~2cm wide Carb/Qtz approx. same as others in this unit Other one at 25.25m (10/070), one at 34.5m (9/025), thin veinlets of pale greenish yellowish hard material looks like healed fractures with halos maybe? Also sheeted carboante veinlest here too Carb/Qtz 30/195 also Carb/Qtz with ksp and radiating irregular potassic alteration, pinky orange, some kind of green angular teeth on edges, maybe chlorite but looks wrong and parts are hard. But possbile? Other low angle fracture, broken along filled in mostly chlorite and qtz Carb/Qtz also 22/205, two overlapping ones. Carbonate a bit iregular with chlorite, diameter <1cm Carbonate Carb/Qtz carb qtz with chlorite islands, possible breccia pieces? Carb/Qtz all approximately parallel. Also 34/220 at 61m Qtz/Carb large-ish white qtz vein with chlorite and some carbonate in top section, aprox, 3cm wide, measured as reprted. Afterwards irregular fracture infill of carbonate and wider fracture infill puzzle of green chlorite Qtz 1-2cm diameter qtz with some carb and then lots of chlorite Carb/Qtz also meas 25/205, 28-44/220 where crenulated; 31/205 95m (orientation lines for last 3 boxes very wrong); 45/ m; 111.5m; 113.6m with a bit of shearing and offset Other look like bleached gabbro along healed microfractures? Several parallel wavy lines 04-Apr-13 12:18:22 PM Page 3 of 53

4 (m) (m) Lithology Sample # Length Minor Interval: c Massive mudstone; argillite 13GS actually more of a siltstone. Looks like more wacke-like that grades into siltstone/mudstone, on lower contact of huge gabbro dyke. Last 1.5m of unit is especially silty/muddy; has that kind of conchoidal fracture cleavage seen in mudstones, but grain size is not super fine and rock is not too too soft- not very altered (first bit near gabbro dyke contact is a bit chloritized and softer). Includes a small gabbro dykelet ( m) that is noticeable lighter in color than the dark, massive fine-grained dark grey sediments. Dyke is a medium dark taupe color, lighter on the edges, with clear phenocrysts of something dark grey and prismatic in nice porphyry texture (aphanitic matrix). Mineralization is chalcopyrite and pyrrhotite dissem a bit connected with fractures in top section of unit mostly, probably tied to gabbro dyke presence. Drill-induced breakage along area near dykelet is parallel to the PCH a few patches of chlorite banding or halo WM aound fractures, esp prominent nearer contact / 0.2/DI / 0.2/DI / / / cpy and po near gabbro contact, around S S a few scattered chert boudins UC 15 alpha deg TCA. Contact is a bit irregular and possibly a little piece of gabbro younger than most of unit is at actual contact F 30 fracture zone with multiple irregular parallel fractures with smller pieces a bit crumbled in between them BOUD a subtle dark colored chert bed is boudinaged, low angle (<20 deg tca) but can't really measure properly F 20 fracture along alteration halo of chlorite with pyrrhotite chunks (vein??) UC 30 upper contact of gabbro dykelet. Lower contact is pretty much parallel, as are the breaks in the rock nearby (engineer interpreted as mechanical by drill) 13GS Apr-13 12:18:22 PM Page 4 of 53

5 (m) (m) Lithology Sample # Length Minor Interval: Gabbro wee gabbro dykelet. Taupe color, aphanatic matrix with dark grey prismatic phenocrysts in porhyry texture, lighter color on the edges. Phenocrysts look like the right habit for feldspar and a few have lighter patches. Contact is irregular with mudstone on either side, not totally linear, a bit wavy. Looks like slight foliation in almost direct opposition to contact orientation is visible in the matrix dc Magnetite bearing silicate iron format 13GS absolutely horrible specimen of iron formation. Dark green rock with poorly developed sandy bands of dark green amphibole/chlorite and section with interstitial magnetite and others with interstitial pyrrhotite that looks almost exactly like the magnetite in setting and shape. The sections with magnetite are relatively coarse grained ( m) but other sections are a bit more variable, although none super fine-grained. Three distinct sections of qtz flooding/silicification/insidious veining P M INT M INT MS carbonate is weak, just a few infills, most infill in qtz. Large qtz veins and accompanying pervasive silicification at: m (this maybe chert bed? Other two definintely qtz veins and silicification), m (qtz w chlorite), m (d / 1.5/IN T / 0.01/ DIS / / / trace cpy only. Pyrrhotite around shear type things, qtz infill a little bit, but a lot is interstitial in the same way the magnetite is, either replacing the magnetite or diagenetic UC 17 either 17/015 or 30/ FOL 22 foliation of chlor in qtz vein, alpha ranges deg TCA 13GS GS GS GS GS Apr-13 12:18:22 PM Page 5 of 53

6 (m) (m) Lithology Sample # Length BD 16 very approximate. VERY APPROXIMATE Carbonate only maybe 2. look like the ones in the gabbro Qtz pervasive qtz-maybe from chert bed? Dark colored. Pervasive Carbonate 25-50/165; 46/ Qtz pervasive silicification with some chlorite Qtz silicification pervasive, with some sheeted carbonate veinlets like the rest of them in this section, approx 45/ Carbonate sort of sheeted carbonate veinlet infill, but more messed up looking than the other sheeted veinlets in the unit. Looks like beta angle should be around 180 deg TCA but can't say because veinlets don't show up on bottom of core c Interbedded greywacke; siltstone; mu 13GS siltstone to wacke dark grey massive. Fracture planes don't have that conchoidal fracture look that the earlier mudstone/siltstone unit had. Slightly greenish at times BD 20 approximate alpha. Can barely make this out d Silicate iron formation 13GS contacts are very approximate. Interbedded sandy iron formation, dark green amphiboles, interstitial pyrrhotite and a bit of chalcopyrite (likely due to proximity to gabbro). Medium grained. Non-interstitial pyrrhotite around some carbonate/qtz infill (including sheeted veinlets). 13GS Apr-13 12:18:22 PM Page 6 of 53

7 (m) (m) Lithology Sample # Length INT M INT MS possible sericite alt with some of the chlori it has a bit more of a pale colo and sheen than just chlorite ysuallly does / 1/INT / 0.5/DI S / / / cpy po around veinlet infills, but lots and lots of po just interstitial, looks like position magnetite may have been in elsewhere BD FOL 35 approx, hard to see, amph line up in bed Carbonate kind of hard to measure beta a Greywacke 13GS massive wacke, has sheeted qtz veinlets that look like the thin carbonate ones from previous units, possible some carbonate in with them. Fine-grained and massive. Qtz veinlet at 129m 12/265, a bit of chlor around it. 13GS GS GS BD 10 possibly bedding? Qtz/Carb like previous sheeted veinlets except mostly qtz and maybe no caro 04-Apr-13 12:18:22 PM Page 7 of 53

8 (m) (m) Lithology Sample # Length Qtz qtz veinlet medium grey to white translucent with a little bit of chlor alt along seams a Phyllitic mudstone 13GS Phyllitic foliated mudstone with low angle fault zone, includes gouge, splintery cleavage. Dark dark grey in color. Can see a bit of bedding near contacts with more coarse sediments on either side / / / 0.2/S HR / / / UC 25 UC bedding FOL 28 dominant foliation in mudstone FLT 7 angle take from still intact rock at top of zone with long splintery fracture filled with gouge, looks like beta angle may wobble back and forth 180 deg, fault zone is filled with splintery fractured pieces of core that can't really be put back together, thin gouge zones along maybe fractures G 7 see above FOL BD LC 20 13GS GS GS a Greywacke 13GS massive wacke gradual transition from previous unit. Some qtz veining, thin kind of sheeted DARK grey qtz veinlets few mms wide at most. 13GS Apr-13 12:18:22 PM Page 8 of 53

9 (m) (m) Lithology Sample # Length UC F 22 low angle fracture a bit irregular a few pieces Qtz DARK GREY thin qtz veinlets mostly sheeted a few at different angles. Very linear d Silicate iron formation 13GS poorly banded poorly developed sandy iron formation. One section that has po mineralization >2% m; a tiny bit of cpy with this in a crack. Bedding in the mineralized part is very approximately 20/50 (take beta angle with a HUGE grain of salt). Dark colored, coarse-grained, except for when it isn't (amphiboles tend to be coarse, chlorite more in masses in beds/bands). Silicification locally and splintery fragmental angular rubble fracture zone m P S B MS INT MSF WM graphite alteration in some of broken up areas in fracture zone. Occurs with lamina py sometimes / 1/ws / / / / / / 6/BL / 0.5/FF / / / mineralization looks like maybe related to shearing etc? cpy from gabbro? /FF 0.5/S HR / / / / / BD 20 VERY APPROXIMATE beta F 4 low angle fracture zone ranges from angular rubble that can't be pieced dto more intact core with nice amphibole graphie alteration leading up to large qtz vein at unit end. 04-Apr-13 12:18:22 PM Page 9 of 53

10 (m) (m) Lithology Sample # Length Quartz veins 13GS large massive medium grey translucent qtz vein with more minor chlorite infiltrating along cracks and edges. No mineralization FLT fault? Tiny rubble pieces of qtz vein- possibly what gouge would loook like if it were only made of qtz? LC 25 approximate contact with sediments. Broken along contact a Greywacke 13GS massive grey wacke with some scattered qtz veins, chlor alt along veins and fractures, what looks like andesite vein, ending in graphite alteration at a large qtz vein on contact with iron formation with lots of qtz veining below F MS 13GS GS GS F 11 fracture with chlor alteration SHR looks like maybe was some shearing/fracturing at one point here, healed with qtz veinlets, including andesitic vein, see vein comments F 10 splintery wavy thin fractured core all along shallow contact around massive qtz vein and with unit below. 04-Apr-13 12:18:22 PM Page 10 of 53

11 (m) (m) Lithology Sample # Length Qtz 0-14 deg TCA alpha; towards end also 14/ Other chlorite ~1cm thick with a bit of qtz on outside, bluish green color, fracture all along (looks like was maybe fracture fill to start with) Other what looks like a dyke or intrusion of andesitic composition (pale groundmass, nice dark amphibole phenocrysts radiating, looks volcanic) with qtz veinlets with dull luster (cange color from grayer to whiter in center, smooth looking) also involved and intruding along crck sin the dykelet that looks like maybe sheared? All healed Qtz LC. Upper contact is around 10 deg TCA alpha but beta irregular, kind of curves up, never intersects one side of the core all the way through. Mostly parallel to low angle fracturing in graphitic sediments all around it until lower contact with next unit d Silicate iron formation 13GS iron formation with some pyrrhotite mineralization, lots of pervasive qtz veins and some chlorite, low angle zig zag healed breccia vein along fractures m. Coarse grained with qtz-chlorite veining m and m VN MS B S INT WM INT S possible grunerite in center section? Green amphibole fabric with shears invaded with chlorite alteration; this area is the one with aspy flecks ( m) /S 1.5/S 0.1/IN HR HR T / / / / BD 12 banding of chlorite po in qtz-chlorite veins, also intersitially with small shears; aspy specks spotted between m, pyrite also in a strip of blebs near 145m. 13GS GS Apr-13 12:18:22 PM Page 11 of 53

12 (m) (m) Lithology Sample # Length BX F 35 same orientation as above. Start of a zone with zigzag fractures with healed breccia in qtz veinlets within them that have since been fractured open again BX 20 see last F 20 see last BX 20 see last. Also 35/ F 20 see last Qtz listed lower contact with band of chlorite. Greyish white qtz with mats of felty chlorite, some pyrrhotite mineralization Qtz very low angle, otherwise like first vein c Interbedded greywacke; siltstone; mu 13GS massive wacke with a couple small beds of what looks like more silty material, but no younging directions. 13GS BD d Silicate iron formation 13GS similar to last 2d unit, with coarse amphibole/chlorite, qtz veining with chlorite, pyrrhotite mineralization, plus some cpy. Grunerite alteration around vein. Ends on muddy chlorite bed gradational contact to mudstone and then wacke beneath. Mineralization mostly with qtz-chlor vein, outside on edges with grun alteration (grunerite as fuzzy pods) 04-Apr-13 12:18:22 PM Page 12 of 53

13 (m) (m) Lithology Sample # Length / 1.8/B / 0.1/B / / / BD LC 11 same as bedding Qtz UC. Similr to bedding. There are other qtz veinings around but this one is massive qith chlorite mats along cracks etc. grunerite in amphibole masses on edges a Greywacke 13GS massive grey colored wacke with 2d subunit INT MS INT MS 2d subunit with intergrown chlorite-actinolit groundmass and some banded chlorite, wi thin webby veinlets of swirly carbonate whi fizzy fuzzy material thorughout section irregularly / 0.5/S / / / / / a bit of po with 2d subunit only. HR BD 32 in IF subunit SHR assumed based on carbonate infiltration Minor Interval: d Silicate iron formation subunit of 2 within wacke that looks like other 2d seen nearby. Carb alt 13GS GS GS GS GS GS Apr-13 12:18:22 PM Page 13 of 53

14 (m) (m) Lithology Sample # Length Quartz veins 13GS massive qtz vein with minor chlorite along cracks and seams. Extremely shallow contacts on both ends, with upper contact 5/310 with a nice gouge zone along fracture along contact, lower contact is around 3 deg alpha but actually pinches out unevenly within center of core between m mostly (in this section it becomes just a veinlet amidst wacke with mostly chlorite, then biotite, then qtz filling). Pinches out on one side of the core at beta 200, and on the other side approx. 7cm later at beta 030 deg. Minor pyrrhotite blebs in qtz vein but largely unmineralized. Last few cms of pinched out end have the most po. Cpy on fracture 10cm before end, rock is mostly wacke at that point PCH M biotite shows up in big mass after chlorite a very end of vein when it is pinching out in t wacke for ~15cm length along vein. Chlorit mostly at end as well but also along fractur in tz throughoutu vein, any po blebs are usually found in association /F 0.5/B / 0.1/F / / / G 5 along fracture along UC of qtz vein F 5 see above FLT 5 possible bc of gouge, see above UC 5 see above above above LC 3 see main comments. 13GS GS GS c Interbedded greywacke; siltstone; mu 13GS massive wacke, grey colored, interbedded with finer grained darker units 13GS GS Apr-13 12:18:22 PM Page 14 of 53

15 (m) (m) Lithology Sample # Length BD F 21 a few parallel and crossing fractures near end of muddy bed F 29 similar to last, parallel fractures a Phyllitic mudstone 13GS mostly a phyllitic foliated mudstone, however there are two sections with coarser beds, and after m the mudstone is argillaceous and dull, no foliation, instead of phyllitic. Core is moderately blocky through section. 13GS GS GS GS F 12 a few shallow fractures, blocky core BD 25 bedding measured in coarser bed FOL 33 foliation is similar throuhgoutu all phyllitic parts of the unit BD 30 bedding in slightly coarser bed. Minor Interval: c c c Interbedded greywacke; siltstone; mudsto small more coarse beds in overall mudstone same as last Interbedded greywacke; siltstone; mudsto Massive mudstone; argillite mudstone is dull, no foliation, very dark grey. 04-Apr-13 12:18:22 PM Page 15 of 53

16 (m) (m) Lithology Sample # Length ca Sulfide bearing oxide iron formation 13GS mineralized oxide iron formation, with extensive massive qtz-chlorite veining for close to last meter of section. Not all of unit is magnetic, nothing with qtz veining is and it looks like most magnetite has been altered or replaced in other sections but it varies. The relationship between the pyrite/aspy mineralization in the iron formation and the presence of veins at low angles (main qtz-chlor vein at really starts earlier as tiny veinlet down core axis) and low angle bed offsets is very obvious; mineralization radiating from paths of veins and shear/healed fracture lines. Pyrite approx. 5% aspy 0.5%, although as the massive qtz0chlor vein continues down section mineralization almost disappears towards the end of the section since it is no longer iron formation so much as it is just a vein, and mineralization, while found in very minor amounts in the veins, is really very much concentrated in the iron formation NEAR the veining. Minor carbonate present with qtz (or just really not fizzy) in fracture fills, very minor, most of this is first 50cm of section. First 25cm of the section are a bit vuggy and can see white (qtz-carb) with greyer qtz veining, also bedding offset clearly along fracture infill VN MS B S B W B MS weak carbonate only in first 50cm of unit in any appreciable amount; traces later possible. Qtz-fuzzy chlorite veining commo past 167.5m and clearly assoc with mineralization, chlorite also in bands /SH / 0.5/S R HR / / / / /S / / / / / / HR assoc with veining; aspy in euhedral grains in strings semi parallel to core axis mostly m; pyrite in fuzzy bands and along fracture fill, all radiating from areas with obvious veinlets/shear influence. blebs at end of vein mostly BD 32 taken from slightly more competent section of oxide iron formation aat 167.5m 13GS GS Apr-13 12:18:22 PM Page 16 of 53

17 (m) (m) Lithology Sample # Length SHR whole section is sheared (multiple directions; bedding offset greatest seen is approx 3-4cm but inconclusive), at contact with mudstone is most obvious because of fracture infill, later on farther down is more subtle and parallel core axis but still very much present and looks like very related to pyrite mineralization Qtz/Carb fracture shear infill, decreasing as you move down section Other fracture shear filll that is mostly chlorite Qtz massive qtz with chlorite mats partially altered to grunerite within qtz vein, evolving out of chlorite w some qtz veinletes above it a Phyllitic mudstone 13GS mostly phyllitic mudstone with some subunits of coarser material. Fine-grained and foliated with nice sheen on foliation. 13GS GS BD 15 possibly 1c bed afer qtz vein FOL 31 nicely developed CRN crenulation, very very mild, in some sections of this interval, hard to actually measure BD 32 also lower contact Qtz possible vein? Or altlered bed? Qtz with bed/laminae of pure looking chlorite and alternating brown with biotite strips as well 04-Apr-13 12:18:22 PM Page 17 of 53

18 (m) (m) Lithology Sample # Length Minor Interval: c Interbedded greywacke; siltstone; mudsto coarser beds for first 20cm of unit c Oxide Iron formation 13GS interbedded oxide iron formation with medium grained sediments, as well as moderate veining (qtz and carbonate) with nice grunerite alteration in patches and localized mineralization (mostly po). A few sections with nice mostly unaltered magnetite banding. Moderate shearing in most of the iron formation sections of the overall interbedded unit; carbonate fill in cracks with bedding offset not uncommon VN WMB S PCH M B S chlorite is banded as well as interstitial and veinlets. Grunerite patches tend to correspond to less sandy areas and often have the fuzzy fungus pod alteration look t them / 0.5/S / / / / / Structure Maj.: HRType Core Angle Comment BD F 26 one of the more sheeted orientations of fractures healed and filled with carbonate, and associated with bedding offset BD 29 at contact of one sediment subunit BD 20 in nice 2c iron formation BD BD Carb/Qtz one orientation of fracture fill carbonate/qtz veinlets and shears; other orientations too, one more like 20/090 at beginning of section, other a it more sheete d. 13GS GS GS GS GS GS GS Apr-13 12:18:22 PM Page 18 of 53

19 (m) (m) Lithology Sample # Length Carb/Qtz measument from one veinlet twoards bottom of section; most of the others are very irregular, including onee 50cm section with intersecting filled fractures/sheared that are all low angle traveling along the core axis. Also some chlorite in a few Carb/Qtz same as last but only a few, a bit sheeted, very different orientation Qtz also 28/335; sheeted massive qtz-chlorite dark grey veining; actually continues to 177.3m but there are overlapping carbonate veinlets along shear lines that need to be listed in that interval! Carbonate the second group of overlapping veins/veinlets between m; in this interval the carbonate ones are the dominant ones. Carbonate are only a few ms thick at most, qtz-chl are up ~2cm-10cm thick. Carbonate veinlets are generally infiltrating along shear cracks. A chalky pale greyish white color; qtz-chlor veins are darker grey and green and more translucent waxy luster Qtz same as last qtz veins with chlorite listed as sheeted, but only one. Approx 3cm thick Carbonate carbonate thin lines along shear lines,, can tell because of bedding offsets along them by a few cms in nice oxide irion formation Qtz approximate. Vein is like other qtz-chlor ones. Sheared and chlopped off on one side. Minor Interval: a a a Greywacke weird graded start to unit with former mudstone having sharp contact with what looks like a medium grained ligher grey wacke then seamlessly becomes a sandy iron formation ocer the next meter, then nice 2c, etc. Greywacke upper contact graded, lower contact 29/070 Greywacke clastic sediments. Wacke. Gradual contacts no orientations. 04-Apr-13 12:18:22 PM Page 19 of 53

20 (m) (m) Lithology Sample # Length a same as last. Greywacke a Greywacke 13GS clastic sed interbed. Debatable if part is sandy iron formation, all very interbedded here so possible BD dc Magnetite bearing silicate iron format 13GS probably at one point was nice oxide iron formation but unit is altered to grunerite chlorite actinolite and the majority is obscured by a massive qtz-chlor (some changing to grunerite) vein from m. A few faint cracks with filled material possibly carbonate? Seen before massive vein starts. Minor po before massive qtz-chlor vein VN W B MS B S B S P S PCH S PCH M chlor is in big fuzzy mats with qtz in massiv qtz vein, but grunerite is from chlorite turnin into grunerite, so in little fuzzy pods usually / 1/SH / / / / / R / 0.1/S HR / / / / / trace in vein BD 24 cross cut by a few litle shear lines, not many 04-Apr-13 12:18:22 PM Page 20 of 53

21 (m) (m) Lithology Sample # Length Qtz massive grey translucent qtz with mats of chlorite, some chlor going to grunerite, altering IF above at ending at clastic sediments c Interbedded greywacke; siltstone; mu 13GS clastic sediments, can see a little muddy bed. Grey and fine-grained BD 12 beta really hard to see BD c Oxide Iron formation 13GS a mix of former oxide iron formation, massive qtz-chlorite veining, and clastic sediments. Alteration is usually nice grunerite alteration, with actinolite and chlorite. Carbonate veinlets and fracture infill are not uncommon. Bedding is uniformly low angle, <25 deg TCA is common. Carbonate alteration is usually limited to fracture fill but sometimes it replaces beds within the iron formation in places where the beds in question intersect with a fracture filled with carbonate. It is very obvious, sometimes on the section of bed to one side of the fracture will be fully replaced with carbonate, or almost fully VN WMB S B M B S carbonate as infill in fractures as well as replacing beds in iron formation that intersecti with infilled fractures. Grunerite alteration often fuzzy pods. Chlorite in band as well as translucent grey qtz veins / 0.5/S / / / / / local po associated with shear/fracture fill HR material. Never in clastic sediments. 13GS GS GS GS Apr-13 12:18:22 PM Page 21 of 53

22 (m) (m) Lithology Sample # Length Sometimes with mafnetite replacing BD BD BD 30 possibly after a fold nose? Also a qtz-chlor vein between this and last bd measurement BD 22 in carbonate replaced beds BD 10 in clastics BD Qtz qtz-chlorite vein, grey and green Carbonate fracture filling veinletr lines of carbonate locally; usually mild to moderate; strongest m moderate strong. Minor Interval: a a a clastic interbed same Greywacke Greywacke Greywacke combination of clastic interbed and sandy iron formation. Very low angle a Greywacke 13GS clastic interbed >1m diameter. Same as other minor units in IF to both sides. Fine-medium grained and grey. A bit patchy looking color-wise. Carbonate veinlet 44/210 at m. 04-Apr-13 12:18:22 PM Page 22 of 53

23 (m) (m) Lithology Sample # Length c Oxide Iron formation 13GS a mix of oxide iron formation, former oxide iron formation, massive qtz-chlorite veining, and clastic sediments. By volume most of it is probably oxide iron formation or WAS oxide iron formation before veining and alteration so called oxide iron formation / 2c. Alteration is usually nice grunerite alteration, with actinolite and chlorite. Carbonate veinlets and fracture infill are not uncommon. Mineralization is extremely variable and seems to be highly dependent on the level of veining and shearing/alteration as well as the presence of iron formation; it increases down section generally. Bedding is uniformly low angle, <25 deg TCA is common. Unaltered oxide iron formation is extremely magnetite rich, probably >50% magnetite. Pyrrhotite is the most common sulfide mineralization; pyrite is seen intergrown with it sometimes, and arsenopyrite is rather abundant locally (see mineralization intervals), with the most arsenopyrite often in very altered rock that is in very close proximity with more unaltered oxide iron formation and lots of veining both qtz-chlor and carbonate. Carbonate alteration is usually limited to fracture fill but sometimes it replaces beds within the iron formation in places where the beds in question intersect with a fracture filled with carbonate. It is very obvious, sometimes on the section of bed to one side of the fracture will be fully replaced with carbonate, or almost fully VN W B MS B S B S VN S VN S VN MS VN M B WM B WM less altered oxide irion formation with veini both qtz-chlor and carbonate infill. Mineralized with smapp bits of aspy and more po` VN M B MS B M B M carbonate both fracture filling and replacing entire beds in the iron formation. Overall color is a medium green. Actinolite/chlor is turning into grunerite, fuzzy pod texture VN S VN S 30cm section of pervasive chlorite only VN W B M B WM B WM 13GS GS GS GS GS GS GS GS GS GS GS GS GS GS GS GS GS GS GS Apr-13 12:18:22 PM Page 23 of 53

24 (m) (m) Lithology Sample # Length VN M B MS B M B M sections of pervasive chlorite alteration: m intense chlorite; m q chlor alteration strong; m stron BD 27 at contact chlorite alt with carbonate; m UC 27 see last pervasive chlorite with magnetite and SHR 10 dominant shear direction; infiltrating fracture pervasive filled with sheary carbonate. Ma carbonate, bedding displaced around 1cm SHR 34 fault? Also fractured; has white carbonate infill, acts / 0.5/S / / / / / as clean contact cutting bedding between IF and seds HR above / 0.5/B 0.2/E / / / / a bit of po replacing magnetite, but BD 4 right between veins ED uh TONS of magnetite. One euhedral aspy BD 20 grain 1mm diameter in iron formation in BD 3 up to alpha ~10 magnetite deg TCA bed with FF shearing between SHR 25 bedding offset along two qtz-chlorite fracture filled veins. carbonate - qtz vein / 0.5/S / / / / / SHR 27 fracture filled with carbonate, chlorite alteration is HR prevasive below it /S 0.5/S 0.2/S / / / / with carbonate bed alteraetion above qtzchlor vein HR HR BD HR / 0.5/S SHR / / / in BD / measurement / above bedding is offset up to HR 1cm along shear lines fracture filled with carbonate /S 0.5/S SHR / 19/ / / / HR HRSHR 40 FF with carbonate, very thin thin thin lines /S 0.2/S F 1.5/E 40/ / see above. / Sheeted / euhedral apprximately arsenopyrite with iron formation HR HR SHR uh 45 and carbonate infill veining, lots of nice magnetite bands with fuzzzy SHR just generally. Chlor grunerite/actinolite alt. carb FF. bands. More aspy SHR 24 FF with carbonate than showing any other bedding sulfide. offset Seen in little BD 21 cut by SHR in previous <1mm grains measurement along thin carbonate infill, along mt beds, and in la SHR alpha /S 1/SH 0.2/S / / / / aspy flecks with magnetite bands HR R SHR HR 54 thin shear lines across 204.3m shallow bedding /S 1/SH BD 0.2/S 15/ / aforementioned / / aspy shallow trace bedding. grains Magnetite in magnetite beds iron with HR R HR aspy flecks. formation wth carboante veinlets around F 5 low angle fractures 208m. along core in mostly seds area BD SHR whole section is a bit sheared, most intense near with pseudo brecciation and around 208m with carbonate shearing and bedding at a few different angles intersecting 04-Apr-13 12:18:22 PM Page 24 of 53

25 (m) (m) Lithology Sample # Length Carbonate approximate only, quite a bit of variation Qtz translucent grey qtz + chlorite mats Carbonate veinlet as fracture fill along shear that separates iron formation from seds Qtz 3cm thick grey qtz and chlorite Qtz same as last, qtz chlorite Qtz two qtz-chlorite veins approx at least 4cm thick cutting carbonate altered bed/bands in bedding Carb/Qtz carbonate infill shear vinlets that cross cut other veinlets and bedding and are probably souce of local carbonate bed replacement Qtz/Carb see last. Diameter approx 1.5cm Carb/Qtz a veinlet of mostly carbonate with qtz, some chlor and po on edges, 2cm diameter Qtz massive qtz with chlorite. Chlorite altering to grunerite on edges in many sections Carbonate fracture fill thin white veinlets; forms clear boundary between chlorite alteration below (qtz-chlor veining below) and iron formation above Qtz discontinuous translucent qtz veining with chlorite and chlorite alteration Carb/Qtz incredibly thin dark fracture lines (chlor alt on sides, amphibole?) with thin seams of frature fill carbonate semi-parallel, overlap other FF Carbonate a bit thicker carbonate than last, overlaps/cross cuts Carb/Qtz thin FF along shear Carbonate fracture filll but wide, up to 2cm wide, and with pyrite mineralization along edges, lots of chlorite alteration around it, along shear Carb/Qtz sheeted carbonate looks mostly semi parallel but a lot are not nicely linear and rather more pseudobrecciated looking. Looks like mineralization is related to many, especially when inside aspy zone, they also are along shears 04-Apr-13 12:18:22 PM Page 25 of 53

26 (m) (m) Lithology Sample # Length Qtz qtz-chlorite veins, at least two but irrefular. There is also qtz0chlor veining at m that overlaps with carbonate veinlets, near aspy mineralization Qtz low angle meanders around core sometimes more massive, qtz with chlorite jiust like others but in this area theer is more chlorite alteration, way less banding, no magnetite that you can see really so rock character is quite different, not really much mineralization Carb/Qtz 30-62/170, carbonate and qtz veinlets and fracture fill, chlorite alteration, py mineralization, pseudobrecciation with the carbonate infill, looks like multiple instances of fracture fill and shearing? Mylonitic?? Carbonate very approximate, these are not nice and linear, fracture fill, a bit irregular. Stops during clastic sediment subunits. Low angle and more abundant carbonate with pseudo brecciation at m, 206.4m m (looks like beds replaced with carbonate combined with carbonate fracture fill and some extra shearing and more fracture space to fill than usual in combination with excessive chlorite alteration) Minor Interval: a Greywacke clastic sed interbed. Mediume fine grained medium grey color a Greywacke a Greywacke a Greywacke 04-Apr-13 12:18:23 PM Page 26 of 53

27 (m) (m) Lithology Sample # Length a Greywacke 13GS massive clastic sediments medium grained, chlorite alteration for last 2m, not really any banding P WM P M up to right before iron formation. Carbonate in line with beddng 212.5m 13GS GS BD 27 in line with little chery thing dc Magnetite bearing silicate iron format 13GS magnetite banded iron formation with chery beds, carbonate infill, lots of chlorite alteration, po and py mineralization assoc with shearing and carbonate. Carbonate bed replacement. Possibly beginnings of grunerite alteration present but uncertain VN W B MS B W /S 0.5/S / / / / / HR HR SHR 35 approx sheeted shear fracture fill but cut off by other fracture fill moderate ot mild BD SHR 40 carb fracture fill approx orientation; arconatein beds is in line with bedding Carbonate not all sheeted. Some carbonate in beds. All fracture fill looks like. 13GS Apr-13 12:18:23 PM Page 27 of 53

28 (m) (m) Lithology Sample # Length c Interbedded greywacke; siltstone; mu 13GS interbedded phyllitic mudstone (most prevalent) with coarser grained wacke siltstone etc. mudstone is foliated. Very few fracture fills (vuggy white qtz <1mm), some minor carbonate in line with bedding and crenulated VN W very weak silica vuggy fracture fill only 4-5 (40/220) 13GS FOL F 40 very thin white vuggy qtz CRN 40 thin carb in line with bedding as well as foliated mud layers are crenulated in center of unit. Changeable BD dc Magnetite bearing silicate iron format 13GS essentially a mudstone rich in iron with chert beds and magnetite beds and chlorite bowtie alteration. Pervasive carbonate alteration from shearing and infill, pyrrhotite mineralization of similar provenance. Chert beds are pretty much all boudinaged. There are a few sections with just more dominantly phyllitic mud material. Veinlets and carbonate mostly pass by the dominantly mud sections, as does pyrrhotite mineralization, which usually <2% as associated with the shearing, edges of boudins, etc. No grunerite seen. Actinolite. Structure is mostly sheared and boudinanged all the way through unit except mud beds, lots of sheeted carbonate fractures but the sheared texture is much more complex than just that, lots of broken up chert boudins and chaotic looking web of alteration mineralization infiltrating non-chert material. Chlorite and muddier material looks coarse grained where altered to chlorite/graphite (?)/a bit foliated VN M P MS PCH W B M carbonate alteration is infill in little white 13GS GS GS GS GS GS Apr-13 12:18:23 PM Page 28 of 53

29 (m) (m) Lithology Sample # Length windy wispy openings, pervasive sections look pseudobrecciated, very pervasive on a local level, includes fracture fill along shea /S 1/SH / / / / / HR R not in mudstone subunits. Patchy SHR generally sheared and fracture filled with carbonate alteration ot the point of pseudo brecciation; very common in this unit in general especially anywhere that has lots of chlorite and mud presence (which is most places) but because of stupid nested interval rules I can't put that in! SHR 23 shear line with bedding offset by approx 1cm, infill carbonate with pseudo breccia BD F 35 pervasive fracture fill carbonate etc BOUD chert beds are boudinaged, often with halos of various alteration types F 36 fracture with fill of white carbonate but different orientation than the vast majority of the more sheeted carbonate infill veinlets in this unit. Rock is also actually fractured along one edege of the infill BD Carb/Qtz VERY APPROX. abundant fracture fill veinlets thiugh whole section; looks like lots of shearing/ healed fractures and faults Minor Interval: a Phyllitic mudstone a Phyllitic mudstone 04-Apr-13 12:18:23 PM Page 29 of 53

30 (m) (m) Lithology Sample # Length c Massive mudstone; argillite 13GS flt m mostly mudstone some chert. Mostly phyllitic. A slightly more competent section in the fault zone is really interesting, it is a healed fault/fracture in a 2dc unit like the last one with mud, chlorite, magnetite, and chert with some po, with a clear offset contact running parallel TCA, 5 deg TCA at most; the 2dc parts on either side of the line are clearly offset by more than just a few cms. This section of the fragmental fault zone ( m) is mostly healed. Graphite alteration not uncommon, especially near fault. Fault is fragmental and material is extremely fissile, graphite altered, and of low competency. Gouge surfaces not uncommon. Many brittle cracks more or less low angle TCA FF W PCH W P MS minor chlorite alt in subunit section, that section also has chert and qtz. Graphite alteration greatest visible in the faulted are 13GS GS GS FOL 35 in healed fault zone. Looks like bedding FLT 5 healed fault in subunit FLT fault zone with graphite alterationa nd gouge and tons of fragmental sliverly pieces and rubble, very fissile and incompetent. Minor Interval: dc Magnetite bearing silicate iron formatio same as last unit see main comments, healed fault zone dc Magnetite bearing silicate iron format 13GS mixture of mud and silicate iron formation, sheared with fracture infill, pseudo brecciation; other than qtzrich areas rock is incredibly soft, looks like a mix of mud and coarse chlorite grains. Pretty much the same as the last 2dc unit but with less magnetite. Coarse grained chlorite alteraiotn. Healed brecciation is siliciized. Coarse grained chlorite. 13GS Apr-13 12:18:23 PM Page 30 of 53

31 (m) (m) Lithology Sample # Length VN M P S B WM B W healed breccia and chlorite alteration. Almo no carbonate / 1.5/S / / / / / concentrated at lower contact HR FLT healed breccia fault BX see last Qtz qtz veinlets from healed breccia, chert beds a Phyllitic mudstone 13GS phyllitic mudstone with foliation and crenulation between iron formation lower iron formation and everything above. Becomes a bit more coarse and silty gradationally towrds the lower contact. A few scattered chert beds. Fractre fill with white qtz, <<1mm wide, approx 45/180 periodically. 13GS GS GS GS GS FOL 40 approximate hard to see and a bit funny from crenulation CRN 5 crn is low angle to core axis and hard to measure, seems to vary a bit Qtz approximate trend of fracture fill sheeted veinlets, <1mm wide, cut across foliation, irregular and 04-Apr-13 12:18:23 PM Page 31 of 53