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16M Green Lake
Burley Lake
Phantom Lake
Potter Bay (Phantom Lake)
316000
316000
317000
317000
6066
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6066
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6067
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This MapLocation Map
Catalogue Number 2006-4.2-(2.2)
!
Lake
Windy
Suggi
Lake
Lake
Lake
Lake
Mirond
Jan
Lake
Amisk
Goos
Athapapuskow
Lake
Lake
63L-0963L-10
63L-1663L-15
63K-12
63K-13
63M-02 63M-01 63N-04
63K-0563L-0863L-07
63L-11
63L-14
63M-03
63L-06
-103°
-103°
-102°
-102°
55°55°
Although the Department of Industry and Resources has exercised all reasonable care in the compilation, interpretation, and production of this item, it is not possible to ensure total accuracy, and all persons who rely on the information contained herein do so at their own risk. The Department of Industry and Resources and the Government of Saskatchewan do not accept liability for any errors, omissions, or inaccuracies that may be included in or derived from, this item.
Scale 1:3:000
102°0'0"W
102°0'0"W
Flin Flon
Flin Flon
Legend Intrusive Rocks Phantom Intrusive Suite Quartz-feldspar porphyry: pink weathering, fine- to medium-grained, variably feldspar ± quartz porphyritic Boundary Intrusions Gabbro: brown-weathering, medium to coarse-grained, pegmatitic patches, acicular amphibole, massive Syn-volcanic Intrusive Rocks Gabbro: reddish-brown weathering, fine- to medium-grained, massive A) aphyric; B) 2-8% plagioclase phenocrysts (3-8 mm in diameter) Aphyric mafic dykes and sills: brown-weathering, fine-grained to aphanitic, aphyric, massive -------------------------------------Intrusive Contact--------------------------------------- West of Green Lake Fault Aphyric rhyolite/rhyodacite: buff to white-weathering, aphanitic, aphyric, massive Plagioclase porphyritic rhyolite: buff to white-weathering, aphanitic, 1-2% plagioclase phenocrysts (1-3 mm diameter), massive Quartz porphyritic rhyolite: buff to white-weathering, aphanitic, 5-10% quartz phenocrysts (2-8 mm diameter), 1-2% plagioclase phenocrysts (1-3mm diameter), massive Mafic tuff1: light to dark green to orangey-brown weathering, thin bedded to laminated Porphyritic mafic flows: a) dark-green weathering, fine-grained to aphanitic, 12-20% plagioclase phenocrysts (2-8 mm), 1-2% pyroxene2 phenocrysts (1-4 mm), massive (M) and pillowed (P), in part with interpillow peperite (Pp); b) dark-green weathering, fine-grained to aphanitic, 5-7% plagioclase phenocrysts (1-4 mm), 2-4% pyroxene phenocrysts (1-4 mm), massive (M) and pillowed (P) Aphyric amygdaloidal3 mafic flows: intercalated with minor thin bedded to laminated mafic tuff (unit 17); M) massive flows/synvolcanic sills: dark-green to black-weathering, medium-grained to aphanitic, aphyric, 1-2% amygdules (1-4 mm); P) pillowed flows: dark-green to black-weathering, aphanitic, aphyric, 2-4% amygdules (1-5 mm); in part with inter pillow peporite (Pp) Between Burley and Green Lake Faults Aphyric pillowed mafic flows: greenish-brown-weathering, aphyric, non-amygdaloidal, multiple concentric cooling cracks, flattened pillows (up to 2 m long), abundant quartz veining in the pillow margins and interstices
Project M142 of 2006 The area was mapped by K. MacLachlan, in the summer of 2006, with the assistance of C. Johnson and R. Leray This map was printed from the geologist’s digital file. Geological data were processed using Pendragon Forms, Microsoft Access, and ArcView 9.1 software. Base maps were digitzed from orthorectified 2005 digital aerial photographs. Grid coordinates are NAD 83 UTM zone 14. The map was processed overall using ArcView 9.1 software. The map is issued in a package with the Summary of Investigations 2006 Volume 2, Saskatchewan Geological Survey, and is available separately. This map accompanies the following publication: MacLachlan, K. (2006): Stratigraphy, Structure and Silicification: New Results From Mapping in the Flin Flon Mining Camp, Creighton, Saskatchewan; in Summary of Investigations Volume 2, 2006, Saskatchewan Geological Survey, Sask. Industry Resources, Misc. Rep. 2006-4.2. . This map may be referenced as: MacLachlan (2006): Bedrock Geology Green Lake Area, Flin Flon Domain, (Part of NTS 63K/12); 1:3 000 scale prelim. map with Summary of Investigations Volume 2, 2006, Saskatchewan Geological Survey, Sask. Industry Resources, Misc. Rep. 2006-4.2.
Bedrock Geology Green Lake Area, Flin Flon Domain, (Part of NTS 63K/12) at 1:3 000 scale Preliminary Geological Map (2006) by K. MacLachlan
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Symbols Bedding (tops known): upright, overturned Bedding (tops unknown): inclined, sub-vertical Main Foliation (flattening fabric): inclined, sub-vertical Post-main Foliation: inclined, sub-vertical Spaced Cleavage: inclined, sub-vertical Shear Zone (sinistral): inclined, sub-vertical Shear Zone (dextral): inclined, sub-vertical Fault (sinistral): inclined, sub-vertical Fault (dextral): inclined, sub-vertical Fold Axial trace: plunging antiform Lineation: stretching Shear Zone: observed, inferred Brittle Fault: inferred Contact: observed, assumed, inferred Outcrop Outline 1 clast size < 2 mm, based on the non-genetic classification of Fisher (1966) 2 the mafic phenocrysts are inferred to have originally been pyroxene, but have been pseudomorphed
by greenschist-facies mafic minerals throughout the study area 3 amygdules are filled with quartz ± feldspar unless otherwise noted 4 clast size 2-64 mm, based on the non-genetic classification of Fisher (1966) 5 a rock generated by mixing of coherent lava or magma and unconsolidated wet sediment, and
characterized by a clastic texture in which either component may form the matrix (McPhie et al. 1993)
6 clast size > 64 mm, based on the non-genetic classification of Fisher (1966)
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Fisher, R.V. (1966): Rocks composed of volcanic fragments. Earth Science Reviews, v1, p287-298. McPhie, J., Doyle, M., and Allen, R. (1993): Volcanic textures: a guide to the interpretations in volcanic rocks; Centre for Ore Deposit and Exploration Studies, University of Tasmania, Hobart, Tasmania, 198p.
Mafic lapilli-tuff4: A) buff to light greenish-brown weathering, massive to thick-bedded, mafic tuffaceous matrix, with 15-20% aphyric mafic lapilli and rare aphyric amygdaloidal blocks; B) light grey to white-weathering, massive, 25-30% plagioclase crystals (2-4 mm in diameter), 5-8% dark grey aphyric flattened mafic clasts (4 mm to 10 cm long) Thin peperitic5 aphyric mafic flows: brownish-weathering, aphyric, 1-2% amygdules (1-4 mm), massive and pillowed, commonly with peperitic tops, individual flows 1-4 m thick; intercalated with thin bedded to laminated mafic tuff (unit 10) and poorly-bedded lapilli tuff (unit 13) Porphyritic mafic flows: A) greenish-weathering, fine-grained to aphanitic, 1-2% pyroxene phenocrysts (1-2 mm), 1-2% plagioclase phenocrysts (1-2 mm), massive to pillowed; intercalated with thin bedded to laminated mafic tuff; B) greenish-weathering, aphanitic, weakly amygdaloidal, 10-15% plagioclase phenocrysts (1-6 mm), pillowed, minor discontinuous tuff and lapilli tuff beds Mafic tuff: light to dark green to orangey-brown weathering, thin-bedded to laminated Intercalated mafic tuff, lapilli-tuff and mafic flows: a) mafic tuff/lapilli-tuff (> 80%): greyish-green weathering, medium- to thin-bedded, locally up to 10% pyroxene crystals; b) aphyric mafic flows: green-weathering, aphyric, aphanitic, sparsely amygdaloidal, massive and pillowed, individual flows 1-3 m thick c) porphyritic mafic flows; green-weathering, aphanitic, 1-2 % pyroxene phenocrysts (1-3 mm), 3-5% plagioclase phenocrysts (1-4 mm), sparsely amygdaloidal, massive and pillowed, individual flows 1-3 m thick Mafic and felsic tuff and lapilli-tuff: 10 to 15 m thick; intruded by rhyolite dyke/sill; a) mafic tuff: light green to buff-weathering, thin-bedded to laminated; b) felsic lapilli-tuff/tuff: orange to buff weathering, thin to medium-bedded; rough weathered surface; c) felsic tuff: light grey to white-weathering, thin bedded to laminated; d) rhyolite: light grey to white-weathering, aphyric aphanitic, locally spherulitic, massive to flow banded Massive mafic flows/sills and intercalated mafic tuff: a) aphyric mafic flows: green-weathering, aphanitic, aphyric, massive, sparsely amygdaloidal; b) porphyritic mafic flows: green-weathering, 1-3% plagioclase phenocrysts (1-4 mm), and ~1% pyroxene phenocrysts (1-2 mm long), 1-2% amygdules (2-5 mm), massive; c) mafic tuff: light to dark green to orangey-brown, thin-bedded to laminated. Scoriaceous mafic breccia6: intercalated with minor tuff, lapilli-tuff, tuff-breccia and plagioclase porphyritic pillowed flows; a) scoriaceous breccia: light green-weathering, massive to thick bedded, matrix to clast-supported, aphyric and plagioclase-porphyritic, subangular to subrounded scoriaceous fragments, tuffaceous matrix; b) tuff to tuff-breccia: light green-weathering, thin- to medium-bedded, aphyric and plagioclase-phyric scoriaceous lapilli and blocks, matrix supported, mafic tuffaceous matrix, locally up to 15% pyroxene crystals; c) porphyritic pillowed mafic flows: d) light-green-weathering, 15-20% plagioclase phenocrysts (2-8 mm long), up to 2% pyroxene phenocrysts (<1 to 2 mm long); discontinuous lenses. Mafic tuff/lapilli-tuff and intercalated aphyric mafic flows/sills: a) mafic tuff/lapilli tuff (> 80%): green-weathering, thin- to medium-bedded, up to 20% pyroxene and plagioclase crystals locally, both aphyric and plagioclase ± pyroxene porphyritic lapilli; b) mafic flows/sills (<20%): greenish-brown-weathering, aphanitic, aphyric, 1-2% amygdules (1-4 mm), massive Thin aphyric mafic flows: dark green-weathering, aphyric, massive, 2% amygdules (2-6 mm) in centre, 5-8% amygdules (2-6 mm) at top; individual flows up to 4 m thick; intercalated with minor thin bedded to laminated mafic tuff.
Mafic tuff: light to dark green to orangey-brown weathering, thin-bedded to laminated East of Burley Lake Fault Plagioclase porphyritic mafic flows/sills: light green to buff-weathering, fine-grained to aphanitic, massive, 12-15% plagioclase phenocrysts (2-5 mm) Aphyric mafic flows: light brown to buff-weathering, fine-grained to aphanitic, aphyric, locally spherulitic, massive, pillowed and flow brecciated tops; individual flows > 10 m thick
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